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1#define WIN32_LEAN_AND_MEAN
2#define NOMINMAX
3#include <windows.h>
4#include <d2d1.h>
5#include <dwrite.h>
6#include <fstream> // For file I/O
7#include <iostream> // For some basic I/O, though not strictly necessary for just file ops
8#include <vector>
9#include <cmath>
10#include <string>
11#include <sstream> // Required for wostringstream
12#include <algorithm> // Required for std::max, std::min
13#include <ctime>    // Required for srand, time
14#include <cstdlib> // Required for srand, rand (often included by others, but good practice)
15#include <commctrl.h> // Needed for radio buttons etc. in dialog (if using native controls)
16#include <mmsystem.h> // For PlaySound
17#include <tchar.h> //midi func
18#include <thread>
19#include <atomic>
20#include "resource.h"
21
22#pragma comment(lib, "Comctl32.lib") // Link against common controls library
23#pragma comment(lib, "d2d1.lib")
24#pragma comment(lib, "dwrite.lib")
25#pragma comment(lib, "Winmm.lib") // Link against Windows Multimedia library
26
27// --- Constants ---
28const float PI = 3.1415926535f;
29const float BALL_RADIUS = 10.0f;
30const float TABLE_LEFT = 100.0f;
31const float TABLE_TOP = 100.0f;
32const float TABLE_WIDTH = 700.0f;
33const float TABLE_HEIGHT = 350.0f;
34const float TABLE_RIGHT = TABLE_LEFT + TABLE_WIDTH;
35const float TABLE_BOTTOM = TABLE_TOP + TABLE_HEIGHT;
36const float CUSHION_THICKNESS = 20.0f;
37const float HOLE_VISUAL_RADIUS = 22.0f; // Visual size of the hole
38const float POCKET_RADIUS = HOLE_VISUAL_RADIUS * 1.05f; // Make detection radius slightly larger // Make detection radius match visual size (or slightly larger)
39const float MAX_SHOT_POWER = 15.0f;
40const float FRICTION = 0.985f; // Friction factor per frame
41const float MIN_VELOCITY_SQ = 0.01f * 0.01f; // Stop balls below this squared velocity
42const float HEADSTRING_X = TABLE_LEFT + TABLE_WIDTH * 0.30f; // 30% line
43const float RACK_POS_X = TABLE_LEFT + TABLE_WIDTH * 0.65f; // 65% line for rack apex
44const float RACK_POS_Y = TABLE_TOP + TABLE_HEIGHT / 2.0f;
45const UINT ID_TIMER = 1;
46const int TARGET_FPS = 60; // Target frames per second for timer
47
48// --- Enums ---
49// --- MODIFIED/NEW Enums ---
50enum GameState {
51    SHOWING_DIALOG,     // NEW: Game is waiting for initial dialog input
52    PRE_BREAK_PLACEMENT,// Player placing cue ball for break
53    BREAKING,           // Player is aiming/shooting the break shot
54    CHOOSING_POCKET_P1, // NEW: Player 1 needs to call a pocket for the 8-ball
55    CHOOSING_POCKET_P2, // NEW: Player 2 needs to call a pocket for the 8-ball
56    AIMING,             // Player is aiming
57    AI_THINKING,        // NEW: AI is calculating its move
58    SHOT_IN_PROGRESS,   // Balls are moving
59    ASSIGNING_BALLS,    // Turn after break where ball types are assigned
60    PLAYER1_TURN,
61    PLAYER2_TURN,
62    BALL_IN_HAND_P1,
63    BALL_IN_HAND_P2,
64    GAME_OVER
65};
66
67enum BallType {
68    NONE,
69    SOLID,  // Yellow (1-7)
70    STRIPE, // Red (9-15)
71    EIGHT_BALL, // Black (8)
72    CUE_BALL // White (0)
73};
74
75// NEW Enums for Game Mode and AI Difficulty
76enum GameMode {
77    HUMAN_VS_HUMAN,
78    HUMAN_VS_AI
79};
80
81enum AIDifficulty {
82    EASY,
83    MEDIUM,
84    HARD
85};
86
87enum OpeningBreakMode {
88    CPU_BREAK,
89    P1_BREAK,
90    FLIP_COIN_BREAK
91};
92
93// --- Structs ---
94struct Ball {
95    int id;             // 0=Cue, 1-7=Solid, 8=Eight, 9-15=Stripe
96    BallType type;
97    float x, y;
98    float vx, vy;
99    D2D1_COLOR_F color;
100    bool isPocketed;
101};
102
103struct PlayerInfo {
104    BallType assignedType;
105    int ballsPocketedCount;
106    std::wstring name;
107};
108
109// --- Global Variables ---
110
111// Direct2D & DirectWrite
112ID2D1Factory* pFactory = nullptr;
113//ID2D1Factory* g_pD2DFactory = nullptr;
114ID2D1HwndRenderTarget* pRenderTarget = nullptr;
115IDWriteFactory* pDWriteFactory = nullptr;
116IDWriteTextFormat* pTextFormat = nullptr;
117IDWriteTextFormat* pLargeTextFormat = nullptr; // For "Foul!"
118
119// Game State
120HWND hwndMain = nullptr;
121GameState currentGameState = SHOWING_DIALOG; // Start by showing dialog
122std::vector<Ball> balls;
123int currentPlayer = 1; // 1 or 2
124PlayerInfo player1Info = { BallType::NONE, 0, L"Player 1" };
125PlayerInfo player2Info = { BallType::NONE, 0, L"CPU" }; // Default P2 name
126bool foulCommitted = false;
127std::wstring gameOverMessage = L"";
128bool firstBallPocketedAfterBreak = false;
129std::vector<int> pocketedThisTurn;
130// --- NEW: 8-Ball Pocket Call Globals ---
131int calledPocketP1 = -1; // Pocket index (0-5) called by Player 1 for the 8-ball. -1 means not called.
132int calledPocketP2 = -1; // Pocket index (0-5) called by Player 2 for the 8-ball.
133int currentlyHoveredPocket = -1; // For visual feedback on which pocket is being hovered
134std::wstring pocketCallMessage = L""; // Message like "Choose a pocket..."
135
136// --- NEW: Foul Tracking Globals ---
137int firstHitBallIdThisShot = -1;      // ID of the first object ball hit by cue ball (-1 if none)
138bool cueHitObjectBallThisShot = false; // Did cue ball hit an object ball this shot?
139bool railHitAfterContact = false;     // Did any ball hit a rail AFTER cue hit an object ball?
140// --- End New Foul Tracking Globals ---
141
142// NEW Game Mode/AI Globals
143GameMode gameMode = HUMAN_VS_HUMAN; // Default mode
144AIDifficulty aiDifficulty = MEDIUM; // Default difficulty
145OpeningBreakMode openingBreakMode = CPU_BREAK; // Default opening break mode
146bool isPlayer2AI = false;           // Is Player 2 controlled by AI?
147bool aiTurnPending = false;         // Flag: AI needs to take its turn when possible
148// bool aiIsThinking = false;       // Replaced by AI_THINKING game state
149// NEW: Flag to indicate if the current shot is the opening break of the game
150bool isOpeningBreakShot = false;
151
152// NEW: For AI shot planning and visualization
153struct AIPlannedShot {
154    float angle;
155    float power;
156    float spinX;
157    float spinY;
158    bool isValid; // Is there a valid shot planned?
159};
160AIPlannedShot aiPlannedShotDetails; // Stores the AI's next shot
161bool aiIsDisplayingAim = false;    // True when AI has decided a shot and is in "display aim" mode
162int aiAimDisplayFramesLeft = 0;  // How many frames left to display AI aim
163const int AI_AIM_DISPLAY_DURATION_FRAMES = 45; // Approx 0.75 seconds at 60 FPS, adjust as needed
164
165// Input & Aiming
166POINT ptMouse = { 0, 0 };
167bool isAiming = false;
168bool isDraggingCueBall = false;
169// --- ENSURE THIS LINE EXISTS HERE ---
170bool isDraggingStick = false; // True specifically when drag initiated on the stick graphic
171// --- End Ensure ---
172bool isSettingEnglish = false;
173D2D1_POINT_2F aimStartPoint = { 0, 0 };
174float cueAngle = 0.0f;
175float shotPower = 0.0f;
176float cueSpinX = 0.0f; // Range -1 to 1
177float cueSpinY = 0.0f; // Range -1 to 1
178float pocketFlashTimer = 0.0f;
179bool cheatModeEnabled = false; // Cheat Mode toggle (G key)
180int draggingBallId = -1;
181bool keyboardAimingActive = false; // NEW FLAG: true when arrow keys modify aim/power
182MCIDEVICEID midiDeviceID = 0; //midi func
183std::atomic<bool> isMusicPlaying(false); //midi func
184std::thread musicThread; //midi func
185void StartMidi(HWND hwnd, const TCHAR* midiPath);
186void StopMidi();
187
188// UI Element Positions
189D2D1_RECT_F powerMeterRect = { TABLE_RIGHT + CUSHION_THICKNESS + 10, TABLE_TOP, TABLE_RIGHT + CUSHION_THICKNESS + 40, TABLE_BOTTOM };
190D2D1_RECT_F spinIndicatorRect = { TABLE_LEFT - CUSHION_THICKNESS - 60, TABLE_TOP + 20, TABLE_LEFT - CUSHION_THICKNESS - 20, TABLE_TOP + 60 }; // Circle area
191D2D1_POINT_2F spinIndicatorCenter = { spinIndicatorRect.left + (spinIndicatorRect.right - spinIndicatorRect.left) / 2.0f, spinIndicatorRect.top + (spinIndicatorRect.bottom - spinIndicatorRect.top) / 2.0f };
192float spinIndicatorRadius = (spinIndicatorRect.right - spinIndicatorRect.left) / 2.0f;
193D2D1_RECT_F pocketedBallsBarRect = { TABLE_LEFT, TABLE_BOTTOM + CUSHION_THICKNESS + 30, TABLE_RIGHT, TABLE_BOTTOM + CUSHION_THICKNESS + 70 };
194
195// Corrected Pocket Center Positions (aligned with table corners/edges)
196const D2D1_POINT_2F pocketPositions[6] = {
197    {TABLE_LEFT, TABLE_TOP},                           // Top-Left
198    {TABLE_LEFT + TABLE_WIDTH / 2.0f, TABLE_TOP},      // Top-Middle
199    {TABLE_RIGHT, TABLE_TOP},                          // Top-Right
200    {TABLE_LEFT, TABLE_BOTTOM},                        // Bottom-Left
201    {TABLE_LEFT + TABLE_WIDTH / 2.0f, TABLE_BOTTOM},   // Bottom-Middle
202    {TABLE_RIGHT, TABLE_BOTTOM}                        // Bottom-Right
203};
204
205// Colors
206const D2D1_COLOR_F TABLE_COLOR = D2D1::ColorF(0.1608f, 0.4000f, 0.1765f); // Darker Green NEWCOLOR (0.0f, 0.5f, 0.1f) => (0.1608f, 0.4000f, 0.1765f)
207//const D2D1_COLOR_F TABLE_COLOR = D2D1::ColorF(0.0f, 0.5f, 0.1f); // Darker Green NEWCOLOR (0.0f, 0.5f, 0.1f) => (0.1608f, 0.4000f, 0.1765f)
208const D2D1_COLOR_F CUSHION_COLOR = D2D1::ColorF(D2D1::ColorF(0.3608f, 0.0275f, 0.0078f)); // NEWCOLOR ::Red => (0.3608f, 0.0275f, 0.0078f)
209//const D2D1_COLOR_F CUSHION_COLOR = D2D1::ColorF(D2D1::ColorF::Red); // NEWCOLOR ::Red => (0.3608f, 0.0275f, 0.0078f)
210const D2D1_COLOR_F POCKET_COLOR = D2D1::ColorF(D2D1::ColorF::Black);
211const D2D1_COLOR_F CUE_BALL_COLOR = D2D1::ColorF(D2D1::ColorF::White);
212const D2D1_COLOR_F EIGHT_BALL_COLOR = D2D1::ColorF(D2D1::ColorF::Black);
213const D2D1_COLOR_F SOLID_COLOR = D2D1::ColorF(D2D1::ColorF::Yellow); // Solids = Yellow
214const D2D1_COLOR_F STRIPE_COLOR = D2D1::ColorF(D2D1::ColorF::Red);   // Stripes = Red
215const D2D1_COLOR_F AIM_LINE_COLOR = D2D1::ColorF(D2D1::ColorF::White, 0.7f); // Semi-transparent white
216const D2D1_COLOR_F FOUL_TEXT_COLOR = D2D1::ColorF(D2D1::ColorF::Red);
217const D2D1_COLOR_F TURN_ARROW_COLOR = D2D1::ColorF(0.1333f, 0.7294f, 0.7490f); //NEWCOLOR 0.1333f, 0.7294f, 0.7490f => ::Blue
218//const D2D1_COLOR_F TURN_ARROW_COLOR = D2D1::ColorF(D2D1::ColorF::Blue);
219const D2D1_COLOR_F ENGLISH_DOT_COLOR = D2D1::ColorF(D2D1::ColorF::Red);
220const D2D1_COLOR_F UI_TEXT_COLOR = D2D1::ColorF(D2D1::ColorF::Black);
221
222// --- Forward Declarations ---
223HRESULT CreateDeviceResources();
224void DiscardDeviceResources();
225void OnPaint();
226void OnResize(UINT width, UINT height);
227void InitGame();
228void GameUpdate();
229void UpdatePhysics();
230void CheckCollisions();
231bool CheckPockets(); // Returns true if any ball was pocketed
232void ProcessShotResults();
233void ApplyShot(float power, float angle, float spinX, float spinY);
234void RespawnCueBall(bool behindHeadstring);
235bool AreBallsMoving();
236void SwitchTurns();
237void AssignPlayerBallTypes(BallType firstPocketedType);
238void CheckGameOverConditions(bool eightBallPocketed, bool cueBallPocketed);
239Ball* GetBallById(int id);
240Ball* GetCueBall();
241//void PlayGameMusic(HWND hwnd); //midi func
242void AIBreakShot();
243
244// Drawing Functions
245void DrawScene(ID2D1RenderTarget* pRT);
246void DrawTable(ID2D1RenderTarget* pRT, ID2D1Factory* pFactory);
247void DrawBalls(ID2D1RenderTarget* pRT);
248void DrawCueStick(ID2D1RenderTarget* pRT);
249void DrawAimingAids(ID2D1RenderTarget* pRT);
250void DrawUI(ID2D1RenderTarget* pRT);
251void DrawPowerMeter(ID2D1RenderTarget* pRT);
252void DrawSpinIndicator(ID2D1RenderTarget* pRT);
253void DrawPocketedBallsIndicator(ID2D1RenderTarget* pRT);
254void DrawBallInHandIndicator(ID2D1RenderTarget* pRT);
255// NEW
256void DrawPocketSelectionIndicator(ID2D1RenderTarget* pRT);
257
258// Helper Functions
259float GetDistance(float x1, float y1, float x2, float y2);
260float GetDistanceSq(float x1, float y1, float x2, float y2);
261bool IsValidCueBallPosition(float x, float y, bool checkHeadstring);
262template <typename T> void SafeRelease(T** ppT);
263// --- NEW HELPER FORWARD DECLARATIONS ---
264bool IsPlayerOnEightBall(int player);
265void CheckAndTransitionToPocketChoice(int playerID);
266// --- ADD FORWARD DECLARATION FOR NEW HELPER HERE ---
267float PointToLineSegmentDistanceSq(D2D1_POINT_2F p, D2D1_POINT_2F a, D2D1_POINT_2F b);
268// --- End Forward Declaration ---
269bool LineSegmentIntersection(D2D1_POINT_2F p1, D2D1_POINT_2F p2, D2D1_POINT_2F p3, D2D1_POINT_2F p4, D2D1_POINT_2F& intersection); // Keep this if present
270
271// --- NEW Forward Declarations ---
272
273// AI Related
274struct AIShotInfo; // Define below
275void TriggerAIMove();
276void AIMakeDecision();
277void AIPlaceCueBall();
278AIShotInfo AIFindBestShot();
279AIShotInfo EvaluateShot(Ball* targetBall, int pocketIndex);
280bool IsPathClear(D2D1_POINT_2F start, D2D1_POINT_2F end, int ignoredBallId1, int ignoredBallId2);
281Ball* FindFirstHitBall(D2D1_POINT_2F start, float angle, float& hitDistSq); // Added hitDistSq output
282float CalculateShotPower(float cueToGhostDist, float targetToPocketDist);
283D2D1_POINT_2F CalculateGhostBallPos(Ball* targetBall, int pocketIndex);
284bool IsValidAIAimAngle(float angle); // Basic check
285
286// Dialog Related
287INT_PTR CALLBACK NewGameDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
288void ShowNewGameDialog(HINSTANCE hInstance);
289void LoadSettings(); // For deserialization
290void SaveSettings(); // For serialization
291const std::wstring SETTINGS_FILE_NAME = L"Pool-Settings.txt";
292void ResetGame(HINSTANCE hInstance); // Function to handle F2 reset
293
294// --- Forward Declaration for Window Procedure --- <<< Add this line HERE
295LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
296
297// --- NEW Struct for AI Shot Evaluation ---
298struct AIShotInfo {
299    bool possible = false;          // Is this shot considered viable?
300    Ball* targetBall = nullptr;     // Which ball to hit
301    int pocketIndex = -1;           // Which pocket to aim for (0-5)
302    D2D1_POINT_2F ghostBallPos = { 0,0 }; // Where cue ball needs to hit target ball
303    float angle = 0.0f;             // Calculated shot angle
304    float power = 0.0f;             // Calculated shot power
305    float score = -1.0f;            // Score for this shot (higher is better)
306    bool involves8Ball = false;     // Is the target the 8-ball?
307};
308
309/*
310table = TABLE_COLOR new: #29662d (0.1608, 0.4000, 0.1765) => old: (0.0f, 0.5f, 0.1f)
311rail CUSHION_COLOR = #5c0702 (0.3608, 0.0275, 0.0078) => ::Red
312gap = #e99d33 (0.9157, 0.6157, 0.2000) => ::Orange
313winbg = #5e8863 (0.3686, 0.5333, 0.3882) => 1.0f, 1.0f, 0.803f
314headstring = #47742f (0.2784, 0.4549, 0.1843) => ::White
315bluearrow = #08b0a5 (0.0314, 0.6902, 0.6471) *#22babf (0.1333,0.7294,0.7490) => ::Blue
316*/
317
318// --- NEW Settings Serialization Functions ---
319void SaveSettings() {
320    std::ofstream outFile(SETTINGS_FILE_NAME);
321    if (outFile.is_open()) {
322        outFile << static_cast<int>(gameMode) << std::endl;
323        outFile << static_cast<int>(aiDifficulty) << std::endl;
324        outFile << static_cast<int>(openingBreakMode) << std::endl;
325        outFile.close();
326    }
327    // else: Handle error, e.g., log or silently fail
328}
329
330void LoadSettings() {
331    std::ifstream inFile(SETTINGS_FILE_NAME);
332    if (inFile.is_open()) {
333        int gm, aid, obm;
334        if (inFile >> gm) {
335            gameMode = static_cast<GameMode>(gm);
336        }
337        if (inFile >> aid) {
338            aiDifficulty = static_cast<AIDifficulty>(aid);
339        }
340        if (inFile >> obm) {
341            openingBreakMode = static_cast<OpeningBreakMode>(obm);
342        }
343        inFile.close();
344
345        // Validate loaded settings (optional, but good practice)
346        if (gameMode < HUMAN_VS_HUMAN || gameMode > HUMAN_VS_AI) gameMode = HUMAN_VS_HUMAN; // Default
347        if (aiDifficulty < EASY || aiDifficulty > HARD) aiDifficulty = MEDIUM; // Default
348        if (openingBreakMode < CPU_BREAK || openingBreakMode > FLIP_COIN_BREAK) openingBreakMode = CPU_BREAK; // Default
349    }
350    // else: File doesn't exist or couldn't be opened, use defaults (already set in global vars)
351}
352// --- End Settings Serialization Functions ---
353
354// --- NEW Dialog Procedure ---
355INT_PTR CALLBACK NewGameDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) {
356    switch (message) {
357    case WM_INITDIALOG:
358    {
359        // --- ACTION 4: Center Dialog Box ---
360// Optional: Force centering if default isn't working
361        RECT rcDlg, rcOwner, rcScreen;
362        HWND hwndOwner = GetParent(hDlg); // GetParent(hDlg) might be better if hwndMain is passed
363        if (hwndOwner == NULL) hwndOwner = GetDesktopWindow();
364
365        GetWindowRect(hwndOwner, &rcOwner);
366        GetWindowRect(hDlg, &rcDlg);
367        CopyRect(&rcScreen, &rcOwner); // Use owner rect as reference bounds
368
369        // Offset the owner rect relative to the screen if it's not the desktop
370        if (GetParent(hDlg) != NULL) { // If parented to main window (passed to DialogBoxParam)
371            OffsetRect(&rcOwner, -rcScreen.left, -rcScreen.top);
372            OffsetRect(&rcDlg, -rcScreen.left, -rcScreen.top);
373            OffsetRect(&rcScreen, -rcScreen.left, -rcScreen.top);
374        }
375
376
377        // Calculate centered position
378        int x = rcOwner.left + (rcOwner.right - rcOwner.left - (rcDlg.right - rcDlg.left)) / 2;
379        int y = rcOwner.top + (rcOwner.bottom - rcOwner.top - (rcDlg.bottom - rcDlg.top)) / 2;
380
381        // Ensure it stays within screen bounds (optional safety)
382        x = std::max(static_cast<int>(rcScreen.left), x);
383        y = std::max(static_cast<int>(rcScreen.top), y);
384        if (x + (rcDlg.right - rcDlg.left) > rcScreen.right)
385            x = rcScreen.right - (rcDlg.right - rcDlg.left);
386        if (y + (rcDlg.bottom - rcDlg.top) > rcScreen.bottom)
387            y = rcScreen.bottom - (rcDlg.bottom - rcDlg.top);
388
389
390        // Set the dialog position
391        SetWindowPos(hDlg, HWND_TOP, x, y, 0, 0, SWP_NOSIZE);
392
393        // --- End Centering Code ---
394
395        // Set initial state based on current global settings (or defaults)
396        CheckRadioButton(hDlg, IDC_RADIO_2P, IDC_RADIO_CPU, (gameMode == HUMAN_VS_HUMAN) ? IDC_RADIO_2P : IDC_RADIO_CPU);
397
398        CheckRadioButton(hDlg, IDC_RADIO_EASY, IDC_RADIO_HARD,
399            (aiDifficulty == EASY) ? IDC_RADIO_EASY : ((aiDifficulty == MEDIUM) ? IDC_RADIO_MEDIUM : IDC_RADIO_HARD));
400
401        // Enable/Disable AI group based on initial mode
402        EnableWindow(GetDlgItem(hDlg, IDC_GROUP_AI), gameMode == HUMAN_VS_AI);
403        EnableWindow(GetDlgItem(hDlg, IDC_RADIO_EASY), gameMode == HUMAN_VS_AI);
404        EnableWindow(GetDlgItem(hDlg, IDC_RADIO_MEDIUM), gameMode == HUMAN_VS_AI);
405        EnableWindow(GetDlgItem(hDlg, IDC_RADIO_HARD), gameMode == HUMAN_VS_AI);
406        // Set initial state for Opening Break Mode
407        CheckRadioButton(hDlg, IDC_RADIO_CPU_BREAK, IDC_RADIO_FLIP_BREAK,
408            (openingBreakMode == CPU_BREAK) ? IDC_RADIO_CPU_BREAK : ((openingBreakMode == P1_BREAK) ? IDC_RADIO_P1_BREAK : IDC_RADIO_FLIP_BREAK));
409        // Enable/Disable Opening Break group based on initial mode
410        EnableWindow(GetDlgItem(hDlg, IDC_GROUP_BREAK_MODE), gameMode == HUMAN_VS_AI);
411        EnableWindow(GetDlgItem(hDlg, IDC_RADIO_CPU_BREAK), gameMode == HUMAN_VS_AI);
412        EnableWindow(GetDlgItem(hDlg, IDC_RADIO_P1_BREAK), gameMode == HUMAN_VS_AI);
413        EnableWindow(GetDlgItem(hDlg, IDC_RADIO_FLIP_BREAK), gameMode == HUMAN_VS_AI);
414    }
415    return (INT_PTR)TRUE;
416
417    case WM_COMMAND:
418        switch (LOWORD(wParam)) {
419        case IDC_RADIO_2P:
420        case IDC_RADIO_CPU:
421        {
422            bool isCPU = IsDlgButtonChecked(hDlg, IDC_RADIO_CPU) == BST_CHECKED;
423            // Enable/Disable AI group controls based on selection
424            EnableWindow(GetDlgItem(hDlg, IDC_GROUP_AI), isCPU);
425            EnableWindow(GetDlgItem(hDlg, IDC_RADIO_EASY), isCPU);
426            EnableWindow(GetDlgItem(hDlg, IDC_RADIO_MEDIUM), isCPU);
427            EnableWindow(GetDlgItem(hDlg, IDC_RADIO_HARD), isCPU);
428            // Also enable/disable Opening Break Mode group
429            EnableWindow(GetDlgItem(hDlg, IDC_GROUP_BREAK_MODE), isCPU);
430            EnableWindow(GetDlgItem(hDlg, IDC_RADIO_CPU_BREAK), isCPU);
431            EnableWindow(GetDlgItem(hDlg, IDC_RADIO_P1_BREAK), isCPU);
432            EnableWindow(GetDlgItem(hDlg, IDC_RADIO_FLIP_BREAK), isCPU);
433        }
434        return (INT_PTR)TRUE;
435
436        case IDOK:
437            // Retrieve selected options and store in global variables
438            if (IsDlgButtonChecked(hDlg, IDC_RADIO_CPU) == BST_CHECKED) {
439                gameMode = HUMAN_VS_AI;
440                if (IsDlgButtonChecked(hDlg, IDC_RADIO_EASY) == BST_CHECKED) aiDifficulty = EASY;
441                else if (IsDlgButtonChecked(hDlg, IDC_RADIO_MEDIUM) == BST_CHECKED) aiDifficulty = MEDIUM;
442                else if (IsDlgButtonChecked(hDlg, IDC_RADIO_HARD) == BST_CHECKED) aiDifficulty = HARD;
443
444                if (IsDlgButtonChecked(hDlg, IDC_RADIO_CPU_BREAK) == BST_CHECKED) openingBreakMode = CPU_BREAK;
445                else if (IsDlgButtonChecked(hDlg, IDC_RADIO_P1_BREAK) == BST_CHECKED) openingBreakMode = P1_BREAK;
446                else if (IsDlgButtonChecked(hDlg, IDC_RADIO_FLIP_BREAK) == BST_CHECKED) openingBreakMode = FLIP_COIN_BREAK;
447            }
448            else {
449                gameMode = HUMAN_VS_HUMAN;
450                // openingBreakMode doesn't apply to HvsH, can leave as is or reset
451            }
452            SaveSettings(); // Save settings when OK is pressed
453            EndDialog(hDlg, IDOK); // Close dialog, return IDOK
454            return (INT_PTR)TRUE;
455
456        case IDCANCEL: // Handle Cancel or closing the dialog
457            // Optionally, could reload settings here if you want cancel to revert to previously saved state
458            EndDialog(hDlg, IDCANCEL);
459            return (INT_PTR)TRUE;
460        }
461        break; // End WM_COMMAND
462    }
463    return (INT_PTR)FALSE; // Default processing
464}
465
466// --- NEW Helper to Show Dialog ---
467void ShowNewGameDialog(HINSTANCE hInstance) {
468    if (DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_NEWGAMEDLG), hwndMain, NewGameDialogProc, 0) == IDOK) {
469        // User clicked Start, reset game with new settings
470        isPlayer2AI = (gameMode == HUMAN_VS_AI); // Update AI flag
471        if (isPlayer2AI) {
472            switch (aiDifficulty) {
473            case EASY: player2Info.name = L"CPU (Easy)"; break;
474            case MEDIUM: player2Info.name = L"CPU (Medium)"; break;
475            case HARD: player2Info.name = L"CPU (Hard)"; break;
476            }
477        }
478        else {
479            player2Info.name = L"Player 2";
480        }
481        // Update window title
482        std::wstring windowTitle = L"Direct2D 8-Ball Pool";
483        if (gameMode == HUMAN_VS_HUMAN) windowTitle += L" (Human vs Human)";
484        else windowTitle += L" (Human vs " + player2Info.name + L")";
485        SetWindowText(hwndMain, windowTitle.c_str());
486
487        InitGame(); // Re-initialize game logic & board
488        InvalidateRect(hwndMain, NULL, TRUE); // Force redraw
489    }
490    else {
491        // User cancelled dialog - maybe just resume game? Or exit?
492        // For simplicity, we do nothing, game continues as it was.
493        // To exit on cancel from F2, would need more complex state management.
494    }
495}
496
497// --- NEW Reset Game Function ---
498void ResetGame(HINSTANCE hInstance) {
499    // Call the helper function to show the dialog and re-init if OK clicked
500    ShowNewGameDialog(hInstance);
501}
502
503// --- WinMain ---
504int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR, int nCmdShow) {
505    if (FAILED(CoInitialize(NULL))) {
506        MessageBox(NULL, L"COM Initialization Failed.", L"Error", MB_OK | MB_ICONERROR);
507        return -1;
508    }
509
510    // --- NEW: Load settings at startup ---
511    LoadSettings();
512
513    // --- NEW: Show configuration dialog FIRST ---
514    if (DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_NEWGAMEDLG), NULL, NewGameDialogProc, 0) != IDOK) {
515        // User cancelled the dialog
516        CoUninitialize();
517        return 0; // Exit gracefully if dialog cancelled
518    }
519    // Global gameMode and aiDifficulty are now set by the DialogProc
520
521    // Set AI flag based on game mode
522    isPlayer2AI = (gameMode == HUMAN_VS_AI);
523    if (isPlayer2AI) {
524        switch (aiDifficulty) {
525        case EASY: player2Info.name = L"CPU (Easy)"; break;
526        case MEDIUM: player2Info.name = L"CPU (Medium)"; break;
527        case HARD: player2Info.name = L"CPU (Hard)"; break;
528        }
529    }
530    else {
531        player2Info.name = L"Player 2";
532    }
533    // --- End of Dialog Logic ---
534
535
536    WNDCLASS wc = { };
537    wc.lpfnWndProc = WndProc;
538    wc.hInstance = hInstance;
539    wc.lpszClassName = L"Direct2D_8BallPool";
540    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
541    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
542    wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1)); // Use your actual icon ID here
543
544    if (!RegisterClass(&wc)) {
545        MessageBox(NULL, L"Window Registration Failed.", L"Error", MB_OK | MB_ICONERROR);
546        CoUninitialize();
547        return -1;
548    }
549
550    // --- ACTION 4: Calculate Centered Window Position ---
551    const int WINDOW_WIDTH = 1000; // Define desired width
552    const int WINDOW_HEIGHT = 700; // Define desired height
553    int screenWidth = GetSystemMetrics(SM_CXSCREEN);
554    int screenHeight = GetSystemMetrics(SM_CYSCREEN);
555    int windowX = (screenWidth - WINDOW_WIDTH) / 2;
556    int windowY = (screenHeight - WINDOW_HEIGHT) / 2;
557
558    // --- Change Window Title based on mode ---
559    std::wstring windowTitle = L"Direct2D 8-Ball Pool";
560    if (gameMode == HUMAN_VS_HUMAN) windowTitle += L" (Human vs Human)";
561    else windowTitle += L" (Human vs " + player2Info.name + L")";
562
563    DWORD dwStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX; // No WS_THICKFRAME, No WS_MAXIMIZEBOX
564
565    hwndMain = CreateWindowEx(
566        0, L"Direct2D_8BallPool", windowTitle.c_str(), dwStyle,
567        windowX, windowY, WINDOW_WIDTH, WINDOW_HEIGHT,
568        NULL, NULL, hInstance, NULL
569    );
570
571    if (!hwndMain) {
572        MessageBox(NULL, L"Window Creation Failed.", L"Error", MB_OK | MB_ICONERROR);
573        CoUninitialize();
574        return -1;
575    }
576
577    // Initialize Direct2D Resources AFTER window creation
578    if (FAILED(CreateDeviceResources())) {
579        MessageBox(NULL, L"Failed to create Direct2D resources.", L"Error", MB_OK | MB_ICONERROR);
580        DestroyWindow(hwndMain);
581        CoUninitialize();
582        return -1;
583    }
584
585    InitGame(); // Initialize game state AFTER resources are ready & mode is set
586    Sleep(500); // Allow window to fully initialize before starting the countdown //midi func
587    StartMidi(hwndMain, TEXT("BSQ.MID")); // Replace with your MIDI filename
588    //PlayGameMusic(hwndMain); //midi func
589
590    ShowWindow(hwndMain, nCmdShow);
591    UpdateWindow(hwndMain);
592
593    if (!SetTimer(hwndMain, ID_TIMER, 1000 / TARGET_FPS, NULL)) {
594        MessageBox(NULL, L"Could not SetTimer().", L"Error", MB_OK | MB_ICONERROR);
595        DestroyWindow(hwndMain);
596        CoUninitialize();
597        return -1;
598    }
599
600    MSG msg = { };
601    // --- Modified Main Loop ---
602    // Handles the case where the game starts in SHOWING_DIALOG state (handled now before loop)
603    // or gets reset to it via F2. The main loop runs normally once game starts.
604    while (GetMessage(&msg, NULL, 0, 0)) {
605        // We might need modeless dialog handling here if F2 shows dialog
606        // while window is active, but DialogBoxParam is modal.
607        // Let's assume F2 hides main window, shows dialog, then restarts game loop.
608        // Simpler: F2 calls ResetGame which calls DialogBoxParam (modal) then InitGame.
609        TranslateMessage(&msg);
610        DispatchMessage(&msg);
611    }
612
613
614    KillTimer(hwndMain, ID_TIMER);
615    DiscardDeviceResources();
616    SaveSettings(); // Save settings on exit
617    CoUninitialize();
618
619    return (int)msg.wParam;
620}
621
622// --- WndProc ---
623LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
624    // Declare cueBall pointer once at the top, used in multiple cases
625    // For clarity, often better to declare within each case where needed.
626    Ball* cueBall = nullptr; // Initialize to nullptr
627    switch (msg) {
628    case WM_CREATE:
629        // Resources are now created in WinMain after CreateWindowEx
630        return 0;
631
632    case WM_PAINT:
633        OnPaint();
634        // Validate the entire window region after painting
635        ValidateRect(hwnd, NULL);
636        return 0;
637
638    case WM_SIZE: {
639        UINT width = LOWORD(lParam);
640        UINT height = HIWORD(lParam);
641        OnResize(width, height);
642        return 0;
643    }
644
645    case WM_TIMER:
646        if (wParam == ID_TIMER) {
647            GameUpdate(); // Update game logic and physics
648            InvalidateRect(hwnd, NULL, FALSE); // Request redraw
649        }
650        return 0;
651
652        // --- NEW: Handle F2 Key for Reset ---
653        // --- MODIFIED: Handle More Keys ---
654    case WM_KEYDOWN:
655    { // Add scope for variable declarations
656
657        // --- FIX: Get Cue Ball pointer for this scope ---
658        cueBall = GetCueBall();
659        // We might allow some keys even if cue ball is gone (like F1/F2), but actions need it
660        // --- End Fix ---
661
662        // Check which player can interact via keyboard (Humans only)
663        bool canPlayerControl = ((currentPlayer == 1 && (currentGameState == PLAYER1_TURN || currentGameState == AIMING || currentGameState == BREAKING || currentGameState == BALL_IN_HAND_P1 || currentGameState == PRE_BREAK_PLACEMENT)) ||
664            (currentPlayer == 2 && !isPlayer2AI && (currentGameState == PLAYER2_TURN || currentGameState == AIMING || currentGameState == BREAKING || currentGameState == BALL_IN_HAND_P2 || currentGameState == PRE_BREAK_PLACEMENT)));
665
666        // --- F1 / F2 Keys (Always available) ---
667        if (wParam == VK_F2) {
668            HINSTANCE hInstance = (HINSTANCE)GetWindowLongPtr(hwnd, GWLP_HINSTANCE);
669            ResetGame(hInstance); // Call reset function
670            return 0; // Indicate key was processed
671        }
672        else if (wParam == VK_F1) {
673            MessageBox(hwnd,
674                L"Direct2D-based StickPool game made in C++ from scratch (2764+ lines of code)\n" // Update line count if needed
675                L"First successful Clone in C++ (no other sites or projects were there to glean from.) Made /w AI assist\n"
676                L"(others were in JS/ non-8-Ball in C# etc.) w/o OOP and Graphics Frameworks all in a Single file.\n"
677                L"Copyright (C) 2025 Evans Thorpemorton, Entisoft Solutions.\n"
678                L"Includes AI Difficulty Modes, Aim-Trajectory For Table Rails + Hard Angles TipShots. || F2=New Game",
679                L"About This Game", MB_OK | MB_ICONINFORMATION);
680            return 0; // Indicate key was processed
681        }
682
683        // Check for 'M' key (uppercase or lowercase)
684            // Toggle music with "M"
685        if (wParam == 'M' || wParam == 'm') {
686            //static bool isMusicPlaying = false;
687            if (isMusicPlaying) {
688                // Stop the music
689                StopMidi();
690                isMusicPlaying = false;
691            }
692            else {
693                // Build the MIDI file path
694                TCHAR midiPath[MAX_PATH];
695                GetModuleFileName(NULL, midiPath, MAX_PATH);
696                // Keep only the directory part
697                TCHAR* lastBackslash = _tcsrchr(midiPath, '\\');
698                if (lastBackslash != NULL) {
699                    *(lastBackslash + 1) = '\0';
700                }
701                // Append the MIDI filename
702                _tcscat_s(midiPath, MAX_PATH, TEXT("BSQ.MID")); // Adjust filename if needed
703
704                // Start playing MIDI
705                StartMidi(hwndMain, midiPath);
706                isMusicPlaying = true;
707            }
708        }
709
710
711        // --- Player Interaction Keys (Only if allowed) ---
712        if (canPlayerControl) {
713            // --- Get Shift Key State ---
714            bool shiftPressed = (GetKeyState(VK_SHIFT) & 0x8000) != 0;
715            float angleStep = shiftPressed ? 0.05f : 0.01f; // Base step / Faster step (Adjust as needed) // Multiplier was 5x
716            float powerStep = 0.2f; // Power step (Adjust as needed)
717
718            switch (wParam) {
719            case VK_LEFT: // Rotate Cue Stick Counter-Clockwise
720                if (currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING) {
721                    cueAngle -= angleStep;
722                    // Normalize angle (keep between 0 and 2*PI)
723                    if (cueAngle < 0) cueAngle += 2 * PI;
724                    // Ensure state shows aiming visuals if turn just started
725                    if (currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN) currentGameState = AIMING;
726                    isAiming = false; // Keyboard adjust doesn't use mouse aiming state
727                    isDraggingStick = false;
728                    keyboardAimingActive = true;
729                }
730                break;
731
732            case VK_RIGHT: // Rotate Cue Stick Clockwise
733                if (currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING) {
734                    cueAngle += angleStep;
735                    // Normalize angle (keep between 0 and 2*PI)
736                    if (cueAngle >= 2 * PI) cueAngle -= 2 * PI;
737                    // Ensure state shows aiming visuals if turn just started
738                    if (currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN) currentGameState = AIMING;
739                    isAiming = false;
740                    isDraggingStick = false;
741                    keyboardAimingActive = true;
742                }
743                break;
744
745            case VK_UP: // Decrease Shot Power
746                if (currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING) {
747                    shotPower -= powerStep;
748                    if (shotPower < 0.0f) shotPower = 0.0f;
749                    // Ensure state shows aiming visuals if turn just started
750                    if (currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN) currentGameState = AIMING;
751                    isAiming = true; // Keyboard adjust doesn't use mouse aiming state
752                    isDraggingStick = false;
753                    keyboardAimingActive = true;
754                }
755                break;
756
757            case VK_DOWN: // Increase Shot Power
758                if (currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING) {
759                    shotPower += powerStep;
760                    if (shotPower > MAX_SHOT_POWER) shotPower = MAX_SHOT_POWER;
761                    // Ensure state shows aiming visuals if turn just started
762                    if (currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN) currentGameState = AIMING;
763                    isAiming = true;
764                    isDraggingStick = false;
765                    keyboardAimingActive = true;
766                }
767                break;
768
769            case VK_SPACE: // Trigger Shot
770                if ((currentGameState == AIMING || currentGameState == BREAKING || currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN)
771                    && currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING)
772                {
773                    if (shotPower > 0.15f) { // Use same threshold as mouse
774                       // Reset foul flags BEFORE applying shot
775                        firstHitBallIdThisShot = -1;
776                        cueHitObjectBallThisShot = false;
777                        railHitAfterContact = false;
778
779                        // Play sound & Apply Shot
780                        std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("cue.wav")).detach();
781                        ApplyShot(shotPower, cueAngle, cueSpinX, cueSpinY);
782
783                        // Update State
784                        currentGameState = SHOT_IN_PROGRESS;
785                        foulCommitted = false;
786                        pocketedThisTurn.clear();
787                        shotPower = 0; // Reset power after shooting
788                        isAiming = false; isDraggingStick = false; // Reset aiming flags
789                        keyboardAimingActive = false;
790                    }
791                }
792                break;
793
794            case VK_ESCAPE: // Cancel Aim/Shot Setup
795                if ((currentGameState == AIMING || currentGameState == BREAKING) || shotPower > 0)
796                {
797                    shotPower = 0.0f;
798                    isAiming = false;
799                    isDraggingStick = false;
800                    keyboardAimingActive = false;
801                    // Revert to basic turn state if not breaking
802                    if (currentGameState != BREAKING) {
803                        currentGameState = (currentPlayer == 1) ? PLAYER1_TURN : PLAYER2_TURN;
804                    }
805                }
806                break;
807
808            case 'G': // Toggle Cheat Mode
809                cheatModeEnabled = !cheatModeEnabled;
810                if (cheatModeEnabled)
811                    MessageBeep(MB_ICONEXCLAMATION); // Play a beep when enabling
812                else
813                    MessageBeep(MB_OK); // Play a different beep when disabling
814                break;
815
816            default:
817                // Allow default processing for other keys if needed
818                // return DefWindowProc(hwnd, msg, wParam, lParam); // Usually not needed for WM_KEYDOWN
819                break;
820            } // End switch(wParam) for player controls
821            return 0; // Indicate player control key was processed
822        } // End if(canPlayerControl)
823    } // End scope for WM_KEYDOWN case
824    // If key wasn't F1/F2 and player couldn't control, maybe allow default processing?
825    // return DefWindowProc(hwnd, msg, wParam, lParam); // Or just return 0
826    return 0;
827
828    case WM_MOUSEMOVE: {
829        ptMouse.x = LOWORD(lParam);
830        ptMouse.y = HIWORD(lParam);
831
832        // --- NEW LOGIC: Handle Pocket Hover ---
833        if ((currentGameState == CHOOSING_POCKET_P1 && currentPlayer == 1) ||
834            (currentGameState == CHOOSING_POCKET_P2 && currentPlayer == 2 && !isPlayer2AI)) {
835            int oldHover = currentlyHoveredPocket;
836            currentlyHoveredPocket = -1; // Reset
837            for (int i = 0; i < 6; ++i) {
838                if (GetDistanceSq((float)ptMouse.x, (float)ptMouse.y, pocketPositions[i].x, pocketPositions[i].y) < HOLE_VISUAL_RADIUS * HOLE_VISUAL_RADIUS * 2.25f) {
839                    currentlyHoveredPocket = i;
840                    break;
841                }
842            }
843            if (oldHover != currentlyHoveredPocket) {
844                InvalidateRect(hwnd, NULL, FALSE);
845            }
846            // Do NOT return 0 here, allow normal mouse angle update to continue
847        }
848        // --- END NEW LOGIC ---
849
850
851        cueBall = GetCueBall(); // Declare and get cueBall pointer
852
853        if (isDraggingCueBall && cheatModeEnabled && draggingBallId != -1) {
854            Ball* ball = GetBallById(draggingBallId);
855            if (ball) {
856                ball->x = (float)ptMouse.x;
857                ball->y = (float)ptMouse.y;
858                ball->vx = ball->vy = 0.0f;
859            }
860            return 0;
861        }
862
863        if (!cueBall) return 0;
864
865        // Update Aiming Logic (Check player turn)
866        if (isDraggingCueBall &&
867            ((currentPlayer == 1 && currentGameState == BALL_IN_HAND_P1) ||
868                (!isPlayer2AI && currentPlayer == 2 && currentGameState == BALL_IN_HAND_P2) ||
869                currentGameState == PRE_BREAK_PLACEMENT))
870        {
871            bool behindHeadstring = (currentGameState == PRE_BREAK_PLACEMENT);
872            // Tentative position update
873            cueBall->x = (float)ptMouse.x;
874            cueBall->y = (float)ptMouse.y;
875            cueBall->vx = cueBall->vy = 0;
876        }
877        else if ((isAiming || isDraggingStick) &&
878            ((currentPlayer == 1 && (currentGameState == AIMING || currentGameState == BREAKING)) ||
879                (!isPlayer2AI && currentPlayer == 2 && (currentGameState == AIMING || currentGameState == BREAKING))))
880        {
881            //NEW2 MOUSEBOUND CODE = START
882                /*// Clamp mouse inside table bounds during aiming
883                if (ptMouse.x < TABLE_LEFT) ptMouse.x = TABLE_LEFT;
884            if (ptMouse.x > TABLE_RIGHT) ptMouse.x = TABLE_RIGHT;
885            if (ptMouse.y < TABLE_TOP) ptMouse.y = TABLE_TOP;
886            if (ptMouse.y > TABLE_BOTTOM) ptMouse.y = TABLE_BOTTOM;*/
887            //NEW2 MOUSEBOUND CODE = END
888            // Aiming drag updates angle and power
889            float dx = (float)ptMouse.x - cueBall->x;
890            float dy = (float)ptMouse.y - cueBall->y;
891            if (dx != 0 || dy != 0) cueAngle = atan2f(dy, dx);
892            //float pullDist = GetDistance((float)ptMouse.x, (float)ptMouse.y, aimStartPoint.x, aimStartPoint.y);
893            //shotPower = std::min(pullDist / 10.0f, MAX_SHOT_POWER);
894            if (!keyboardAimingActive) { // Only update shotPower if NOT keyboard aiming
895                float pullDist = GetDistance((float)ptMouse.x, (float)ptMouse.y, aimStartPoint.x, aimStartPoint.y);
896                shotPower = std::min(pullDist / 10.0f, MAX_SHOT_POWER);
897            }
898        }
899        else if (isSettingEnglish &&
900            ((currentPlayer == 1 && (currentGameState == PLAYER1_TURN || currentGameState == AIMING || currentGameState == BREAKING)) ||
901                (!isPlayer2AI && currentPlayer == 2 && (currentGameState == PLAYER2_TURN || currentGameState == AIMING || currentGameState == BREAKING))))
902        {
903            // Setting English
904            float dx = (float)ptMouse.x - spinIndicatorCenter.x;
905            float dy = (float)ptMouse.y - spinIndicatorCenter.y;
906            float dist = GetDistance(dx, dy, 0, 0);
907            if (dist > spinIndicatorRadius) { dx *= spinIndicatorRadius / dist; dy *= spinIndicatorRadius / dist; }
908            cueSpinX = dx / spinIndicatorRadius;
909            cueSpinY = dy / spinIndicatorRadius;
910        }
911        else {
912            //DISABLE PERM AIMING = START
913            /*// Update visual angle even when not aiming/dragging (Check player turn)
914            bool canUpdateVisualAngle = ((currentPlayer == 1 && (currentGameState == PLAYER1_TURN || currentGameState == BALL_IN_HAND_P1)) ||
915                (currentPlayer == 2 && !isPlayer2AI && (currentGameState == PLAYER2_TURN || currentGameState == BALL_IN_HAND_P2)) ||
916                currentGameState == PRE_BREAK_PLACEMENT || currentGameState == BREAKING || currentGameState == AIMING);
917
918            if (canUpdateVisualAngle && !isDraggingCueBall && !isAiming && !isDraggingStick && !keyboardAimingActive) // NEW: Prevent mouse override if keyboard aiming
919            {
920                // NEW MOUSEBOUND CODE = START
921                    // Only update cue angle if mouse is inside the playable table area
922                if (ptMouse.x >= TABLE_LEFT && ptMouse.x <= TABLE_RIGHT &&
923                    ptMouse.y >= TABLE_TOP && ptMouse.y <= TABLE_BOTTOM)
924                {
925                    // NEW MOUSEBOUND CODE = END
926                    Ball* cb = cueBall; // Use function-scope cueBall // Already got cueBall above
927                    if (cb) {
928                        float dx = (float)ptMouse.x - cb->x;
929                        float dy = (float)ptMouse.y - cb->y;
930                        if (dx != 0 || dy != 0) cueAngle = atan2f(dy, dx);
931                    }
932                } //NEW MOUSEBOUND CODE LINE = DISABLE
933            }*/
934            //DISABLE PERM AIMING = END
935        }
936        return 0;
937    } // End WM_MOUSEMOVE
938
939    case WM_LBUTTONDOWN: {
940        ptMouse.x = LOWORD(lParam);
941        ptMouse.y = HIWORD(lParam);
942
943        // --- NEW LOGIC: Handle Pocket Selection First ---
944        if ((currentGameState == CHOOSING_POCKET_P1 && currentPlayer == 1) ||
945            (currentGameState == CHOOSING_POCKET_P2 && currentPlayer == 2 && !isPlayer2AI)) {
946
947            int clickedPocketIndex = -1;
948            for (int i = 0; i < 6; ++i) {
949                if (GetDistanceSq((float)ptMouse.x, (float)ptMouse.y, pocketPositions[i].x, pocketPositions[i].y) < HOLE_VISUAL_RADIUS * HOLE_VISUAL_RADIUS * 2.25f) {
950                    clickedPocketIndex = i;
951                    break;
952                }
953            }
954
955            if (clickedPocketIndex != -1) { // Player clicked on a pocket to select it
956                if (currentPlayer == 1) calledPocketP1 = clickedPocketIndex;
957                else calledPocketP2 = clickedPocketIndex;
958                // After selecting, transition to the normal aiming turn state
959                currentGameState = (currentPlayer == 1) ? PLAYER1_TURN : PLAYER2_TURN;
960                pocketCallMessage = L""; // Clear the message
961                InvalidateRect(hwnd, NULL, FALSE);
962                return 0; // Consume the click
963            }
964            // If they click anywhere else, do nothing and let them re-choose
965            return 0;
966        }
967        // --- END NEW LOGIC ---
968
969
970        if (cheatModeEnabled) {
971            // Allow dragging any ball freely
972            for (Ball& ball : balls) {
973                float distSq = GetDistanceSq(ball.x, ball.y, (float)ptMouse.x, (float)ptMouse.y);
974                if (distSq <= BALL_RADIUS * BALL_RADIUS * 4) { // Click near ball
975                    isDraggingCueBall = true;
976                    draggingBallId = ball.id;
977                    if (ball.id == 0) {
978                        // If dragging cue ball manually, ensure we stay in Ball-In-Hand state
979                        if (currentPlayer == 1)
980                            currentGameState = BALL_IN_HAND_P1;
981                        else if (currentPlayer == 2 && !isPlayer2AI)
982                            currentGameState = BALL_IN_HAND_P2;
983                    }
984                    return 0;
985                }
986            }
987        }
988
989        Ball* cueBall = GetCueBall(); // Declare and get cueBall pointer            
990
991        // Check which player is allowed to interact via mouse click
992        bool canPlayerClickInteract = ((currentPlayer == 1) || (currentPlayer == 2 && !isPlayer2AI));
993        // Define states where interaction is generally allowed
994        bool canInteractState = (currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN ||
995            currentGameState == AIMING || currentGameState == BREAKING ||
996            currentGameState == BALL_IN_HAND_P1 || currentGameState == BALL_IN_HAND_P2 ||
997            currentGameState == PRE_BREAK_PLACEMENT);
998
999        // Check Spin Indicator first (Allow if player's turn/aim phase)
1000        if (canPlayerClickInteract && canInteractState) {
1001            float spinDistSq = GetDistanceSq((float)ptMouse.x, (float)ptMouse.y, spinIndicatorCenter.x, spinIndicatorCenter.y);
1002            if (spinDistSq < spinIndicatorRadius * spinIndicatorRadius * 1.2f) {
1003                isSettingEnglish = true;
1004                float dx = (float)ptMouse.x - spinIndicatorCenter.x;
1005                float dy = (float)ptMouse.y - spinIndicatorCenter.y;
1006                float dist = GetDistance(dx, dy, 0, 0);
1007                if (dist > spinIndicatorRadius) { dx *= spinIndicatorRadius / dist; dy *= spinIndicatorRadius / dist; }
1008                cueSpinX = dx / spinIndicatorRadius;
1009                cueSpinY = dy / spinIndicatorRadius;
1010                isAiming = false; isDraggingStick = false; isDraggingCueBall = false;
1011                return 0;
1012            }
1013        }
1014
1015        if (!cueBall) return 0;
1016
1017        // Check Ball-in-Hand placement/drag
1018        bool isPlacingBall = (currentGameState == BALL_IN_HAND_P1 || currentGameState == BALL_IN_HAND_P2 || currentGameState == PRE_BREAK_PLACEMENT);
1019        bool isPlayerAllowedToPlace = (isPlacingBall &&
1020            ((currentPlayer == 1 && currentGameState == BALL_IN_HAND_P1) ||
1021                (currentPlayer == 2 && !isPlayer2AI && currentGameState == BALL_IN_HAND_P2) ||
1022                (currentGameState == PRE_BREAK_PLACEMENT))); // Allow current player in break setup
1023
1024        if (isPlayerAllowedToPlace) {
1025            float distSq = GetDistanceSq(cueBall->x, cueBall->y, (float)ptMouse.x, (float)ptMouse.y);
1026            if (distSq < BALL_RADIUS * BALL_RADIUS * 9.0f) {
1027                isDraggingCueBall = true;
1028                isAiming = false; isDraggingStick = false;
1029            }
1030            else {
1031                bool behindHeadstring = (currentGameState == PRE_BREAK_PLACEMENT);
1032                if (IsValidCueBallPosition((float)ptMouse.x, (float)ptMouse.y, behindHeadstring)) {
1033                    cueBall->x = (float)ptMouse.x; cueBall->y = (float)ptMouse.y;
1034                    cueBall->vx = 0; cueBall->vy = 0;
1035                    isDraggingCueBall = false;
1036                    // Transition state
1037                    if (currentGameState == PRE_BREAK_PLACEMENT) currentGameState = BREAKING;
1038                    else if (currentGameState == BALL_IN_HAND_P1) currentGameState = PLAYER1_TURN;
1039                    else if (currentGameState == BALL_IN_HAND_P2) currentGameState = PLAYER2_TURN;
1040                    cueAngle = 0.0f;
1041                }
1042            }
1043            return 0;
1044        }
1045
1046        // Check for starting Aim (Cue Ball OR Stick)
1047        bool canAim = ((currentPlayer == 1 && (currentGameState == PLAYER1_TURN || currentGameState == BREAKING)) ||
1048            (currentPlayer == 2 && !isPlayer2AI && (currentGameState == PLAYER2_TURN || currentGameState == BREAKING)));
1049
1050        if (canAim) {
1051            const float stickDrawLength = 150.0f * 1.4f;
1052            float currentStickAngle = cueAngle + PI;
1053            D2D1_POINT_2F currentStickEnd = D2D1::Point2F(cueBall->x + cosf(currentStickAngle) * stickDrawLength, cueBall->y + sinf(currentStickAngle) * stickDrawLength);
1054            D2D1_POINT_2F currentStickTip = D2D1::Point2F(cueBall->x + cosf(currentStickAngle) * 5.0f, cueBall->y + sinf(currentStickAngle) * 5.0f);
1055            float distToStickSq = PointToLineSegmentDistanceSq(D2D1::Point2F((float)ptMouse.x, (float)ptMouse.y), currentStickTip, currentStickEnd);
1056            float stickClickThresholdSq = 36.0f;
1057            float distToCueBallSq = GetDistanceSq(cueBall->x, cueBall->y, (float)ptMouse.x, (float)ptMouse.y);
1058            float cueBallClickRadiusSq = BALL_RADIUS * BALL_RADIUS * 25;
1059
1060            bool clickedStick = (distToStickSq < stickClickThresholdSq);
1061            bool clickedCueArea = (distToCueBallSq < cueBallClickRadiusSq);
1062
1063            if (clickedStick || clickedCueArea) {
1064                isDraggingStick = clickedStick && !clickedCueArea;
1065                isAiming = clickedCueArea;
1066                aimStartPoint = D2D1::Point2F((float)ptMouse.x, (float)ptMouse.y);
1067                shotPower = 0;
1068                float dx = (float)ptMouse.x - cueBall->x;
1069                float dy = (float)ptMouse.y - cueBall->y;
1070                if (dx != 0 || dy != 0) cueAngle = atan2f(dy, dx);
1071                if (currentGameState != BREAKING) currentGameState = AIMING;
1072            }
1073        }
1074        return 0;
1075    } // End WM_LBUTTONDOWN
1076
1077
1078    case WM_LBUTTONUP: {
1079        if (cheatModeEnabled && isDraggingCueBall) {
1080            isDraggingCueBall = false;
1081            if (draggingBallId == 0) {
1082                // After dropping CueBall, stay Ball-In-Hand mode if needed
1083                if (currentPlayer == 1)
1084                    currentGameState = BALL_IN_HAND_P1;
1085                else if (currentPlayer == 2 && !isPlayer2AI)
1086                    currentGameState = BALL_IN_HAND_P2;
1087            }
1088            draggingBallId = -1;
1089            return 0;
1090        }
1091
1092        ptMouse.x = LOWORD(lParam);
1093        ptMouse.y = HIWORD(lParam);
1094
1095        Ball* cueBall = GetCueBall(); // Get cueBall pointer
1096
1097        // Check for releasing aim drag (Stick OR Cue Ball)
1098        if ((isAiming || isDraggingStick) &&
1099            ((currentPlayer == 1 && (currentGameState == AIMING || currentGameState == BREAKING)) ||
1100                (!isPlayer2AI && currentPlayer == 2 && (currentGameState == AIMING || currentGameState == BREAKING))))
1101        {
1102            bool wasAiming = isAiming;
1103            bool wasDraggingStick = isDraggingStick;
1104            isAiming = false; isDraggingStick = false;
1105
1106            if (shotPower > 0.15f) { // Check power threshold
1107                if (currentGameState != AI_THINKING) {
1108                    firstHitBallIdThisShot = -1; cueHitObjectBallThisShot = false; railHitAfterContact = false; // Reset foul flags
1109                    std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("cue.wav")).detach();
1110                    ApplyShot(shotPower, cueAngle, cueSpinX, cueSpinY);
1111                    currentGameState = SHOT_IN_PROGRESS;
1112                    foulCommitted = false; pocketedThisTurn.clear();
1113                }
1114            }
1115            else if (currentGameState != AI_THINKING) { // Revert state if power too low
1116                if (currentGameState == BREAKING) { /* Still breaking */ }
1117                else {
1118                    currentGameState = (currentPlayer == 1) ? PLAYER1_TURN : PLAYER2_TURN;
1119                    if (currentPlayer == 2 && isPlayer2AI) aiTurnPending = false;
1120                }
1121            }
1122            shotPower = 0; // Reset power indicator regardless
1123        }
1124
1125        // Handle releasing cue ball drag (placement)
1126        if (isDraggingCueBall) {
1127            isDraggingCueBall = false;
1128            // Check player allowed to place
1129            bool isPlacingState = (currentGameState == BALL_IN_HAND_P1 || currentGameState == BALL_IN_HAND_P2 || currentGameState == PRE_BREAK_PLACEMENT);
1130            bool isPlayerAllowed = (isPlacingState &&
1131                ((currentPlayer == 1 && currentGameState == BALL_IN_HAND_P1) ||
1132                    (currentPlayer == 2 && !isPlayer2AI && currentGameState == BALL_IN_HAND_P2) ||
1133                    (currentGameState == PRE_BREAK_PLACEMENT)));
1134
1135            if (isPlayerAllowed && cueBall) {
1136                bool behindHeadstring = (currentGameState == PRE_BREAK_PLACEMENT);
1137                if (IsValidCueBallPosition(cueBall->x, cueBall->y, behindHeadstring)) {
1138                    // Finalize position already set by mouse move
1139                    // Transition state
1140                    if (currentGameState == PRE_BREAK_PLACEMENT) currentGameState = BREAKING;
1141                    else if (currentGameState == BALL_IN_HAND_P1) currentGameState = PLAYER1_TURN;
1142                    else if (currentGameState == BALL_IN_HAND_P2) currentGameState = PLAYER2_TURN;
1143                    cueAngle = 0.0f;
1144                }
1145                else { /* Stay in BALL_IN_HAND state if final pos invalid */ }
1146            }
1147        }
1148
1149        // Handle releasing english setting
1150        if (isSettingEnglish) {
1151            isSettingEnglish = false;
1152        }
1153        return 0;
1154    } // End WM_LBUTTONUP
1155
1156    case WM_DESTROY:
1157        isMusicPlaying = false;
1158        if (midiDeviceID != 0) {
1159            mciSendCommand(midiDeviceID, MCI_CLOSE, 0, NULL);
1160            midiDeviceID = 0;
1161            SaveSettings(); // Save settings on exit
1162        }
1163        PostQuitMessage(0);
1164        return 0;
1165
1166    default:
1167        return DefWindowProc(hwnd, msg, wParam, lParam);
1168    }
1169    return 0;
1170}
1171
1172// --- Direct2D Resource Management ---
1173
1174HRESULT CreateDeviceResources() {
1175    HRESULT hr = S_OK;
1176
1177    // Create Direct2D Factory
1178    if (!pFactory) {
1179        hr = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, &pFactory);
1180        if (FAILED(hr)) return hr;
1181    }
1182
1183    // Create DirectWrite Factory
1184    if (!pDWriteFactory) {
1185        hr = DWriteCreateFactory(
1186            DWRITE_FACTORY_TYPE_SHARED,
1187            __uuidof(IDWriteFactory),
1188            reinterpret_cast<IUnknown**>(&pDWriteFactory)
1189        );
1190        if (FAILED(hr)) return hr;
1191    }
1192
1193    // Create Text Formats
1194    if (!pTextFormat && pDWriteFactory) {
1195        hr = pDWriteFactory->CreateTextFormat(
1196            L"Segoe UI", NULL, DWRITE_FONT_WEIGHT_NORMAL, DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL,
1197            16.0f, L"en-us", &pTextFormat
1198        );
1199        if (FAILED(hr)) return hr;
1200        // Center align text
1201        pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
1202        pTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
1203    }
1204    if (!pLargeTextFormat && pDWriteFactory) {
1205        hr = pDWriteFactory->CreateTextFormat(
1206            L"Impact", NULL, DWRITE_FONT_WEIGHT_BOLD, DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL,
1207            48.0f, L"en-us", &pLargeTextFormat
1208        );
1209        if (FAILED(hr)) return hr;
1210        pLargeTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING); // Align left
1211        pLargeTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
1212    }
1213
1214
1215    // Create Render Target (needs valid hwnd)
1216    if (!pRenderTarget && hwndMain) {
1217        RECT rc;
1218        GetClientRect(hwndMain, &rc);
1219        D2D1_SIZE_U size = D2D1::SizeU(rc.right - rc.left, rc.bottom - rc.top);
1220
1221        hr = pFactory->CreateHwndRenderTarget(
1222            D2D1::RenderTargetProperties(),
1223            D2D1::HwndRenderTargetProperties(hwndMain, size),
1224            &pRenderTarget
1225        );
1226        if (FAILED(hr)) {
1227            // If failed, release factories if they were created in this call
1228            SafeRelease(&pTextFormat);
1229            SafeRelease(&pLargeTextFormat);
1230            SafeRelease(&pDWriteFactory);
1231            SafeRelease(&pFactory);
1232            pRenderTarget = nullptr; // Ensure it's null on failure
1233            return hr;
1234        }
1235    }
1236
1237    return hr;
1238}
1239
1240void DiscardDeviceResources() {
1241    SafeRelease(&pRenderTarget);
1242    SafeRelease(&pTextFormat);
1243    SafeRelease(&pLargeTextFormat);
1244    SafeRelease(&pDWriteFactory);
1245    // Keep pFactory until application exit? Or release here too? Let's release.
1246    SafeRelease(&pFactory);
1247}
1248
1249void OnResize(UINT width, UINT height) {
1250    if (pRenderTarget) {
1251        D2D1_SIZE_U size = D2D1::SizeU(width, height);
1252        pRenderTarget->Resize(size); // Ignore HRESULT for simplicity here
1253    }
1254}
1255
1256// --- Game Initialization ---
1257void InitGame() {
1258    srand((unsigned int)time(NULL)); // Seed random number generator
1259    isOpeningBreakShot = true; // This is the start of a new game, so the next shot is an opening break.
1260    aiPlannedShotDetails.isValid = false; // Reset AI planned shot
1261    aiIsDisplayingAim = false;
1262    aiAimDisplayFramesLeft = 0;
1263    // ... (rest of InitGame())
1264
1265    // --- Ensure pocketed list is clear from the absolute start ---
1266    pocketedThisTurn.clear();
1267
1268    balls.clear(); // Clear existing balls
1269
1270    // Reset Player Info (Names should be set by Dialog/wWinMain/ResetGame)
1271    player1Info.assignedType = BallType::NONE;
1272    player1Info.ballsPocketedCount = 0;
1273    // Player 1 Name usually remains "Player 1"
1274    player2Info.assignedType = BallType::NONE;
1275    player2Info.ballsPocketedCount = 0;
1276    // Player 2 Name is set based on gameMode in ShowNewGameDialog
1277
1278    // Create Cue Ball (ID 0)
1279    // Initial position will be set during PRE_BREAK_PLACEMENT state
1280    balls.push_back({ 0, BallType::CUE_BALL, TABLE_LEFT + TABLE_WIDTH * 0.15f, RACK_POS_Y, 0, 0, CUE_BALL_COLOR, false });
1281
1282    // --- Create Object Balls (Temporary List) ---
1283    std::vector<Ball> objectBalls;
1284    // Solids (1-7, Yellow)
1285    for (int i = 1; i <= 7; ++i) {
1286        objectBalls.push_back({ i, BallType::SOLID, 0, 0, 0, 0, SOLID_COLOR, false });
1287    }
1288    // Stripes (9-15, Red)
1289    for (int i = 9; i <= 15; ++i) {
1290        objectBalls.push_back({ i, BallType::STRIPE, 0, 0, 0, 0, STRIPE_COLOR, false });
1291    }
1292    // 8-Ball (ID 8) - Add it to the list to be placed
1293    objectBalls.push_back({ 8, BallType::EIGHT_BALL, 0, 0, 0, 0, EIGHT_BALL_COLOR, false });
1294
1295
1296    // --- Racking Logic (Improved) ---
1297    float spacingX = BALL_RADIUS * 2.0f * 0.866f; // cos(30) for horizontal spacing
1298    float spacingY = BALL_RADIUS * 2.0f * 1.0f;   // Vertical spacing
1299
1300    // Define rack positions (0-14 indices corresponding to triangle spots)
1301    D2D1_POINT_2F rackPositions[15];
1302    int rackIndex = 0;
1303    for (int row = 0; row < 5; ++row) {
1304        for (int col = 0; col <= row; ++col) {
1305            if (rackIndex >= 15) break;
1306            float x = RACK_POS_X + row * spacingX;
1307            float y = RACK_POS_Y + (col - row / 2.0f) * spacingY;
1308            rackPositions[rackIndex++] = D2D1::Point2F(x, y);
1309        }
1310    }
1311
1312    // Separate 8-ball
1313    Ball eightBall;
1314    std::vector<Ball> otherBalls; // Solids and Stripes
1315    bool eightBallFound = false;
1316    for (const auto& ball : objectBalls) {
1317        if (ball.id == 8) {
1318            eightBall = ball;
1319            eightBallFound = true;
1320        }
1321        else {
1322            otherBalls.push_back(ball);
1323        }
1324    }
1325    // Ensure 8 ball was actually created (should always be true)
1326    if (!eightBallFound) {
1327        // Handle error - perhaps recreate it? For now, proceed.
1328        eightBall = { 8, BallType::EIGHT_BALL, 0, 0, 0, 0, EIGHT_BALL_COLOR, false };
1329    }
1330
1331
1332    // Shuffle the other 14 balls
1333    // Use std::shuffle if available (C++11 and later) for better randomness
1334    // std::random_device rd;
1335    // std::mt19937 g(rd());
1336    // std::shuffle(otherBalls.begin(), otherBalls.end(), g);
1337    std::random_shuffle(otherBalls.begin(), otherBalls.end()); // Using deprecated for now
1338
1339    // --- Place balls into the main 'balls' vector in rack order ---
1340    // Important: Add the cue ball (already created) first.
1341    // (Cue ball added at the start of the function now)
1342
1343    // 1. Place the 8-ball in its fixed position (index 4 for the 3rd row center)
1344    int eightBallRackIndex = 4;
1345    eightBall.x = rackPositions[eightBallRackIndex].x;
1346    eightBall.y = rackPositions[eightBallRackIndex].y;
1347    eightBall.vx = 0;
1348    eightBall.vy = 0;
1349    eightBall.isPocketed = false;
1350    balls.push_back(eightBall); // Add 8 ball to the main vector
1351
1352    // 2. Place the shuffled Solids and Stripes in the remaining spots
1353    size_t otherBallIdx = 0;
1354    //int otherBallIdx = 0;
1355    for (int i = 0; i < 15; ++i) {
1356        if (i == eightBallRackIndex) continue; // Skip the 8-ball spot
1357
1358        if (otherBallIdx < otherBalls.size()) {
1359            Ball& ballToPlace = otherBalls[otherBallIdx++];
1360            ballToPlace.x = rackPositions[i].x;
1361            ballToPlace.y = rackPositions[i].y;
1362            ballToPlace.vx = 0;
1363            ballToPlace.vy = 0;
1364            ballToPlace.isPocketed = false;
1365            balls.push_back(ballToPlace); // Add to the main game vector
1366        }
1367    }
1368    // --- End Racking Logic ---
1369
1370
1371    // --- Determine Who Breaks and Initial State ---
1372    if (isPlayer2AI) {
1373        /*// AI Mode: Randomly decide who breaks
1374        if ((rand() % 2) == 0) {
1375            // AI (Player 2) breaks
1376            currentPlayer = 2;
1377            currentGameState = PRE_BREAK_PLACEMENT; // AI needs to place ball first
1378            aiTurnPending = true; // Trigger AI logic
1379        }
1380        else {
1381            // Player 1 (Human) breaks
1382            currentPlayer = 1;
1383            currentGameState = PRE_BREAK_PLACEMENT; // Human places cue ball
1384            aiTurnPending = false;*/
1385        switch (openingBreakMode) {
1386        case CPU_BREAK:
1387            currentPlayer = 2; // AI breaks
1388            currentGameState = PRE_BREAK_PLACEMENT;
1389            aiTurnPending = true;
1390            break;
1391        case P1_BREAK:
1392            currentPlayer = 1; // Player 1 breaks
1393            currentGameState = PRE_BREAK_PLACEMENT;
1394            aiTurnPending = false;
1395            break;
1396        case FLIP_COIN_BREAK:
1397            if ((rand() % 2) == 0) { // 0 for AI, 1 for Player 1
1398                currentPlayer = 2; // AI breaks
1399                currentGameState = PRE_BREAK_PLACEMENT;
1400                aiTurnPending = true;
1401            }
1402            else {
1403                currentPlayer = 1; // Player 1 breaks
1404                currentGameState = PRE_BREAK_PLACEMENT;
1405                aiTurnPending = false;
1406            }
1407            break;
1408        default: // Fallback to CPU break
1409            currentPlayer = 2;
1410            currentGameState = PRE_BREAK_PLACEMENT;
1411            aiTurnPending = true;
1412            break;
1413        }
1414    }
1415    else {
1416        // Human vs Human, Player 1 always breaks (or could add a flip coin for HvsH too if desired)
1417        currentPlayer = 1;
1418        currentGameState = PRE_BREAK_PLACEMENT;
1419        aiTurnPending = false; // No AI involved
1420    }
1421
1422    // Reset other relevant game state variables
1423    foulCommitted = false;
1424    gameOverMessage = L"";
1425    firstBallPocketedAfterBreak = false;
1426    // pocketedThisTurn cleared at start
1427    // Reset shot parameters and input flags
1428    shotPower = 0.0f;
1429    cueSpinX = 0.0f;
1430    cueSpinY = 0.0f;
1431    isAiming = false;
1432    isDraggingCueBall = false;
1433    isSettingEnglish = false;
1434    cueAngle = 0.0f; // Reset aim angle
1435}
1436
1437
1438// --- Game Loop ---
1439void GameUpdate() {
1440    if (currentGameState == SHOT_IN_PROGRESS) {
1441        UpdatePhysics();
1442        CheckCollisions();
1443
1444        if (AreBallsMoving()) {
1445            // When all balls stop, clear aiming flags
1446            isAiming = false;
1447            aiIsDisplayingAim = false;
1448            //ProcessShotResults();
1449        }
1450
1451        bool pocketed = CheckPockets(); // Store if any ball was pocketed
1452
1453        // --- Update pocket flash animation timer ---
1454        if (pocketFlashTimer > 0.0f) {
1455            pocketFlashTimer -= 0.02f;
1456            if (pocketFlashTimer < 0.0f) pocketFlashTimer = 0.0f;
1457        }
1458
1459        if (!AreBallsMoving()) {
1460            ProcessShotResults(); // Determine next state based on what happened
1461        }
1462    }
1463
1464    // --- Check if AI needs to act ---
1465    else if (isPlayer2AI && currentPlayer == 2 && !AreBallsMoving()) {
1466        if (aiIsDisplayingAim) { // AI has decided a shot and is displaying aim
1467            aiAimDisplayFramesLeft--;
1468            if (aiAimDisplayFramesLeft <= 0) {
1469                aiIsDisplayingAim = false; // Done displaying
1470                if (aiPlannedShotDetails.isValid) {
1471                    // Execute the planned shot
1472                    firstHitBallIdThisShot = -1;
1473                    cueHitObjectBallThisShot = false;
1474                    railHitAfterContact = false;
1475                    std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("cue.wav")).detach();
1476                    ApplyShot(aiPlannedShotDetails.power, aiPlannedShotDetails.angle, aiPlannedShotDetails.spinX, aiPlannedShotDetails.spinY);
1477                    aiPlannedShotDetails.isValid = false; // Clear the planned shot
1478                }
1479                currentGameState = SHOT_IN_PROGRESS;
1480                foulCommitted = false;
1481                pocketedThisTurn.clear();
1482            }
1483            // Else, continue displaying aim
1484        }
1485        else if (aiTurnPending) { // AI needs to start its decision process
1486            // Valid states for AI to start thinking
1487            /*/if (currentGameState == PRE_BREAK_PLACEMENT && isOpeningBreakShot) {*/
1488            //newcode 1 commented out
1489            /*if (isOpeningBreakShot && currentGameState == PRE_BREAK_PLACEMENT && currentPlayer == 2 && isPlayer2AI) {
1490                // Handle the break shot
1491                AIBreakShot();
1492            }*/ //new code 1 end  
1493            /*else if (currentGameState == PRE_BREAK_PLACEMENT || currentGameState == BREAKING ||
1494                currentGameState == PLAYER2_TURN || currentGameState == BALL_IN_HAND_P2) {*/
1495
1496                // aiTurnPending might be consumed by AIBreakShot or remain for next cycle if needed
1497        /* } //new code 2 commented out
1498        else if (currentGameState == BALL_IN_HAND_P2 && currentPlayer == 2 && isPlayer2AI) {
1499            AIPlaceCueBall(); // AI places the ball first
1500            // After placement, AI needs to decide its shot.
1501            // Transition to a state where AIMakeDecision will be called for shot selection.
1502            currentGameState = PLAYER2_TURN; // Or a specific AI_AIMING_AFTER_PLACEMENT state
1503                                             // aiTurnPending remains true to trigger AIMakeDecision next.
1504        }
1505        else if (currentGameState == PLAYER2_TURN && currentPlayer == 2 && isPlayer2AI) {
1506            // This is for a normal turn (not break, not immediately after ball-in-hand placement)
1507
1508                currentGameState = AI_THINKING; // Set state to indicate AI is processing
1509                aiTurnPending = false;         // Consume the pending turn flag
1510                AIMakeDecision();              // For normal shots (non-break)
1511            }
1512            else {
1513                // Not a state where AI should act
1514                aiTurnPending = false;
1515            }*/
1516            // 2b) AI is ready to think (pending flag)
1517            // **1) Ball-in-Hand** let AI place the cue ball first
1518            if (currentGameState == BALL_IN_HAND_P2) {
1519                // Step 1: AI places the cue ball.
1520                AIPlaceCueBall();
1521                // Step 2: Transition to thinking state for shot decision.
1522                currentGameState = AI_THINKING; //newcode5
1523                // Step 3: Consume the pending flag for the placement phase.
1524                //         AIMakeDecision will handle shot planning now.
1525                aiTurnPending = false; //newcode5
1526                // Step 4: AI immediately decides the shot from the new position.
1527                AIMakeDecision(); //newcode5
1528            }
1529            // **2) Opening break** special break shot logic
1530            else if (isOpeningBreakShot && currentGameState == PRE_BREAK_PLACEMENT) {
1531                AIBreakShot();
1532            }
1533            else if (currentGameState == PLAYER2_TURN || currentGameState == BREAKING) { //newcode5
1534                // General turn for AI to think (not ball-in-hand, not initial break placement)
1535                currentGameState = AI_THINKING; //newcode5
1536                aiTurnPending = false; // Consume the flag //newcode5
1537                AIMakeDecision(); //newcode5
1538            }
1539            // **3) Otherwise** normal shot planning
1540            /*else { //orig uncommented oldcode5
1541                currentGameState = AI_THINKING;
1542                aiTurnPending = false;
1543                AIMakeDecision();
1544            }*/
1545        }
1546
1547        //} //bracefix
1548        // If current state is AI_THINKING but not displaying aim, then AI decision has already been made
1549    }
1550}
1551
1552// --- Physics and Collision ---
1553void UpdatePhysics() {
1554    for (size_t i = 0; i < balls.size(); ++i) {
1555        Ball& b = balls[i];
1556        if (!b.isPocketed) {
1557            b.x += b.vx;
1558            b.y += b.vy;
1559
1560            // Apply friction
1561            b.vx *= FRICTION;
1562            b.vy *= FRICTION;
1563
1564            // Stop balls if velocity is very low
1565            if (GetDistanceSq(b.vx, b.vy, 0, 0) < MIN_VELOCITY_SQ) {
1566                b.vx = 0;
1567                b.vy = 0;
1568            }
1569        }
1570    }
1571}
1572
1573void CheckCollisions() {
1574    float left = TABLE_LEFT;
1575    float right = TABLE_RIGHT;
1576    float top = TABLE_TOP;
1577    float bottom = TABLE_BOTTOM;
1578    const float pocketMouthCheckRadiusSq = (POCKET_RADIUS + BALL_RADIUS) * (POCKET_RADIUS + BALL_RADIUS) * 1.1f;
1579
1580    // --- Reset Per-Frame Sound Flags ---
1581    bool playedWallSoundThisFrame = false;
1582    bool playedCollideSoundThisFrame = false;
1583    // ---
1584
1585    for (size_t i = 0; i < balls.size(); ++i) {
1586        Ball& b1 = balls[i];
1587        if (b1.isPocketed) continue;
1588
1589        bool nearPocket[6];
1590        for (int p = 0; p < 6; ++p) {
1591            nearPocket[p] = GetDistanceSq(b1.x, b1.y, pocketPositions[p].x, pocketPositions[p].y) < pocketMouthCheckRadiusSq;
1592        }
1593        bool nearTopLeftPocket = nearPocket[0];
1594        bool nearTopMidPocket = nearPocket[1];
1595        bool nearTopRightPocket = nearPocket[2];
1596        bool nearBottomLeftPocket = nearPocket[3];
1597        bool nearBottomMidPocket = nearPocket[4];
1598        bool nearBottomRightPocket = nearPocket[5];
1599
1600        bool collidedWallThisBall = false;
1601
1602        // --- Ball-Wall Collisions ---
1603        // (Check logic unchanged, added sound calls and railHitAfterContact update)
1604        // Left Wall
1605        if (b1.x - BALL_RADIUS < left) {
1606            if (!nearTopLeftPocket && !nearBottomLeftPocket) {
1607                b1.x = left + BALL_RADIUS; b1.vx *= -1.0f; collidedWallThisBall = true;
1608                if (!playedWallSoundThisFrame) {
1609                    std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("wall.wav")).detach();
1610                    playedWallSoundThisFrame = true;
1611                }
1612                if (cueHitObjectBallThisShot) railHitAfterContact = true; // Track rail hit after contact
1613            }
1614        }
1615        // Right Wall
1616        if (b1.x + BALL_RADIUS > right) {
1617            if (!nearTopRightPocket && !nearBottomRightPocket) {
1618                b1.x = right - BALL_RADIUS; b1.vx *= -1.0f; collidedWallThisBall = true;
1619                if (!playedWallSoundThisFrame) {
1620                    std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("wall.wav")).detach();
1621                    playedWallSoundThisFrame = true;
1622                }
1623                if (cueHitObjectBallThisShot) railHitAfterContact = true; // Track rail hit after contact
1624            }
1625        }
1626        // Top Wall
1627        if (b1.y - BALL_RADIUS < top) {
1628            if (!nearTopLeftPocket && !nearTopMidPocket && !nearTopRightPocket) {
1629                b1.y = top + BALL_RADIUS; b1.vy *= -1.0f; collidedWallThisBall = true;
1630                if (!playedWallSoundThisFrame) {
1631                    std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("wall.wav")).detach();
1632                    playedWallSoundThisFrame = true;
1633                }
1634                if (cueHitObjectBallThisShot) railHitAfterContact = true; // Track rail hit after contact
1635            }
1636        }
1637        // Bottom Wall
1638        if (b1.y + BALL_RADIUS > bottom) {
1639            if (!nearBottomLeftPocket && !nearBottomMidPocket && !nearBottomRightPocket) {
1640                b1.y = bottom - BALL_RADIUS; b1.vy *= -1.0f; collidedWallThisBall = true;
1641                if (!playedWallSoundThisFrame) {
1642                    std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("wall.wav")).detach();
1643                    playedWallSoundThisFrame = true;
1644                }
1645                if (cueHitObjectBallThisShot) railHitAfterContact = true; // Track rail hit after contact
1646            }
1647        }
1648
1649        // Spin effect (Unchanged)
1650        if (collidedWallThisBall) {
1651            if (b1.x <= left + BALL_RADIUS || b1.x >= right - BALL_RADIUS) { b1.vy += cueSpinX * b1.vx * 0.05f; }
1652            if (b1.y <= top + BALL_RADIUS || b1.y >= bottom - BALL_RADIUS) { b1.vx -= cueSpinY * b1.vy * 0.05f; }
1653            cueSpinX *= 0.7f; cueSpinY *= 0.7f;
1654        }
1655
1656
1657        // --- Ball-Ball Collisions ---
1658        for (size_t j = i + 1; j < balls.size(); ++j) {
1659            Ball& b2 = balls[j];
1660            if (b2.isPocketed) continue;
1661
1662            float dx = b2.x - b1.x; float dy = b2.y - b1.y;
1663            float distSq = dx * dx + dy * dy;
1664            float minDist = BALL_RADIUS * 2.0f;
1665
1666            if (distSq > 1e-6 && distSq < minDist * minDist) {
1667                float dist = sqrtf(distSq);
1668                float overlap = minDist - dist;
1669                float nx = dx / dist; float ny = dy / dist;
1670
1671                // Separation (Unchanged)
1672                b1.x -= overlap * 0.5f * nx; b1.y -= overlap * 0.5f * ny;
1673                b2.x += overlap * 0.5f * nx; b2.y += overlap * 0.5f * ny;
1674
1675                float rvx = b1.vx - b2.vx; float rvy = b1.vy - b2.vy;
1676                float velAlongNormal = rvx * nx + rvy * ny;
1677
1678                if (velAlongNormal > 0) { // Colliding
1679                    // --- Play Ball Collision Sound ---
1680                    if (!playedCollideSoundThisFrame) {
1681                        std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("poolballhit.wav")).detach();
1682                        playedCollideSoundThisFrame = true; // Set flag
1683                    }
1684                    // --- End Sound ---
1685
1686                    // --- NEW: Track First Hit and Cue/Object Collision ---
1687                    if (firstHitBallIdThisShot == -1) { // If first hit hasn't been recorded yet
1688                        if (b1.id == 0) { // Cue ball hit b2 first
1689                            firstHitBallIdThisShot = b2.id;
1690                            cueHitObjectBallThisShot = true;
1691                        }
1692                        else if (b2.id == 0) { // Cue ball hit b1 first
1693                            firstHitBallIdThisShot = b1.id;
1694                            cueHitObjectBallThisShot = true;
1695                        }
1696                        // If neither is cue ball, doesn't count as first hit for foul purposes
1697                    }
1698                    else if (b1.id == 0 || b2.id == 0) {
1699                        // Track subsequent cue ball collisions with object balls
1700                        cueHitObjectBallThisShot = true;
1701                    }
1702                    // --- End First Hit Tracking ---
1703
1704
1705                    // Impulse (Unchanged)
1706                    float impulse = velAlongNormal;
1707                    b1.vx -= impulse * nx; b1.vy -= impulse * ny;
1708                    b2.vx += impulse * nx; b2.vy += impulse * ny;
1709
1710                    // Spin Transfer (Unchanged)
1711                    if (b1.id == 0 || b2.id == 0) {
1712                        float spinEffectFactor = 0.08f;
1713                        b1.vx += (cueSpinY * ny - cueSpinX * nx) * spinEffectFactor;
1714                        b1.vy += (cueSpinY * nx + cueSpinX * ny) * spinEffectFactor;
1715                        b2.vx -= (cueSpinY * ny - cueSpinX * nx) * spinEffectFactor;
1716                        b2.vy -= (cueSpinY * nx + cueSpinX * ny) * spinEffectFactor;
1717                        cueSpinX *= 0.85f; cueSpinY *= 0.85f;
1718                    }
1719                }
1720            }
1721        } // End ball-ball loop
1722    } // End ball loop
1723} // End CheckCollisions
1724
1725
1726bool CheckPockets() {
1727    bool ballPocketedThisCheck = false; // Local flag for this specific check run
1728    for (size_t i = 0; i < balls.size(); ++i) {
1729        Ball& b = balls[i];
1730        if (!b.isPocketed) { // Only check balls that aren't already flagged as pocketed
1731            for (int p = 0; p < 6; ++p) {
1732                float distSq = GetDistanceSq(b.x, b.y, pocketPositions[p].x, pocketPositions[p].y);
1733                // --- Use updated POCKET_RADIUS ---
1734                if (distSq < POCKET_RADIUS * POCKET_RADIUS) {
1735                    b.isPocketed = true;
1736                    b.vx = b.vy = 0;
1737                    pocketedThisTurn.push_back(b.id);
1738
1739                    // --- Play Pocket Sound (Threaded) ---
1740                    if (!ballPocketedThisCheck) {
1741                        std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("pocket.wav")).detach();
1742                        ballPocketedThisCheck = true;
1743                    }
1744                    // --- End Sound ---
1745
1746                    break; // Ball is pocketed
1747                }
1748            }
1749        }
1750    }
1751    return ballPocketedThisCheck;
1752}
1753
1754bool AreBallsMoving() {
1755    for (size_t i = 0; i < balls.size(); ++i) {
1756        if (!balls[i].isPocketed && (balls[i].vx != 0 || balls[i].vy != 0)) {
1757            return true;
1758        }
1759    }
1760    return false;
1761}
1762
1763void RespawnCueBall(bool behindHeadstring) { // 'behindHeadstring' only relevant for initial break placement
1764    Ball* cueBall = GetCueBall();
1765    if (cueBall) {
1766        // Reset position to a default
1767        //disabled for behind headstring (now move anywhere)
1768        /*cueBall->x = HEADSTRING_X * 0.5f;
1769        cueBall->y = TABLE_TOP + TABLE_HEIGHT / 2.0f;*/
1770        // Reset position to a default:
1771        if (behindHeadstring) {
1772            // Opening break: kitchen center
1773            cueBall->x = HEADSTRING_X * 0.5f;
1774            cueBall->y = TABLE_TOP + TABLE_HEIGHT / 2.0f;
1775        }
1776        else {
1777            // Ball-in-hand (foul): center of full table
1778            cueBall->x = TABLE_LEFT + TABLE_WIDTH / 2.0f;
1779            cueBall->y = TABLE_TOP + TABLE_HEIGHT / 2.0f;
1780        }
1781        cueBall->vx = 0;
1782        cueBall->vy = 0;
1783        cueBall->isPocketed = false;
1784
1785        // Set state based on who gets ball-in-hand
1786        /*// 'currentPlayer' already reflects who's turn it is NOW (switched before calling this)*/
1787        // 'currentPlayer' has already been switched to the player whose turn it will be.
1788        // The 'behindHeadstring' parameter to RespawnCueBall is mostly for historical reasons / initial setup.
1789        if (currentPlayer == 1) { // Player 2 (AI/Human) fouled, Player 1 (Human) gets ball-in-hand
1790            currentGameState = BALL_IN_HAND_P1;
1791            aiTurnPending = false; // Ensure AI flag off
1792        }
1793        else { // Player 1 (Human) fouled, Player 2 gets ball-in-hand
1794            if (isPlayer2AI) {
1795                // --- CONFIRMED FIX: Set correct state for AI Ball-in-Hand ---
1796                currentGameState = BALL_IN_HAND_P2; // AI now needs to place the ball
1797                aiTurnPending = true; // Trigger AI logic (will call AIPlaceCueBall first)
1798            }
1799            else { // Human Player 2
1800                currentGameState = BALL_IN_HAND_P2;
1801                aiTurnPending = false; // Ensure AI flag off
1802            }
1803        }
1804        // Handle initial placement state correctly if called from InitGame
1805        /*if (behindHeadstring && currentGameState != PRE_BREAK_PLACEMENT) {
1806            // This case might need review depending on exact initial setup flow,
1807            // but the foul logic above should now be correct.
1808            // Let's ensure initial state is PRE_BREAK_PLACEMENT if behindHeadstring is true.*/
1809            //currentGameState = PRE_BREAK_PLACEMENT;
1810    }
1811}
1812//}
1813
1814
1815// --- Game Logic ---
1816
1817void ApplyShot(float power, float angle, float spinX, float spinY) {
1818    Ball* cueBall = GetCueBall();
1819    if (cueBall) {
1820
1821        // --- Play Cue Strike Sound (Threaded) ---
1822        if (power > 0.1f) { // Only play if it's an audible shot
1823            std::thread([](const TCHAR* soundName) { PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT); }, TEXT("cue.wav")).detach();
1824        }
1825        // --- End Sound ---
1826
1827        cueBall->vx = cosf(angle) * power;
1828        cueBall->vy = sinf(angle) * power;
1829
1830        // Apply English (Spin) - Simplified effect (Unchanged)
1831        cueBall->vx += sinf(angle) * spinY * 0.5f;
1832        cueBall->vy -= cosf(angle) * spinY * 0.5f;
1833        cueBall->vx -= cosf(angle) * spinX * 0.5f;
1834        cueBall->vy -= sinf(angle) * spinX * 0.5f;
1835
1836        // Store spin (Unchanged)
1837        cueSpinX = spinX;
1838        cueSpinY = spinY;
1839
1840        // --- Reset Foul Tracking flags for the new shot ---
1841        // (Also reset in LBUTTONUP, but good to ensure here too)
1842        firstHitBallIdThisShot = -1;      // No ball hit yet
1843        cueHitObjectBallThisShot = false; // Cue hasn't hit anything yet
1844        railHitAfterContact = false;     // No rail hit after contact yet
1845        // --- End Reset ---
1846
1847                // If this was the opening break shot, clear the flag
1848        if (isOpeningBreakShot) {
1849            isOpeningBreakShot = false; // Mark opening break as taken
1850        }
1851    }
1852}
1853
1854
1855void ProcessShotResults() {
1856    bool cueBallPocketed = false;
1857    bool eightBallPocketed = false;
1858    bool legalBallPocketed = false;
1859
1860    // --- FIX: Update Ball Counts FIRST ---
1861    // This is the critical change. We must update the score before any other logic.
1862    PlayerInfo& shootingPlayer = (currentPlayer == 1) ? player1Info : player2Info;
1863    for (int id : pocketedThisTurn) {
1864        Ball* b = GetBallById(id);
1865        if (!b) continue;
1866
1867        if (b->id == 0) {
1868            cueBallPocketed = true;
1869        }
1870        else if (b->id == 8) {
1871            eightBallPocketed = true;
1872        }
1873        else {
1874            // This is a numbered ball. Update the pocketed count for the correct player.
1875            if (b->type == player1Info.assignedType && player1Info.assignedType != BallType::NONE) {
1876                player1Info.ballsPocketedCount++;
1877            }
1878            else if (b->type == player2Info.assignedType && player2Info.assignedType != BallType::NONE) {
1879                player2Info.ballsPocketedCount++;
1880            }
1881
1882            // Check if the current shooter pocketed one of their own balls
1883            if (b->type == shootingPlayer.assignedType) {
1884                legalBallPocketed = true;
1885            }
1886        }
1887    }
1888    // --- END FIX ---
1889
1890    // Now that counts are updated, check for a game-ending 8-ball shot.
1891    if (eightBallPocketed) {
1892        CheckGameOverConditions(true, cueBallPocketed);
1893        if (currentGameState == GAME_OVER) {
1894            pocketedThisTurn.clear();
1895            return;
1896        }
1897    }
1898
1899    // Determine if a foul occurred on the shot.
1900    bool turnFoul = false;
1901    if (cueBallPocketed) {
1902        turnFoul = true;
1903    }
1904    else {
1905        Ball* firstHit = GetBallById(firstHitBallIdThisShot);
1906        if (!firstHit) { // Rule: Hitting nothing is a foul.
1907            turnFoul = true;
1908        }
1909        else { // Rule: Hitting the wrong ball type is a foul.
1910            if (player1Info.assignedType != BallType::NONE) { // Colors are assigned.
1911                if (IsPlayerOnEightBall(currentPlayer)) {
1912                    if (firstHit->id != 8) turnFoul = true; // Must hit 8-ball first.
1913                }
1914                else {
1915                    if (firstHit->type != shootingPlayer.assignedType) turnFoul = true; // Must hit own ball type.
1916                }
1917            }
1918        }
1919    }
1920
1921    // Rule: No rail after contact is a foul.
1922    if (!turnFoul && cueHitObjectBallThisShot && !railHitAfterContact && pocketedThisTurn.empty()) {
1923        turnFoul = true;
1924    }
1925
1926    foulCommitted = turnFoul;
1927
1928    // --- State Transitions ---
1929    if (foulCommitted) {
1930        SwitchTurns();
1931        RespawnCueBall(false); // Ball in hand for the opponent.
1932    }
1933    else if (player1Info.assignedType == BallType::NONE && !pocketedThisTurn.empty() && !cueBallPocketed && !eightBallPocketed) {
1934        // Table is open, and a legal ball was pocketed. Assign types.
1935        Ball* firstBall = GetBallById(pocketedThisTurn[0]);
1936        if (firstBall) AssignPlayerBallTypes(firstBall->type);
1937        // The player's turn continues. NOW, check if they are on the 8-ball.
1938        CheckAndTransitionToPocketChoice(currentPlayer);
1939    }
1940    else if (legalBallPocketed) {
1941        // Player legally pocketed one of their own balls. Their turn continues.
1942        // The ball count is now correct, so this check will work perfectly.
1943        CheckAndTransitionToPocketChoice(currentPlayer);
1944    }
1945    else {
1946        // Player missed, or pocketed an opponent's ball without a foul. Turn switches.
1947        SwitchTurns();
1948    }
1949
1950    pocketedThisTurn.clear(); // Clean up for the next shot.
1951}
1952
1953void AssignPlayerBallTypes(BallType firstPocketedType) {
1954    if (firstPocketedType == BallType::SOLID || firstPocketedType == BallType::STRIPE) {
1955        if (currentPlayer == 1) {
1956            player1Info.assignedType = firstPocketedType;
1957            player2Info.assignedType = (firstPocketedType == BallType::SOLID) ? BallType::STRIPE : BallType::SOLID;
1958        }
1959        else {
1960            player2Info.assignedType = firstPocketedType;
1961            player1Info.assignedType = (firstPocketedType == BallType::SOLID) ? BallType::STRIPE : BallType::SOLID;
1962        }
1963    }
1964    // If 8-ball was first (illegal on break generally), rules vary.
1965    // Here, we might ignore assignment until a solid/stripe is pocketed legally.
1966    // Or assign based on what *else* was pocketed, if anything.
1967    // Simplification: Assignment only happens on SOLID or STRIPE first pocket.
1968}
1969
1970void CheckGameOverConditions(bool eightBallPocketed, bool cueBallPocketed) {
1971    if (!eightBallPocketed) return;
1972
1973    PlayerInfo& shootingPlayer = (currentPlayer == 1) ? player1Info : player2Info;
1974    PlayerInfo& opponentPlayer = (currentPlayer == 1) ? player2Info : player1Info;
1975    bool shooterWasOn8Ball = IsPlayerOnEightBall(currentPlayer);
1976    int pocketThe8BallEntered = -1;
1977
1978    // Find which pocket the 8-ball actually went into
1979    Ball* b = GetBallById(8);
1980    if (b) {
1981        for (int p_idx = 0; p_idx < 6; ++p_idx) {
1982            if (GetDistanceSq(b->x, b->y, pocketPositions[p_idx].x, pocketPositions[p_idx].y) < POCKET_RADIUS * POCKET_RADIUS * 1.5f) {
1983                pocketThe8BallEntered = p_idx;
1984                break;
1985            }
1986        }
1987    }
1988
1989    // Case 1: 8-ball pocketed on the break (or before colors assigned)
1990    if (player1Info.assignedType == BallType::NONE) {
1991        if (b) { // Re-spot the 8-ball
1992            b->isPocketed = false;
1993            b->x = RACK_POS_X;
1994            b->y = RACK_POS_Y;
1995            b->vx = b->vy = 0;
1996        }
1997        if (cueBallPocketed) {
1998            foulCommitted = true; // Let ProcessShotResults handle the foul, game doesn't end.
1999        }
2000        return; // Game continues
2001    }
2002
2003    // Case 2: Normal gameplay win/loss conditions
2004    int calledPocket = (currentPlayer == 1) ? calledPocketP1 : calledPocketP2;
2005
2006    if (!shooterWasOn8Ball) {
2007        // Loss: Pocketed 8-ball before clearing own group.
2008        gameOverMessage = opponentPlayer.name + L" Wins! (" + shootingPlayer.name + L" pocketed 8-ball early)";
2009    }
2010    else if (cueBallPocketed) {
2011        // Loss: Scratched while shooting for the 8-ball.
2012        gameOverMessage = opponentPlayer.name + L" Wins! (" + shootingPlayer.name + L" scratched on 8-ball)";
2013    }
2014    else if (calledPocket == -1) {
2015        // Loss: Pocketed 8-ball without calling a pocket. THIS IS THE KEY FIX FOR YOUR REPORTED PROBLEM.
2016        gameOverMessage = opponentPlayer.name + L" Wins! (" + shootingPlayer.name + L" did not call a pocket)";
2017    }
2018    else if (pocketThe8BallEntered != calledPocket) {
2019        // Loss: Pocketed 8-ball in the wrong pocket.
2020        gameOverMessage = opponentPlayer.name + L" Wins! (" + shootingPlayer.name + L" 8-ball in wrong pocket)";
2021    }
2022    else {
2023        // WIN! Pocketed 8-ball in the called pocket without a foul.
2024        gameOverMessage = shootingPlayer.name + L" Wins!";
2025    }
2026
2027    currentGameState = GAME_OVER;
2028}
2029
2030
2031void SwitchTurns() {
2032    currentPlayer = (currentPlayer == 1) ? 2 : 1;
2033    isAiming = false;
2034    shotPower = 0;
2035    CheckAndTransitionToPocketChoice(currentPlayer); // Use the new helper
2036}
2037
2038void AIBreakShot() {
2039    Ball* cueBall = GetCueBall();
2040    if (!cueBall) return;
2041
2042    // This function is called when it's AI's turn for the opening break and state is PRE_BREAK_PLACEMENT.
2043    // AI will place the cue ball and then plan the shot.
2044    if (isOpeningBreakShot && currentGameState == PRE_BREAK_PLACEMENT) {
2045        // Place cue ball in the kitchen randomly
2046        /*float kitchenMinX = TABLE_LEFT + BALL_RADIUS; // [cite: 1071, 1072, 1587]
2047        float kitchenMaxX = HEADSTRING_X - BALL_RADIUS; // [cite: 1072, 1078, 1588]
2048        float kitchenMinY = TABLE_TOP + BALL_RADIUS; // [cite: 1071, 1072, 1588]
2049        float kitchenMaxY = TABLE_BOTTOM - BALL_RADIUS; // [cite: 1072, 1073, 1589]*/
2050
2051        // --- AI Places Cue Ball for Break ---
2052// Decide if placing center or side. For simplicity, let's try placing slightly off-center
2053// towards one side for a more angled break, or center for direct apex hit.
2054// A common strategy is to hit the second ball of the rack.
2055
2056        float placementY = RACK_POS_Y; // Align vertically with the rack center
2057        float placementX;
2058
2059        // Randomly choose a side or center-ish placement for variation.
2060        int placementChoice = rand() % 3; // 0: Left-ish, 1: Center-ish, 2: Right-ish in kitchen
2061
2062        if (placementChoice == 0) { // Left-ish
2063            placementX = HEADSTRING_X - (TABLE_WIDTH * 0.05f) - (BALL_RADIUS * (1 + (rand() % 3))); // Place slightly to the left within kitchen
2064        }
2065        else if (placementChoice == 2) { // Right-ish
2066            placementX = HEADSTRING_X - (TABLE_WIDTH * 0.05f) + (BALL_RADIUS * (1 + (rand() % 3))); // Place slightly to the right within kitchen
2067        }
2068        else { // Center-ish
2069            placementX = TABLE_LEFT + (HEADSTRING_X - TABLE_LEFT) * 0.5f; // Roughly center of kitchen
2070        }
2071        placementX = std::max(TABLE_LEFT + BALL_RADIUS + 1.0f, std::min(placementX, HEADSTRING_X - BALL_RADIUS - 1.0f)); // Clamp within kitchen X
2072
2073        bool validPos = false;
2074        int attempts = 0;
2075        while (!validPos && attempts < 100) {
2076            /*cueBall->x = kitchenMinX + static_cast<float>(rand()) / (static_cast<float>(RAND_MAX) / (kitchenMaxX - kitchenMinX)); // [cite: 1589]
2077            cueBall->y = kitchenMinY + static_cast<float>(rand()) / (static_cast<float>(RAND_MAX) / (kitchenMaxY - kitchenMinY)); // [cite: 1590]
2078            if (IsValidCueBallPosition(cueBall->x, cueBall->y, true)) { // [cite: 1591]
2079                validPos = true; // [cite: 1591]*/
2080                // Try the chosen X, but vary Y slightly to find a clear spot
2081            cueBall->x = placementX;
2082            cueBall->y = placementY + (static_cast<float>(rand() % 100 - 50) / 100.0f) * BALL_RADIUS * 2.0f; // Vary Y a bit
2083            cueBall->y = std::max(TABLE_TOP + BALL_RADIUS + 1.0f, std::min(cueBall->y, TABLE_BOTTOM - BALL_RADIUS - 1.0f)); // Clamp Y
2084
2085            if (IsValidCueBallPosition(cueBall->x, cueBall->y, true /* behind headstring */)) {
2086                validPos = true;
2087            }
2088            attempts++; // [cite: 1592]
2089        }
2090        if (!validPos) {
2091            // Fallback position
2092            /*cueBall->x = TABLE_LEFT + (HEADSTRING_X - TABLE_LEFT) * 0.5f; // [cite: 1071, 1078, 1593]
2093            cueBall->y = (TABLE_TOP + TABLE_BOTTOM) * 0.5f; // [cite: 1071, 1073, 1594]
2094            if (!IsValidCueBallPosition(cueBall->x, cueBall->y, true)) { // [cite: 1594]
2095                cueBall->x = HEADSTRING_X - BALL_RADIUS * 2; // [cite: 1072, 1078, 1594]
2096                cueBall->y = RACK_POS_Y; // [cite: 1080, 1595]
2097            }
2098        }
2099        cueBall->vx = 0; // [cite: 1595]
2100        cueBall->vy = 0; // [cite: 1596]
2101
2102        // Plan a break shot: aim at the center of the rack (apex ball)
2103        float targetX = RACK_POS_X; // [cite: 1079] Aim for the apex ball X-coordinate
2104        float targetY = RACK_POS_Y; // [cite: 1080] Aim for the apex ball Y-coordinate
2105
2106        float dx = targetX - cueBall->x; // [cite: 1599]
2107        float dy = targetY - cueBall->y; // [cite: 1600]
2108        float shotAngle = atan2f(dy, dx); // [cite: 1600]
2109        float shotPowerValue = MAX_SHOT_POWER; // [cite: 1076, 1600] Use MAX_SHOT_POWER*/
2110
2111            cueBall->x = TABLE_LEFT + (HEADSTRING_X - TABLE_LEFT) * 0.75f; // A default safe spot in kitchen
2112            cueBall->y = RACK_POS_Y;
2113        }
2114        cueBall->vx = 0; cueBall->vy = 0;
2115
2116        // --- AI Plans the Break Shot ---
2117        float targetX, targetY;
2118        // If cue ball is near center of kitchen width, aim for apex.
2119        // Otherwise, aim for the second ball on the side the cue ball is on (for a cut break).
2120        float kitchenCenterRegion = (HEADSTRING_X - TABLE_LEFT) * 0.3f; // Define a "center" region
2121        if (std::abs(cueBall->x - (TABLE_LEFT + (HEADSTRING_X - TABLE_LEFT) / 2.0f)) < kitchenCenterRegion / 2.0f) {
2122            // Center-ish placement: Aim for the apex ball (ball ID 1 or first ball in rack)
2123            targetX = RACK_POS_X; // Apex ball X
2124            targetY = RACK_POS_Y; // Apex ball Y
2125        }
2126        else {
2127            // Side placement: Aim to hit the "second" ball of the rack for a wider spread.
2128            // This is a simplification. A more robust way is to find the actual second ball.
2129            // For now, aim slightly off the apex towards the side the cue ball is on.
2130            targetX = RACK_POS_X + BALL_RADIUS * 2.0f * 0.866f; // X of the second row of balls
2131            targetY = RACK_POS_Y + ((cueBall->y > RACK_POS_Y) ? -BALL_RADIUS : BALL_RADIUS); // Aim at the upper or lower of the two second-row balls
2132        }
2133
2134        float dx = targetX - cueBall->x;
2135        float dy = targetY - cueBall->y;
2136        float shotAngle = atan2f(dy, dx);
2137        float shotPowerValue = MAX_SHOT_POWER * (0.9f + (rand() % 11) / 100.0f); // Slightly vary max power
2138
2139        // Store planned shot details for the AI
2140        /*aiPlannedShotDetails.angle = shotAngle; // [cite: 1102, 1601]
2141        aiPlannedShotDetails.power = shotPowerValue; // [cite: 1102, 1601]
2142        aiPlannedShotDetails.spinX = 0.0f; // [cite: 1102, 1601] No spin for a standard power break
2143        aiPlannedShotDetails.spinY = 0.0f; // [cite: 1103, 1602]
2144        aiPlannedShotDetails.isValid = true; // [cite: 1103, 1602]*/
2145
2146        aiPlannedShotDetails.angle = shotAngle;
2147        aiPlannedShotDetails.power = shotPowerValue;
2148        aiPlannedShotDetails.spinX = 0.0f; // No spin for break usually
2149        aiPlannedShotDetails.spinY = 0.0f;
2150        aiPlannedShotDetails.isValid = true;
2151
2152        // Update global cue parameters for immediate visual feedback if DrawAimingAids uses them
2153        /*::cueAngle = aiPlannedShotDetails.angle;      // [cite: 1109, 1603] Update global cueAngle
2154        ::shotPower = aiPlannedShotDetails.power;     // [cite: 1109, 1604] Update global shotPower
2155        ::cueSpinX = aiPlannedShotDetails.spinX;    // [cite: 1109]
2156        ::cueSpinY = aiPlannedShotDetails.spinY;    // [cite: 1110]*/
2157
2158        ::cueAngle = aiPlannedShotDetails.angle;
2159        ::shotPower = aiPlannedShotDetails.power;
2160        ::cueSpinX = aiPlannedShotDetails.spinX;
2161        ::cueSpinY = aiPlannedShotDetails.spinY;
2162
2163        // Set up for AI display via GameUpdate
2164        /*aiIsDisplayingAim = true;                   // [cite: 1104] Enable AI aiming visualization
2165        aiAimDisplayFramesLeft = AI_AIM_DISPLAY_DURATION_FRAMES; // [cite: 1105] Set duration for display
2166
2167        currentGameState = AI_THINKING; // [cite: 1081] Transition to AI_THINKING state.
2168                                        // GameUpdate will handle the aiAimDisplayFramesLeft countdown
2169                                        // and then execute the shot using aiPlannedShotDetails.
2170                                        // isOpeningBreakShot will be set to false within ApplyShot.
2171
2172        // No immediate ApplyShot or sound here; GameUpdate's AI execution logic will handle it.*/
2173
2174        aiIsDisplayingAim = true;
2175        aiAimDisplayFramesLeft = AI_AIM_DISPLAY_DURATION_FRAMES;
2176        currentGameState = AI_THINKING; // State changes to AI_THINKING, GameUpdate will handle shot execution after display
2177
2178        return; // The break shot is now planned and will be executed by GameUpdate
2179    }
2180
2181    // 2. If not in PRE_BREAK_PLACEMENT (e.g., if this function were called at other times,
2182    //    though current game logic only calls it for PRE_BREAK_PLACEMENT)
2183    //    This part can be extended if AIBreakShot needs to handle other scenarios.
2184    //    For now, the primary logic is above.
2185}
2186
2187// --- Helper Functions ---
2188
2189Ball* GetBallById(int id) {
2190    for (size_t i = 0; i < balls.size(); ++i) {
2191        if (balls[i].id == id) {
2192            return &balls[i];
2193        }
2194    }
2195    return nullptr;
2196}
2197
2198Ball* GetCueBall() {
2199    return GetBallById(0);
2200}
2201
2202float GetDistance(float x1, float y1, float x2, float y2) {
2203    return sqrtf(GetDistanceSq(x1, y1, x2, y2));
2204}
2205
2206float GetDistanceSq(float x1, float y1, float x2, float y2) {
2207    float dx = x2 - x1;
2208    float dy = y2 - y1;
2209    return dx * dx + dy * dy;
2210}
2211
2212bool IsValidCueBallPosition(float x, float y, bool checkHeadstring) {
2213    // Basic bounds check (inside cushions)
2214    float left = TABLE_LEFT + CUSHION_THICKNESS + BALL_RADIUS;
2215    float right = TABLE_RIGHT - CUSHION_THICKNESS - BALL_RADIUS;
2216    float top = TABLE_TOP + CUSHION_THICKNESS + BALL_RADIUS;
2217    float bottom = TABLE_BOTTOM - CUSHION_THICKNESS - BALL_RADIUS;
2218
2219    if (x < left || x > right || y < top || y > bottom) {
2220        return false;
2221    }
2222
2223    // Check headstring restriction if needed
2224    if (checkHeadstring && x >= HEADSTRING_X) {
2225        return false;
2226    }
2227
2228    // Check overlap with other balls
2229    for (size_t i = 0; i < balls.size(); ++i) {
2230        if (balls[i].id != 0 && !balls[i].isPocketed) { // Don't check against itself or pocketed balls
2231            if (GetDistanceSq(x, y, balls[i].x, balls[i].y) < (BALL_RADIUS * 2.0f) * (BALL_RADIUS * 2.0f)) {
2232                return false; // Overlapping another ball
2233            }
2234        }
2235    }
2236
2237    return true;
2238}
2239
2240// --- NEW HELPER FUNCTION IMPLEMENTATIONS ---
2241
2242// Checks if a player has pocketed all their balls and is now on the 8-ball.
2243bool IsPlayerOnEightBall(int player) {
2244    PlayerInfo& playerInfo = (player == 1) ? player1Info : player2Info;
2245    if (playerInfo.assignedType != BallType::NONE && playerInfo.assignedType != BallType::EIGHT_BALL && playerInfo.ballsPocketedCount >= 7) {
2246        Ball* eightBall = GetBallById(8);
2247        return (eightBall && !eightBall->isPocketed);
2248    }
2249    return false;
2250}
2251
2252// Centralized logic to enter the "choosing pocket" state. This fixes the indicator bugs.
2253void CheckAndTransitionToPocketChoice(int playerID) {
2254    bool needsToCall = IsPlayerOnEightBall(playerID);
2255    int* calledPocketForPlayer = (playerID == 1) ? &calledPocketP1 : &calledPocketP2;
2256
2257    if (needsToCall && *calledPocketForPlayer == -1) { // Only transition if a pocket hasn't been called yet
2258        pocketCallMessage = ((playerID == 1) ? player1Info.name : player2Info.name) + L": Choose a pocket...";
2259        if (playerID == 1) {
2260            currentGameState = CHOOSING_POCKET_P1;
2261        }
2262        else { // Player 2
2263            if (isPlayer2AI) {
2264                currentGameState = AI_THINKING;
2265                aiTurnPending = true;
2266            }
2267            else {
2268                currentGameState = CHOOSING_POCKET_P2;
2269            }
2270        }
2271        if (!(playerID == 2 && isPlayer2AI)) {
2272            *calledPocketForPlayer = 5; // Default to top-right if none chosen
2273        }
2274    }
2275    else {
2276        // Player does not need to call a pocket (or already has), proceed to normal turn.
2277        pocketCallMessage = L""; // Clear any message
2278        currentGameState = (playerID == 1) ? PLAYER1_TURN : PLAYER2_TURN;
2279        if (playerID == 2 && isPlayer2AI) {
2280            aiTurnPending = true;
2281        }
2282    }
2283}
2284
2285template <typename T>
2286void SafeRelease(T** ppT) {
2287    if (*ppT) {
2288        (*ppT)->Release();
2289        *ppT = nullptr;
2290    }
2291}
2292
2293// --- Helper Function for Line Segment Intersection ---
2294// Finds intersection point of line segment P1->P2 and line segment P3->P4
2295// Returns true if they intersect, false otherwise. Stores intersection point in 'intersection'.
2296bool LineSegmentIntersection(D2D1_POINT_2F p1, D2D1_POINT_2F p2, D2D1_POINT_2F p3, D2D1_POINT_2F p4, D2D1_POINT_2F& intersection)
2297{
2298    float denominator = (p4.y - p3.y) * (p2.x - p1.x) - (p4.x - p3.x) * (p2.y - p1.y);
2299
2300    // Check if lines are parallel or collinear
2301    if (fabs(denominator) < 1e-6) {
2302        return false;
2303    }
2304
2305    float ua = ((p4.x - p3.x) * (p1.y - p3.y) - (p4.y - p3.y) * (p1.x - p3.x)) / denominator;
2306    float ub = ((p2.x - p1.x) * (p1.y - p3.y) - (p2.y - p1.y) * (p1.x - p3.x)) / denominator;
2307
2308    // Check if intersection point lies on both segments
2309    if (ua >= 0.0f && ua <= 1.0f && ub >= 0.0f && ub <= 1.0f) {
2310        intersection.x = p1.x + ua * (p2.x - p1.x);
2311        intersection.y = p1.y + ua * (p2.y - p1.y);
2312        return true;
2313    }
2314
2315    return false;
2316}
2317
2318// --- INSERT NEW HELPER FUNCTION HERE ---
2319// Calculates the squared distance from point P to the line segment AB.
2320float PointToLineSegmentDistanceSq(D2D1_POINT_2F p, D2D1_POINT_2F a, D2D1_POINT_2F b) {
2321    float l2 = GetDistanceSq(a.x, a.y, b.x, b.y);
2322    if (l2 == 0.0f) return GetDistanceSq(p.x, p.y, a.x, a.y); // Segment is a point
2323    // Consider P projecting onto the line AB infinite line
2324    // t = [(P-A) . (B-A)] / |B-A|^2
2325    float t = ((p.x - a.x) * (b.x - a.x) + (p.y - a.y) * (b.y - a.y)) / l2;
2326    t = std::max(0.0f, std::min(1.0f, t)); // Clamp t to the segment [0, 1]
2327    // Projection falls on the segment
2328    D2D1_POINT_2F projection = D2D1::Point2F(a.x + t * (b.x - a.x), a.y + t * (b.y - a.y));
2329    return GetDistanceSq(p.x, p.y, projection.x, projection.y);
2330}
2331// --- End New Helper ---
2332
2333// --- NEW AI Implementation Functions ---
2334
2335// Main entry point for AI turn
2336void AIMakeDecision() {
2337    //AIShotInfo bestShot = { false }; // Declare here
2338    // This function is called when currentGameState is AI_THINKING (for a normal shot decision)
2339    Ball* cueBall = GetCueBall();
2340    if (!cueBall || !isPlayer2AI || currentPlayer != 2) {
2341        aiPlannedShotDetails.isValid = false; // Ensure no shot if conditions not met
2342        return;
2343    }
2344
2345    // Phase 1: Placement if needed (Ball-in-Hand or Initial Break)
2346    /*if ((isOpeningBreakShot && currentGameState == PRE_BREAK_PLACEMENT) || currentGameState == BALL_IN_HAND_P2) {
2347        AIPlaceCueBall(); // Handles kitchen placement for break or regular ball-in-hand
2348        if (isOpeningBreakShot && currentGameState == PRE_BREAK_PLACEMENT) {
2349            currentGameState = BREAKING; // Now AI needs to decide the break shot parameters
2350        }
2351        // For regular BALL_IN_HAND_P2, after placement, it will proceed to find a shot.
2352    }*/
2353
2354    aiPlannedShotDetails.isValid = false; // Default to no valid shot found yet for this decision cycle
2355    // Note: isOpeningBreakShot is false here because AIBreakShot handles the break.
2356
2357     // Phase 2: Decide shot parameters (Break or Normal play)
2358    /*if (isOpeningBreakShot && currentGameState == BREAKING) {
2359        // Force cue ball into center of kitchen
2360        cueBall->x = TABLE_LEFT + (HEADSTRING_X - TABLE_LEFT) * 0.5f;
2361        cueBall->y = (TABLE_TOP + TABLE_BOTTOM) * 0.5f;
2362        cueBall->vx = cueBall->vy = 0.0f;
2363
2364        float rackCenterX = RACK_POS_X + BALL_RADIUS * 2.0f * 0.866f * 2.0f;
2365        float rackCenterY = RACK_POS_Y;
2366        float dx = rackCenterX - cueBall->x;
2367        float dy = rackCenterY - cueBall->y;
2368
2369        aiPlannedShotDetails.angle = atan2f(dy, dx);
2370        aiPlannedShotDetails.power = MAX_SHOT_POWER;
2371        aiPlannedShotDetails.spinX = 0.0f;
2372        aiPlannedShotDetails.spinY = 0.0f;
2373        aiPlannedShotDetails.isValid = true;
2374
2375        // Apply shot immediately
2376        cueAngle = aiPlannedShotDetails.angle;
2377        shotPower = aiPlannedShotDetails.power;
2378        cueSpinX = aiPlannedShotDetails.spinX;
2379        cueSpinY = aiPlannedShotDetails.spinY;
2380
2381        firstHitBallIdThisShot = -1;
2382        cueHitObjectBallThisShot = false;
2383        railHitAfterContact = false;
2384        isAiming = false;
2385        aiIsDisplayingAim = false;
2386        aiAimDisplayFramesLeft = AI_AIM_DISPLAY_DURATION_FRAMES;
2387        //bool aiIsDisplayingAim = true;
2388
2389        std::thread([](const TCHAR* soundName) {
2390            PlaySound(soundName, NULL, SND_FILENAME | SND_NODEFAULT);
2391            }, TEXT("cue.wav")).detach();
2392
2393            ApplyShot(shotPower, cueAngle, cueSpinX, cueSpinY);
2394            currentGameState = SHOT_IN_PROGRESS;
2395            isOpeningBreakShot = false;
2396            aiTurnPending = false;
2397            pocketedThisTurn.clear();
2398            return;
2399    }
2400    else {*/
2401    // --- Normal AI Shot Decision (using AIFindBestShot) ---
2402    AIShotInfo bestShot = AIFindBestShot(); // bugtraq
2403    //bestShot = AIFindBestShot(); // bugtraq
2404    if (bestShot.possible) {
2405        aiPlannedShotDetails.angle = bestShot.angle;
2406        aiPlannedShotDetails.power = bestShot.power;
2407        aiPlannedShotDetails.spinX = 0.0f; // AI doesn't use spin yet
2408        aiPlannedShotDetails.spinY = 0.0f;
2409        aiPlannedShotDetails.isValid = true;
2410    }
2411    else {
2412        // Safety tap if no better shot found
2413        // Try to hit the closest 'own' ball gently or any ball if types not assigned
2414        Ball* ballToNudge = nullptr;
2415        float minDistSq = -1.0f;
2416        BallType aiTargetType = player2Info.assignedType;
2417        bool mustHit8Ball = (aiTargetType != BallType::NONE && player2Info.ballsPocketedCount >= 7);
2418
2419        for (auto& b : balls) {
2420            if (b.isPocketed || b.id == 0) continue;
2421            bool canHitThis = false;
2422            if (mustHit8Ball) canHitThis = (b.id == 8);
2423            else if (aiTargetType != BallType::NONE) canHitThis = (b.type == aiTargetType);
2424            else canHitThis = (b.id != 8); // Can hit any non-8-ball if types not assigned
2425
2426            if (canHitThis) {
2427                float dSq = GetDistanceSq(cueBall->x, cueBall->y, b.x, b.y);
2428                if (ballToNudge == nullptr || dSq < minDistSq) {
2429                    ballToNudge = &b;
2430                    minDistSq = dSq;
2431                }
2432            }
2433        }
2434        if (ballToNudge) { // Found a ball to nudge
2435            aiPlannedShotDetails.angle = atan2f(ballToNudge->y - cueBall->y, ballToNudge->x - cueBall->x);
2436            aiPlannedShotDetails.power = MAX_SHOT_POWER * 0.15f; // Gentle tap
2437        }
2438        else { // Absolute fallback: small tap forward
2439            aiPlannedShotDetails.angle = cueAngle; // Keep last angle or default
2440            //aiPlannedShotDetails.power = MAX_SHOT_POWER * 0.1f;
2441            aiPlannedShotDetails.power = MAX_SHOT_POWER * 0.1f;
2442        }
2443        aiPlannedShotDetails.spinX = 0.0f;
2444        aiPlannedShotDetails.spinY = 0.0f;
2445        aiPlannedShotDetails.isValid = true; // Safety shot is a "valid" plan
2446    }
2447    //} //bracefix
2448
2449    // Phase 3: Setup for Aim Display (if a valid shot was decided)
2450    if (aiPlannedShotDetails.isValid) {
2451        cueAngle = aiPlannedShotDetails.angle;   // Update global for drawing
2452        shotPower = aiPlannedShotDetails.power;  // Update global for drawing
2453        // cueSpinX and cueSpinY could also be set here if AI used them
2454        cueSpinX = aiPlannedShotDetails.spinX; // Also set these for drawing consistency
2455        cueSpinY = aiPlannedShotDetails.spinY; //
2456
2457        aiIsDisplayingAim = true;
2458        aiAimDisplayFramesLeft = AI_AIM_DISPLAY_DURATION_FRAMES;
2459        // currentGameState remains AI_THINKING, GameUpdate will handle the display countdown and shot execution.
2460            // FIRE THE BREAK SHOT NOW
2461            // Immediately execute the break shot after setting parameters
2462        /*ApplyShot(aiPlannedShotDetails.power, aiPlannedShotDetails.angle, aiPlannedShotDetails.spinX, aiPlannedShotDetails.spinY);
2463        currentGameState = SHOT_IN_PROGRESS;
2464        aiTurnPending = false;
2465        isOpeningBreakShot = false;*/
2466    }
2467    else {
2468        // Should not happen if safety shot is always planned, but as a fallback:
2469        aiIsDisplayingAim = false;
2470        // If AI truly can't decide anything, maybe switch turn or log error. For now, it will do nothing this frame.
2471        // Or force a minimal safety tap without display.
2472        // To ensure game progresses, let's plan a minimal tap if nothing else.
2473        if (!aiPlannedShotDetails.isValid) { // Double check
2474            aiPlannedShotDetails.angle = 0.0f;
2475            aiPlannedShotDetails.power = MAX_SHOT_POWER * 0.05f; // Very small tap
2476            aiPlannedShotDetails.spinX = 0.0f; aiPlannedShotDetails.spinY = 0.0f;
2477            aiPlannedShotDetails.isValid = true;
2478            //cueAngle = aiPlannedShotDetails.angle; shotPower = aiPlannedShotDetails.power;
2479            cueAngle = aiPlannedShotDetails.angle;
2480            shotPower = aiPlannedShotDetails.power;
2481            cueSpinX = aiPlannedShotDetails.spinX;
2482            cueSpinY = aiPlannedShotDetails.spinY;
2483            aiIsDisplayingAim = true; // Allow display for this minimal tap too
2484            aiAimDisplayFramesLeft = AI_AIM_DISPLAY_DURATION_FRAMES / 2; // Shorter display for fallback
2485        }
2486    }
2487    // aiTurnPending was set to false by GameUpdate before calling AIMakeDecision.
2488    // AIMakeDecision's job is to populate aiPlannedShotDetails and trigger display.
2489}
2490
2491// AI logic for placing cue ball during ball-in-hand
2492void AIPlaceCueBall() {
2493    Ball* cueBall = GetCueBall();
2494    if (!cueBall) return;
2495
2496    // --- CPU AI Opening Break: Kitchen Placement ---
2497    /*if (isOpeningBreakShot && currentGameState == PRE_BREAK_PLACEMENT && currentPlayer == 2 && isPlayer2AI) {
2498        float kitchenMinX = TABLE_LEFT + BALL_RADIUS;
2499        float kitchenMaxX = HEADSTRING_X - BALL_RADIUS;
2500        float kitchenMinY = TABLE_TOP + BALL_RADIUS;
2501        float kitchenMaxY = TABLE_BOTTOM - BALL_RADIUS;
2502        bool validPositionFound = false;
2503        int attempts = 0;
2504        while (!validPositionFound && attempts < 100) {
2505            cueBall->x = kitchenMinX + static_cast <float> (rand()) / (static_cast <float> (RAND_MAX / (kitchenMaxX - kitchenMinX)));
2506            cueBall->y = kitchenMinY + static_cast <float> (rand()) / (static_cast <float> (RAND_MAX / (kitchenMaxY - kitchenMinY)));
2507            if (IsValidCueBallPosition(cueBall->x, cueBall->y, true)) {
2508                validPositionFound = true;
2509            }
2510            attempts++;
2511        }
2512        if (!validPositionFound) {
2513            cueBall->x = TABLE_LEFT + (HEADSTRING_X - TABLE_LEFT) * 0.5f;
2514            cueBall->y = TABLE_TOP + TABLE_HEIGHT / 2.0f;
2515            if (!IsValidCueBallPosition(cueBall->x, cueBall->y, true)) {
2516                cueBall->x = HEADSTRING_X - BALL_RADIUS * 2.0f;
2517                cueBall->y = RACK_POS_Y;
2518            }
2519        }
2520        cueBall->vx = 0; cueBall->vy = 0;
2521        return;
2522    }*/
2523    // --- End CPU AI Opening Break Placement ---
2524
2525    // This function is now SOLELY for Ball-In-Hand placement for the AI (anywhere on the table).
2526    // Break placement is handled by AIBreakShot().
2527
2528    // Simple Strategy: Find the easiest possible shot for the AI's ball type
2529    // Place the cue ball directly behind that target ball, aiming straight at a pocket.
2530    // (More advanced: find spot offering multiple options or safety)
2531
2532    AIShotInfo bestPlacementShot = { false };
2533    D2D1_POINT_2F bestPlacePos = D2D1::Point2F(HEADSTRING_X * 0.5f, RACK_POS_Y); // Default placement
2534
2535    // A better default for ball-in-hand (anywhere) might be center table if no shot found.
2536    bestPlacePos = D2D1::Point2F(TABLE_LEFT + TABLE_WIDTH / 2.0f, TABLE_TOP + TABLE_HEIGHT / 2.0f);
2537    float bestPlacementScore = -1.0f; // Keep track of the score for the best placement found
2538
2539    BallType targetType = player2Info.assignedType;
2540    bool canTargetAnyPlacement = false; // Local scope variable for placement logic
2541    if (targetType == BallType::NONE) {
2542        canTargetAnyPlacement = true;
2543    }
2544    bool target8Ball = (!canTargetAnyPlacement && targetType != BallType::NONE && player2Info.ballsPocketedCount >= 7);
2545    if (target8Ball) targetType = BallType::EIGHT_BALL;
2546
2547
2548    for (auto& targetBall : balls) {
2549        if (targetBall.isPocketed || targetBall.id == 0) continue;
2550
2551        // Determine if current ball is a valid target for placement consideration
2552        bool currentBallIsValidTarget = false;
2553        if (target8Ball && targetBall.id == 8) currentBallIsValidTarget = true;
2554        else if (canTargetAnyPlacement && targetBall.id != 8) currentBallIsValidTarget = true;
2555        else if (!canTargetAnyPlacement && !target8Ball && targetBall.type == targetType) currentBallIsValidTarget = true;
2556
2557        if (!currentBallIsValidTarget) continue; // Skip if not a valid target
2558
2559        for (int p = 0; p < 6; ++p) {
2560            // Calculate ideal cue ball position: straight line behind target ball aiming at pocket p
2561            float targetToPocketX = pocketPositions[p].x - targetBall.x;
2562            float targetToPocketY = pocketPositions[p].y - targetBall.y;
2563            float dist = sqrtf(targetToPocketX * targetToPocketX + targetToPocketY * targetToPocketY);
2564            if (dist < 1.0f) continue; // Avoid division by zero
2565
2566            float idealAngle = atan2f(targetToPocketY, targetToPocketX);
2567            // Place cue ball slightly behind target ball along this line
2568            float placeDist = BALL_RADIUS * 3.0f; // Place a bit behind
2569            D2D1_POINT_2F potentialPlacePos = D2D1::Point2F( // Use factory function
2570                targetBall.x - cosf(idealAngle) * placeDist,
2571                targetBall.y - sinf(idealAngle) * placeDist
2572            );
2573
2574            // Check if this placement is valid (on table, behind headstring if break, not overlapping)
2575            /*bool behindHeadstringRule = (currentGameState == PRE_BREAK_PLACEMENT);*/
2576            // For ball-in-hand (NOT break), behindHeadstringRule is false.
2577            // The currentGameState should be BALL_IN_HAND_P2 when this is called for a foul.
2578            bool behindHeadstringRule = false; // Player can place anywhere after a foul
2579            if (IsValidCueBallPosition(potentialPlacePos.x, potentialPlacePos.y, behindHeadstringRule)) {
2580                // Is path from potentialPlacePos to targetBall clear?
2581                // Use D2D1::Point2F() factory function here
2582                if (IsPathClear(potentialPlacePos, D2D1::Point2F(targetBall.x, targetBall.y), 0, targetBall.id)) {
2583                    // Is path from targetBall to pocket clear?
2584                    // Use D2D1::Point2F() factory function here
2585                    if (IsPathClear(D2D1::Point2F(targetBall.x, targetBall.y), pocketPositions[p], targetBall.id, -1)) {
2586                        // This seems like a good potential placement. Score it?
2587                        // Easy AI: Just take the first valid one found.
2588                        /*bestPlacePos = potentialPlacePos;
2589                        goto placement_found;*/ // Use goto for simplicity in non-OOP structure
2590                        // This is a possible shot. Score this placement.
2591// A simple score: distance to target ball (shorter is better for placement).
2592// More advanced: consider angle to pocket, difficulty of the shot from this placement.
2593                        AIShotInfo tempShotInfo;
2594                        tempShotInfo.possible = true;
2595                        tempShotInfo.targetBall = &targetBall;
2596                        tempShotInfo.pocketIndex = p;
2597                        tempShotInfo.ghostBallPos = CalculateGhostBallPos(&targetBall, p); // Not strictly needed for placement score but good for consistency
2598                        tempShotInfo.angle = idealAngle; // The angle from the placed ball to target
2599                        // Use EvaluateShot's scoring mechanism if possible, or a simpler one here.
2600                        float currentScore = 1000.0f / (1.0f + GetDistance(potentialPlacePos.x, potentialPlacePos.y, targetBall.x, targetBall.y)); // Inverse distance
2601
2602                        if (currentScore > bestPlacementScore) {
2603                            bestPlacementScore = currentScore;
2604                            bestPlacePos = potentialPlacePos;
2605                        }
2606                    }
2607                }
2608            }
2609        }
2610    }
2611
2612placement_found:
2613    // Place the cue ball at the best found position (or default if no good spot found)
2614    cueBall->x = bestPlacePos.x;
2615    cueBall->y = bestPlacePos.y;
2616    cueBall->vx = 0;
2617    cueBall->vy = 0;
2618}
2619
2620
2621// AI finds the best shot available on the table
2622AIShotInfo AIFindBestShot() {
2623    AIShotInfo bestShotOverall = { false };
2624    Ball* cueBall = GetCueBall();
2625    if (!cueBall) return bestShotOverall;
2626    // Ensure cue ball position is up-to-date if AI just placed it
2627    // (AIPlaceCueBall should have already set cueBall->x, cueBall->y)
2628
2629    // Determine target ball type for AI (Player 2)
2630    BallType targetType = player2Info.assignedType;
2631    bool canTargetAny = false; // Can AI hit any ball (e.g., after break, before assignment)?
2632    if (targetType == BallType::NONE) {
2633        // If colors not assigned, AI aims to pocket *something* (usually lowest numbered ball legally)
2634        // Or, more simply, treat any ball as a potential target to make *a* pocket
2635        canTargetAny = true; // Simplification: allow targeting any non-8 ball.
2636        // A better rule is hit lowest numbered ball first on break follow-up.
2637    }
2638
2639    // Check if AI needs to shoot the 8-ball
2640    bool target8Ball = (!canTargetAny && targetType != BallType::NONE && player2Info.ballsPocketedCount >= 7);
2641
2642
2643    // Iterate through all potential target balls
2644    for (auto& potentialTarget : balls) {
2645        if (potentialTarget.isPocketed || potentialTarget.id == 0) continue; // Skip pocketed and cue ball
2646
2647        // Check if this ball is a valid target
2648        bool isValidTarget = false;
2649        if (target8Ball) {
2650            isValidTarget = (potentialTarget.id == 8);
2651        }
2652        else if (canTargetAny) {
2653            isValidTarget = (potentialTarget.id != 8); // Can hit any non-8 ball
2654        }
2655        else { // Colors assigned, not yet shooting 8-ball
2656            isValidTarget = (potentialTarget.type == targetType);
2657        }
2658
2659        if (!isValidTarget) continue; // Skip if not a valid target for this turn
2660
2661        // Now, check all pockets for this target ball
2662        for (int p = 0; p < 6; ++p) {
2663            AIShotInfo currentShot = EvaluateShot(&potentialTarget, p);
2664            currentShot.involves8Ball = (potentialTarget.id == 8);
2665
2666            if (currentShot.possible) {
2667                // Compare scores to find the best shot
2668                if (!bestShotOverall.possible || currentShot.score > bestShotOverall.score) {
2669                    bestShotOverall = currentShot;
2670                }
2671            }
2672        }
2673    } // End loop through potential target balls
2674
2675    // If targeting 8-ball and no shot found, or targeting own balls and no shot found,
2676    // need a safety strategy. Current simple AI just takes best found or taps cue ball.
2677
2678    return bestShotOverall;
2679}
2680
2681
2682// Evaluate a potential shot at a specific target ball towards a specific pocket
2683AIShotInfo EvaluateShot(Ball* targetBall, int pocketIndex) {
2684    AIShotInfo shotInfo;
2685    shotInfo.possible = false; // Assume not possible initially
2686    shotInfo.targetBall = targetBall;
2687    shotInfo.pocketIndex = pocketIndex;
2688
2689    Ball* cueBall = GetCueBall();
2690    if (!cueBall || !targetBall) return shotInfo;
2691
2692    // --- Define local state variables needed for legality checks ---
2693    BallType aiAssignedType = player2Info.assignedType;
2694    bool canTargetAny = (aiAssignedType == BallType::NONE); // Can AI hit any ball?
2695    bool mustTarget8Ball = (!canTargetAny && aiAssignedType != BallType::NONE && player2Info.ballsPocketedCount >= 7);
2696    // ---
2697
2698    // 1. Calculate Ghost Ball position
2699    shotInfo.ghostBallPos = CalculateGhostBallPos(targetBall, pocketIndex);
2700
2701    // 2. Calculate Angle from Cue Ball to Ghost Ball
2702    float dx = shotInfo.ghostBallPos.x - cueBall->x;
2703    float dy = shotInfo.ghostBallPos.y - cueBall->y;
2704    if (fabs(dx) < 0.01f && fabs(dy) < 0.01f) return shotInfo; // Avoid aiming at same spot
2705    shotInfo.angle = atan2f(dy, dx);
2706
2707    // Basic angle validity check (optional)
2708    if (!IsValidAIAimAngle(shotInfo.angle)) {
2709        // Maybe log this or handle edge cases
2710    }
2711
2712    // 3. Check Path: Cue Ball -> Ghost Ball Position
2713    // Use D2D1::Point2F() factory function here
2714    if (!IsPathClear(D2D1::Point2F(cueBall->x, cueBall->y), shotInfo.ghostBallPos, cueBall->id, targetBall->id)) {
2715        return shotInfo; // Path blocked
2716    }
2717
2718    // 4. Check Path: Target Ball -> Pocket
2719    // Use D2D1::Point2F() factory function here
2720    if (!IsPathClear(D2D1::Point2F(targetBall->x, targetBall->y), pocketPositions[pocketIndex], targetBall->id, -1)) {
2721        return shotInfo; // Path blocked
2722    }
2723
2724    // 5. Check First Ball Hit Legality
2725    float firstHitDistSq = -1.0f;
2726    // Use D2D1::Point2F() factory function here
2727    Ball* firstHit = FindFirstHitBall(D2D1::Point2F(cueBall->x, cueBall->y), shotInfo.angle, firstHitDistSq);
2728
2729    if (!firstHit) {
2730        return shotInfo; // AI aims but doesn't hit anything? Impossible shot.
2731    }
2732
2733    // Check if the first ball hit is the intended target ball
2734    if (firstHit->id != targetBall->id) {
2735        // Allow hitting slightly off target if it's very close to ghost ball pos
2736        float ghostDistSq = GetDistanceSq(shotInfo.ghostBallPos.x, shotInfo.ghostBallPos.y, firstHit->x, firstHit->y);
2737        // Allow a tolerance roughly half the ball radius squared
2738        if (ghostDistSq > (BALL_RADIUS * 0.7f) * (BALL_RADIUS * 0.7f)) {
2739            // First hit is significantly different from the target point.
2740            // This shot path leads to hitting the wrong ball first.
2741            return shotInfo; // Foul or unintended shot
2742        }
2743        // If first hit is not target, but very close, allow it for now (might still be foul based on type).
2744    }
2745
2746    // Check legality of the *first ball actually hit* based on game rules
2747    if (!canTargetAny) { // Colors are assigned (or should be)
2748        if (mustTarget8Ball) { // Must hit 8-ball first
2749            if (firstHit->id != 8) {
2750                // return shotInfo; // FOUL - Hitting wrong ball when aiming for 8-ball
2751                // Keep shot possible for now, rely on AIFindBestShot to prioritize legal ones
2752            }
2753        }
2754        else { // Must hit own ball type first
2755            if (firstHit->type != aiAssignedType && firstHit->id != 8) { // Allow hitting 8-ball if own type blocked? No, standard rules usually require hitting own first.
2756                // return shotInfo; // FOUL - Hitting opponent ball or 8-ball when shouldn't
2757                // Keep shot possible for now, rely on AIFindBestShot to prioritize legal ones
2758            }
2759            else if (firstHit->id == 8) {
2760                // return shotInfo; // FOUL - Hitting 8-ball when shouldn't
2761                // Keep shot possible for now
2762            }
2763        }
2764    }
2765    // (If canTargetAny is true, hitting any ball except 8 first is legal - assuming not scratching)
2766
2767
2768    // 6. Calculate Score & Power (Difficulty affects this)
2769    shotInfo.possible = true; // If we got here, the shot is geometrically possible and likely legal enough for AI to consider
2770
2771    float cueToGhostDist = GetDistance(cueBall->x, cueBall->y, shotInfo.ghostBallPos.x, shotInfo.ghostBallPos.y);
2772    float targetToPocketDist = GetDistance(targetBall->x, targetBall->y, pocketPositions[pocketIndex].x, pocketPositions[pocketIndex].y);
2773
2774    // Simple Score: Shorter shots are better, straighter shots are slightly better.
2775    float distanceScore = 1000.0f / (1.0f + cueToGhostDist + targetToPocketDist);
2776
2777    // Angle Score: Calculate cut angle
2778    // Vector Cue -> Ghost
2779    float v1x = shotInfo.ghostBallPos.x - cueBall->x;
2780    float v1y = shotInfo.ghostBallPos.y - cueBall->y;
2781    // Vector Target -> Pocket
2782    float v2x = pocketPositions[pocketIndex].x - targetBall->x;
2783    float v2y = pocketPositions[pocketIndex].y - targetBall->y;
2784    // Normalize vectors
2785    float mag1 = sqrtf(v1x * v1x + v1y * v1y);
2786    float mag2 = sqrtf(v2x * v2x + v2y * v2y);
2787    float angleScoreFactor = 0.5f; // Default if vectors are zero len
2788    if (mag1 > 0.1f && mag2 > 0.1f) {
2789        v1x /= mag1; v1y /= mag1;
2790        v2x /= mag2; v2y /= mag2;
2791        // Dot product gives cosine of angle between cue ball path and target ball path
2792        float dotProduct = v1x * v2x + v1y * v2y;
2793        // Straighter shot (dot product closer to 1) gets higher score
2794        angleScoreFactor = (1.0f + dotProduct) / 2.0f; // Map [-1, 1] to [0, 1]
2795    }
2796    angleScoreFactor = std::max(0.1f, angleScoreFactor); // Ensure some minimum score factor
2797
2798    shotInfo.score = distanceScore * angleScoreFactor;
2799
2800    // Bonus for pocketing 8-ball legally
2801    if (mustTarget8Ball && targetBall->id == 8) {
2802        shotInfo.score *= 10.0; // Strongly prefer the winning shot
2803    }
2804
2805    // Penalty for difficult cuts? Already partially handled by angleScoreFactor.
2806
2807    // 7. Calculate Power
2808    shotInfo.power = CalculateShotPower(cueToGhostDist, targetToPocketDist);
2809
2810    // 8. Add Inaccuracy based on Difficulty (same as before)
2811    float angleError = 0.0f;
2812    float powerErrorFactor = 1.0f;
2813
2814    switch (aiDifficulty) {
2815    case EASY:
2816        angleError = (float)(rand() % 100 - 50) / 1000.0f; // +/- ~3 deg
2817        powerErrorFactor = 0.8f + (float)(rand() % 40) / 100.0f; // 80-120%
2818        shotInfo.power *= 0.8f;
2819        break;
2820    case MEDIUM:
2821        angleError = (float)(rand() % 60 - 30) / 1000.0f; // +/- ~1.7 deg
2822        powerErrorFactor = 0.9f + (float)(rand() % 20) / 100.0f; // 90-110%
2823        break;
2824    case HARD:
2825        angleError = (float)(rand() % 10 - 5) / 1000.0f; // +/- ~0.3 deg
2826        powerErrorFactor = 0.98f + (float)(rand() % 4) / 100.0f; // 98-102%
2827        break;
2828    }
2829    shotInfo.angle += angleError;
2830    shotInfo.power *= powerErrorFactor;
2831    shotInfo.power = std::max(1.0f, std::min(shotInfo.power, MAX_SHOT_POWER)); // Clamp power
2832
2833    return shotInfo;
2834}
2835
2836
2837// Calculates required power (simplified)
2838float CalculateShotPower(float cueToGhostDist, float targetToPocketDist) {
2839    // Basic model: Power needed increases with total distance the balls need to travel.
2840    // Need enough power for cue ball to reach target AND target to reach pocket.
2841    float totalDist = cueToGhostDist + targetToPocketDist;
2842
2843    // Map distance to power (needs tuning)
2844    // Let's say max power is needed for longest possible shot (e.g., corner to corner ~ 1000 units)
2845    float powerRatio = std::min(1.0f, totalDist / 800.0f); // Normalize based on estimated max distance
2846
2847    float basePower = MAX_SHOT_POWER * 0.2f; // Minimum power to move balls reliably
2848    float variablePower = (MAX_SHOT_POWER * 0.8f) * powerRatio; // Scale remaining power range
2849
2850    // Harder AI could adjust based on desired cue ball travel (more power for draw/follow)
2851    return std::min(MAX_SHOT_POWER, basePower + variablePower);
2852}
2853
2854// Calculate the position the cue ball needs to hit for the target ball to go towards the pocket
2855D2D1_POINT_2F CalculateGhostBallPos(Ball* targetBall, int pocketIndex) {
2856    float targetToPocketX = pocketPositions[pocketIndex].x - targetBall->x;
2857    float targetToPocketY = pocketPositions[pocketIndex].y - targetBall->y;
2858    float dist = sqrtf(targetToPocketX * targetToPocketX + targetToPocketY * targetToPocketY);
2859
2860    if (dist < 1.0f) { // Target is basically in the pocket
2861        // Aim slightly off-center to avoid weird physics? Or directly at center?
2862        // For simplicity, return a point slightly behind center along the reverse line.
2863        return D2D1::Point2F(targetBall->x - targetToPocketX * 0.1f, targetBall->y - targetToPocketY * 0.1f);
2864    }
2865
2866    // Normalize direction vector from target to pocket
2867    float nx = targetToPocketX / dist;
2868    float ny = targetToPocketY / dist;
2869
2870    // Ghost ball position is diameter distance *behind* the target ball along this line
2871    float ghostX = targetBall->x - nx * (BALL_RADIUS * 2.0f);
2872    float ghostY = targetBall->y - ny * (BALL_RADIUS * 2.0f);
2873
2874    return D2D1::Point2F(ghostX, ghostY);
2875}
2876
2877// Checks if line segment is clear of obstructing balls
2878bool IsPathClear(D2D1_POINT_2F start, D2D1_POINT_2F end, int ignoredBallId1, int ignoredBallId2) {
2879    float dx = end.x - start.x;
2880    float dy = end.y - start.y;
2881    float segmentLenSq = dx * dx + dy * dy;
2882
2883    if (segmentLenSq < 0.01f) return true; // Start and end are same point
2884
2885    for (const auto& ball : balls) {
2886        if (ball.isPocketed) continue;
2887        if (ball.id == ignoredBallId1) continue;
2888        if (ball.id == ignoredBallId2) continue;
2889
2890        // Check distance from ball center to the line segment
2891        float ballToStartX = ball.x - start.x;
2892        float ballToStartY = ball.y - start.y;
2893
2894        // Project ball center onto the line defined by the segment
2895        float dot = (ballToStartX * dx + ballToStartY * dy) / segmentLenSq;
2896
2897        D2D1_POINT_2F closestPointOnLine;
2898        if (dot < 0) { // Closest point is start point
2899            closestPointOnLine = start;
2900        }
2901        else if (dot > 1) { // Closest point is end point
2902            closestPointOnLine = end;
2903        }
2904        else { // Closest point is along the segment
2905            closestPointOnLine = D2D1::Point2F(start.x + dot * dx, start.y + dot * dy);
2906        }
2907
2908        // Check if the closest point is within collision distance (ball radius + path radius)
2909        if (GetDistanceSq(ball.x, ball.y, closestPointOnLine.x, closestPointOnLine.y) < (BALL_RADIUS * BALL_RADIUS)) {
2910            // Consider slightly wider path check? Maybe BALL_RADIUS * 1.1f?
2911            // if (GetDistanceSq(ball.x, ball.y, closestPointOnLine.x, closestPointOnLine.y) < (BALL_RADIUS * 1.1f)*(BALL_RADIUS*1.1f)) {
2912            return false; // Path is blocked
2913        }
2914    }
2915    return true; // No obstructions found
2916}
2917
2918// Finds the first ball hit along a path (simplified)
2919Ball* FindFirstHitBall(D2D1_POINT_2F start, float angle, float& hitDistSq) {
2920    Ball* hitBall = nullptr;
2921    hitDistSq = -1.0f; // Initialize hit distance squared
2922    float minCollisionDistSq = -1.0f;
2923
2924    float cosA = cosf(angle);
2925    float sinA = sinf(angle);
2926
2927    for (auto& ball : balls) {
2928        if (ball.isPocketed || ball.id == 0) continue; // Skip cue ball and pocketed
2929
2930        float dx = ball.x - start.x;
2931        float dy = ball.y - start.y;
2932
2933        // Project vector from start->ball onto the aim direction vector
2934        float dot = dx * cosA + dy * sinA;
2935
2936        if (dot > 0) { // Ball is generally in front
2937            // Find closest point on aim line to the ball's center
2938            float closestPointX = start.x + dot * cosA;
2939            float closestPointY = start.y + dot * sinA;
2940            float distSq = GetDistanceSq(ball.x, ball.y, closestPointX, closestPointY);
2941
2942            // Check if the aim line passes within the ball's radius
2943            if (distSq < (BALL_RADIUS * BALL_RADIUS)) {
2944                // Calculate distance from start to the collision point on the ball's circumference
2945                float backDist = sqrtf(std::max(0.f, BALL_RADIUS * BALL_RADIUS - distSq));
2946                float collisionDist = dot - backDist; // Distance along aim line to collision
2947
2948                if (collisionDist > 0) { // Ensure collision is in front
2949                    float collisionDistSq = collisionDist * collisionDist;
2950                    if (hitBall == nullptr || collisionDistSq < minCollisionDistSq) {
2951                        minCollisionDistSq = collisionDistSq;
2952                        hitBall = &ball; // Found a closer hit ball
2953                    }
2954                }
2955            }
2956        }
2957    }
2958    hitDistSq = minCollisionDistSq; // Return distance squared to the first hit
2959    return hitBall;
2960}
2961
2962// Basic check for reasonable AI aim angles (optional)
2963bool IsValidAIAimAngle(float angle) {
2964    // Placeholder - could check for NaN or infinity if calculations go wrong
2965    return isfinite(angle);
2966}
2967
2968//midi func = start
2969void PlayMidiInBackground(HWND hwnd, const TCHAR* midiPath) {
2970    while (isMusicPlaying) {
2971        MCI_OPEN_PARMS mciOpen = { 0 };
2972        mciOpen.lpstrDeviceType = TEXT("sequencer");
2973        mciOpen.lpstrElementName = midiPath;
2974
2975        if (mciSendCommand(0, MCI_OPEN, MCI_OPEN_TYPE | MCI_OPEN_ELEMENT, (DWORD_PTR)&mciOpen) == 0) {
2976            midiDeviceID = mciOpen.wDeviceID;
2977
2978            MCI_PLAY_PARMS mciPlay = { 0 };
2979            mciSendCommand(midiDeviceID, MCI_PLAY, 0, (DWORD_PTR)&mciPlay);
2980
2981            // Wait for playback to complete
2982            MCI_STATUS_PARMS mciStatus = { 0 };
2983            mciStatus.dwItem = MCI_STATUS_MODE;
2984
2985            do {
2986                mciSendCommand(midiDeviceID, MCI_STATUS, MCI_STATUS_ITEM, (DWORD_PTR)&mciStatus);
2987                Sleep(100); // adjust as needed
2988            } while (mciStatus.dwReturn == MCI_MODE_PLAY && isMusicPlaying);
2989
2990            mciSendCommand(midiDeviceID, MCI_CLOSE, 0, NULL);
2991            midiDeviceID = 0;
2992        }
2993    }
2994}
2995
2996void StartMidi(HWND hwnd, const TCHAR* midiPath) {
2997    if (isMusicPlaying) {
2998        StopMidi();
2999    }
3000    isMusicPlaying = true;
3001    musicThread = std::thread(PlayMidiInBackground, hwnd, midiPath);
3002}
3003
3004void StopMidi() {
3005    if (isMusicPlaying) {
3006        isMusicPlaying = false;
3007        if (musicThread.joinable()) musicThread.join();
3008        if (midiDeviceID != 0) {
3009            mciSendCommand(midiDeviceID, MCI_CLOSE, 0, NULL);
3010            midiDeviceID = 0;
3011        }
3012    }
3013}
3014
3015/*void PlayGameMusic(HWND hwnd) {
3016    // Stop any existing playback
3017    if (isMusicPlaying) {
3018        isMusicPlaying = false;
3019        if (musicThread.joinable()) {
3020            musicThread.join();
3021        }
3022        if (midiDeviceID != 0) {
3023            mciSendCommand(midiDeviceID, MCI_CLOSE, 0, NULL);
3024            midiDeviceID = 0;
3025        }
3026    }
3027
3028    // Get the path of the executable
3029    TCHAR exePath[MAX_PATH];
3030    GetModuleFileName(NULL, exePath, MAX_PATH);
3031
3032    // Extract the directory path
3033    TCHAR* lastBackslash = _tcsrchr(exePath, '\\');
3034    if (lastBackslash != NULL) {
3035        *(lastBackslash + 1) = '\0';
3036    }
3037
3038    // Construct the full path to the MIDI file
3039    static TCHAR midiPath[MAX_PATH];
3040    _tcscpy_s(midiPath, MAX_PATH, exePath);
3041    _tcscat_s(midiPath, MAX_PATH, TEXT("BSQ.MID"));
3042
3043    // Start the background playback
3044    isMusicPlaying = true;
3045    musicThread = std::thread(PlayMidiInBackground, hwnd, midiPath);
3046}*/
3047//midi func = end
3048
3049// --- Drawing Functions ---
3050
3051void OnPaint() {
3052    HRESULT hr = CreateDeviceResources(); // Ensure resources are valid
3053
3054    if (SUCCEEDED(hr)) {
3055        pRenderTarget->BeginDraw();
3056        DrawScene(pRenderTarget); // Pass render target
3057        hr = pRenderTarget->EndDraw();
3058
3059        if (hr == D2DERR_RECREATE_TARGET) {
3060            DiscardDeviceResources();
3061            // Optionally request another paint message: InvalidateRect(hwndMain, NULL, FALSE);
3062            // But the timer loop will trigger redraw anyway.
3063        }
3064    }
3065    // If CreateDeviceResources failed, EndDraw might not be called.
3066    // Consider handling this more robustly if needed.
3067}
3068
3069void DrawScene(ID2D1RenderTarget* pRT) {
3070    if (!pRT) return;
3071
3072    //pRT->Clear(D2D1::ColorF(D2D1::ColorF::LightGray)); // Background color
3073    // Set background color to #ffffcd (RGB: 255, 255, 205)
3074    pRT->Clear(D2D1::ColorF(0.3686f, 0.5333f, 0.3882f)); // Clear with light yellow background NEWCOLOR 1.0f, 1.0f, 0.803f => (0.3686f, 0.5333f, 0.3882f)
3075    //pRT->Clear(D2D1::ColorF(1.0f, 1.0f, 0.803f)); // Clear with light yellow background NEWCOLOR 1.0f, 1.0f, 0.803f => (0.3686f, 0.5333f, 0.3882f)
3076
3077    DrawTable(pRT, pFactory);
3078    DrawPocketSelectionIndicator(pRT); // Draw arrow over selected/called pocket
3079    DrawBalls(pRT);
3080    DrawAimingAids(pRT); // Includes cue stick if aiming
3081    DrawUI(pRT);
3082    DrawPowerMeter(pRT);
3083    DrawSpinIndicator(pRT);
3084    DrawPocketedBallsIndicator(pRT);
3085    DrawBallInHandIndicator(pRT); // Draw cue ball ghost if placing
3086
3087     // Draw Game Over Message
3088    if (currentGameState == GAME_OVER && pTextFormat) {
3089        ID2D1SolidColorBrush* pBrush = nullptr;
3090        pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), &pBrush);
3091        if (pBrush) {
3092            D2D1_RECT_F layoutRect = D2D1::RectF(TABLE_LEFT, TABLE_TOP + TABLE_HEIGHT / 2 - 30, TABLE_RIGHT, TABLE_TOP + TABLE_HEIGHT / 2 + 30);
3093            pRT->DrawText(
3094                gameOverMessage.c_str(),
3095                (UINT32)gameOverMessage.length(),
3096                pTextFormat, // Use large format maybe?
3097                &layoutRect,
3098                pBrush
3099            );
3100            SafeRelease(&pBrush);
3101        }
3102    }
3103
3104}
3105
3106void DrawTable(ID2D1RenderTarget* pRT, ID2D1Factory* pFactory) {
3107    ID2D1SolidColorBrush* pBrush = nullptr;
3108
3109    // === Draw Full Orange Frame (Table Border) ===
3110    ID2D1SolidColorBrush* pFrameBrush = nullptr;
3111    pRT->CreateSolidColorBrush(D2D1::ColorF(0.9157f, 0.6157f, 0.2000f), &pFrameBrush); //NEWCOLOR ::Orange (no brackets) => (0.9157, 0.6157, 0.2000)
3112    //pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Orange), &pFrameBrush); //NEWCOLOR ::Orange (no brackets) => (0.9157, 0.6157, 0.2000)
3113    if (pFrameBrush) {
3114        D2D1_RECT_F outerRect = D2D1::RectF(
3115            TABLE_LEFT - CUSHION_THICKNESS,
3116            TABLE_TOP - CUSHION_THICKNESS,
3117            TABLE_RIGHT + CUSHION_THICKNESS,
3118            TABLE_BOTTOM + CUSHION_THICKNESS
3119        );
3120        pRT->FillRectangle(&outerRect, pFrameBrush);
3121        SafeRelease(&pFrameBrush);
3122    }
3123
3124    // Draw Table Bed (Green Felt)
3125    pRT->CreateSolidColorBrush(TABLE_COLOR, &pBrush);
3126    if (!pBrush) return;
3127    D2D1_RECT_F tableRect = D2D1::RectF(TABLE_LEFT, TABLE_TOP, TABLE_RIGHT, TABLE_BOTTOM);
3128    pRT->FillRectangle(&tableRect, pBrush);
3129    SafeRelease(&pBrush);
3130
3131    // Draw Cushions (Red Border)
3132    pRT->CreateSolidColorBrush(CUSHION_COLOR, &pBrush);
3133    if (!pBrush) return;
3134    // Top Cushion (split by middle pocket)
3135    pRT->FillRectangle(D2D1::RectF(TABLE_LEFT + HOLE_VISUAL_RADIUS, TABLE_TOP - CUSHION_THICKNESS, TABLE_LEFT + TABLE_WIDTH / 2.f - HOLE_VISUAL_RADIUS, TABLE_TOP), pBrush);
3136    pRT->FillRectangle(D2D1::RectF(TABLE_LEFT + TABLE_WIDTH / 2.f + HOLE_VISUAL_RADIUS, TABLE_TOP - CUSHION_THICKNESS, TABLE_RIGHT - HOLE_VISUAL_RADIUS, TABLE_TOP), pBrush);
3137    // Bottom Cushion (split by middle pocket)
3138    pRT->FillRectangle(D2D1::RectF(TABLE_LEFT + HOLE_VISUAL_RADIUS, TABLE_BOTTOM, TABLE_LEFT + TABLE_WIDTH / 2.f - HOLE_VISUAL_RADIUS, TABLE_BOTTOM + CUSHION_THICKNESS), pBrush);
3139    pRT->FillRectangle(D2D1::RectF(TABLE_LEFT + TABLE_WIDTH / 2.f + HOLE_VISUAL_RADIUS, TABLE_BOTTOM, TABLE_RIGHT - HOLE_VISUAL_RADIUS, TABLE_BOTTOM + CUSHION_THICKNESS), pBrush);
3140    // Left Cushion
3141    pRT->FillRectangle(D2D1::RectF(TABLE_LEFT - CUSHION_THICKNESS, TABLE_TOP + HOLE_VISUAL_RADIUS, TABLE_LEFT, TABLE_BOTTOM - HOLE_VISUAL_RADIUS), pBrush);
3142    // Right Cushion
3143    pRT->FillRectangle(D2D1::RectF(TABLE_RIGHT, TABLE_TOP + HOLE_VISUAL_RADIUS, TABLE_RIGHT + CUSHION_THICKNESS, TABLE_BOTTOM - HOLE_VISUAL_RADIUS), pBrush);
3144    SafeRelease(&pBrush);
3145
3146
3147    // Draw Pockets (Black Circles)
3148    pRT->CreateSolidColorBrush(POCKET_COLOR, &pBrush);
3149    if (!pBrush) return;
3150    for (int i = 0; i < 6; ++i) {
3151        D2D1_ELLIPSE ellipse = D2D1::Ellipse(pocketPositions[i], HOLE_VISUAL_RADIUS, HOLE_VISUAL_RADIUS);
3152        pRT->FillEllipse(&ellipse, pBrush);
3153    }
3154    SafeRelease(&pBrush);
3155
3156    // Draw Headstring Line (White)
3157    pRT->CreateSolidColorBrush(D2D1::ColorF(0.4235f, 0.5647f, 0.1765f, 1.0f), &pBrush); // NEWCOLOR ::White => (0.2784, 0.4549, 0.1843)
3158    //pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White, 0.5f), &pBrush); // NEWCOLOR ::White => (0.2784, 0.4549, 0.1843)
3159    if (!pBrush) return;
3160    pRT->DrawLine(
3161        D2D1::Point2F(HEADSTRING_X, TABLE_TOP),
3162        D2D1::Point2F(HEADSTRING_X, TABLE_BOTTOM),
3163        pBrush,
3164        1.0f // Line thickness
3165    );
3166    SafeRelease(&pBrush);
3167
3168    // Draw Semicircle facing West (flat side East)
3169    // Draw Semicircle facing East (curved side on the East, flat side on the West)
3170    ID2D1PathGeometry* pGeometry = nullptr;
3171    HRESULT hr = pFactory->CreatePathGeometry(&pGeometry);
3172    if (SUCCEEDED(hr) && pGeometry)
3173    {
3174        ID2D1GeometrySink* pSink = nullptr;
3175        hr = pGeometry->Open(&pSink);
3176        if (SUCCEEDED(hr) && pSink)
3177        {
3178            float radius = 60.0f; // Radius for the semicircle
3179            D2D1_POINT_2F center = D2D1::Point2F(HEADSTRING_X, (TABLE_TOP + TABLE_BOTTOM) / 2.0f);
3180
3181            // For a semicircle facing East (curved side on the East), use the top and bottom points.
3182            D2D1_POINT_2F startPoint = D2D1::Point2F(center.x, center.y - radius); // Top point
3183
3184            pSink->BeginFigure(startPoint, D2D1_FIGURE_BEGIN_HOLLOW);
3185
3186            D2D1_ARC_SEGMENT arc = {};
3187            arc.point = D2D1::Point2F(center.x, center.y + radius); // Bottom point
3188            arc.size = D2D1::SizeF(radius, radius);
3189            arc.rotationAngle = 0.0f;
3190            // Use the correct identifier with the extra underscore:
3191            arc.sweepDirection = D2D1_SWEEP_DIRECTION_COUNTER_CLOCKWISE;
3192            arc.arcSize = D2D1_ARC_SIZE_SMALL;
3193
3194            pSink->AddArc(&arc);
3195            pSink->EndFigure(D2D1_FIGURE_END_OPEN);
3196            pSink->Close();
3197            SafeRelease(&pSink);
3198
3199            ID2D1SolidColorBrush* pArcBrush = nullptr;
3200            //pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White, 0.3f), &pArcBrush);
3201            pRT->CreateSolidColorBrush(D2D1::ColorF(0.4235f, 0.5647f, 0.1765f, 1.0f), &pArcBrush);
3202            if (pArcBrush)
3203            {
3204                pRT->DrawGeometry(pGeometry, pArcBrush, 1.5f);
3205                SafeRelease(&pArcBrush);
3206            }
3207        }
3208        SafeRelease(&pGeometry);
3209    }
3210
3211
3212
3213
3214}
3215
3216
3217void DrawBalls(ID2D1RenderTarget* pRT) {
3218    ID2D1SolidColorBrush* pBrush = nullptr;
3219    ID2D1SolidColorBrush* pStripeBrush = nullptr; // For stripe pattern
3220
3221    pRT->CreateSolidColorBrush(D2D1::ColorF(0, 0, 0), &pBrush); // Placeholder
3222    pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), &pStripeBrush);
3223
3224    if (!pBrush || !pStripeBrush) {
3225        SafeRelease(&pBrush);
3226        SafeRelease(&pStripeBrush);
3227        return;
3228    }
3229
3230
3231    for (size_t i = 0; i < balls.size(); ++i) {
3232        const Ball& b = balls[i];
3233        if (!b.isPocketed) {
3234            D2D1_ELLIPSE ellipse = D2D1::Ellipse(D2D1::Point2F(b.x, b.y), BALL_RADIUS, BALL_RADIUS);
3235
3236            // Set main ball color
3237            pBrush->SetColor(b.color);
3238            pRT->FillEllipse(&ellipse, pBrush);
3239
3240            // Draw Stripe if applicable
3241            if (b.type == BallType::STRIPE) {
3242                // Draw a white band across the middle (simplified stripe)
3243                D2D1_RECT_F stripeRect = D2D1::RectF(b.x - BALL_RADIUS, b.y - BALL_RADIUS * 0.4f, b.x + BALL_RADIUS, b.y + BALL_RADIUS * 0.4f);
3244                // Need to clip this rectangle to the ellipse bounds - complex!
3245                // Alternative: Draw two colored arcs leaving a white band.
3246                // Simplest: Draw a white circle inside, slightly smaller.
3247                D2D1_ELLIPSE innerEllipse = D2D1::Ellipse(D2D1::Point2F(b.x, b.y), BALL_RADIUS * 0.6f, BALL_RADIUS * 0.6f);
3248                pRT->FillEllipse(innerEllipse, pStripeBrush); // White center part
3249                pBrush->SetColor(b.color); // Set back to stripe color
3250                pRT->FillEllipse(innerEllipse, pBrush); // Fill again, leaving a ring - No, this isn't right.
3251
3252                // Let's try drawing a thick white line across
3253                // This doesn't look great. Just drawing solid red for stripes for now.
3254            }
3255
3256            // Draw Number (Optional - requires more complex text layout or pre-rendered textures)
3257            // if (b.id != 0 && pTextFormat) {
3258            //     std::wstring numStr = std::to_wstring(b.id);
3259            //     D2D1_RECT_F textRect = D2D1::RectF(b.x - BALL_RADIUS, b.y - BALL_RADIUS, b.x + BALL_RADIUS, b.y + BALL_RADIUS);
3260            //     ID2D1SolidColorBrush* pNumBrush = nullptr;
3261            //     D2D1_COLOR_F numCol = (b.type == BallType::SOLID || b.id == 8) ? D2D1::ColorF(D2D1::ColorF::Black) : D2D1::ColorF(D2D1::ColorF::White);
3262            //     pRT->CreateSolidColorBrush(numCol, &pNumBrush);
3263            //     // Create a smaller text format...
3264            //     // pRT->DrawText(numStr.c_str(), numStr.length(), pSmallTextFormat, &textRect, pNumBrush);
3265            //     SafeRelease(&pNumBrush);
3266            // }
3267        }
3268    }
3269
3270    SafeRelease(&pBrush);
3271    SafeRelease(&pStripeBrush);
3272}
3273
3274
3275void DrawAimingAids(ID2D1RenderTarget* pRT) {
3276    // Condition check at start (Unchanged)
3277    //if (currentGameState != PLAYER1_TURN && currentGameState != PLAYER2_TURN &&
3278        //currentGameState != BREAKING && currentGameState != AIMING)
3279    //{
3280        //return;
3281    //}
3282        // NEW Condition: Allow drawing if it's a human player's active turn/aiming/breaking,
3283    // OR if it's AI's turn and it's in AI_THINKING state (calculating) or BREAKING (aiming break).
3284    bool isHumanInteracting = (!isPlayer2AI || currentPlayer == 1) &&
3285        (currentGameState == PLAYER1_TURN || currentGameState == PLAYER2_TURN ||
3286            currentGameState == BREAKING || currentGameState == AIMING);
3287    // AI_THINKING state is when AI calculates shot. AIMakeDecision sets cueAngle/shotPower.
3288    // Also include BREAKING state if it's AI's turn and isOpeningBreakShot for break aim visualization.
3289        // NEW Condition: AI is displaying its aim
3290    bool isAiVisualizingShot = (isPlayer2AI && currentPlayer == 2 &&
3291        currentGameState == AI_THINKING && aiIsDisplayingAim);
3292
3293    if (!isHumanInteracting && !(isAiVisualizingShot || (currentGameState == AI_THINKING && aiIsDisplayingAim))) {
3294        return;
3295    }
3296
3297    Ball* cueBall = GetCueBall();
3298    if (!cueBall || cueBall->isPocketed) return; // Don't draw if cue ball is gone
3299
3300    ID2D1SolidColorBrush* pBrush = nullptr;
3301    ID2D1SolidColorBrush* pGhostBrush = nullptr;
3302    ID2D1StrokeStyle* pDashedStyle = nullptr;
3303    ID2D1SolidColorBrush* pCueBrush = nullptr;
3304    ID2D1SolidColorBrush* pReflectBrush = nullptr; // Brush for reflection line
3305
3306    // Ensure render target is valid
3307    if (!pRT) return;
3308
3309    // Create Brushes and Styles (check for failures)
3310    HRESULT hr;
3311    hr = pRT->CreateSolidColorBrush(AIM_LINE_COLOR, &pBrush);
3312    if FAILED(hr) { SafeRelease(&pBrush); return; }
3313    hr = pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White, 0.5f), &pGhostBrush);
3314    if FAILED(hr) { SafeRelease(&pBrush); SafeRelease(&pGhostBrush); return; }
3315    hr = pRT->CreateSolidColorBrush(D2D1::ColorF(0.6f, 0.4f, 0.2f), &pCueBrush);
3316    if FAILED(hr) { SafeRelease(&pBrush); SafeRelease(&pGhostBrush); SafeRelease(&pCueBrush); return; }
3317    // Create reflection brush (e.g., lighter shade or different color)
3318    hr = pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::LightCyan, 0.6f), &pReflectBrush);
3319    if FAILED(hr) { SafeRelease(&pBrush); SafeRelease(&pGhostBrush); SafeRelease(&pCueBrush); SafeRelease(&pReflectBrush); return; }
3320    // Create a Cyan brush for primary and secondary lines //orig(75.0f / 255.0f, 0.0f, 130.0f / 255.0f);indigoColor
3321    D2D1::ColorF cyanColor(0.0, 255.0, 255.0, 255.0f);
3322    ID2D1SolidColorBrush* pCyanBrush = nullptr;
3323    hr = pRT->CreateSolidColorBrush(cyanColor, &pCyanBrush);
3324    if (FAILED(hr)) {
3325        SafeRelease(&pCyanBrush);
3326        // handle error if needed
3327    }
3328    // Create a Purple brush for primary and secondary lines
3329    D2D1::ColorF purpleColor(255.0f, 0.0f, 255.0f, 255.0f);
3330    ID2D1SolidColorBrush* pPurpleBrush = nullptr;
3331    hr = pRT->CreateSolidColorBrush(purpleColor, &pPurpleBrush);
3332    if (FAILED(hr)) {
3333        SafeRelease(&pPurpleBrush);
3334        // handle error if needed
3335    }
3336
3337    if (pFactory) {
3338        D2D1_STROKE_STYLE_PROPERTIES strokeProps = D2D1::StrokeStyleProperties();
3339        strokeProps.dashStyle = D2D1_DASH_STYLE_DASH;
3340        hr = pFactory->CreateStrokeStyle(&strokeProps, nullptr, 0, &pDashedStyle);
3341        if FAILED(hr) { pDashedStyle = nullptr; }
3342    }
3343
3344
3345    // --- Cue Stick Drawing (Unchanged from previous fix) ---
3346    const float baseStickLength = 150.0f;
3347    const float baseStickThickness = 4.0f;
3348    float stickLength = baseStickLength * 1.4f;
3349    float stickThickness = baseStickThickness * 1.5f;
3350    float stickAngle = cueAngle + PI;
3351    float powerOffset = 0.0f;
3352    //if (isAiming && (currentGameState == AIMING || currentGameState == BREAKING)) {
3353        // Show power offset if human is aiming/dragging, or if AI is preparing its shot (AI_THINKING or AI Break)
3354    if ((isAiming && (currentGameState == AIMING || currentGameState == BREAKING)) || isAiVisualizingShot) { // Use the new condition
3355        powerOffset = shotPower * 5.0f;
3356    }
3357    D2D1_POINT_2F cueStickEnd = D2D1::Point2F(cueBall->x + cosf(stickAngle) * (stickLength + powerOffset), cueBall->y + sinf(stickAngle) * (stickLength + powerOffset));
3358    D2D1_POINT_2F cueStickTip = D2D1::Point2F(cueBall->x + cosf(stickAngle) * (powerOffset + 5.0f), cueBall->y + sinf(stickAngle) * (powerOffset + 5.0f));
3359    pRT->DrawLine(cueStickTip, cueStickEnd, pCueBrush, stickThickness);
3360
3361
3362    // --- Projection Line Calculation ---
3363    float cosA = cosf(cueAngle);
3364    float sinA = sinf(cueAngle);
3365    float rayLength = TABLE_WIDTH + TABLE_HEIGHT; // Ensure ray is long enough
3366    D2D1_POINT_2F rayStart = D2D1::Point2F(cueBall->x, cueBall->y);
3367    D2D1_POINT_2F rayEnd = D2D1::Point2F(rayStart.x + cosA * rayLength, rayStart.y + sinA * rayLength);
3368
3369    // Find the first ball hit by the aiming ray
3370    Ball* hitBall = nullptr;
3371    float firstHitDistSq = -1.0f;
3372    D2D1_POINT_2F ballCollisionPoint = { 0, 0 }; // Point on target ball circumference
3373    D2D1_POINT_2F ghostBallPosForHit = { 0, 0 }; // Ghost ball pos for the hit ball
3374
3375    hitBall = FindFirstHitBall(rayStart, cueAngle, firstHitDistSq);
3376    if (hitBall) {
3377        // Calculate the point on the target ball's circumference
3378        float collisionDist = sqrtf(firstHitDistSq);
3379        ballCollisionPoint = D2D1::Point2F(rayStart.x + cosA * collisionDist, rayStart.y + sinA * collisionDist);
3380        // Calculate ghost ball position for this specific hit (used for projection consistency)
3381        ghostBallPosForHit = D2D1::Point2F(hitBall->x - cosA * BALL_RADIUS, hitBall->y - sinA * BALL_RADIUS); // Approx.
3382    }
3383
3384    // Find the first rail hit by the aiming ray
3385    D2D1_POINT_2F railHitPoint = rayEnd; // Default to far end if no rail hit
3386    float minRailDistSq = rayLength * rayLength;
3387    int hitRailIndex = -1; // 0:Left, 1:Right, 2:Top, 3:Bottom
3388
3389    // Define table edge segments for intersection checks
3390    D2D1_POINT_2F topLeft = D2D1::Point2F(TABLE_LEFT, TABLE_TOP);
3391    D2D1_POINT_2F topRight = D2D1::Point2F(TABLE_RIGHT, TABLE_TOP);
3392    D2D1_POINT_2F bottomLeft = D2D1::Point2F(TABLE_LEFT, TABLE_BOTTOM);
3393    D2D1_POINT_2F bottomRight = D2D1::Point2F(TABLE_RIGHT, TABLE_BOTTOM);
3394
3395    D2D1_POINT_2F currentIntersection;
3396
3397    // Check Left Rail
3398    if (LineSegmentIntersection(rayStart, rayEnd, topLeft, bottomLeft, currentIntersection)) {
3399        float distSq = GetDistanceSq(rayStart.x, rayStart.y, currentIntersection.x, currentIntersection.y);
3400        if (distSq < minRailDistSq) { minRailDistSq = distSq; railHitPoint = currentIntersection; hitRailIndex = 0; }
3401    }
3402    // Check Right Rail
3403    if (LineSegmentIntersection(rayStart, rayEnd, topRight, bottomRight, currentIntersection)) {
3404        float distSq = GetDistanceSq(rayStart.x, rayStart.y, currentIntersection.x, currentIntersection.y);
3405        if (distSq < minRailDistSq) { minRailDistSq = distSq; railHitPoint = currentIntersection; hitRailIndex = 1; }
3406    }
3407    // Check Top Rail
3408    if (LineSegmentIntersection(rayStart, rayEnd, topLeft, topRight, currentIntersection)) {
3409        float distSq = GetDistanceSq(rayStart.x, rayStart.y, currentIntersection.x, currentIntersection.y);
3410        if (distSq < minRailDistSq) { minRailDistSq = distSq; railHitPoint = currentIntersection; hitRailIndex = 2; }
3411    }
3412    // Check Bottom Rail
3413    if (LineSegmentIntersection(rayStart, rayEnd, bottomLeft, bottomRight, currentIntersection)) {
3414        float distSq = GetDistanceSq(rayStart.x, rayStart.y, currentIntersection.x, currentIntersection.y);
3415        if (distSq < minRailDistSq) { minRailDistSq = distSq; railHitPoint = currentIntersection; hitRailIndex = 3; }
3416    }
3417
3418
3419    // --- Determine final aim line end point ---
3420    D2D1_POINT_2F finalLineEnd = railHitPoint; // Assume rail hit first
3421    bool aimingAtRail = true;
3422
3423    if (hitBall && firstHitDistSq < minRailDistSq) {
3424        // Ball collision is closer than rail collision
3425        finalLineEnd = ballCollisionPoint; // End line at the point of contact on the ball
3426        aimingAtRail = false;
3427    }
3428
3429    // --- Draw Primary Aiming Line ---
3430    pRT->DrawLine(rayStart, finalLineEnd, pBrush, 1.0f, pDashedStyle ? pDashedStyle : NULL);
3431
3432    // --- Draw Target Circle/Indicator ---
3433    D2D1_ELLIPSE targetCircle = D2D1::Ellipse(finalLineEnd, BALL_RADIUS / 2.0f, BALL_RADIUS / 2.0f);
3434    pRT->DrawEllipse(&targetCircle, pBrush, 1.0f);
3435
3436    // --- Draw Projection/Reflection Lines ---
3437    if (!aimingAtRail && hitBall) {
3438        // Aiming at a ball: Draw Ghost Cue Ball and Target Ball Projection
3439        D2D1_ELLIPSE ghostCue = D2D1::Ellipse(ballCollisionPoint, BALL_RADIUS, BALL_RADIUS); // Ghost ball at contact point
3440        pRT->DrawEllipse(ghostCue, pGhostBrush, 1.0f, pDashedStyle ? pDashedStyle : NULL);
3441
3442        // Calculate target ball projection based on impact line (cue collision point -> target center)
3443        float targetProjectionAngle = atan2f(hitBall->y - ballCollisionPoint.y, hitBall->x - ballCollisionPoint.x);
3444        // Clamp angle calculation if distance is tiny
3445        if (GetDistanceSq(hitBall->x, hitBall->y, ballCollisionPoint.x, ballCollisionPoint.y) < 1.0f) {
3446            targetProjectionAngle = cueAngle; // Fallback if overlapping
3447        }
3448
3449        D2D1_POINT_2F targetStartPoint = D2D1::Point2F(hitBall->x, hitBall->y);
3450        D2D1_POINT_2F targetProjectionEnd = D2D1::Point2F(
3451            hitBall->x + cosf(targetProjectionAngle) * 50.0f, // Projection length 50 units
3452            hitBall->y + sinf(targetProjectionAngle) * 50.0f
3453        );
3454        // Draw solid line for target projection
3455        //pRT->DrawLine(targetStartPoint, targetProjectionEnd, pBrush, 1.0f);
3456
3457    //new code start
3458
3459                // Dual trajectory with edge-aware contact simulation
3460        D2D1_POINT_2F dir = {
3461            targetProjectionEnd.x - targetStartPoint.x,
3462            targetProjectionEnd.y - targetStartPoint.y
3463        };
3464        float dirLen = sqrtf(dir.x * dir.x + dir.y * dir.y);
3465        dir.x /= dirLen;
3466        dir.y /= dirLen;
3467
3468        D2D1_POINT_2F perp = { -dir.y, dir.x };
3469
3470        // Approximate cue ball center by reversing from tip
3471        D2D1_POINT_2F cueBallCenterForGhostHit = { // Renamed for clarity if you use it elsewhere
3472            targetStartPoint.x - dir.x * BALL_RADIUS,
3473            targetStartPoint.y - dir.y * BALL_RADIUS
3474        };
3475
3476        // REAL contact-ball center - use your physics object's center:
3477        // (replace 'objectBallPos' with whatever you actually call it)
3478        // (targetStartPoint is already hitBall->x, hitBall->y)
3479        D2D1_POINT_2F contactBallCenter = targetStartPoint; // Corrected: Use the object ball's actual center
3480        //D2D1_POINT_2F contactBallCenter = D2D1::Point2F(hitBall->x, hitBall->y);
3481
3482       // The 'offset' calculation below uses 'cueBallCenterForGhostHit' (originally 'cueBallCenter').
3483       // This will result in 'offset' being 0 because 'cueBallCenterForGhostHit' is defined
3484       // such that (targetStartPoint - cueBallCenterForGhostHit) is parallel to 'dir',
3485       // and 'perp' is perpendicular to 'dir'.
3486       // Consider Change 2 if this 'offset' is not behaving as intended for the secondary line.
3487        /*float offset = ((targetStartPoint.x - cueBallCenterForGhostHit.x) * perp.x +
3488            (targetStartPoint.y - cueBallCenterForGhostHit.y) * perp.y);*/
3489            /*float offset = ((targetStartPoint.x - cueBallCenter.x) * perp.x +
3490                (targetStartPoint.y - cueBallCenter.y) * perp.y);
3491            float absOffset = fabsf(offset);
3492            float side = (offset >= 0 ? 1.0f : -1.0f);*/
3493
3494            // Use actual cue ball center for offset calculation if 'offset' is meant to quantify the cut
3495        D2D1_POINT_2F actualCueBallPhysicalCenter = D2D1::Point2F(cueBall->x, cueBall->y); // This is also rayStart
3496
3497        // Offset calculation based on actual cue ball position relative to the 'dir' line through targetStartPoint
3498        float offset = ((targetStartPoint.x - actualCueBallPhysicalCenter.x) * perp.x +
3499            (targetStartPoint.y - actualCueBallPhysicalCenter.y) * perp.y);
3500        float absOffset = fabsf(offset);
3501        float side = (offset >= 0 ? 1.0f : -1.0f);
3502
3503
3504        // Actual contact point on target ball edge
3505        D2D1_POINT_2F contactPoint = {
3506        contactBallCenter.x + perp.x * BALL_RADIUS * side,
3507        contactBallCenter.y + perp.y * BALL_RADIUS * side
3508        };
3509
3510        // Tangent (cut shot) path from contact point
3511            // Tangent (cut shot) path: from contact point to contact ball center
3512        D2D1_POINT_2F objectBallDir = {
3513            contactBallCenter.x - contactPoint.x,
3514            contactBallCenter.y - contactPoint.y
3515        };
3516        float oLen = sqrtf(objectBallDir.x * objectBallDir.x + objectBallDir.y * objectBallDir.y);
3517        if (oLen != 0.0f) {
3518            objectBallDir.x /= oLen;
3519            objectBallDir.y /= oLen;
3520        }
3521
3522        const float PRIMARY_LEN = 150.0f; //default=150.0f
3523        const float SECONDARY_LEN = 150.0f; //default=150.0f
3524        const float STRAIGHT_EPSILON = BALL_RADIUS * 0.05f;
3525
3526        D2D1_POINT_2F primaryEnd = {
3527            targetStartPoint.x + dir.x * PRIMARY_LEN,
3528            targetStartPoint.y + dir.y * PRIMARY_LEN
3529        };
3530
3531        // Secondary line starts from the contact ball's center
3532        D2D1_POINT_2F secondaryStart = contactBallCenter;
3533        D2D1_POINT_2F secondaryEnd = {
3534            secondaryStart.x + objectBallDir.x * SECONDARY_LEN,
3535            secondaryStart.y + objectBallDir.y * SECONDARY_LEN
3536        };
3537
3538        if (absOffset < STRAIGHT_EPSILON)  // straight shot?
3539        {
3540            // Straight: secondary behind primary
3541                    // secondary behind primary {pDashedStyle param at end}
3542            pRT->DrawLine(secondaryStart, secondaryEnd, pPurpleBrush, 2.0f);
3543            //pRT->DrawLine(secondaryStart, secondaryEnd, pGhostBrush, 1.0f);
3544            pRT->DrawLine(targetStartPoint, primaryEnd, pCyanBrush, 2.0f);
3545            //pRT->DrawLine(targetStartPoint, primaryEnd, pBrush, 1.0f);
3546        }
3547        else
3548        {
3549            // Cut shot: both visible
3550                    // both visible for cut shot
3551            pRT->DrawLine(secondaryStart, secondaryEnd, pPurpleBrush, 2.0f);
3552            //pRT->DrawLine(secondaryStart, secondaryEnd, pGhostBrush, 1.0f);
3553            pRT->DrawLine(targetStartPoint, primaryEnd, pCyanBrush, 2.0f);
3554            //pRT->DrawLine(targetStartPoint, primaryEnd, pBrush, 1.0f);
3555        }
3556        // End improved trajectory logic
3557
3558    //new code end
3559
3560        // -- Cue Ball Path after collision (Optional, requires physics) --
3561        // Very simplified: Assume cue deflects, angle depends on cut angle.
3562        // float cutAngle = acosf(cosf(cueAngle - targetProjectionAngle)); // Angle between paths
3563        // float cueDeflectionAngle = ? // Depends on cutAngle, spin, etc. Hard to predict accurately.
3564        // D2D1_POINT_2F cueProjectionEnd = ...
3565        // pRT->DrawLine(ballCollisionPoint, cueProjectionEnd, pGhostBrush, 1.0f, pDashedStyle ? pDashedStyle : NULL);
3566
3567        // --- Accuracy Comment ---
3568        // Note: The visual accuracy of this projection, especially for cut shots (hitting the ball off-center)
3569        // or shots with spin, is limited by the simplified physics model. Real pool physics involves
3570        // collision-induced throw, spin transfer, and cue ball deflection not fully simulated here.
3571        // The ghost ball method shows the *ideal* line for a center-cue hit without spin.
3572
3573    }
3574    else if (aimingAtRail && hitRailIndex != -1) {
3575        // Aiming at a rail: Draw reflection line
3576        float reflectAngle = cueAngle;
3577        // Reflect angle based on which rail was hit
3578        if (hitRailIndex == 0 || hitRailIndex == 1) { // Left or Right rail
3579            reflectAngle = PI - cueAngle; // Reflect horizontal component
3580        }
3581        else { // Top or Bottom rail
3582            reflectAngle = -cueAngle; // Reflect vertical component
3583        }
3584        // Normalize angle if needed (atan2 usually handles this)
3585        while (reflectAngle > PI) reflectAngle -= 2 * PI;
3586        while (reflectAngle <= -PI) reflectAngle += 2 * PI;
3587
3588
3589        float reflectionLength = 60.0f; // Length of the reflection line
3590        D2D1_POINT_2F reflectionEnd = D2D1::Point2F(
3591            finalLineEnd.x + cosf(reflectAngle) * reflectionLength,
3592            finalLineEnd.y + sinf(reflectAngle) * reflectionLength
3593        );
3594
3595        // Draw the reflection line (e.g., using a different color/style)
3596        pRT->DrawLine(finalLineEnd, reflectionEnd, pReflectBrush, 1.0f, pDashedStyle ? pDashedStyle : NULL);
3597    }
3598
3599    // Release resources
3600    SafeRelease(&pBrush);
3601    SafeRelease(&pGhostBrush);
3602    SafeRelease(&pCueBrush);
3603    SafeRelease(&pReflectBrush); // Release new brush
3604    SafeRelease(&pCyanBrush);
3605    SafeRelease(&pPurpleBrush);
3606    SafeRelease(&pDashedStyle);
3607}
3608
3609
3610void DrawUI(ID2D1RenderTarget* pRT) {
3611    if (!pTextFormat || !pLargeTextFormat) return;
3612
3613    ID2D1SolidColorBrush* pBrush = nullptr;
3614    pRT->CreateSolidColorBrush(UI_TEXT_COLOR, &pBrush);
3615    if (!pBrush) return;
3616
3617    // --- Player Info Area (Top Left/Right) --- (Unchanged)
3618    float uiTop = TABLE_TOP - 80;
3619    float uiHeight = 60;
3620    float p1Left = TABLE_LEFT;
3621    float p1Width = 150;
3622    float p2Left = TABLE_RIGHT - p1Width;
3623    D2D1_RECT_F p1Rect = D2D1::RectF(p1Left, uiTop, p1Left + p1Width, uiTop + uiHeight);
3624    D2D1_RECT_F p2Rect = D2D1::RectF(p2Left, uiTop, p2Left + p1Width, uiTop + uiHeight);
3625
3626    // Player 1 Info Text (Unchanged)
3627    std::wostringstream oss1;
3628    oss1 << player1Info.name.c_str() << L"\n";
3629    if (player1Info.assignedType != BallType::NONE) {
3630        oss1 << ((player1Info.assignedType == BallType::SOLID) ? L"Solids (Yellow)" : L"Stripes (Red)");
3631        oss1 << L" [" << player1Info.ballsPocketedCount << L"/7]";
3632    }
3633    else {
3634        oss1 << L"(Undecided)";
3635    }
3636    pRT->DrawText(oss1.str().c_str(), (UINT32)oss1.str().length(), pTextFormat, &p1Rect, pBrush);
3637    // Draw Player 1 Side Ball
3638    if (player1Info.assignedType != BallType::NONE)
3639    {
3640        ID2D1SolidColorBrush* pBallBrush = nullptr;
3641        D2D1_COLOR_F ballColor = (player1Info.assignedType == BallType::SOLID) ?
3642            D2D1::ColorF(1.0f, 1.0f, 0.0f) : D2D1::ColorF(1.0f, 0.0f, 0.0f);
3643        pRT->CreateSolidColorBrush(ballColor, &pBallBrush);
3644        if (pBallBrush)
3645        {
3646            D2D1_POINT_2F ballCenter = D2D1::Point2F(p1Rect.right + 10.0f, p1Rect.top + 20.0f);
3647            float radius = 10.0f;
3648            D2D1_ELLIPSE ball = D2D1::Ellipse(ballCenter, radius, radius);
3649            pRT->FillEllipse(&ball, pBallBrush);
3650            SafeRelease(&pBallBrush);
3651            // Draw border around the ball
3652            ID2D1SolidColorBrush* pBorderBrush = nullptr;
3653            pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &pBorderBrush);
3654            if (pBorderBrush)
3655            {
3656                pRT->DrawEllipse(&ball, pBorderBrush, 1.5f); // thin border
3657                SafeRelease(&pBorderBrush);
3658            }
3659
3660            // If stripes, draw a stripe band
3661            if (player1Info.assignedType == BallType::STRIPE)
3662            {
3663                ID2D1SolidColorBrush* pStripeBrush = nullptr;
3664                pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), &pStripeBrush);
3665                if (pStripeBrush)
3666                {
3667                    D2D1_RECT_F stripeRect = D2D1::RectF(
3668                        ballCenter.x - radius,
3669                        ballCenter.y - 3.0f,
3670                        ballCenter.x + radius,
3671                        ballCenter.y + 3.0f
3672                    );
3673                    pRT->FillRectangle(&stripeRect, pStripeBrush);
3674                    SafeRelease(&pStripeBrush);
3675                }
3676            }
3677        }
3678    }
3679
3680
3681    // Player 2 Info Text (Unchanged)
3682    std::wostringstream oss2;
3683    oss2 << player2Info.name.c_str() << L"\n";
3684    if (player2Info.assignedType != BallType::NONE) {
3685        oss2 << ((player2Info.assignedType == BallType::SOLID) ? L"Solids (Yellow)" : L"Stripes (Red)");
3686        oss2 << L" [" << player2Info.ballsPocketedCount << L"/7]";
3687    }
3688    else {
3689        oss2 << L"(Undecided)";
3690    }
3691    pRT->DrawText(oss2.str().c_str(), (UINT32)oss2.str().length(), pTextFormat, &p2Rect, pBrush);
3692    // Draw Player 2 Side Ball
3693    if (player2Info.assignedType != BallType::NONE)
3694    {
3695        ID2D1SolidColorBrush* pBallBrush = nullptr;
3696        D2D1_COLOR_F ballColor = (player2Info.assignedType == BallType::SOLID) ?
3697            D2D1::ColorF(1.0f, 1.0f, 0.0f) : D2D1::ColorF(1.0f, 0.0f, 0.0f);
3698        pRT->CreateSolidColorBrush(ballColor, &pBallBrush);
3699        if (pBallBrush)
3700        {
3701            D2D1_POINT_2F ballCenter = D2D1::Point2F(p2Rect.right + 10.0f, p2Rect.top + 20.0f);
3702            float radius = 10.0f;
3703            D2D1_ELLIPSE ball = D2D1::Ellipse(ballCenter, radius, radius);
3704            pRT->FillEllipse(&ball, pBallBrush);
3705            SafeRelease(&pBallBrush);
3706            // Draw border around the ball
3707            ID2D1SolidColorBrush* pBorderBrush = nullptr;
3708            pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &pBorderBrush);
3709            if (pBorderBrush)
3710            {
3711                pRT->DrawEllipse(&ball, pBorderBrush, 1.5f); // thin border
3712                SafeRelease(&pBorderBrush);
3713            }
3714
3715            // If stripes, draw a stripe band
3716            if (player2Info.assignedType == BallType::STRIPE)
3717            {
3718                ID2D1SolidColorBrush* pStripeBrush = nullptr;
3719                pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), &pStripeBrush);
3720                if (pStripeBrush)
3721                {
3722                    D2D1_RECT_F stripeRect = D2D1::RectF(
3723                        ballCenter.x - radius,
3724                        ballCenter.y - 3.0f,
3725                        ballCenter.x + radius,
3726                        ballCenter.y + 3.0f
3727                    );
3728                    pRT->FillRectangle(&stripeRect, pStripeBrush);
3729                    SafeRelease(&pStripeBrush);
3730                }
3731            }
3732        }
3733    }
3734
3735
3736    // --- MODIFIED: Current Turn Arrow (Blue, Bigger, Beside Name) ---
3737    ID2D1SolidColorBrush* pArrowBrush = nullptr;
3738    pRT->CreateSolidColorBrush(TURN_ARROW_COLOR, &pArrowBrush);
3739    if (pArrowBrush && currentGameState != GAME_OVER && currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING) {
3740        float arrowSizeBase = 32.0f; // Base size for width/height offsets (4x original ~8)
3741        float arrowCenterY = p1Rect.top + uiHeight / 2.0f; // Center vertically with text box
3742        float arrowTipX, arrowBackX;
3743
3744        D2D1_RECT_F playerBox = (currentPlayer == 1) ? p1Rect : p2Rect;
3745        arrowBackX = playerBox.left - 25.0f;
3746        arrowTipX = arrowBackX + arrowSizeBase * 0.75f;
3747
3748        float notchDepth = 12.0f;  // Increased from 6.0f to make the rectangle longer
3749        float notchWidth = 10.0f;
3750
3751        float cx = arrowBackX;
3752        float cy = arrowCenterY;
3753
3754        // Define triangle + rectangle tail shape
3755        D2D1_POINT_2F tip = D2D1::Point2F(arrowTipX, cy);                           // tip
3756        D2D1_POINT_2F baseTop = D2D1::Point2F(cx, cy - arrowSizeBase / 2.0f);          // triangle top
3757        D2D1_POINT_2F baseBot = D2D1::Point2F(cx, cy + arrowSizeBase / 2.0f);          // triangle bottom
3758
3759        // Rectangle coordinates for the tail portion:
3760        D2D1_POINT_2F r1 = D2D1::Point2F(cx - notchDepth, cy - notchWidth / 2.0f);   // rect top-left
3761        D2D1_POINT_2F r2 = D2D1::Point2F(cx, cy - notchWidth / 2.0f);                 // rect top-right
3762        D2D1_POINT_2F r3 = D2D1::Point2F(cx, cy + notchWidth / 2.0f);                 // rect bottom-right
3763        D2D1_POINT_2F r4 = D2D1::Point2F(cx - notchDepth, cy + notchWidth / 2.0f);    // rect bottom-left
3764
3765        ID2D1PathGeometry* pPath = nullptr;
3766        if (SUCCEEDED(pFactory->CreatePathGeometry(&pPath))) {
3767            ID2D1GeometrySink* pSink = nullptr;
3768            if (SUCCEEDED(pPath->Open(&pSink))) {
3769                pSink->BeginFigure(tip, D2D1_FIGURE_BEGIN_FILLED);
3770                pSink->AddLine(baseTop);
3771                pSink->AddLine(r2); // transition from triangle into rectangle
3772                pSink->AddLine(r1);
3773                pSink->AddLine(r4);
3774                pSink->AddLine(r3);
3775                pSink->AddLine(baseBot);
3776                pSink->EndFigure(D2D1_FIGURE_END_CLOSED);
3777                pSink->Close();
3778                SafeRelease(&pSink);
3779                pRT->FillGeometry(pPath, pArrowBrush);
3780            }
3781            SafeRelease(&pPath);
3782        }
3783
3784
3785        SafeRelease(&pArrowBrush);
3786    }
3787
3788    //original
3789/*
3790    // --- MODIFIED: Current Turn Arrow (Blue, Bigger, Beside Name) ---
3791    ID2D1SolidColorBrush* pArrowBrush = nullptr;
3792    pRT->CreateSolidColorBrush(TURN_ARROW_COLOR, &pArrowBrush);
3793    if (pArrowBrush && currentGameState != GAME_OVER && currentGameState != SHOT_IN_PROGRESS && currentGameState != AI_THINKING) {
3794        float arrowSizeBase = 32.0f; // Base size for width/height offsets (4x original ~8)
3795        float arrowCenterY = p1Rect.top + uiHeight / 2.0f; // Center vertically with text box
3796        float arrowTipX, arrowBackX;
3797
3798        if (currentPlayer == 1) {
3799arrowBackX = p1Rect.left - 25.0f; // Position left of the box
3800            arrowTipX = arrowBackX + arrowSizeBase * 0.75f; // Pointy end extends right
3801            // Define points for right-pointing arrow
3802            //D2D1_POINT_2F pt1 = D2D1::Point2F(arrowTipX, arrowCenterY); // Tip
3803            //D2D1_POINT_2F pt2 = D2D1::Point2F(arrowBackX, arrowCenterY - arrowSizeBase / 2.0f); // Top-Back
3804            //D2D1_POINT_2F pt3 = D2D1::Point2F(arrowBackX, arrowCenterY + arrowSizeBase / 2.0f); // Bottom-Back
3805            // Enhanced arrow with base rectangle intersection
3806    float notchDepth = 6.0f; // Depth of square base "stem"
3807    float notchWidth = 4.0f; // Thickness of square part
3808
3809    D2D1_POINT_2F pt1 = D2D1::Point2F(arrowTipX, arrowCenterY); // Tip
3810    D2D1_POINT_2F pt2 = D2D1::Point2F(arrowBackX, arrowCenterY - arrowSizeBase / 2.0f); // Top-Back
3811    D2D1_POINT_2F pt3 = D2D1::Point2F(arrowBackX - notchDepth, arrowCenterY - notchWidth / 2.0f); // Square Left-Top
3812    D2D1_POINT_2F pt4 = D2D1::Point2F(arrowBackX - notchDepth, arrowCenterY + notchWidth / 2.0f); // Square Left-Bottom
3813    D2D1_POINT_2F pt5 = D2D1::Point2F(arrowBackX, arrowCenterY + arrowSizeBase / 2.0f); // Bottom-Back
3814
3815
3816    ID2D1PathGeometry* pPath = nullptr;
3817    if (SUCCEEDED(pFactory->CreatePathGeometry(&pPath))) {
3818        ID2D1GeometrySink* pSink = nullptr;
3819        if (SUCCEEDED(pPath->Open(&pSink))) {
3820            pSink->BeginFigure(pt1, D2D1_FIGURE_BEGIN_FILLED);
3821            pSink->AddLine(pt2);
3822            pSink->AddLine(pt3);
3823            pSink->EndFigure(D2D1_FIGURE_END_CLOSED);
3824            pSink->Close();
3825            SafeRelease(&pSink);
3826            pRT->FillGeometry(pPath, pArrowBrush);
3827        }
3828        SafeRelease(&pPath);
3829    }
3830        }
3831
3832
3833        //==================else player 2
3834        else { // Player 2
3835         // Player 2: Arrow left of P2 box, pointing right (or right of P2 box pointing left?)
3836         // Let's keep it consistent: Arrow left of the active player's box, pointing right.
3837// Let's keep it consistent: Arrow left of the active player's box, pointing right.
3838arrowBackX = p2Rect.left - 25.0f; // Position left of the box
3839arrowTipX = arrowBackX + arrowSizeBase * 0.75f; // Pointy end extends right
3840// Define points for right-pointing arrow
3841D2D1_POINT_2F pt1 = D2D1::Point2F(arrowTipX, arrowCenterY); // Tip
3842D2D1_POINT_2F pt2 = D2D1::Point2F(arrowBackX, arrowCenterY - arrowSizeBase / 2.0f); // Top-Back
3843D2D1_POINT_2F pt3 = D2D1::Point2F(arrowBackX, arrowCenterY + arrowSizeBase / 2.0f); // Bottom-Back
3844
3845ID2D1PathGeometry* pPath = nullptr;
3846if (SUCCEEDED(pFactory->CreatePathGeometry(&pPath))) {
3847    ID2D1GeometrySink* pSink = nullptr;
3848    if (SUCCEEDED(pPath->Open(&pSink))) {
3849        pSink->BeginFigure(pt1, D2D1_FIGURE_BEGIN_FILLED);
3850        pSink->AddLine(pt2);
3851        pSink->AddLine(pt3);
3852        pSink->EndFigure(D2D1_FIGURE_END_CLOSED);
3853        pSink->Close();
3854        SafeRelease(&pSink);
3855        pRT->FillGeometry(pPath, pArrowBrush);
3856    }
3857    SafeRelease(&pPath);
3858}
3859        }
3860        */
3861
3862        // --- MODIFIED: Foul Text (Large Red, Bottom Center) ---
3863    if (foulCommitted && currentGameState != SHOT_IN_PROGRESS) {
3864        ID2D1SolidColorBrush* pFoulBrush = nullptr;
3865        pRT->CreateSolidColorBrush(FOUL_TEXT_COLOR, &pFoulBrush);
3866        if (pFoulBrush && pLargeTextFormat) {
3867            // Calculate Rect for bottom-middle area
3868            float foulWidth = 200.0f; // Adjust width as needed
3869            float foulHeight = 60.0f;
3870            float foulLeft = TABLE_LEFT + (TABLE_WIDTH / 2.0f) - (foulWidth / 2.0f);
3871            // Position below the pocketed balls bar
3872            float foulTop = pocketedBallsBarRect.bottom + 10.0f;
3873            D2D1_RECT_F foulRect = D2D1::RectF(foulLeft, foulTop, foulLeft + foulWidth, foulTop + foulHeight);
3874
3875            // --- Set text alignment to center for foul text ---
3876            pLargeTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
3877            pLargeTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
3878
3879            pRT->DrawText(L"FOUL!", 5, pLargeTextFormat, &foulRect, pFoulBrush);
3880
3881            // --- Restore default alignment for large text if needed elsewhere ---
3882            // pLargeTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING);
3883            // pLargeTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
3884
3885            SafeRelease(&pFoulBrush);
3886        }
3887    }
3888
3889    // --- Draw "Choose Pocket" Message ---
3890    if (!pocketCallMessage.empty() && (currentGameState == CHOOSING_POCKET_P1 || currentGameState == CHOOSING_POCKET_P2)) {
3891        ID2D1SolidColorBrush* pMsgBrush = nullptr;
3892        pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), &pMsgBrush);
3893        if (pMsgBrush && pTextFormat) {
3894            float msgWidth = 450.0f;
3895            float msgHeight = 30.0f;
3896            float msgLeft = TABLE_LEFT + (TABLE_WIDTH / 2.0f) - (msgWidth / 2.0f);
3897            float msgTop = pocketedBallsBarRect.bottom + 10.0f;
3898            if (foulCommitted && currentGameState != SHOT_IN_PROGRESS) msgTop += 30.0f;
3899
3900            D2D1_RECT_F msgRect = D2D1::RectF(msgLeft, msgTop, msgLeft + msgWidth, msgTop + msgHeight);
3901
3902            pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
3903            pTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
3904            pRT->DrawText(pocketCallMessage.c_str(), (UINT32)pocketCallMessage.length(), pTextFormat, &msgRect, pMsgBrush);
3905            SafeRelease(&pMsgBrush);
3906        }
3907    }
3908
3909
3910    // Show AI Thinking State (Unchanged from previous step)
3911    if (currentGameState == AI_THINKING && pTextFormat) {
3912        ID2D1SolidColorBrush* pThinkingBrush = nullptr;
3913        pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Orange), &pThinkingBrush);
3914        if (pThinkingBrush) {
3915            D2D1_RECT_F thinkingRect = p2Rect;
3916            thinkingRect.top += 20; // Offset within P2 box
3917            // Ensure default text alignment for this
3918            pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
3919            pTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
3920            pRT->DrawText(L"Thinking...", 11, pTextFormat, &thinkingRect, pThinkingBrush);
3921            SafeRelease(&pThinkingBrush);
3922        }
3923    }
3924
3925    SafeRelease(&pBrush);
3926
3927    // --- Draw CHEAT MODE label if active ---
3928    if (cheatModeEnabled) {
3929        ID2D1SolidColorBrush* pCheatBrush = nullptr;
3930        pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Red), &pCheatBrush);
3931        if (pCheatBrush && pTextFormat) {
3932            D2D1_RECT_F cheatTextRect = D2D1::RectF(
3933                TABLE_LEFT + 10.0f,
3934                TABLE_TOP + 10.0f,
3935                TABLE_LEFT + 200.0f,
3936                TABLE_TOP + 40.0f
3937            );
3938            pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING);
3939            pTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_NEAR);
3940            pRT->DrawText(L"CHEAT MODE ON", wcslen(L"CHEAT MODE ON"), pTextFormat, &cheatTextRect, pCheatBrush);
3941        }
3942        SafeRelease(&pCheatBrush);
3943    }
3944}
3945
3946void DrawPowerMeter(ID2D1RenderTarget* pRT) {
3947    // Draw Border
3948    ID2D1SolidColorBrush* pBorderBrush = nullptr;
3949    pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &pBorderBrush);
3950    if (!pBorderBrush) return;
3951    pRT->DrawRectangle(&powerMeterRect, pBorderBrush, 2.0f);
3952    SafeRelease(&pBorderBrush);
3953
3954    // Create Gradient Fill
3955    ID2D1GradientStopCollection* pGradientStops = nullptr;
3956    ID2D1LinearGradientBrush* pGradientBrush = nullptr;
3957    D2D1_GRADIENT_STOP gradientStops[4];
3958    gradientStops[0].position = 0.0f;
3959    gradientStops[0].color = D2D1::ColorF(D2D1::ColorF::Green);
3960    gradientStops[1].position = 0.45f;
3961    gradientStops[1].color = D2D1::ColorF(D2D1::ColorF::Yellow);
3962    gradientStops[2].position = 0.7f;
3963    gradientStops[2].color = D2D1::ColorF(D2D1::ColorF::Orange);
3964    gradientStops[3].position = 1.0f;
3965    gradientStops[3].color = D2D1::ColorF(D2D1::ColorF::Red);
3966
3967    pRT->CreateGradientStopCollection(gradientStops, 4, &pGradientStops);
3968    if (pGradientStops) {
3969        D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES props = {};
3970        props.startPoint = D2D1::Point2F(powerMeterRect.left, powerMeterRect.bottom);
3971        props.endPoint = D2D1::Point2F(powerMeterRect.left, powerMeterRect.top);
3972        pRT->CreateLinearGradientBrush(props, pGradientStops, &pGradientBrush);
3973        SafeRelease(&pGradientStops);
3974    }
3975
3976    // Calculate Fill Height
3977    float fillRatio = 0;
3978    //if (isAiming && (currentGameState == AIMING || currentGameState == BREAKING)) {
3979        // Determine if power meter should reflect shot power (human aiming or AI preparing)
3980    bool humanIsAimingPower = isAiming && (currentGameState == AIMING || currentGameState == BREAKING);
3981    // NEW Condition: AI is displaying its aim, so show its chosen power
3982    bool aiIsVisualizingPower = (isPlayer2AI && currentPlayer == 2 &&
3983        currentGameState == AI_THINKING && aiIsDisplayingAim);
3984
3985    if (humanIsAimingPower || aiIsVisualizingPower) { // Use the new condition
3986        fillRatio = shotPower / MAX_SHOT_POWER;
3987    }
3988    float fillHeight = (powerMeterRect.bottom - powerMeterRect.top) * fillRatio;
3989    D2D1_RECT_F fillRect = D2D1::RectF(
3990        powerMeterRect.left,
3991        powerMeterRect.bottom - fillHeight,
3992        powerMeterRect.right,
3993        powerMeterRect.bottom
3994    );
3995
3996    if (pGradientBrush) {
3997        pRT->FillRectangle(&fillRect, pGradientBrush);
3998        SafeRelease(&pGradientBrush);
3999    }
4000
4001    // Draw scale notches
4002    ID2D1SolidColorBrush* pNotchBrush = nullptr;
4003    pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &pNotchBrush);
4004    if (pNotchBrush) {
4005        for (int i = 0; i <= 8; ++i) {
4006            float y = powerMeterRect.top + (powerMeterRect.bottom - powerMeterRect.top) * (i / 8.0f);
4007            pRT->DrawLine(
4008                D2D1::Point2F(powerMeterRect.right + 2.0f, y),
4009                D2D1::Point2F(powerMeterRect.right + 8.0f, y),
4010                pNotchBrush,
4011                1.5f
4012            );
4013        }
4014        SafeRelease(&pNotchBrush);
4015    }
4016
4017    // Draw "Power" Label Below Meter
4018    if (pTextFormat) {
4019        ID2D1SolidColorBrush* pTextBrush = nullptr;
4020        pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black), &pTextBrush);
4021        if (pTextBrush) {
4022            D2D1_RECT_F textRect = D2D1::RectF(
4023                powerMeterRect.left - 20.0f,
4024                powerMeterRect.bottom + 8.0f,
4025                powerMeterRect.right + 20.0f,
4026                powerMeterRect.bottom + 38.0f
4027            );
4028            pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
4029            pTextFormat->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_NEAR);
4030            pRT->DrawText(L"Power", 5, pTextFormat, &textRect, pTextBrush);
4031            SafeRelease(&pTextBrush);
4032        }
4033    }
4034
4035    // Draw Glow Effect if fully charged or fading out
4036    static float glowPulse = 0.0f;
4037    static bool glowIncreasing = true;
4038    static float glowFadeOut = 0.0f; // NEW: tracks fading out
4039
4040    if (shotPower >= MAX_SHOT_POWER * 0.99f) {
4041        // While fully charged, keep pulsing normally
4042        if (glowIncreasing) {
4043            glowPulse += 0.02f;
4044            if (glowPulse >= 1.0f) glowIncreasing = false;
4045        }
4046        else {
4047            glowPulse -= 0.02f;
4048            if (glowPulse <= 0.0f) glowIncreasing = true;
4049        }
4050        glowFadeOut = 1.0f; // Reset fade out to full
4051    }
4052    else if (glowFadeOut > 0.0f) {
4053        // If shot fired, gradually fade out
4054        glowFadeOut -= 0.02f;
4055        if (glowFadeOut < 0.0f) glowFadeOut = 0.0f;
4056    }
4057
4058    if (glowFadeOut > 0.0f) {
4059        ID2D1SolidColorBrush* pGlowBrush = nullptr;
4060        float effectiveOpacity = (0.3f + 0.7f * glowPulse) * glowFadeOut;
4061        pRT->CreateSolidColorBrush(
4062            D2D1::ColorF(D2D1::ColorF::Red, effectiveOpacity),
4063            &pGlowBrush
4064        );
4065        if (pGlowBrush) {
4066            float glowCenterX = (powerMeterRect.left + powerMeterRect.right) / 2.0f;
4067            float glowCenterY = powerMeterRect.top;
4068            D2D1_ELLIPSE glowEllipse = D2D1::Ellipse(
4069                D2D1::Point2F(glowCenterX, glowCenterY - 10.0f),
4070                12.0f + 3.0f * glowPulse,
4071                6.0f + 2.0f * glowPulse
4072            );
4073            pRT->FillEllipse(&glowEllipse, pGlowBrush);
4074            SafeRelease(&pGlowBrush);
4075        }
4076    }
4077}
4078
4079void DrawSpinIndicator(ID2D1RenderTarget* pRT) {
4080    ID2D1SolidColorBrush* pWhiteBrush = nullptr;
4081    ID2D1SolidColorBrush* pRedBrush = nullptr;
4082
4083    pRT->CreateSolidColorBrush(CUE_BALL_COLOR, &pWhiteBrush);
4084    pRT->CreateSolidColorBrush(ENGLISH_DOT_COLOR, &pRedBrush);
4085
4086    if (!pWhiteBrush || !pRedBrush) {
4087        SafeRelease(&pWhiteBrush);
4088        SafeRelease(&pRedBrush);
4089        return;
4090    }
4091
4092    // Draw White Ball Background
4093    D2D1_ELLIPSE bgEllipse = D2D1::Ellipse(spinIndicatorCenter, spinIndicatorRadius, spinIndicatorRadius);
4094    pRT->FillEllipse(&bgEllipse, pWhiteBrush);
4095    pRT->DrawEllipse(&bgEllipse, pRedBrush, 0.5f); // Thin red border
4096
4097
4098    // Draw Red Dot for Spin Position
4099    float dotRadius = 4.0f;
4100    float dotX = spinIndicatorCenter.x + cueSpinX * (spinIndicatorRadius - dotRadius); // Keep dot inside edge
4101    float dotY = spinIndicatorCenter.y + cueSpinY * (spinIndicatorRadius - dotRadius);
4102    D2D1_ELLIPSE dotEllipse = D2D1::Ellipse(D2D1::Point2F(dotX, dotY), dotRadius, dotRadius);
4103    pRT->FillEllipse(&dotEllipse, pRedBrush);
4104
4105    SafeRelease(&pWhiteBrush);
4106    SafeRelease(&pRedBrush);
4107}
4108
4109
4110void DrawPocketedBallsIndicator(ID2D1RenderTarget* pRT) {
4111    ID2D1SolidColorBrush* pBgBrush = nullptr;
4112    ID2D1SolidColorBrush* pBallBrush = nullptr;
4113
4114    // Ensure render target is valid before proceeding
4115    if (!pRT) return;
4116
4117    HRESULT hr = pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Black, 0.8f), &pBgBrush); // Semi-transparent black
4118    if (FAILED(hr)) { SafeRelease(&pBgBrush); return; } // Exit if brush creation fails
4119
4120    hr = pRT->CreateSolidColorBrush(D2D1::ColorF(0, 0, 0), &pBallBrush); // Placeholder, color will be set per ball
4121    if (FAILED(hr)) {
4122        SafeRelease(&pBgBrush);
4123        SafeRelease(&pBallBrush);
4124        return; // Exit if brush creation fails
4125    }
4126
4127    // Draw the background bar (rounded rect)
4128    D2D1_ROUNDED_RECT roundedRect = D2D1::RoundedRect(pocketedBallsBarRect, 10.0f, 10.0f); // Corner radius 10
4129    float baseAlpha = 0.8f;
4130    float flashBoost = pocketFlashTimer * 0.5f; // Make flash effect boost alpha slightly
4131    float finalAlpha = std::min(1.0f, baseAlpha + flashBoost);
4132    pBgBrush->SetOpacity(finalAlpha);
4133    pRT->FillRoundedRectangle(&roundedRect, pBgBrush);
4134    pBgBrush->SetOpacity(1.0f); // Reset opacity after drawing
4135
4136    // --- Draw small circles for pocketed balls inside the bar ---
4137
4138    // Calculate dimensions based on the bar's height for better scaling
4139    float barHeight = pocketedBallsBarRect.bottom - pocketedBallsBarRect.top;
4140    float ballDisplayRadius = barHeight * 0.30f; // Make balls slightly smaller relative to bar height
4141    float spacing = ballDisplayRadius * 2.2f; // Adjust spacing slightly
4142    float padding = spacing * 0.75f; // Add padding from the edges
4143    float center_Y = pocketedBallsBarRect.top + barHeight / 2.0f; // Vertical center
4144
4145    // Starting X positions with padding
4146    float currentX_P1 = pocketedBallsBarRect.left + padding;
4147    float currentX_P2 = pocketedBallsBarRect.right - padding; // Start from right edge minus padding
4148
4149    int p1DrawnCount = 0;
4150    int p2DrawnCount = 0;
4151    const int maxBallsToShow = 7; // Max balls per player in the bar
4152
4153    for (const auto& b : balls) {
4154        if (b.isPocketed) {
4155            // Skip cue ball and 8-ball in this indicator
4156            if (b.id == 0 || b.id == 8) continue;
4157
4158            bool isPlayer1Ball = (player1Info.assignedType != BallType::NONE && b.type == player1Info.assignedType);
4159            bool isPlayer2Ball = (player2Info.assignedType != BallType::NONE && b.type == player2Info.assignedType);
4160
4161            if (isPlayer1Ball && p1DrawnCount < maxBallsToShow) {
4162                pBallBrush->SetColor(b.color);
4163                // Draw P1 balls from left to right
4164                D2D1_ELLIPSE ballEllipse = D2D1::Ellipse(D2D1::Point2F(currentX_P1 + p1DrawnCount * spacing, center_Y), ballDisplayRadius, ballDisplayRadius);
4165                pRT->FillEllipse(&ballEllipse, pBallBrush);
4166                p1DrawnCount++;
4167            }
4168            else if (isPlayer2Ball && p2DrawnCount < maxBallsToShow) {
4169                pBallBrush->SetColor(b.color);
4170                // Draw P2 balls from right to left
4171                D2D1_ELLIPSE ballEllipse = D2D1::Ellipse(D2D1::Point2F(currentX_P2 - p2DrawnCount * spacing, center_Y), ballDisplayRadius, ballDisplayRadius);
4172                pRT->FillEllipse(&ballEllipse, pBallBrush);
4173                p2DrawnCount++;
4174            }
4175            // Note: Balls pocketed before assignment or opponent balls are intentionally not shown here.
4176            // You could add logic here to display them differently if needed (e.g., smaller, grayed out).
4177        }
4178    }
4179
4180    SafeRelease(&pBgBrush);
4181    SafeRelease(&pBallBrush);
4182}
4183
4184void DrawBallInHandIndicator(ID2D1RenderTarget* pRT) {
4185    if (!isDraggingCueBall && (currentGameState != BALL_IN_HAND_P1 && currentGameState != BALL_IN_HAND_P2 && currentGameState != PRE_BREAK_PLACEMENT)) {
4186        return; // Only show when placing/dragging
4187    }
4188
4189    Ball* cueBall = GetCueBall();
4190    if (!cueBall) return;
4191
4192    ID2D1SolidColorBrush* pGhostBrush = nullptr;
4193    pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White, 0.6f), &pGhostBrush); // Semi-transparent white
4194
4195    if (pGhostBrush) {
4196        D2D1_POINT_2F drawPos;
4197        if (isDraggingCueBall) {
4198            drawPos = D2D1::Point2F((float)ptMouse.x, (float)ptMouse.y);
4199        }
4200        else {
4201            // If not dragging but in placement state, show at current ball pos
4202            drawPos = D2D1::Point2F(cueBall->x, cueBall->y);
4203        }
4204
4205        // Check if the placement is valid before drawing differently?
4206        bool behindHeadstring = (currentGameState == PRE_BREAK_PLACEMENT);
4207        bool isValid = IsValidCueBallPosition(drawPos.x, drawPos.y, behindHeadstring);
4208
4209        if (!isValid) {
4210            // Maybe draw red outline if invalid placement?
4211            pGhostBrush->SetColor(D2D1::ColorF(D2D1::ColorF::Red, 0.6f));
4212        }
4213
4214
4215        D2D1_ELLIPSE ghostEllipse = D2D1::Ellipse(drawPos, BALL_RADIUS, BALL_RADIUS);
4216        pRT->FillEllipse(&ghostEllipse, pGhostBrush);
4217        pRT->DrawEllipse(&ghostEllipse, pGhostBrush, 1.0f); // Outline
4218
4219        SafeRelease(&pGhostBrush);
4220    }
4221}
4222
4223void DrawPocketSelectionIndicator(ID2D1RenderTarget* pRT) {
4224    int pocketToIndicate = -1;
4225    // A human player is actively choosing if they are in the CHOOSING_POCKET state.
4226    bool isHumanChoosing = (currentGameState == CHOOSING_POCKET_P1 || (currentGameState == CHOOSING_POCKET_P2 && !isPlayer2AI));
4227
4228    if (isHumanChoosing) {
4229        // When choosing, show the currently selected pocket (which has a default).
4230        pocketToIndicate = (currentPlayer == 1) ? calledPocketP1 : calledPocketP2;
4231    }
4232    else if (IsPlayerOnEightBall(currentPlayer)) {
4233        // If it's a normal turn but the player is on the 8-ball, show their called pocket as a reminder.
4234        pocketToIndicate = (currentPlayer == 1) ? calledPocketP1 : calledPocketP2;
4235    }
4236
4237    if (pocketToIndicate < 0 || pocketToIndicate > 5) {
4238        return; // Don't draw if no pocket is selected or relevant.
4239    }
4240
4241    ID2D1SolidColorBrush* pArrowBrush = nullptr;
4242    pRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::Yellow, 0.9f), &pArrowBrush);
4243    if (!pArrowBrush) return;
4244
4245    // ... The rest of your arrow drawing geometry logic remains exactly the same ...
4246    // (No changes needed to the points/path drawing, only the logic above)
4247    D2D1_POINT_2F targetPocketCenter = pocketPositions[pocketToIndicate];
4248    float arrowHeadSize = HOLE_VISUAL_RADIUS * 0.5f;
4249    float arrowShaftLength = HOLE_VISUAL_RADIUS * 0.3f;
4250    float arrowShaftWidth = arrowHeadSize * 0.4f;
4251    float verticalOffsetFromPocketCenter = HOLE_VISUAL_RADIUS * 1.6f;
4252    D2D1_POINT_2F tip, baseLeft, baseRight, shaftTopLeft, shaftTopRight, shaftBottomLeft, shaftBottomRight;
4253
4254    if (targetPocketCenter.y == TABLE_TOP) {
4255        tip = D2D1::Point2F(targetPocketCenter.x, targetPocketCenter.y + verticalOffsetFromPocketCenter + arrowHeadSize);
4256        baseLeft = D2D1::Point2F(targetPocketCenter.x - arrowHeadSize / 2.0f, targetPocketCenter.y + verticalOffsetFromPocketCenter);
4257        baseRight = D2D1::Point2F(targetPocketCenter.x + arrowHeadSize / 2.0f, targetPocketCenter.y + verticalOffsetFromPocketCenter);
4258        shaftTopLeft = D2D1::Point2F(targetPocketCenter.x - arrowShaftWidth / 2.0f, baseLeft.y);
4259        shaftTopRight = D2D1::Point2F(targetPocketCenter.x + arrowShaftWidth / 2.0f, baseRight.y);
4260        shaftBottomLeft = D2D1::Point2F(targetPocketCenter.x - arrowShaftWidth / 2.0f, baseLeft.y - arrowShaftLength);
4261        shaftBottomRight = D2D1::Point2F(targetPocketCenter.x + arrowShaftWidth / 2.0f, baseRight.y - arrowShaftLength);
4262    }
4263    else {
4264        tip = D2D1::Point2F(targetPocketCenter.x, targetPocketCenter.y - verticalOffsetFromPocketCenter - arrowHeadSize);
4265        baseLeft = D2D1::Point2F(targetPocketCenter.x - arrowHeadSize / 2.0f, targetPocketCenter.y - verticalOffsetFromPocketCenter);
4266        baseRight = D2D1::Point2F(targetPocketCenter.x + arrowHeadSize / 2.0f, targetPocketCenter.y - verticalOffsetFromPocketCenter);
4267        shaftTopLeft = D2D1::Point2F(targetPocketCenter.x - arrowShaftWidth / 2.0f, baseLeft.y + arrowShaftLength);
4268        shaftTopRight = D2D1::Point2F(targetPocketCenter.x + arrowShaftWidth / 2.0f, baseRight.y + arrowShaftLength);
4269        shaftBottomLeft = D2D1::Point2F(targetPocketCenter.x - arrowShaftWidth / 2.0f, baseLeft.y);
4270        shaftBottomRight = D2D1::Point2F(targetPocketCenter.x + arrowShaftWidth / 2.0f, baseRight.y);
4271    }
4272
4273    ID2D1PathGeometry* pPath = nullptr;
4274    if (SUCCEEDED(pFactory->CreatePathGeometry(&pPath))) {
4275        ID2D1GeometrySink* pSink = nullptr;
4276        if (SUCCEEDED(pPath->Open(&pSink))) {
4277            pSink->BeginFigure(tip, D2D1_FIGURE_BEGIN_FILLED);
4278            pSink->AddLine(baseLeft); pSink->AddLine(shaftBottomLeft); pSink->AddLine(shaftTopLeft);
4279            pSink->AddLine(shaftTopRight); pSink->AddLine(shaftBottomRight); pSink->AddLine(baseRight);
4280            pSink->EndFigure(D2D1_FIGURE_END_CLOSED);
4281            pSink->Close();
4282            SafeRelease(&pSink);
4283            pRT->FillGeometry(pPath, pArrowBrush);
4284        }
4285        SafeRelease(&pPath);
4286    }
4287    SafeRelease(&pArrowBrush);
4288}