h9mNNE0B

1---
2-- The below block needs to be parsed on the client and server.
3---
4
5FlashbackBuffer = {};
6
7-- Create a new flashback.
8function Flashback( identifier, onEnter, onExit, onRender)
9	FlashbackBuffer[identifier] = {};
10	
11	FlashbackBuffer[identifier].onEnter = onEnter;
12	FlashbackBuffer[identifier].OnExit = onExit;
13	FlashbackBuffer[identifier].onRender = onRender;
14	FlashbackBuffer[identifier].cache = {};
15	
16end;
17
18
19-- This is an example flashback.
20FlashBack( "OrangeOverlayFlash", function()end, function()end, function(frame,cache)
21	if ( frame == 1 ) then
22		cache.overlayAlpha = 0;
23	end;
24	
25	local currentAlpha = cache.overlayAlpha;
26	
27	surface.SetDrawColor( 255, 0, 0, currentAlpha );
28	surface.DrawRect( 0, 0, ScrW(), ScrH() );
29	
30	if ( cache.fadeIn ) then
31		if ( currentAlpha < 255 ) then
32			cache.overlayAlpha = currentAlpha + 1;
33		else
34			cache.fadeIn = false;
35		end;
36	else
37		if ( currentAlpha > 0 ) then
38			cache.overlayAlpha = currentAlpha - 1;
39		else
40			cache.fadeIn = true;
41		end;
42	end;
43end);
44
45-- See if a flashback exists.
46function FlashbackExists( identifier )
47	if ( FlashbackBuffer[identifier] ) then
48		return true;
49	else
50		return false;
51	end;
52end;
53
54
55-- Get a flashbacks shared table.
56function GetFlashbackTable( identifier )
57	if ( FlashbackBuffer[identifier] ) then
58		return FlashbackBuffer[identifier];
59	end;
60end;
61
62
63---
64-- The below block needs to be parsed on the server.
65---
66
67local PLAYER = FindMetaTable("Player");
68
69-- Enter a player into a flashback.
70function PLAYER:EnterFlashback(identifier)
71
72	local newIdentifier = identifier or "";
73	
74	if ( FlashbackBuffer[newIdentifier] ) then
75		if ( not self._bIsInFlashback ) then
76	
77			self._bIsInFlashback = true;
78			self._strActiveFlashbackIdentifier = newIdentifier;
79			
80			FlashbackBuffer[newIdentifier].onEnter( CurTime() );
81			FlashbackBuffer[newIdentifier].cache = {};
82			
83			umsg.Start( "PlayerEnterFlashback", self );
84				umsg.String( newIdentifier );
85			umsg.End();
86		end;
87	end;
88end;
89
90
91-- Exit a flashback.
92function PLAYER:ExitFlashback()
93	if ( self._bIsInFlashback ) then
94		local ActiveFlashback = self._strActiveFlashbackIdentifier or "";
95		
96		if ( FlashbackBuffer[ActiveFlashback] ) then
97			self._bIsInFlashback = false;
98			self._strActiveFlashbackIdentifier = "";
99			
100			FlashbackBuffer[ActiveFlashback].onExit( CurTime() );
101			
102			umsg.Start( "PlayerExitFlashback", self );
103				umsg.String( ActiveFlashback );
104			umsg.End();
105		end;
106	end;
107end;
108
109
110-- Get whether a player is in a flashback or not
111function PLAYER:IsInFlashback()
112	return self._bIsInFlashback;
113end;
114
115
116-- Get the active flashback.
117function PLAYER:GetActiveFlashback()
118	return self._strActiveFlashbackIdentifier or "";
119end;
120
121---
122-- The below block needs to be parsed on the client.
123---
124
125-- called when the bf read message is recieved on the client.
126usermessage.Hook( "PlayerEnterFlashback", function( bfr )
127	local FlashbackIdentifier = bfr:ReadString();
128	
129	flashbackIsActive = true;
130	flashbackIdentifier = FlashbackIdentifier;
131	flashbackStartTime = CurTime();
132
133	FlashbackBuffer[FlashbackIdentifier].cache.frame = 1;
134end);
135
136-- called when the bf read message is recieved on the client.
137usermessage.Hook( "PlayerExitFlashback", function( bfr )
138	local FlashbackIdentifier = bfr:ReadString();
139	
140	flashbackIsActive = false;
141	flashbackIdentifier = "";
142	flashbackStartTime = nil;
143	flashbackLastEndTime = CurTime();
144end);
145
146
147-- Add a hook to the gamemodse hudpaint, this needs to be moved to a openaura plugin function.
148hook.Add( "HUDPaint", "RenderFlashbacks", function()
149	if ( flashbackIsActive ) then
150		if ( FlashbackBuffer[flashbackIdentifier] ) then
151			local frame = FlashbackBuffer[flashbackIdentifier].cache.frame;
152			
153			FlashbackBuffer[flashbackIdentifier].onRender( frame, FlashbackBuffer[flashbackIdentifier].cache );
154			FlashbackBuffer[flashbackIdentifier].cache.frame = frame + 1;
155		end;
156	end;
157end);