From f4bd60246aa66b47afb300b0a7a5bdb16bf6b2d3 Mon Sep 17 00:00:00 2001
From: adelikat <adelikat@users.sf.net>
Date: Sun, 2 Aug 2009 00:37:19 +0000
Subject: [PATCH] Added a Rewinder lua script by Jonathan Blow

---
 output/luaScripts/Rewinder.lua | 71 ++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 output/luaScripts/Rewinder.lua

diff --git a/output/luaScripts/Rewinder.lua b/output/luaScripts/Rewinder.lua
new file mode 100644
index 00000000..c9257f20
--- /dev/null
+++ b/output/luaScripts/Rewinder.lua
@@ -0,0 +1,71 @@
+-- NES Braidulator VERSION 1
+--(C) Antony Lavelle 2009       got_wot@hotmail.com      http://www.the-exp.net
+-- A Lua script that allows 'Braid' style time reversal for Nes games being run in FCEUX
+--'Braid' is copyright Jonathan Blow, who is not affiliated with this script, but you should all buy his game because it's ace.
+--This is my first ever time scripting in Lua, so if you can improve on this idea/code please by all means do and redistribute it, just please be nice and include original credits along with your own :)
+
+
+
+--Change these settings to adjust options
+
+
+--Which key you would like to function as the "rewind key"
+
+local rewindKey = 'select'
+
+
+--How much rewind power would you like? (The higher the number the further back in time you can go, but more computer memory is used up)
+--Do not set to 0!
+
+local saveMax = 1000;
+
+
+
+
+--The stuff below is for more advanced users, enter at your own peril!
+
+
+
+local saveArray = {};--the Array in which the save states are stored
+local saveCount = 1;--used for finding which array position to cycle through
+local save; -- the variable used for storing the save state
+local rewindCount = 0;--this stops you looping back around the array if theres nothing at the end
+local savePreventBuffer = 1;--Used for more control over when save states will be saved, not really used in this version much.
+while (true) do
+	savePreventBuffer = savePreventBuffer-1;
+	if savePreventBuffer==0 then
+		savePreventBuffer = 1;
+	end;
+	joyput	= joypad.read(1);
+	if joyput[rewindKey] then
+		savePreventBuffer = 5;
+		if rewindCount==0 then
+			--makes sure you can't go back too far could also include other things in here, left empty for now.	
+		else	
+			savestate.load(saveArray[saveCount]);
+			saveCount = saveCount-1;
+			rewindCount = rewindCount-1;
+			if saveCount==0 then		
+				saveCount = saveMax-1;
+			end;
+		end;
+	end;
+	if savePreventBuffer==1 then
+		gui.text(80,15,"");
+		saveCount=saveCount+1;
+		if saveCount==saveMax then
+			saveCount = 1;
+		end
+		rewindCount = rewindCount+1;
+		if rewindCount==saveMax-1 then
+			rewindCount = saveMax-2;
+		end;
+		save = savestate.create();
+		savestate.save(save);
+		saveArray[saveCount] = save;
+	end;
+	local HUDMATH = (math.ceil((100/saveMax)*rewindCount));--Making the rewind time a percentage.
+	local HUDTEXT = "REWIND POWER: ".. HUDMATH .."%"; 
+	gui.text(80,5,HUDTEXT);--Displaying the time onscreen.
+	FCEU.frameadvance();
+end;