72 lines
2.4 KiB
Lua
72 lines
2.4 KiB
Lua
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-- NES Braidulator VERSION 1
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--(C) Antony Lavelle 2009 got_wot@hotmail.com http://www.the-exp.net
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-- A Lua script that allows 'Braid' style time reversal for Nes games being run in FCEUX
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--'Braid' is copyright Jonathan Blow, who is not affiliated with this script, but you should all buy his game because it's ace.
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--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 :)
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--Change these settings to adjust options
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--Which key you would like to function as the "rewind key"
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local rewindKey = 'select'
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--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)
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--Do not set to 0!
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local saveMax = 1000;
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--The stuff below is for more advanced users, enter at your own peril!
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local saveArray = {};--the Array in which the save states are stored
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local saveCount = 1;--used for finding which array position to cycle through
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local save; -- the variable used for storing the save state
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local rewindCount = 0;--this stops you looping back around the array if theres nothing at the end
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local savePreventBuffer = 1;--Used for more control over when save states will be saved, not really used in this version much.
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while (true) do
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savePreventBuffer = savePreventBuffer-1;
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if savePreventBuffer==0 then
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savePreventBuffer = 1;
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end;
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joyput = joypad.read(1);
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if joyput[rewindKey] then
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savePreventBuffer = 5;
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if rewindCount==0 then
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--makes sure you can't go back too far could also include other things in here, left empty for now.
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else
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savestate.load(saveArray[saveCount]);
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saveCount = saveCount-1;
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rewindCount = rewindCount-1;
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if saveCount==0 then
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saveCount = saveMax-1;
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end;
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end;
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end;
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if savePreventBuffer==1 then
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gui.text(80,15,"");
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saveCount=saveCount+1;
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if saveCount==saveMax then
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saveCount = 1;
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end
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rewindCount = rewindCount+1;
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if rewindCount==saveMax-1 then
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rewindCount = saveMax-2;
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end;
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save = savestate.create();
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savestate.save(save);
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saveArray[saveCount] = save;
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end;
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local HUDMATH = (math.ceil((100/saveMax)*rewindCount));--Making the rewind time a percentage.
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local HUDTEXT = "REWIND POWER: ".. HUDMATH .."%";
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gui.text(80,5,HUDTEXT);--Displaying the time onscreen.
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FCEU.frameadvance();
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end;
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