joyrider3774 / fuze_code_screenshot_decoder

Export Your Fuze source code to an image and decode to text on pc

Fuze Code Screenshot Decoder

This tool will decode pictures where each character as been encoded in the pixel data. It decodes pictures where each characters data is represented with 8 pixels, one pixel per bit to form a byte / character. White pixels equals bit 1 and black pixels equals 0. It then checks for R < 128, G < 128, B < 128 to decode the pixels back.

Latest Release

needed code on fuze 4 nintendo switch

The code below is needed to encode the pictures and you need to take a screenshot of the screen.

//fuze Code exporter to image created by willems davy aka joyrider3774
//
//use 1280x720 when using switches build in screenshotting system
//when using hdmi capture card can use 1920x1080 but make sure your viewer app
//can screenshot at this resolution in best quality. I personally use windows 10 camera app
//
//copy / paste your program's code to the test variable below.
//make sure to escape strings by replacing a single double quote ["] with [" + chr(34) + "] 
//for every occurance of it or your multiline string defintion of your code will be wrong and 
//fuze does not give an error on it but it will not export full code then. Also if you have
//very very long code and fuze gives an error on the string constant off your code
//split up the string in multiple string constants and concatenate them when calling the encode
//function 
//
//
screenwidth = 1920
screenheight = 1080

setmode(screenwidth, screenheight)

function initcrctable()
	for k = 0 to 256 loop
		rem = k
		for j = 0 to 8 loop
			if rem & 1 then
				rem >>= 1
				rem ^= 0xEDB8 << 16 + 0x8320
			else
				rem >>= 1
			endif
		repeat
		table[k] = rem
	repeat
return void

//encode a single character and put pixels for it on screen
function encodecharpixel(char, x,y)
	value = chrVal(char)  
	bit1 = value & 1
	bit2 = (value >> 1) & 1 
	bit3 = (value >> 2) & 1
	bit4 = (value >> 3) & 1
	bit5 = (value >> 4) & 1
	bit6 = (value >> 5) & 1
	bit7 = (value >> 6) & 1
	bit8 = (value >> 7) & 1
				
	box(x,y, 1,1, {bit1, bit1, bit1, 1}, false) 
	box(x+1,y, 1,1, {bit2, bit2, bit2, 1}, false)
	box(x+2,y, 1,1, {bit3, bit3, bit3, 1}, false)
	box(x+3,y, 1,1, {bit4, bit4, bit4, 1}, false)
	box(x+4,y, 1,1, {bit5, bit5, bit5, 1}, false)
	box(x+5,y, 1,1, {bit6, bit6, bit6, 1}, false)
	box(x+6,y, 1,1, {bit7, bit7, bit7, 1}, false)
	box(x+7,y, 1,1, {bit8, bit8, bit8, 1}, false)
return void

//put all characters on screen 
//calulate crc etc
function encodetext(text)
	var x = 0
	var y = 0
	var i = 0
	var lentext = len(text)
	crc = 0xF * 0x11111111
	
	for i = 0 to lentext step 1 loop		
		char = text[i]
		ord = chrVal(char)
		crc = ( crc >> 8 ) ^ table[( crc & 0xFF ) ^ ord]

		encodecharpixel(char,x,y)
		x += 8
		if x >= screenwidth then
			x = 0
			y += 1
			update()
			if y >= screenheight then

				while !( (!prevc.a and c.a) or ((prevkey == "") and (keyb != "")))  loop
					prevc = c
					c = controls(0)
					prevkey = keyb
					keyb = getKeyboardBuffer()
					update()
				repeat
				
				prevkey = keyb 				
				prevc = c
				crc ^= 0xF * 0x11111111
				
				while !((!prevc.a and c.a) or ((prevkey == "") and (keyb != "")))  loop
					clear()
					prevkey = keyb
					keyb = getKeyboardBuffer()
					prevc = c
					c = controls(0)
					print("crc:", crc)
					update()
				repeat
				
				crc = 0xF * 0x11111111
				y = 0
				clear()
			endif
		endif
	repeat
	crc ^= 0xF * 0x11111111
	prevkey = keyb
	prevc = c
return void

var c = controls(0)
var prevc = c
var keyb = getKeyboardBuffer()
var prevkey = keyb	
var table = []
var crc = 0


test = "
<put multiline code here with adapted double quotes (see comments above)>
" 

initcrctable()
encodetext(test)

while !( (!prevc.a and c.a) or ((prevkey == "") and (keyb != "")))  loop
	prevc = c				
	c = controls(0)
	prevkey = keyb
	keyb = getKeyboardBuffer()
	update()
repeat

loop
	clear()
	print("crc: ", crc)
	update()
repeat