clear
tileSetLength = 32
width = 320
height = 240
cellSize = [960/width, 600/height]
colors = [color.black, color.white]

newImg = function
	img = Image.create(tileSetLength, 1)
	for i in range(0, tileSetLength - 1)
		img.setPixel i, 0, colors[rnd * 2]
	end for
	return img
end function

display(5).mode = displayMode.tile
td = display(5)
td.cellSize = cellSize
td.extent = [width, height]
td.tileSetTileSize = 1
for x in range(0, width - 1)
	for y in range(0, height - 1)
		td.setCell x, y, rnd * tileSetLength
	end for
end for
frames = 0
startTime = time
while true
	td.tileSet = newImg
	frames += 1
	dt = time - startTime
	if dt >= 1 then
		text.row = 25; print "FPS: " + round(frames / dt, 2)
		frames = 0
		startTime = time
	end if
end while