bitsy custom exit effect

interlace.js

{
	showPlayerStart: true,
	showPlayerEnd: true,
	duration: 180,
	frameRate: 60,
	pixelEffectFunc: function (start, end, pixelX, pixelY, delta) {
		var a = start.Image.GetPixel(pixelX, pixelY);
		var b = end.Image.GetPixel(pixelX, pixelY);
		var w = bitsy.tilesize * bitsy.mapsize;
		if (pixelY % 2) {
			if (pixelX < delta * 2 * w) {
				return b;
			}
		} else {
			if (pixelX < (delta - 0.5) * 2 * w) {
				return b;
			}
		}
		return a;
	},
}