importPackage(Packages.java.io)
importPackage(Packages.java.awt)
importPackage(Packages.java.awt.image)
importPackage(Packages.java.awt.geom)
importPackage(Packages.javax.imageio)

function loadImage(ref) {
	var bimg;
	try {
		// read images from desktop folder
		bimg = ImageIO.read(new File(System.getProperty("user.home") +File.separator+"Desktop"+File.separator+ ref));
		//context.info(bimg)
	}
	catch(e) {
		e.printStackTrace();
	}
	return bimg;
}

function makeColorTransparent(ref, color) {  
	image = loadImage(ref);  
	dimg = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB);  
	g = dimg.createGraphics();  
	g.setComposite(AlphaComposite.Src);  
	g.drawImage(image, null, 0, 0);  
	g.dispose();  
	for(i = 0; i < dimg.getHeight(); i++) {  
		for(j = 0; j < dimg.getWidth(); j++) {  
			if(dimg.getRGB(j, i) == color.getRGB()) {  
				dimg.setRGB(j, i, 0x8F1C1C);  
			}
		}
	}
	return dimg;
}

function splitImage(img, cols, rows) {
	var w = img.getWidth()/cols;
	var h = img.getHeight()/rows;
	var num = 0;
	imgs = new Array();
	for(y = 0; y < rows; y++) {
		for(x = 0; x < cols; x++) {
			imgs[num] = new BufferedImage(w, h, img.getType());
			g = imgs[num].createGraphics();
			g.drawImage(img, 0, 0, w, h, w*x, h*y, w*x+w, h*y+h, null);
			g.dispose();
			num++;
		}
	}
	return imgs;
}

var tiles
var r = {
	initialize: function(ds, fg, bg) {
		var sprite = makeColorTransparent("mario2.png", new Color(0x007300)) // firefox and java2d have different color values?
		tiles = splitImage(sprite, 6, 4)
	},
	render : function(g, size) {
		var xoffset = 0, yoffset = 0
		for(i in tiles) {
			if(i % 8 == 0) {
				if(i != 0)
				yoffset += 1
				xoffset = 0
				//context.info(i + ", "+yoffset)
			}
			g.drawImage(
				tiles[i],
				tiles[i].getWidth()*xoffset,
				tiles[i].getHeight()*yoffset,
				tiles[i].getWidth(),
				tiles[i].getHeight(),
				null
			)
			xoffset++
			//g.drawString("test", 10*i, 20)
		}
	}
}

context.getDarkstar().setRenderer(new D2DAdapter(r))