View difference between Paste ID: uWBTsZng and zChuNkbi

 public class Screen {
 
 	public int width, height;
 	public int[] pixels;
 	public final int MAP_SIZE = 64;
 	public final int MAP_SIZE_MASK = MAP_SIZE - 1;
 	public int xOffset, yOffset;
 	public int[] tiles = new int[64 * 64];
 	private Random random = new Random();
 
 	public Screen(int width,int height) {
 		this.width = width;
 		this.height = height;
 		pixels = new int[width * height]; // 50,400
 
 		for (int i =0; i < MAP_SIZE * MAP_SIZE; i++) {
 			tiles[i] = random.nextInt(0xffffff);
 		}
 	}
 
 	public void clear() {
 		for(int i = 0; i < pixels.length; i++){
 			pixels[i] = 0;
 		}
 	}
 
 	public void renderTile(int xp, int yp, Tile tile){
 		xp -= xOffset;
 		yp -= yOffset;
 		for (int y = 0; y < tile.sprite.SIZE; y++){
 			int ya = y + yp;
 			for (int x = 0; x < tile.sprite.SIZE; x++){
 				int xa = x + xp;
 				if(xa < -tile.sprite.SIZE || xa >= width || ya < 0 || ya >= height) break;
 				if(xa < 0) xa = 0;
 				if(ya < 0) ya = 0;
 				pixels[xa + ya * width] = tile.sprite.pixels[x + y * tile.sprite.SIZE];
 			}
 		}
 	}
 
 	public void setOffset(int xOffset, int yOffset) {
 		this.xOffset = xOffset;
 		this.yOffset = yOffset;
 	}
 
 }