public void draw() {
		for (int j = 0; j < height; j ++) {
			for (int i = 0; i < width; i ++) {
				Graphics.setColour(128, 128, 128);
				Graphics.rectangle(true, i * TILE_SIZE, j * TILE_SIZE, TILE_SIZE, TILE_SIZE);
				Graphics.setColour(64, 64, 64);
				Graphics.rectangle(false, i * TILE_SIZE, j * TILE_SIZE, TILE_SIZE, TILE_SIZE);
			}
		}
		for (Pellet p : pellets) {
			Graphics.setColour(128, 255, 128);
			Graphics.circle(true, (p.x + 0.5) * TILE_SIZE, (p.y + 0.5) * TILE_SIZE, 4);
		}
		for (Bullet b : bullets) {
			b.draw();
		}
	}