Game

..
public class Game extends Canvas implements Runnable {
        ..
    private WaterTile water;

    ..
        public Game() {
      ..
      water = new WaterTile(null);
      ..
    }

        ..
    public void run() {
        ..
        int updates = 0;
        requestFocus();
        while (running) {
            ..
            while (delta >= 1) {
                update();
                updates++;
                delta--;
            }
                        ..
        }
        stop();
    }

    public void update() {
        ..
        water.update();
    }

    ..
    public static void main(String[] args) {
        Game game = new Game();
           ..
        game.start();
    }
}