how to do

@Override
   public void onTurn(int turnDelay){
       snake.move(apple);
       if(apple.isAlive == false){
          score += 5;
          setScore(score);
          turnDelay -= 10;
          setTurnTimer(turnDelay);
           createNewApple();
       }
       if(!snake.isAlive){
           gameOver();
       }
       if(snake.getLength() > GOAL){
           win();
       }
       drawScene();
       //snake.move(apple);
   }