public TickResult tick() {
		SnakeElement head = getSnakeHead();
		if (Direction.DOWN.equals(currentdirection)) {
			snakeBody.add(new SnakeElement(head.getX(), head.getY() + 1));
		} else if (Direction.RIGHT.equals(currentdirection)) {
			snakeBody.add(new SnakeElement(head.getX() + 1, head.getY()));
		} else if (Direction.LEFT.equals(currentdirection)) {
			snakeBody.add(new SnakeElement(head.getX() - 1, head.getY()));
		} else if (Direction.UP.equals(currentdirection)) {
			snakeBody.add(new SnakeElement(head.getX(), head.getY() - 1));
		}
		remove = true;
		head = getSnakeHead();
		if (head.getX() >= GAME_FIELDS || head.getX() <= -1 || head.getY() >= GAME_FIELDS || head.getY() <= -1) {
			return TickResult.GAME_OVER;

		}
		if (head.getX() == food.getX() && head.getY() == food.getY()) {
			remove = false;
		}
		return TickResult.RUNNING;

	}