Wieso werden Fehler angezeigt?

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Ich haben alles gemacht lt. Anweisung, trotzdem komme ich nicht weiter. - The Snake class must have a private List<GameObject> snakeParts field that is initialized with a new ArrayList<> when it is declared Ich habe in der Snake-Classe das List<GameObject> Feld zugefügt. Habe es sogar auf ArrayList<GameObject> bzw. private ArrayList<GameObject> geändert. wird immer noch als Fehler angezeigt. - The constructor must create three GameObjects with the following arguments: first - (x, y); second - (x + 1, y); third - (x + 2, y). Ich habe die 3 GameObjecte erstellt. Trotzdem als Fehler markiert. Warum? - The GameObjects created in the constructor must be added to the snakeParts list in order: first, second, third. Habe die 3 GameObjects der ArrayList zugefügt. Trotz als Fehler markiert, warum? Ich habe die Snake-Class mit und ohne extends GameObject ausprobiert. Ändert leider nichts.

Now let's tackle the snake, and we'll remove the test creation and drawing of the apple in the createGame() method.

Create a Snake class. The snake will consist of several cells, i.e. several GameObjects. What's more, the number of cells can vary: the snake grows longer when it eats apples. We'll store a list of all snake segments in a List<GameObject> snakeParts field.

Add a constructor to the Snake class that creates three snake segment all at once.

Requirements:

The SnakeGame class's createGame() method must not create a new apple.
There must be a public Snake class.
The Snake class must have one public constructor with two int parameters (x and y).
The Snake class must have a private List<GameObject> snakeParts field that is initialized with a new ArrayList<> when it is declared.
The constructor must create three GameObjects with the following arguments: first - (x, y); second - (x + 1, y); third - (x + 2, y).
The GameObjects created in the constructor must be added to the snakeParts list in order: first, second, third.

package com.codegym.games.snake; import com.codegym.engine.cell.*; public class Apple extends GameObject { private static final String APPLE_SIGN = "\uD83C\uDF4E"; public Apple(int x, int y) { super(x,y); // hiermit wird das GameObject(x,y) aufgerufen! } public void draw(Game game) { game.setCellValueEx(x, y, Color.NONE, APPLE_SIGN, Color.DARKRED, 75); } }

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Beastenjahrn

Level 15 , Germany, Germany

18 August 2023, 21:49

Danke. Aber wie bereits gesagt, ändert dies leider auch nichts. Auch ohne extends GameObject werden die gleichen Fehler angezeigt.

Guadalupe Gagnon

Level 37 , Tampa, United States

18 August 2023, 22:03

did you fix the constructor to get rid of super(x, y)?

Guadalupe Gagnon

Level 37 , Tampa, United States

18 August 2023, 22:09

also remove super.intialize() in the SnakeGame class

Guadalupe Gagnon

Level 37 , Tampa, United States

18 August 2023, 22:12

solution

and the constructor in Snake needs to be public

Beastenjahrn

Level 15 , Germany, Germany

19 August 2023, 06:58

Making the snake class private was the mistake. With public it works now. Thanks.

Guadalupe Gagnon

Level 37 , Tampa, United States

18 August 2023, 18:29

The Snake class is not a GameObject, it is a holder for the body of the sake which consists of GameObjects. Therefore it should not extend GameObject.