add remove all Controllers by destroy

src/main/java/de/hsfulda/onses/controllers/AppController.java

@@ -8,6 +8,7 @@ import javafx.scene.Parent;
 import javafx.scene.control.Button;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Objects;
 
 public class AppController implements Controller {
@@ -15,13 +16,16 @@ public class AppController implements Controller {
     private final GameService gameService;
     private final App app;
 
+    private final ArrayList<Controller> controllers = new ArrayList<>();
+
     public AppController(App app, GameService gameService) {
         this.app = app;
-         this.gameService = gameService;
+        this.gameService = gameService;
     }
     @Override
     public Parent render() throws IOException {
-        GameController gameController = new GameController(gameService);
+        GameController gameController = new GameController(app, gameService);
+        controllers.add(gameController);
         final Parent parent = FXMLLoader.load(Objects.requireNonNull(Main.class.getResource("views/app.fxml")));
         Button button = (Button) parent.lookup("#startGameBtn");
 
@@ -38,6 +42,11 @@ public class AppController implements Controller {
 
     @Override
     public void destroy() {
+        int i = 0;
 
+        while(i < controllers.size()) {
+            Controller controller = controllers.get(i++);
+            controller.destroy();
+        }
     }
 }

src/main/java/de/hsfulda/onses/controllers/GameController.java

@@ -1,5 +1,6 @@
 package de.hsfulda.onses.controllers;
 
+import de.hsfulda.onses.App;
 import de.hsfulda.onses.Main;
 import de.hsfulda.onses.models.Card;
 import de.hsfulda.onses.models.Game;
@@ -9,13 +10,21 @@ import javafx.scene.Parent;
 import javafx.scene.control.Button;
 import javafx.scene.layout.Pane;
 
+import java.beans.PropertyChangeEvent;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Objects;
 
 public class GameController implements Controller {
     private final GameService gameService;
     private final Game game;
-    public GameController(GameService gameService) {
+    private final App app;
+
+    private PropertyChangeEvent lastPlayedCardPropertyChangeEvent;
+
+    private final ArrayList<Controller> controllers = new ArrayList<>();
+    public GameController(App app, GameService gameService) {
+        this.app = app;
         this.gameService = gameService;
         this.game = gameService.getGame();
     }
@@ -27,20 +36,31 @@ public class GameController implements Controller {
         final Pane playerPane = (Pane) parent.lookup("#playerPane");
         final Button playButton = (Button) parent.lookup("#playCardBtn");
         final Button drawCardButton = (Button) parent.lookup("#drawCardBtn");
+        final Button exitGameButton = (Button) parent.lookup("#exitBtn");
 
         CardController lastPlayedCardController = new CardController(game.getLastPlayedCard(), null);
         PlayerController playerController = new PlayerController(gameService.getGame().getPlayerService().getPlayerList().getFirst());
         PlayerController enemyController = new PlayerController(gameService.getGame().getPlayerService().getPlayerList().getLast());
 
+        controllers.add(lastPlayedCardController);
+        controllers.add(playerController);
+        controllers.add(enemyController);
+
         game.listeners().addPropertyChangeListener(Game.PROPERTY_LAST_PLAYED_CARD, e -> {
             lastPlayedCardPane.getChildren().removeAll();
             try {
-                lastPlayedCardPane.getChildren().add(new CardController((Card) e.getNewValue(), null).render());
+                CardController tmp = new CardController((Card) e.getNewValue(), null);
+                controllers.add(tmp);
+                lastPlayedCardPane.getChildren().add(tmp.render());
             } catch (IOException ex) {
                 throw new RuntimeException(ex);
             }
         });
 
+        exitGameButton.setOnAction(e -> {
+            app.show(new AppController(app, new GameService()));
+        });
+
         playButton.setOnAction(e -> {
             Card cardToPlay = game.getPlayerService().getPlayerList().getFirst().getCurrentCard();
             if(gameService.legalMove(cardToPlay)) {
@@ -70,6 +90,11 @@ public class GameController implements Controller {
 
     @Override
     public void destroy() {
+        int i = 0;
 
+        while(i < controllers.size()) {
+            Controller controller = controllers.get(i++);
+            controller.destroy();
+        }
     }
 }

src/main/java/de/hsfulda/onses/controllers/PlayerController.java

@@ -9,11 +9,13 @@ import javafx.scene.control.Label;
 import javafx.scene.layout.HBox;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Objects;
 
 public class PlayerController implements Controller {
 
     private final Player player;
+    private final ArrayList<Controller> controllers = new ArrayList<>();
 
     public PlayerController(Player player) {
         this.player = player;
@@ -25,7 +27,9 @@ public class PlayerController implements Controller {
         final HBox cards = (HBox) parent.lookup("#cardsHBox");
 
         for(Card card : player.getPlayerDeck()) {
-            cards.getChildren().add(new CardController(card, player).render());
+            CardController newCardController = new CardController(card, player);
+            controllers.add(newCardController);
+            cards.getChildren().add(newCardController.render());
         }
 
         player.listeners().addPropertyChangeListener(Player.PROPERTY_PLAYER_DECK, e -> {
@@ -51,6 +55,11 @@ public class PlayerController implements Controller {
 
     @Override
     public void destroy() {
+        int i = 0;
 
+        while(i < controllers.size()) {
+            Controller controller = controllers.get(i++);
+            controller.destroy();
+        }
     }
 }