added an ArrayList of Player in game and added the received methods in clientgamelogic

Projekte/mdga/model/src/main/java/pp.mdga/game/Game.java

@@ -19,6 +19,7 @@ public class Game {
     private Board board;
     private Color activeColor;
     private List<Color> order;
+    private final ArrayList<Player> playerList = new ArrayList<>(4);
 
     private final ArrayList<Observer> observers = new ArrayList<>();
     private Player startPlayer;
@@ -400,4 +401,16 @@ public Piece getPieceThroughIdentifier(String identifier) {
         int index = Integer.parseInt(parts[1]);
         return board.getPlayerData().get(color).getPieces()[index];
     }
+
+    public ArrayList<Player> getPlayerList() {
+        return playerList;
+    }
+
+    public void addPlayerToList(Player player) {
+        playerList.add(player);
+    }
+
+    public void removePlayerFromList(Player player) {
+        playerList.remove(player);
+    }
 }