added classes for client and server state machine

- a client state machine consits out of a 'ClientState' (every state of the machine) and a 'ClientStateMachine' (every state, which consists out of states), the machine starts with the ClientAutomaton
- analog for server
- started to implement logic for the server, transition from 'Lobby' to 'GameState'

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

@@ -1,8 +1,8 @@
 package pp.mdga.game;
 
-import java.util.ArrayList;
-import java.util.LinkedList;
-import java.util.Map;
+import java.util.*;
+
+import pp.mdga.server.Observer;
 
 /**
  * The Game class represents the game state of the Ludo game.
@@ -12,7 +12,7 @@
 public class Game {
     private int diceModifier = 1;
     private int diceEyes;
-    private Map <Color, Player> players;
+    private Map<Color, Player> players = new HashMap<Color, Player>();
     private Statistic gameStatistics;
     private ArrayList<BonusCard> drawPile;
     private ArrayList<BonusCard> discardPile = new ArrayList<>();
@@ -21,13 +21,17 @@ public class Game {
     private LinkedList<Color> order;
     private Map<Color, Integer> playerConnectionID;
 
+    private ArrayList<Observer> observers = new ArrayList<>();
+    private Boolean gameHasStarted = false;
+    private Boolean playerHasDisconnected = false;
+
     private static final int AMOUNT_OF_TURBO_CARDS = 16;
     private static final int AMOUNT_OF_SHIELD_AND_SWAP_CARDS = 12;
 
     /**
      * This constructor creates a new Game object.
      */
-    public Game(){
+    public Game() {
         gameStatistics = new Statistic();
         drawPile = new ArrayList<>();
         for (int i = 0; i < AMOUNT_OF_TURBO_CARDS; i++) {
@@ -223,7 +227,7 @@ public void setPlayerConnectionID(Map<Color, Integer> playerConnectionID) {
     /**
      * This method sets the player connection ID.
      *
-     * @param color the color of the player
+     * @param color        the color of the player
      * @param connectionID the new connection ID
      */
     public void setPlayerConnectionID(Color color, int connectionID) {
@@ -243,7 +247,7 @@ public int getPlayerConnectionID(Color color) {
     /**
      * This method adds a player to the game.
      *
-     * @param color the color of the player
+     * @param color  the color of the player
      * @param player the player to be added
      */
     public void addPlayer(Color color, Player player) {
@@ -258,4 +262,71 @@ public void addPlayer(Color color, Player player) {
     public void removePlayer(Color color) {
         players.remove(color);
     }
+
+    /**
+     * This method adds an observer to the game.
+     *
+     * @param observer the observer to be added
+     */
+    public void addObserver(Observer observer) {
+        observers.add(observer);
+    }
+
+    /**
+     * This method removes an observer from the game.
+     *
+     * @param observer the observer to be removed
+     */
+    public void removeObserver(Observer observer) {
+        observers.remove(observer);
+    }
+
+    /**
+     * This method returns the game has started.
+     *
+     * @return the game has started
+     */
+    public Boolean getGameHasStarted() {
+        return gameHasStarted;
+    }
+
+    /**
+     * This method sets the game has started.
+     *
+     * @param gameHasStarted the new game has started
+     */
+    public void setGameHasStarted(Boolean gameHasStarted) {
+        this.gameHasStarted = gameHasStarted;
+        if (gameHasStarted) notifyObservers();
+    }
+
+    /**
+     * This method returns the player has disconnected.
+     *
+     * @return the player has disconnected
+     */
+    public Boolean getPlayerHasDisconnected() {
+        return playerHasDisconnected;
+    }
+
+    /**
+     * This method sets the player has disconnected.
+     *
+     * @param playerHasDisconnected the new player has disconnected
+     */
+    public void setPlayerHasDisconnected(Boolean playerHasDisconnected) {
+        this.playerHasDisconnected = playerHasDisconnected;
+        if (playerHasDisconnected) {
+            notifyObservers();
+        }
+    }
+
+    /**
+     * This method notifies the observers.
+     */
+    public void notifyObservers() {
+        for (Observer observer : new ArrayList<>(observers)) {
+            observer.update();
+        }
+    }
 }

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

@@ -79,4 +79,13 @@ public BonusCard removeHandCard(BonusCard card) {
         }
         return cardToRemove;
     }
+
+    /**
+     * Returns the id of the connection to the client represented by this player.
+     *
+     * @return the id
+     */
+    public int getId() {
+        return id;
+    }
 }