Added mode-management and second ghost

src/main/java/se/urmo/game/state/PlayingState.java

@@ -16,29 +16,30 @@ import java.awt.event.KeyEvent;
 public class PlayingState implements GameState {
     private final Game game;
     private final GameStateManager gameStateManager;
-    private final Ghost ghost;
+    private final GhostManager ghostManager;
     private PacMan pacman;
     @Getter
     private GameMap map;
+
     public PlayingState(Game game, GameStateManager gameStateManager) {
         this.game = game;
         this.gameStateManager = gameStateManager;
         this.map = new GameMap();
         this.pacman = new PacMan(game, new CollisionChecker(map));
-        this.ghost = new Ghost(game, new GhostCollisionChecker(map), new BlinkyStrategy());
+        this.ghostManager = new GhostManager(new GhostCollisionChecker(map));
     }
 
     @Override
     public void update() {
         pacman.update();
-        ghost.update(pacman);
+        ghostManager.update(pacman);
     }
 
     @Override
     public void render(Graphics2D g) {
         map.draw(g);
         pacman.draw(g);
-        ghost.draw(g);
+        ghostManager.draw(g);
     }
 
     @Override