Core is realy wait for work and test

Aliens create, wavetrace work, towers build, aliens move - thats all by
now.
I think it is time to write Graphic and Network modules.

aliens.h

@@ -12,20 +12,21 @@ Q_OBJECT
 public:
 	explicit Aliens(Game_Data * gd, QObject *parent = 0);
 	void AddAlien(int srcId);
-	void DelAlienById(int Id);
-	void DelAlien(int index);
-	void retrace();
 	void nextWave();
 	void update();
+	int AlienIndex(int alienId);
 	int size() const {return gameData->curAliens.size();}
 signals:
-	void AlienFinish();
+
 public slots:
-	//void getDamage(float dmg);
+	void DelAlienById(int Id);
+	void DelAlien(int index);
+	void retrace(bool * OK);
 private:
 	Game_Data * gameData;
 	QPointF globStart;
 	QPointF globFinish;
+	int nextId;
 };
 
 #endif // ALIENS_H