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.

towers.h

@@ -10,9 +10,11 @@ class Towers : public QObject
 Q_OBJECT
 public:
 	explicit Towers(Game_Data * gd, QObject *parent = 0);
-	void AddTower(int srcId);
+	bool AddTower(int playerId, int srcId, QPoint pos);
 	void DelTowerById(int Id);
+	void DelTowerByPos(QPoint pos);
 	void DelTower(int index);
+	int TowerIndex(int towerId);
 	void update();
 	int size() const {return gameData->curTowers.size();}
 signals:
@@ -21,6 +23,8 @@ public slots:
 
 private:
 	Game_Data * gameData;
+
+	int nextId;
 };
 
 #endif // TOWERS_H