few optimization and find aim for towers

ad_graphics.cpp

@@ -1,4 +1,5 @@
 #include "ad_graphics.h"
+#include <QGLWidget>
 
 
 AD_Graphics::AD_Graphics(AD_Core *adcore, QWidget *parent) : QGraphicsView(parent)
@@ -10,7 +11,9 @@ AD_Graphics::AD_Graphics(AD_Core *adcore, QWidget *parent) : QGraphicsView(paren
 	setAlignment(Qt::AlignLeft | Qt::AlignTop);
 	scene = new QGraphicsScene();
 	setScene(scene);
-	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+	//setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
+	//setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+	//setDragMode(RubberBandDrag);
 	//gsw = new QGraphicsWidget();
 	//scene->addWidget(new QPushButton());