fix?

src/ui/view/MyCanvas.java

@@ -344,8 +344,8 @@ public class MyCanvas extends JPanel implements MouseListener, MouseMotionListen
 							x = e.getX() - controller.getScaleDiv2();
 							y = e.getY() - controller.getScaleDiv2();
 						} else {
-							x = e.getX() - (cps.getPosition().x - e.getX()) - controller.getScaleDiv2();
-							y = e.getY() - (cps.getPosition().y - e.getY()) - controller.getScaleDiv2();
+							x = e.getX() + (cps.getPosition().x - e.getX()) ;
+							y = e.getY() + (cps.getPosition().y - e.getY()) ;
 						}
 
 						if (x < controller.getScaleDiv2())