Fix mouse support in menus and first screen

JGE/include/JGui.h

@@ -58,7 +58,7 @@ public:
     virtual bool ButtonPressed(); // action button pressed, return false to ignore
 
     // Used for mouse support so that the GUI engine can found out which Object was selected
-    virtual bool getTopLeft(int& top, int& left)
+    virtual bool getTopLeft(float& top, float& left)
     {
         return false;
     }

JGE/src/JGui.cpp

@@ -162,7 +162,7 @@ bool JGuiController::CheckUserInput(JButton key)
         {
             for (int i = 0; i < mCount; i++)
             {
-                int top, left;
+                float top, left;
                 if (mObjects[i]->getTopLeft(top, left))
                 {
                     distance2 = (top - y) * (top - y) + (left - x) * (left - x);