used preferred back buffer height and width intersection is not working properly

Question

i wanted to develop a game which can support all types of display sizes, so i am using following code to multiscale.

   graphics.PreferredBackBufferHeight = 768;
   graphics.PreferredBackBufferWidth = 1024;
   shootrect = new Rectangle( 900,650  , 100, 100);
   touchrect = new Rectangle(mouse.X, mouse.Y, 0, 0);

         if (mouse.LeftButton == ButtonState.Pressed && !jump && shootrect.Intersects(touchrect))
            {
                jump = true; 
            }

using this code i am trying to intersect the mouse coordinates with shootrect (which is shoot button for make player to jump) if i touch in that rect intersection is working but somewhere else in the same width and height touch is working

when i remove graphics.PreferredBackBufferHeight = 768; graphics.PreferredBackBufferWidth = 1024; those lines from code intersection is working fine but my scaling is not proper for other size of screens

Answer 1

actually graphics.PreferredBackBufferHeight = 768; graphics.PreferredBackBufferWidth = 1024; because of this rectangle intersection is working properly if set my screens resolution to 1024 x768 then it works well but my resoolution is 1980x1020 so its not working

Answer 2

You need to scale your logic by hand (rectangles for instance) if you use those magic numbers creating them. I suggest create those relative to the screen width and height.