[SDL] OFF Topic Iso Mouse

[Alan Wolfe]

I myself haven't worked with iso before but you know a great place to ask
general game programming questions is the gameprogrammer.com mailing list,
you should go check it out (:

 

  _____  

From: sdl-bounces at lists.libsdl.org [mailto:sdl-bounces at lists.libsdl.org] On
Behalf Of Patricia Curtis
Sent: Wednesday, April 25, 2007 6:28 PM
To: sdl at lists.libsdl.org
Subject: [SDL] OFF Topic Iso Mouse

 

Hi Guys

         Sorry for an off topic question but i need help with some maths and
i sure some of you have a better maths background than me, I am writing an
isometric game (not tile based) and i translate my screen mouse to isometric
no problem as i am easily working out the x and z cords on the floor of my
isometric room with, 

 

ClickX = (int)((2*Mousey-Mousex)/2);

ClickZ = (int)Mousex+ClickX; 

 

then i check to see if its within my room box with a simple box check and it
works a treat, but when the mouse is beyond the bounds of the room floor
area shown in blue it could be on a wall so i need to work out the mouse
position on the vertical walls green and red. 

 

so if anyone can help me i would be grateful, 

 

Trish

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