Coordinates in 3D

[wezu]

If the map is on a flat plane you can use this snippet to find where the mouse ray and plane intersect:

Super-fast mouse ray collisions with ground plane

I was shocked to learn that many users do not know about the existence of many useful mathematical classes and functions that Panda provides. Thus, many users use Panda’s collision system if they want to detect where a mouse ray hit a ground plane (for point-n-click movement in a 2d world) etc etc. Thus, I quickly threw this snippet together that shows how to use the Plane class to calculate the intersection point with a mouse line. Super-fast. (Note that there are many more uses to this.) fro…

If the map is on a 2d gui element (or something alike) you just need the mouse pointer position in the window and where the frame showing the map is.

If the map is some sort of 3D object then you can either do typical collision detection or some sort of magic with a pixel sized buffer under the cursor.