The way cartesian coordinations are presented and used is kinda confusing.
When working with 2D the vertical axis is Y, though when working with 3D the vertical axis is Z and Y becomes the "depth" axis.
Basically I'm thinking the correct way, and best way would be to use the layout of axis.
Though Blender (3D modelling program) and other program, a lot games, present the axis in the "weird order" (my opinion)
Also if you read on Wikipedia about cartesian coordinates, your are presented with that layout of axis.
Is there any specific or logical reason for this "flip" of axis?