I'd like to create a game with a half top-down (2d RPG) view (I don't know the exact name of it). It would be 2d, but I'd like to add 3d-like collisions. For example:
If the grenade lands on the roof, it would roll down and fall. Or if it hits a wall, it would bounce back.
I've never worked with this view, that's why I'm asking for advices for how to do proper collisions and physics. I don't want to use any external libraries.
Thanks in advance!