How to make a groundCheck for a mobile 3D game and its character controller?

Question

C++ / C#

Hi, I tried to check the speed and combine it with the speed with raycast everywhere there is a bool variable hanging, can anyone have a checked piece of code to check (on the ground or not), please share. I almost won in writing my own controller, all that remains is this and animation
Video of the controller itself

Answer 1

there is a hanging bool variable

Shtaaa? Variable hanging? What is it like?
In fact: either raycast down, or the intersection of colliders (for example, the character and the ground) are the fastest ways to implement.