How to collision detection with code

Hi There!

How to collision detection with only code But without using OnCollisionEnter or any build-in function
I just wanted to know how to check a collision hit with a collider by script in C#
such as (collisionA collision with collisionB )

I had used to created a basic collision with code by use it's position and it's hit distance
but! if it's has a big collision it need to be closed, so it not work like I need.

I don't want to use a build-in function like OnCollistionEnter or OnTriggerEnter or any function.

Thanks!!!

 

You would have to use the various physics functions. Physics.Raycast, Physics.SphereCast(), etc.

 

Wow Thank you very much I can made it now!!!

 

https://docs.unity3d.com/ScriptReference/Physics.html

by the way, collision check functions are listed on this page among the "static methods".