Question by ddule · Oct 07, 2021 at 11:49 AM · 3d platformer character controller

Troubles making custom 3D character controller (for platformer)

My main goal is creating a 3D platformer.

By using Unity's character controller I had troubles implementing features like moving platforms and rotating platforms which needs to move/push and rotate players in expected way. I was not satisfied with the attemps I made with the Unity's character controller so I've decided to make my own.

So I'm basically not asking how to implement specific thing , just am I at the right way.

So , when I was developing the custom character controller I found out that you can't manually check collisions and get Collision data in regular way. I found the only options were functions like Physics.OverlapCapsule which returns the Colliders (which are objects) with which the virtual capsule has collided. One of the problems which has occured is that I cannot get the Collision point which I need to check is the platform ground or ceiling, if it is ground I move player upwards otherwise downwards.

So my questions are next:
1. Am I too optimistic with creating custom character controller (Is it a good idea).
2. Am I creating the custom character controller the right way (with overlapcapsule)
3. And if it isn't a good idea what is the better way to implement 3D platformer and moving / rotating platforms

Just to get the right feeling what I am trying, I will put some parts of the my character controller.

   public bool PlayerCollisionCheck()
 {   
     return Physics.CheckCapsule(transform.position + Vector3.down*0.5f, transform.position + Vector3.up * 0.5f, 0.5f);
 }

  public void PlayerYCollision(float oldVelY)//this solves if player is in ground or in ceiling
     {
         int counter = 0;
         while (PlayerCollisionCheck() && counter++ < 100)
         {
             ySpeed = 0;
             if (oldVelY < 0)
             {
                 transform.Translate(Vector3.up * 0.01f, Space.World);
                 isGrounded = true;
             }
             else
             {
                 transform.Translate(Vector3.up * -0.01f, Space.World);
             }
         }
     }

Because of this way I cannot use the events(messages) like oncollisionenter, because I cannot solve them when more than one collisions occurs at the same frame.

The current version I made, have problems when you're touching ceiling and ground at the same time , you get teleported to top of the ceiling.

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