Wheel colliders collision detection

Hello.

I created the following:


Root(rigidbody with 2 wheel colliders).

I attached this script to the root:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CollisionTest : MonoBehaviour
5. {
6.     private void OnCollisionEnter(Collision other)
7.     {
8.         Debug.Log("OnCollisionEnter (" + other.gameObject + ")");
9.     }
10.  
11.     private void OnCollisionExit(Collision other)
12.     {
13.         Debug.Log("OnCollisionExit (" + other.gameObject + ")");
14.     }
15. }

So.. When running the scene they are falling, bumping away and.. no debug log. No collision detected.

What am I doing wrong ?

 

This: https://docs.unity3d.com/ScriptReference/WheelCollider.GetGroundHit.html
Read docs more.

 

To say the truth I read about this method and not paid attention to it because I thought it is for some unique situations. To control if the car is touching the ground or not I should every tick call that function for every wheel ?

 

You will have a hit variable and the ref return from that function will fill in that variable. So you pre allocate it. It is not an expensive call.

 

Thank you!