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Question by JaroslawChrobak · Aug 02, 2019 at 09:36 AM · collisioncollision detectioncarwheelcollider

Car wheel not detecting ground

Hello, here's my script that is attached to every wheel:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class check_ifgrounded : MonoBehaviour
 {
     void OnCollisionEnter(Collision collision)
     {
         GameObject.Find("CAR").GetComponent<Driving>().wheels_grounded = GameObject.Find("CAR").GetComponent<Driving>().wheels_grounded + 1;
     }
     void OnCollisionExit(Collision collision)
     {
         GameObject.Find("CAR").GetComponent<Driving>().wheels_grounded = GameObject.Find("CAR").GetComponent<Driving>().wheels_grounded - 1;
     }
 }
 

and that's a problem: "wheels_grounded" value is always showing "0", what I'm doing wrong?

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Answer by suIly · Aug 02, 2019 at 09:41 AM

One of the gameObjects that you are colliding with has to have a rigidbody attached to it in order to detect collisions.

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