Stopping moving object going through a wall

make sure the collider on the wall is stretched out across the whole mesh.

A few things to check before I can really help

1. Post some code for us :) (The code you use to move your cube)

2. Check your cube has a rigid body

3. Check both the cube and the wall have a collider

4. Check the colliders are not triggers

5. How are you moving the cube? changing transform.position will not take collision into account until after the transformation.

6. Try using rigidbody.AddForce or rigidbody.SetVelocity to move your cube, this will take collision into account. (If you use this makesure you do it in FixedUpdate() and not Update()

Get back to me and I'll try and offer some more help

Yes, I did make sure of that and still not stopping it from going through the wall.

Thanks Exalia for offering your help, please have a lock below about my code that I am using to move my object:

ar smooth : float = 1.0; // Deter$$anonymous$$es how quickly object moves towards position private var targetPosition : Vector3; var speed : float = 60.0;

function Start() { targetPosition = transform.position; }

function Update () {

 if(Input.Get$$anonymous$$eyDown($$anonymous$$eyCode.$$anonymous$$ouse0)) {
   

     var playerPlane = new Plane(Vector3.up, transform.position);
     var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
     var hitdist = 0.0;
    
     if (playerPlane.Raycast (ray, hitdist)) {
         var targetPoint = ray.GetPoint(hitdist);
         targetPosition = ray.GetPoint(hitdist);
         var targetRotation = Quaternion.LookRotation(targetPoint - transform.position);
         transform.rotation = targetRotation;
     }
 }

 var dir : Vector3 = targetPosition - transform.position;
 var dist : float = dir.magnitude;
 var move : float = speed * Time.deltaTime;
 if(dist > move){
     transform.position += dir.normalized * move;
 } 
 else {
     transform.position = targetPosition;
 }
 
 transform.position += (targetPosition - transform.position).normalized * speed * Time.deltaTime; 

}

I've tried to replace transform.position with rigidbody.AddForce but I really messed the whole code up, I am very poor in coding or editing codes. SO if you could help with that, then that'll be great. Other steps such as adding colliders, or rigidbodies then I can manage that.