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Question by Lemonizer · Mar 25, 2013 at 11:58 PM · gameobjectraycast

Storing game objects from raycast?

Is it possible to "store" the gameobject hit by raycast in a variable somehow? I am new to unity and the way I am using raycast right now seems a bit clunky, I have a script to pick up objects but I seem to have little control of the object being hit.

Here's what I have right now:

     var holdingObject : boolean = false;
     
     
     function FixedUpdate () {
     
     var hit : RaycastHit;
     
     var forward = transform.TransformDirection(Vector3.forward);
     
         
                 if(Input.GetButtonDown("Fire2")){
         
                     Physics.Raycast(transform.position, forward, hit, 5);
                     
                                 if(hit.collider != null){
                     
    if(hit.collider.gameObject.tag == "jumpableObject" && holdingObject == false){
         
                         hit.collider.gameObject.transform.parent = transform;
                         
                         hit.collider.gameObject.rigidbody.isKinematic = true;
                         
                         
                         
                         holdingObject = true;                                
                     
                 }                                
             }                   
         }   
     }

I have a feeling that it should be possible to store this transform from the raycast in a variable but I am not sure how, any help to get me on the right track would be appriciated :)!

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Answer by justinl · Mar 26, 2013 at 12:03 AM

Simply store the hit object in a GameObject variable and you can keep it forever! Also a tip: Physics.Raycast returns true if it hits something and false if it doesn't. So you don't have to test to see if the collider equals null. You can do it like I have in the example below:

 GameObject theHitObject;
 if(Physics.Raycast(transform.position, forward, hit, 5)){
     //we hit something!  store the hit object
     theHitOjbect = hit.collider.gameObject; //this is how you store it
 } else {
     //we didn't hit anything
 }
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avatar image Lemonizer · Mar 26, 2013 at 12:12 AM 0
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Thanks alot!

avatar image justinl · Mar 26, 2013 at 12:14 AM 0
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You're welcome!

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