Clicking on an Object to Make it the Variable Target

Question

How could i click a cube and have it because the variable target.

I would like to have this in C# so if that is possible please give it to me like that

I saw this post which is practically what i need but i got errors converting it because it was in javascript

http://answers.unity3d.com/questions/199159/how-to-make-an-object-the-target-when-you-click-on.html

The main problem im getting is the variable ray in that post

This is the script in that post

 var hit: RaycastHit;
 var ray;
 private var target : Transform;
 
 function Update () 
 {
     if(Input.GetMouseButtonDown(0))    // for standalone
        {
          if (Physics.Raycast (ray, hit, 100)) 
            {
               if(hit.collider.gameObject.tag == "TagName")
                 {
                  target = hit.collider.gameObject;
               }
        }
 }

What type of variable is that?

Answer 1

Answer by aldonaletto · Jan 02, 2012 at 02:11 AM

This is the C# version:

RaycastHit hit; Ray ray; Transform target;

void Update (){ if (Input.GetMouseButtonDown(0)){ ray = Camera.main.ScreenPointToRay(Input.mousePosition); if (Physics.Raycast (ray, out hit, 100)){ if (hit.transform.tag == "TagName"){ target = hit.transform; } } }
}

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CursedScripter · Jan 02, 2012 at 02:45 AM 0

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Thanks but a couple of questions...

I get this semi error... I still can run my script but this pops up

NullReferenceException UnityEngine.Camera.ScreenPointToRay (Vector3 position) Control.Update () (at Assets/MyAssets/Scripts/Control.cs:32)

And The variable target doesn't actually take that object i click as the variable

Julian-S · May 31, 2013 at 08:08 PM 0

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I know this is old, but I just experience the same problem and got the same error. I fixed it by making sure my camera was tagged as "MainCamera".

Clicking on an Object to Make it the Variable Target

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