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Question by TheFanciestofPants · Jun 16, 2011 at 09:06 AM · objectmouseclick

Run script when object is clicked

This seems like a really simple problem but I'm having real difficulty finding the answer.

I have a simple script attached to a series of objects, each is a slight variation on the other, and I need these scripts to launch when the object is clicked on by a mouse cursor.

So for example I have objects A, B and C with corresponding scripts A, B, and C.

How do I get a mouse click on object B to launch script B attached to it?

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Answer by PaulUsul · Jun 16, 2011 at 09:20 AM

Hi and welcome to Unity Answers :) I would raycast from the camera. like so:

 // This holds the info on what we hit
 RaycastHit hit;
 // find your camera and convert your mouse position to a ray
 Ray ray = Camera.current.ScreenPointToRay(Input.mousePosition);
 // rayCast into the scene And require that something is hit has a transform
 if (Physics.Raycast(ray, out hit, Mathf.Infinity) && hit.transform != null)
 {
     // try to retrieve classA from the script
     ClassA tmp = hit.GetComponent<ClassA>();

     // did we hit something with the script on it? 
     if (tmp != null)
     {
         // if so.. Fire the missiles! 
         tmp.LaunchScript();
     }
 }
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avatar image PaulUsul · Aug 01, 2011 at 12:55 PM 0
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