RayCasts and Collision

Unity Engine
1

Hi, probably a simple solution to this but just cant think how to do it sorry.

I’ve done a ray cast eg.

if(Physics.Raycast(ray, hit))
{
   //Debug.Log(hit.collider.name);
   if ((hit.collider.name) && Input.GetMouseButtonUp(0))
   {

     Destroy(hit.collider.gameObject,2);

   }

}

So when the mouse button is clicked over several different objects they disappear after 2 seconds which works all good.

What I want to do is, move each object individually when they are clicked on. This script is attached to all the objects that I want to click on and then translate. I hope this makes sense, I don’t quite understand when moving objects (its only for 2 seconds in this case) how I can keep track of each one as a few objects could have been clicked on within those 2 seconds…All objects have been placed in the scene, not instantiated in code…

Thanks for any assistance!:slight_smile:

2

If you want to click every object, use OnMouseDown().

The way you are using rays now is very inefficient and will get you into trouble.

3

Id rather try and get this way working as once I’ve solved this I’m done, thanks for the suggestion but chose rays as up until now easy to implement. I had other issues with onmousedown which caused me a headache in the way in which it worked, can’t actually remember the details but hence why i thought id try using Rays…

4

what i did in the end was add a rigid body to all the objects and took gravity off, then i put this line in the script

hit.collider.gameObject.rigidbody.useGravity=true;
5

The natural way to do this is using coroutines, I guess.

using System.Collections;
using UnityEngine;

public class Test : MonoBehaviour
{
   void Update()
   {
     if (Input.GetMouseButtonUp(0))
     {
       var ray = Camera.main.ScreenPointToRay(Input.mousePosition);

       RaycastHit hit;
       if (Physics.Raycast(ray, out hit))
       {
         Destroy(hit.collider.gameObject, 2);
         StartCoroutine(Translate(hit.collider.gameObject));
       }
     }
   }

   IEnumerator Translate(GameObject go)
   {
     while (go != null)
     {
       go.transform.Translate(Vector3.forward * Time.deltaTime);
       yield return null;
     }
   }
}
6

Hey Alex, thanks for the reply, I’ll try and go through your code, although using javascript at the moment, i’m not too hot on c# …