Cloning help?

Question

Hello, I've been making a small game with Kunai's, Katana's and such and i know the basics of scripting. The Kunai is an throw-able weapon and i wanted it to be cloned, thrown and then destroyed with this script which seemed to work

 var projectile : Rigidbody;
 var speed = 20;
 var lifetime = 1;
  
 function Update () {
 
     if (Input.GetMouseButton(0)) {
 
     var clone : Rigidbody;
     clone = Instantiate(projectile, transform.position, transform.rotation);
     
 
     clone.velocity = transform.TransformDirection (Vector3.forward * speed);
     
 
     Destroy(clone.gameObject, lifetime);
     }
 }

but the script clones several copies after one click, not just one at a time as i wish.

alt text

Can anyone please help me with this?

Thanks

Answer 1

Answer by robertbu · Mar 08, 2013 at 08:52 PM

You want to use Input.GetMouseButtonDown(0) instead of Input.GetMouse(). Input.GetMouse button will return true for any frames in which the mouse is held down. Input.GetMouseButtonDown(0) only return true for the frame in which the mouse is pressed.

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ForeignGod · Mar 08, 2013 at 10:03 PM 0

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It kinda worked, but i think it is now cloning every $$anonymous$$unai in the scene, If i press once 1 kunai appears, if i press again 2 more appears, and the 3rd time i press 3 more appears. Could it be Cloning not only the "original" $$anonymous$$unai but also the clones?

robertbu · Mar 08, 2013 at 10:35 PM 0

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There are a few things here that are non-standard. I believe it is the Destory call that is causing the problem, but I'm not sure. Try these changes to your script:

 var projectile : GameObject;
 var speed = 20.0;
 var lifetime = 1.0;
  
 function Update () {
  
     if (Input.Get$$anonymous$$ouseButton(0)) {
  
     var clone : GameObject;
     clone = Instantiate(projectile, transform.position, transform.rotation);
  
  
     clone.rigidbody.velocity = transform.TransformDirection (Vector3.forward * speed);
  
  
     Destroy(clone, lifetime);
     }
 }

ForeignGod · Mar 08, 2013 at 10:42 PM 0

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Well alt text

There are now extremely many clones inside of themselves + they are freezing in mid air.

and btw thanks for trying to help me out.

1f8aa0a7c7067ac8bf72baba6690afa0.png (279.6 kB)

ForeignGod · Mar 08, 2013 at 10:50 PM 0

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I think a friend of $$anonymous$$e found out the problem, the clones have the script and therefore they clone each other. But that's yet another problem to solve.

Is there a way i can make the clones spawn without the script?

robertbu · Mar 09, 2013 at 01:49 AM 1

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Typically I attach a cloning script to an empty game object in the scene. If the clones need to be in random locations, I just generate random numbers. If the close must happen at positions of existing clones, then you can get the positions of all the existing clones (through a tag) and select the position of one to be a the clone point.

Cloning help?

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