Destroy object after 5 collisions

Hi this is my first post so go easy on me. I have searched but cant find info on a way to count the number of hits an object receives and and destroy it after it has been hit say 5 time.

My guess is that I need to count the number of collisions in a variable and then when the variable = 5 destroy object. But I can figure out how to do that. Oh yes and the object to destroy is an instance.

I have been trying to adapt this script that destroys after a period of time but no joy so thought i would put my hand up.

// Instantiate a rigidbody then set the velocity

var projectile : Rigidbody;
var destroyTimeMin = 2.0;
var destroyTimeMax = 5.0;
var pop : ParticleEmitter;

function OnCollisionEnter (col : Collision) {
  Instantiate(pop, transform.position, transform.rotation);

function Update () {
  // Ctrl was pressed, launch a projectile
  if (Input.GetButtonDown("Fire1")) {
    // Instantiate the projectile at the position and rotation of this transform
    var clone : Rigidbody;
    clone = Instantiate(projectile, transform.position, transform.rotation);

    // Give the cloned object an initial velocity along the current
    // object's Z axis
    clone.velocity = transform.TransformDirection (Vector3.forward * 10);    

    Destroy(clone.gameObject, Random.Range(destroyTimeMin, destroyTimeMax));
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asked Jun 12, 2011 at 01:43 AM

jammerjar gravatar image

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Remember, you can format code by using the button with 0s and 1s on it.

Jun 13, 2011 at 11:28 AM Herman Tulleken

Ok was wondering how i did that - thanks

Jun 13, 2011 at 08:42 PM jammerjar
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1 answer: sort voted first

for seeing if the object is getting hit 5 times I'd think you'd simple do this...

var hit = 0;

function OnCollisionEnter(){
    hit +=1;

function checkhit(){
    if(hit == 5){
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answered Jun 12, 2011 at 02:27 AM

Eli Davis gravatar image

Eli Davis
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Hey Eli thought I would just let you know that that worked great thanks. Applied it as a separate script instead of making it part of my instantiate script. It didnt like having two OnCollisionEnters and I couldnt make it work inside the existing function. Not sure if that's a bad thing to do but it work. Thanks

Jun 13, 2011 at 09:07 AM jammerjar

@jammerjar if Eli's solution fixed your problem, please accept it as the answer to your question.

Jun 13, 2011 at 03:47 PM Chris D
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asked: Jun 12, 2011 at 01:43 AM

Seen: 2150 times

Last Updated: Jun 13, 2011 at 08:42 PM