How can I delay the cast of a fireball as well as destroy a gameobject mid script

Question

So I have this script launch a fireball on a 3 second cooldown, that works fine. Im trying to implement a cast time by spawning a flame object that lasts 1.5 secs then disapears as the fireball is cast. I keep getting the most retarded error ever so i assume im writing it way wrong...

 #pragma strict
 
 public var missileObject:GameObject;
 public var throwForce:float = 10;
 private var canFire : boolean = true;
 public var flameObject:GameObject;
 public var fireAnchor:GameObject;
 
 function Start () {
 
 }
 
 function Update () {
     if(Input.GetKeyDown("2") && canFire){
             var newFlame:GameObject = Instantiate(flameObject,fireAnchor.transform.position, fireAnchor.transform.rotation);
             yield WaitForSeconds (1.5)
                 Destroy newFlame:GameObject;
             var newMissile:GameObject = Instantiate(missileObject, this.transform.position, this.transform.rotation);
                 Physics.IgnoreCollision(newMissile.collider, this.transform.parent.collider);
                 newMissile.rigidbody.AddForce(throwForce * this.transform.forward, ForceMode.Impulse);
     canFire = false;
         Reload();    
     }
 }
 
 function Reload (){
     yield WaitForSeconds (3);
         canFire = true;
         
 }

Answer 1

Best Answer

Answer by whydoidoit · Apr 09, 2013 at 06:01 AM

You need to do:

  Destroy(newFlame);

But also you cannot yield inside an Update function - as you see with the Reload - in fact you are better off putting all of the stuff inside the if inside reload now:

  function Update () {
     if(Input.GetKeyDown("2") && canFire){
          
        FireAndReload(); 
     }
 }
  
 function FireAndReload (){
          canFire = false;

          var newFlame:GameObject = Instantiate(flameObject,fireAnchor.transform.position, fireAnchor.transform.rotation);
          yield WaitForSeconds (1.5)

          Destroy(newFlame);

          var newMissile:GameObject = Instantiate(missileObject, this.transform.position, this.transform.rotation);
          Physics.IgnoreCollision(newMissile.collider, this.transform.parent.collider);
          newMissile.rigidbody.AddForce(throwForce * this.transform.forward, ForceMode.Impulse);

          yield WaitForSeconds (3);
          canFire = true;
  
 }

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ImPvEspec · Apr 09, 2013 at 02:45 PM 0

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Interesting.. Thank you very much. Guess i'll be spending my uni holidays spicing up my programming capabilities.

Answer 2

This was the final script I ended up using, still a slight issue with the instantiating of the 1st flame effect as it doesnt follow the character, though its only alive for a second so not to bad but rest of it works fine.

 #pragma strict
 
 public var missileObject:GameObject;
 public var throwForce:float = 10;
 private var canFire : boolean = true;
 public var flameObject:GameObject;
 public var fireAnchor:GameObject;
 public var fireballCast:AudioClip;
 public var fireballLaunch:AudioClip;
 
 
 
 function Start () {
 
 }
 
 function Update () {
     if(Input.GetKeyDown("2") && canFire){   //Press 2 key in game to initiate script
             
     FireandReload();    //Calls the below function
     }
 }
 
 function FireandReload (){
     var newFlame:GameObject = Instantiate(flameObject,fireAnchor.transform.position, fireAnchor.transform.rotation); //Instantiates the flame effect on the players hands
         audio.PlayOneShot (fireballCast);
             yield WaitForSeconds (1);
                 Destroy (newFlame); //Destroys flame effect
     var newMissile:GameObject = Instantiate(missileObject, this.transform.position, this.transform.rotation); //Instantiates the fireball in front of the player
         Physics.IgnoreCollision(newMissile.collider, this.transform.parent.collider); //Stops the fireball colliding with the player
             newMissile.rigidbody.AddForce(throwForce * this.transform.forward, ForceMode.Impulse); //Propels the fireball forwards
                 audio.PlayOneShot(fireballLaunch);
         canFire = false; //Script can now no longer player again
             yield WaitForSeconds (3);
         canFire = true; //After 3 second delay script is reset
         
 }

How can I delay the cast of a fireball as well as destroy a gameobject mid script

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