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Question by yvyv1000 · Oct 20, 2015 at 09:25 PM · movementaddforcebullet

bullet wont move forward

i have this script:

  var projectile : Rigidbody;
  var speed = 1;
  var barrel : Transform;
  var shots :  int  =  0 ;
  var maxShots :  int  =  1 ;
  var fwd : Vector3;
  
  function Update () {
      fwd = transform.TransformDirection(Vector3.forward);
  
  if ( Input.GetButtonDown ("Fire1") && shots < maxShots){
  
         var bullet1 : Rigidbody;
         bullet1 = Instantiate(projectile, barrel.position, barrel.rotation) as Rigidbody;
         bullet1.GetComponent(Rigidbody).useGravity = false;
         bullet1.GetComponent(Rigidbody).AddForce(fwd * speed, ForceMode.Impulse);
  shots ++;
  
  }
  else if (shots >= maxShots && Input.GetKeyDown(KeyCode.R))
      {
         Reload();
      }
  }
  
  function Reload() {
   yield WaitForSeconds(0.5); 
          shots = 0;
  }

it' s not 100% mine i used some parts of a tutorial but when i add the force my bullet will just float in the air where it is spawned can someone tell me whats wrong cause i honestly thing it should work but it' s probably something small

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Answer by yvyv1000 · Oct 21, 2015 at 09:22 AM

i fixed my problem that kanematic shouldn' t be on but off so i changed and now it works its strange though cause unity actually can't do without it if you have mesh collider on so i changed it to sphere

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avatar image yvyv1000 · Oct 21, 2015 at 09:30 AM 0
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changed it again ins$$anonymous$$d of the var fwd i now use transform.forward but still floating in the are doing nothing

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Answer by smallbit · Oct 21, 2015 at 04:48 AM

You are adding force of 1, If you didn't change the mass of rigidbody (which is 1 by default) you are adding way to small force to it. Try bigger values for your speed, and see what happens or alternatively decrease the mass of the bullet.

Also you can remove the code from update, there is no need to run it every frame.

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avatar image yvyv1000 · Oct 21, 2015 at 09:16 AM 0
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i already changed the speed value in the editor to 100 still no change

avatar image yvyv1000 · Oct 21, 2015 at 09:20 AM 0
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also it needs to be in update in order to shoot after it cause as you can see the shoot is triggered when i press the "Fire1" button so if i put it in start i can' t use it anymore i tryed but then the bullet won' t even appear

avatar image yvyv1000 · Oct 21, 2015 at 09:32 AM 0
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i need to add that my projectile is not using gravity and it is kanematic

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