Machine Gun Different Hit Particles

private var bulletsLeft : int = 0; private var nextFireTime = 0.0; private var m_LastFrameShot = -1;

function Start () { hitParticles = gameObject.GetComponentsInChildren(ParticleEmitter); // We don't want to emit particles all the time, only when we hit something.

         for (var i = 0; i < hitParticles.Length; i++)
              hitParticles[i].emit = false;
         bulletsLeft = bulletsPerClip;

}

function LateUpdate() { if (muzzleFlash) { // We shot this frame, enable the muzzle flash if (m_LastFrameShot == Time.frameCount) { muzzleFlash.transform.localRotation = Quaternion.AngleAxis(Random.Range(0, 359), Vector3.forward); muzzleFlash.enabled = true;

         if (audio)
         {
             if (!audio.isPlaying)
                   audio.Play();
                 audio.loop = true;
         }
     }
     // We didn't, disable the muzzle flash
     else
     {
         muzzleFlash.enabled = false;
         enabled = false;

         // Play sound
         if (audio)
         {
             audio.loop = false;
         }
     }
 }   

}

function Fire () { if (bulletsLeft == 0) return;

         // If there is more than one bullet between the last and this frame
         // Reset the nextFireTime
         if (Time.time - fireRate > nextFireTime)
                 nextFireTime = Time.time - Time.deltaTime;

         // Keep firing until we used up the fire time
         while( nextFireTime < Time.time && bulletsLeft != 0)
         {
                 FireOneShot();
                 nextFireTime += fireRate;
         }

}

function FireOneShot () { var direction = transform.TransformDirection(Vector3.forward); var hit : RaycastHit;

         // Did we hit anything?
         if (Physics.Raycast (transform.position, direction, hit, range))
         {
                 // Apply a force to the rigidbody we hit
                 if (hit.rigidbody)

                         hit.rigidbody.AddForceAtPosition(force * direction, hit.point);

                         // Place the particle system for spawing out of place where we hit the
                         // surface!
                         // And spawn a couple of particles
                         if (hitParticles)
                         {
                                 var peIdx = 0; // lets say 0 is 'normal' but 1 is 'steel'
                                 // determine what was hit
                                 if (hit.transform.tag == "BulletSpark")
                                 peIdx = 1; // you can expand on this with more types of things. 
                                 //Note you must define the tag and set it on the prefabs

                                 hitParticles[peIdx].transform.position = hit.point;
                                 hitParticles[peIdx].transform.rotation =
                                             Quaternion.FromToRotation (Vector3.up,
                                             hit.normal);
                                 hitParticles[peIdx].Emit();
                         }

                         // Send a damage message to the hit object
                         hit.collider.SendMessageUpwards("ApplyDamage", damage,
                                 SendMessageOptions.DontRequireReceiver);
             }

             bulletsLeft--;

             // Register that we shot this frame,
             //so that the LateUpdate function enabled the muzzleflash renderer for one
             //frame
             m_LastFrameShot = Time.frameCount;
             enabled = true;

             // Reload gun in reload Time
             if (bulletsLeft == 0)
                     Reload();

}

function Reload () {

         // Wait for reload time first - then add more bullets!
         yield WaitForSeconds(reloadTime);

         // We have a clip left reload
         if (clips > 0)
         {
                 clips--;
                 bulletsLeft = bulletsPerClip;
         }

}

function GetBulletsLeft () { return bulletsLeft; }