Rate of fire

I'm working on a script for guns in my game, and i'd like to customize the rate of fire. This script is for automatic weapons. How would i go about doing this?

Code (csharp):

1. var Bullet : Transform;
2. var Spawn : Transform;
3. var shellSpawn : Transform;
4. var shell : Transform;
5. var muzzleflash : Transform;
6. var BulletForce = 4000 ;
7. var shellForce = 100 ;
8. var Sounds:AudioClip[];
9. var RateOfFire = 0 ;
10.  
11. function Update ()
12. {
13.     if(Input.GetButton("Fire1"))
14.     {
15.        Shot();
16.     }
17. }
18.  
19. function Shot()
20. {
21.     var pel = Instantiate(Bullet, Spawn.position, Spawn.rotation);
22.     pel.rigidbody.AddForce(Spawn.forward * BulletForce);
23.     var sel = Instantiate(shell, shellSpawn.position, shellSpawn.rotation);
24.     sel.rigidbody.AddForce(shellSpawn.forward * shellForce);
25.     Instantiate(muzzleflash, Spawn.position, Spawn.rotation);
26.     audio.clip = Sounds[Random.Range(0, Sounds.length)];
27.     audio.Play();
28. }

 

This should work :

Code (csharp):

1.  
2. var fireRate : float = 0.5;
3. var nextFire : float = 0;
4.  
5. function Update(){
6. if(Input.GetButton("Fire1")  Time.time > nextFire){
7. nextFire = Time.time + fireRate;
8. shot();
9. }
10. }
11.  
12.  

 

Intense_Gamer94's solution works but is not frame rate independent. You can achieve that by using Time.deltaTime.

For example:

Code (csharp):

1.  
2. var Bullet : Transform;
3. var Spawn : Transform;
4. var shellSpawn : Transform;
5. var shell : Transform;
6. var muzzleflash : Transform;
7. var BulletForce = 4000 ;
8. var shellForce = 100 ;
9. var Sounds:AudioClip[];
10. var RateOfFire = 0 ;
11.  
12. var fireRate: float = 0.5;
13. var fireTimer: float = 0.0;
14. var canFire: boolean = true;
15.  
16. function Update ()
17. {
18.     if(Input.GetButton("Fire1")  canFire) {
19.         canFire = false;
20.         Shot();
21.     }
22. }
23.  
24. function Shot()
25. {
26.     var pel = Instantiate(Bullet, Spawn.position, Spawn.rotation);
27.     pel.rigidbody.AddForce(Spawn.forward * BulletForce);
28.     var sel = Instantiate(shell, shellSpawn.position, shellSpawn.rotation);
29.     sel.rigidbody.AddForce(shellSpawn.forward * shellForce);
30.     Instantiate(muzzleflash, Spawn.position, Spawn.rotation);
31.     audio.clip = Sounds[Random.Range(0, Sounds.length)];
32.     audio.Play();
33.  
34.     StartCoroutine("ShotTimer");
35. }
36.  
37. function ShotTimer() {
38.    
39.     while(canFire == false) {
40.         fireTimer += Time.deltaTime;
41.         if(fireTimer > fireRate) {
42.             fireTimer = 0.0;
43.             canFire = true;
44.             break;
45.         }
46.         yield;
47.     }
48. }
49.  

 

It doesnt matter if its frame rate independent in this situation, as the fire rate is inferred by the user clicks.

intense_gamer offered a better solution.