Limiting the time my gun can shoot

Questions & Answers
1

I am trying to limit the rate of fire for my gun. I use this script:

function Update () 
{
	machineflash = GameObject.FindWithTag("machineflash");
	// raycast settings
	var direction = transform.TransformDirection(Vector3.forward);
	var hit : RaycastHit;
	var localOffset = transform.position;
	
	// check to see if user has clicked
	if(Input.GetButton("Fire1"))
	{
		{
		// if so, did we hit anything?
		if (Physics.Raycast (localOffset, direction, hit, 400)) 
		{
			// just so we can see the raycast
			Debug.DrawLine (localOffset, hit.point, Color.cyan);
			// print to console to see if we have fired
			print("we have fired!");
			// send damage report to object
			hit.collider.SendMessageUpwards("ApplyDamage", damage, SendMessageOptions.DontRequireReceiver);
		}
		AudioSource.PlayClipAtPoint(gunshot,transform.position);
		Instantiate (muzzleflash, machineflash.transform.position, transform.rotation);
		}
}

But whenever I try to put a WaitForSeconds, it says that function Update() cannot be a coroutine. How can I fix this.

2

You can use a boolean to prevent fire and set it outside of Update in a coroutine.

if(Input.GetButton("Fire1") && !gunFired)
{
   StartCoroutine(GunFire());
}

use this outside of Update

function GunFire()
{
   gunFired = true;
   yield WaitForSeconds(1);
   gunFired = false;
}