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Question by CSXsonic · Oct 20, 2015 at 01:47 AM · c#update

How can I autofire a ships gun every half second C#

I am making an oldfashioned sci-fi style shootemup and I want to make the main gun fire about every 0.5 seconds. This is what I have so far. using UnityEngine; using System.Collections;

 public class laserblast : MonoBehaviour {
     public Rigidbody laser;
     public Rigidbody ship;
 
     void Update () {
         if (Input.GetKey("d"))
         {
             Instantiate (laser,ship.position,ship.rotation);
         }
     }
 }

as you can see, when I press "d", laser fires from the ship. My problem is that another laser fires every frame and I would like to know how to control that so the laser comes in only every half second. Thank you.

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Answer by GiyomuGames · Oct 20, 2015 at 02:18 AM

You should add variables "timeAtLastShot" and "minTimeBetween2Shots" (.5f is you want .5 seconds).

Then you do:

 if (Input.GetKey("d") && (Time.time - timeAtLastShot) >= minTimeBetween2Shots)
 {
        Instantiate (laser,ship.position,ship.rotation);
        timeAtLastShot = Time.time;
 }
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avatar image GiyomuGames · Oct 28, 2015 at 08:27 AM 0
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@CSXSonic are you there? ^^

avatar image CSXsonic GiyomuGames · Nov 01, 2015 at 07:41 PM 0
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ops Sorry. I have seemed to forgotten about you. O$$anonymous$$, I tried what you suggested but there was an error somewhere. I searched up Time.time and I got this

 public class ExampleClass : $$anonymous$$onoBehaviour {
     public GameObject projectile;
     public float fireRate = 0.5F;
     private float nextFire = 0.0F;
     void Update() {
         if (Input.GetButton("Fire1") && Time.time > nextFire) {
             nextFire = Time.time + fireRate;
             GameObject clone = Instantiate(projectile, transform.position, transform.rotation) as GameObject;
         }
     }
 }

and that worked just fine. What you suggested didn't exactly work but it pointed me in the right direction so thank you.

avatar image GiyomuGames CSXsonic · Nov 02, 2015 at 05:24 AM 0
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Ok cool! The important thing is that you sorted out your problem.

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