Strobe light when a key is pressed

Question

Hi!

I'm making a funfair game, and I need a strobe or flicker light script.

I want a light to strobe/flicker when a key is being pressed. I made a code that flickers the light automatically, but I can't made one yet when a key is being pressed. I hope somebody can help me with this.

 using UnityEngine;
 using System.Collections;
 
 
 public class Flitser : MonoBehaviour
 {
 
 
     Light testLight;
     public float minWaitTime;
     public float maxWaitTime;
 
     void Start()
     {
         testLight = GetComponent<Light>();
         StartCoroutine(Flashing());
     }
 
     IEnumerator Flashing()
     {
         while (true)
         {
             yield return new WaitForSeconds(Random.Range(minWaitTime, maxWaitTime));
             testLight.enabled = !testLight.enabled;
 
         }
     }
 }

Answer 1

If you want the light to flicker when a key is held down.

 using UnityEngine;
 using System.Collections;
 
 public class Flitser : MonoBehaviour
 {
     Light testLight;
     public float minWaitTime;
     public float maxWaitTime;
     public KeyCode triggerKey = KeyCode.Space;
     private float timer = 0;
 
     void Start()
     {
         testLight = GetComponent<Light>();
         timer = Random.Range(minWaitTime, maxWaitTime);
     }
 
     private void Update()
     {
         if( Input.GetKey(triggerKey) )
         {
             timer -= Time.deltaTime;
             if ( timer < Time.deltaTime )
             {
                 timer = Random.Range(minWaitTime, maxWaitTime);
                 testLight.enabled = !testLight.enabled;
             }
         }
         else
         {
             timer = 0;
 
             // Following lines optional
             // Just in case you always want the light to be enabled
             // if the key is not held anymore
             if(Input.GetKeyDown(triggerKey))
             {
                 testLight.enabled = true;
             }
         }
     }
 }

If you want the light to flicker after a key is pressed down and until another key is pressed down (switch on/off with 2 different buttons)

 using UnityEngine;
 using System.Collections;
 
 public class Flitser : MonoBehaviour
 {
     Light testLight;
     public float minWaitTime;
     public float maxWaitTime;
     public KeyCode enableKey = KeyCode.O;
     public KeyCode disableKey = KeyCode.L;
     private float timer = 0;
     private bool flickering;
 
     void Start()
     {
         testLight = GetComponent<Light>();
         timer = Random.Range(minWaitTime, maxWaitTime);
     }
 
     private void Update()
     {
         if( flickering )
         {
             timer -= Time.deltaTime;
             if ( timer < Time.deltaTime )
             {
                 timer = Random.Range(minWaitTime, maxWaitTime);
                 testLight.enabled = !testLight.enabled;
             }
             
             if( Input.GetKeyDown(disableKey) )
             {
                 timer = 0;
                 flickering = false;
                 
                 // Following line optional
                 // Just in case you always want the light to be enabled
                 testLight.enabled = true;
             }
         }
         else if( Input.GetKeyDown(enableKey) )
         {
             flickering = true ;
         }
     }
 }

Strobe light when a key is pressed

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