Breathing sound effect using timers

Question

Hello, i'm trying to make a breathing sound effect in javascript, and i think timers would be the best. What i had in mind for the script to do was this: If you sprint for 6 seconds (shift + w and shift + arrow up), play a breathing sound. After walking for 8 seconds, it can be repeated, else not. I have no idea on how to do this script, so every help would be great!

Okay, what i tried is the cod below, but it isnt working, can anyone tell me whats wrong?

var breath : int = 6; var sound : AudioClip;

function Update() { if (Input.GetKey(KeyCode.LeftShift)){ if (Input.GetKey(KeyCode.W)){ Invoke("gosoung", breath); Debug.Log("Started"); } Debug.Log("Cancelled"); CancelInvoke("gosound"); } }

function gosound(){ audio.clip = sound; audio.Play(); Debug.Log("Playing"); }

Answer 1

Answer by aldonaletto · Dec 02, 2012 at 12:33 AM

As @Fattie said, InvokeRepeating is the best solution for fixed rate actions - but in this case it could complicate things because the rate must be variable. If you want to breathe according to the character speed, something like this could be more suitable (attach this script to the character):

 var breathSound: AudioClip; // assign the breath sound in the Inspector
 var walkRate: float = 4.0; // breath interval when walking
 var walkSpeed: float = 1.5; // is walking when above this speed
 var runRate: float = 2.0; // breath interval when running
 var runSpeed: float = 3.5; // is running when above this speed
 
 private var lastPos: Vector3;
 private var nextBreath: float = 0;
 private var interval: float = 0; // breath interval - 0 means no breath sound
 
 function Update(){
   var dt = Time.deltaTime;
   if (dt > 0){ // only breathe when game not paused!
     // calculate the distance since last frame:
     var dist = Vector3.Distance(lastPos, transform.position);
     // update lastPos:
     lastPos = transform.position;
     // calculate the current speed:
     var speed = dist/dt;
     if (speed > runSpeed){ // is running?
       interval = runRate;
     }
     else
     if (speed > walkSpeed){ // else is walking?
       interval = walkRate;
     }
     else { // else stop breath sound
       interval = 0;
     }
     // if breath enabled and it's time to breath...
     if (interval > 0 && Time.time > nextBreath){
       audio.PlayOneShot(breathSound); // play the sound...
       nextBreath = Time.time + interval; // and set next time to breath
     }
   }
 }

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theFTWnetwork · Dec 02, 2012 at 01:50 AM 0

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I added a script i tried to my first question, can you telll me why it isnt working?

aldonaletto · Dec 02, 2012 at 02:28 PM 0

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You're starting the breath sound when shift and W are pressed, but immediately after you're cancelling the invoke.You're also using Invoke, which will only play the sound once after the breath interval. There's also a typo in Invoke: you're calling "gosoung" instead of "gosound". The code should be like this:

 ...
 private var breathing = false;

 function Update() { 
   if (Input.GetKey(KeyCode.LeftShift) && Input.GetKey(KeyCode.W)){
     if (!breathing){ // only start Invoke once
       InvokeRepeating("gosound", breath, breath);
       breathing = true;
     }
   } else if (breathing){ // no shift+W, cancel invoke (if any)
     CancelInvoke("gosound");
     breathing = false;
   }
 }
 ...

theFTWnetwork · Dec 02, 2012 at 07:19 PM 0

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It only needs to play it every 6 seconds, just 1 time, willthat code do it?

Breathing sound effect using timers

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