Can't stop the audio with Js-CodePudding

I have a problem with Javascript:

I want to stop the audio in a Js program when the game comes to an end. For this I define a variable "endGame" and I make it false, so that when I call it true in an event, the audio stops. But the problem is that the audio does not stop when this variable is set to true.

Here's the piece of code that I need some help with:

let endGame = false

main.addEventListener("click", (e) => {
    themeSong.play() 
    
    if(endGame == true) {
        themeSong.pause()
    }

CodePudding user response：

EventListeners will not be triggered when the variable change. You should do it manually.

let endGame = false

main.addEventListener("click", (e) => {
    themeSong.play() 
});

// The function which updates the endGame variable and stop the audio
function fnEndGame() {
   endGame = true;
   themeSong.pause() 
}

// You should call fnEndGame() to stop the game, DO NOT update the variable directly.

CodePudding user response：

By using a custom event, and then throwing that event whenever you want, you can pause your music execution the moment you want to.

So instead of using an "endgame" variable, I suggest you throw a custom event named "supergame_endgame" and listen to that event, and halt all relevant audio's in that event listener.

See my comments in the code below for more explanation.

let audio = document.querySelector('audio');
let start = document.getElementById('play');
let stop = document.getElementById('stop');
/** simple starter of the sound **/
start.addEventListener('click', () => {
  audio.play();
});

/** Event handler for own custom event, named `stop_my_audio_play`
  * This will actually stop audio play, regardless from where the event `stop_my_audio_play` is
  * cast from
  */
window.addEventListener('stop_my_audio_play', (e) => {
  audio.pause();
});

/** Throw an event `stop_my_audio_play` with the attribute bubbles set to true
 * So it can be caught at window level
 */
stop.addEventListener('click', () => {
  stop.dispatchEvent(new Event('stop_my_audio_play', {bubbles:true}))
});

audio {
display:none;
}

<audio controls="controls" autobuffer="autobuffer" autoplay="autoplay" loop>
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</audio>

<button id="play">Play</button>
<button id="stop">Stop</button>