How do I make a random shuffle?
How to make video playback very random? (right now it's playing after French, Dutch and after Nederlands, French, but I want to randomly shuffle out of those two)
var playing ='FR';
function video_idle() {
$('#mediaplayer').attr('src',playing + '.mp4' ).show();
mediaplay_video= document.getElementById('mediaplayer');
mediaplay_video.play();
mediaplay_video.onended = function(e) {
console.log('>>> Playing finished: ', e);
if(playing ==='FR') {
playing='NL';
video_idle();
} else {
playing='FR';
video_idle();
}
};
}
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To pick a random video, just put all possible languages into an array and pick one at random:
var languages = ['FR', 'NL'];
var playing = 'FR';
function video_idle() {
$('#mediaplayer').attr('src',playing + '.mp4' ).show();
mediaplay_video= document.getElementById('mediaplayer');
mediaplay_video.play();
mediaplay_video.onended = function(e) {
console.log('>>> Playing finished: ', e);
playing = languages[Math.floor(languages.length * Math.rand())];
video_idle();
};
}
languages.length * Math.rand()
gives you a random float value between 0 and the length of your array, then Math.floor()
rounds it up so that you end up with a random integer between 0 length-1
and which is your array-keys.
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Assuming you only want to shuffle between the two possible languages, you can use Math.round(Math.random())
which will give you a value of 0 and 1 (which in JavaScript will check for true or false):
var playing ='FR';
function video_idle() {
$('#mediaplayer').attr('src',playing + '.mp4' ).show();
mediaplay_video= document.getElementById('mediaplayer');
mediaplay_video.play();
mediaplay_video.onended = function(e) {
console.log('>>> Playing finished: ', e);
if(Math.round(Math.random())) {
playing='NL';
video_idle();
} else {
playing='FR';
video_idle();
}
};
}
If you have more languages or expect more languages then you will need to consider the solution suggested by @Lars Ebert.
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