IntroLoop.cs

//Example of use
//Construct
IntroLoop clip = new IntroLoop(audioSource,5f,10f,20f);
//no intro just loop
IntroLoop clip2 = new IntroLoop(audioSource,10f,20f,false);

//you can set it to play once
clip2.playOnce = true;

//call to start
clip.start();

//call once a frame, this resets the loop if the time hits the loop boundary
//or stops playing if playOnce = true
clip.checkTime();

//call to stop
clip.stop();


/* **************************************************** */
//The Music IntroLoop Class handles looping music, and playing an intro to the loop
public class IntroLoop {
    private AudioSource source;
    private float startBoundary;
    private float introBoundary;
    private float loopBoundary;
    //set to play a clip once
    public bool playOnce = false;

    //play from start for intro
    public IntroLoop(AudioSource source, float introBoundary, float loopBoundary) {
        this.source = source;
        this.startBoundary = 0;
        this.introBoundary = introBoundary;
        this.loopBoundary = loopBoundary;
    }
    //play from start for intro or just loop
    public IntroLoop(AudioSource source, float introBoundary, float loopBoundary, bool playIntro) {
        this.source = source;
        this.startBoundary = playIntro?0:introBoundary;
        this.introBoundary = introBoundary;
        this.loopBoundary = loopBoundary;
    }
    //play from startBoundary for intro, then loop
    public IntroLoop(AudioSource source, float startBoundary, float introBoundary, float loopBoundary) {
        this.source = source;
        this.startBoundary = startBoundary;
        this.introBoundary = introBoundary;
        this.loopBoundary = loopBoundary;
    }
    //call to start
    public void start() { this.source.time = this.startBoundary; this.source.Play(); }
    //call every frame
    public void checkTime() {
        Debug.Log(this.source.time);
        if (this.source.time >= this.loopBoundary) {
            if (!this.playOnce) { this.source.time = introBoundary; }
        }
    }
    //call to stop
    public void stop() { this.source.Stop(); }
}
//The Music IntroLoop Class
/* **************************************************** */