sqTwineSound

       sqTwineSound HTML5 Sound Macro Suite
       Copyright 2014 Tory Hoke

                 Program URI: http://www.sub-q.com/plugins/sqTwineSound/
                 Description: Sound macros for Twine creations, including controls for volume, fade interval, and playing multiple tracks at once.
                     Version: 0.8.0
                      Author: Tory Hoke
                  Author URI: http://www.toryhoke.com
                     License: GNU General Public License
                 License URI: http://www.opensource.org/licenses/gpl-license.php
                  Repository: https://github.com/AteYourLembas/sqTwineSound
                 FAQ / Q & A: http://sub-q.com/questions (password: ThinkVast)
Bug Reports/Feature Requests: http://sub-q.com/forums/topic/what-would-you-like-to-see-sqtwinesound-do-that-its-not-doing/ (password: ThinkVast)

  sub-Q.com is password-protected while it's in beta (until January 2015.)
  Please kick the tires and report any issues with the website
  via the sub-Q.com Contact form.

This program based on: Twine: HTML5 sound macros by Leon Arnott of Glorious Trainwrecks the source and influence of which appear under a Creative Commons CC0 1.0 Universal License

This program uses

easeInOutSine()
Copyright © 2001 Robert Penner
All rights reserved.

 As distributed by Kirupa
 http://www.kirupa.com/forum/showthread.php?378287-Robert-Penner-s-Easing-Equations-in-Pure-JS-(no-jQuery)

 Open source under the BSD License. 
 
 
 Redistribution and use in source and binary forms, with or without modification, 
 are permitted provided that the following conditions are met:
 
 Redistributions of source code must retain the above copyright notice, this list of 
 conditions and the following disclaimer.
 Redistributions in binary form must reproduce the above copyright notice, this list 
 of conditions and the following disclaimer in the documentation and/or other materials 
 provided with the distribution.
 
 Neither the name of the author nor the names of contributors may be used to endorse 
 or promote products derived from this software without specific prior written permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
 AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
 OF THE POSSIBILITY OF SUCH DAMAGE. 

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

SUITE CONTENTS

 updatevolume    clipName, *volumeProportion e.g. <<updatevolume $clipName 0.5>>
 playsound       clipName
 playsounds      [clipName1, clipName2, ...]
 pausesound      clipName
 pauseallsound   
 stopsound       clipName
 stopallsound    
 loopsound        clipName, *volumeProportion, *overlap
 unloopsound     clipName
 fadeinsound     clipName
 fadeinsounds    [clipName1, clipName2, ...], *volumeProportion, *overlap
 fadeoutsound    clipName
 fadeoutsounds   [clipName1, clipName2, ...]
 quieter
 louder
 jumpscare       clipName <-- PLEASE GIVE YOUR READER A STARTLE WARNING BEFORE USING JUMPSCARE!

KNOWN ISSUES

• Works in Safari Version 7.0.6, Internet Explorer 11, and Chrome Version 37. Not tested on Opera. iOS will not play multiple tracks at once, so seamless loops will not work. Also on iOS sound must be initiated by an action (e.g a click) before audio will actually play.

• If your story throws an alert, or whenever sound playback is paused by something other than another sqTwineSound macro, the start of the next loop will be delayed (by the amount of time the alert was visible.) One way to work around this is to manually pause sound in your passage (<<pausesound $backgroundMusic>>) before you throw up the alert, and then resume the sound <<playsound $backgroundMusic>>again after the alert.

• Sugarcane and Jonah don't have the neat <> macro that the Sugarcube story format does, so making volume control buttons could be a bit of an adventure.

BONUS FEATURES

• The full demo (using the Sugarcube story format) provides working examples

• A Sugarcane- and Jonah-friendly flavor of the script works with native Twine story formats. I can't guarantee this flavor will always have the same features of the Sugarcube flavor, but I hope it's useful.

• The macros that take multiple parameters (e.g. clip name, volume proportion, and overlap) make a good-faith effort not to freak out if you give them these parameters in an unexpected order. It can kind of figure out that "clipName.mp3" is the clip name, and 0.5 is the volume proportion, and 2000 is the milliseconds to overlap. But if you try to mix up a macro's preferred order of parameters AND give it a decimal number as overlap, expect the unexpected!