Ti.Media.Sound sequencer

sequencer.js

/*jslint vars: true, plusplus: true, sloppy: true, nomen: true, maxerr: 1000 */

function Sequencer(){
	var self = {};
	
	var song, songTitle, currentNote, totalNotes, noteBatch, notes, timeouts = [];
	
	if(Ti.App.Properties.hasProperty('noteBatch')){
		noteBatch = Ti.App.Properties.getInt('noteBatch');
	}else{
		noteBatch = 1;
	}
	var player1, player2, hitter, player = {};
	hitter = 0;
	
	self.clearTimeouts = function(){
		Ti.API.info('Clearing Timers');
		timeouts = [];
	};
	
	self.loadSounds = function(){
		
		// We clear out any loaded sounds
		player = {};
	
		Ti.API.info(Ti.Platform.availableMemory);
		Ti.API.info('Loading Octive 0');
		player.a0 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A0.mp3', volume: 1});
		player.b0 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B0.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 1');
		player.a1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A1.mp3', volume: 1});
		player.b1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B1.mp3', volume: 1});
		player.c1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C1.mp3', volume: 1});
		player.d1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D1.mp3', volume: 1});
		player.e1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E1.mp3', volume: 1});
		player.f1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F1.mp3', volume: 1});
		player.g1 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G1.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 2');
		player.a2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A2.mp3', volume: 1});
		player.b2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B2.mp3', volume: 1});
		player.c2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C2.mp3', volume: 1});
		player.d2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D2.mp3', volume: 1});
		player.e2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E2.mp3', volume: 1});
		player.f2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F2.mp3', volume: 1});
		player.g2 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G2.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 3');
		player.a3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A3.mp3', volume: 1});
		player.b3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B3.mp3', volume: 1});
		player.c3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C3.mp3', volume: 1});
		player.d3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D3.mp3', volume: 1});
		player.e3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E3.mp3', volume: 1});
		player.f3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F3.mp3', volume: 1});
		player.g3 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G3.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 4');
		player.a4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A4.mp3', volume: 1});
		player.b4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B4.mp3', volume: 1});
		player.c4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C4.mp3', volume: 1});
		player.d4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D4.mp3', volume: 1});
		player.e4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E4.mp3', volume: 1});
		player.f4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F4.mp3', volume: 1});
		player.g4 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G4.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 5');
		player.a5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A5.mp3', volume: 1});
		player.b5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B5.mp3', volume: 1});
		player.c5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C5.mp3', volume: 1});
		player.d5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D5.mp3', volume: 1});
		player.e5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E5.mp3', volume: 1});
		player.f5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F5.mp3', volume: 1});
		player.g5 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G5.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 6');
		player.a6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A6.mp3', volume: 1});
		player.b6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B6.mp3', volume: 1});
		player.c6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C6.mp3', volume: 1});
		player.d6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D6.mp3', volume: 1});
		player.e6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E6.mp3', volume: 1});
		player.f6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F6.mp3', volume: 1});
		player.g6 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G6.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 7');
		player.a7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.A7.mp3', volume: 1});
		player.b7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.B7.mp3', volume: 1});
		player.c7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C7.mp3', volume: 1});
		player.d7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.D7.mp3', volume: 1});
		player.e7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.E7.mp3', volume: 1});
		player.f7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.F7.mp3', volume: 1});
		player.g7 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.G7.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	
		Ti.API.info('Loading Octive 8');
		player.c8 = Ti.Media.createSound({url: Ti.Filesystem.resourcesDirectory+'audioLibrary/Piano.ff.C8.mp3', volume: 1});
		Ti.API.info(Ti.Platform.availableMemory);
	};
	
	self.incNoteBatch = function(){
		noteBatch++;
		if(noteBatch === 6){
			noteBatch = totalNotes;
		}
		
		if(noteBatch === (totalNotes+1)){
			noteBatch = 1;
		}
		Ti.App.Properties.setInt('noteBatch',noteBatch);
		Ti.App.fireEvent('update_count_button');
	};
	
	self.getSongTitle = function(){
		return songTitle;
	};
	
	self.getCurrentNote = function(){
		return currentNote;
	};
	
	self.getTotalNotes = function(){
		return totalNotes;
	};
	
	self.buildNoteURL = function(note){
		var noteURL;
		var path = Ti.Filesystem.resourcesDirectory+'audioLibrary/';
		var filename = 'Piano.ff.'+note.step.toUpperCase()+note.octive+'.mp3';
		noteURL = path+filename;
		return noteURL;
	};
	
	self.loadSong = function(file){
		
		songfile = Ti.Filesystem.getFile(Ti.Filesystem.resourcesDirectory,'songs',file);
		song = JSON.parse(songfile.read());
		songTitle = song.title;
		totalNotes = song.notation.length;
		notes = song.notation;
		currentNote = 0;
		noteBatch = 1;
		Ti.App.Properties.setString('songFile', file);
		Ti.App.Properties.setInt('noteBatch',noteBatch);
		Ti.App.fireEvent('update_song_title', {title:songTitle});
		Ti.App.fireEvent('update_count_button');
		
	};
	
	self.nextNote = function(){
		currentNote++;
	};
	
	function playNote(){
		Ti.API.info('Playing Note #'+currentNote+': '+notes[currentNote].step+notes[currentNote].octive);

		player[notes[currentNote].step+notes[currentNote].octive].stop();
		player[notes[currentNote].step+notes[currentNote].octive].play();
		currentNote++;
		if(currentNote === (totalNotes)){
			currentNote = 0;
		}
	}
	
	self.play = function(){
		Ti.API.info('Current Note: '+notes[currentNote].step);
		
		if(noteBatch === 1){
			playNote();
	
		}else{
			playNote();
			for(var x=1;x<noteBatch;x++){
				timeouts.push(setTimeout(function(){
					playNote();
				},1000*x));
			}	
		}

		
			
		
	};
	
	self.loadSounds();
	if (Ti.App.Properties.hasProperty('songFile')){
		self.loadSong(Ti.App.Properties.getString('songFile'));
	} else {
		self.loadSong('mary_had_a_little_lamb.json');
	}
	
	return self;
}

module.exports =Sequencer;