/
celodyCore.js
776 lines (755 loc) · 48.9 KB
/
celodyCore.js
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// single global container to encapsulate all celody core data
var celody = {};
/* "core" module is default logic, good for generic stream with multiple instruments
* load the stream as a jsonObject, pass the position in object
* can load file as static object hardcoded into file
* can load file via json ajax response from remote server
* can load file from The Tangle using a p2p node
*/
function loadStreamFile(jsonCurrent,jsonSlot) {
// basic celody object containers
celody.streamInfo = [];
celody.soundFile = [];
celody.soundOptions = [];
celody.soundFX = [];
// get the stream data
if ((jsonCurrent) && (jsonCurrent[jsonSlot])) {
validateStreamFile(jsonCurrent);
} else {
console.log("There is no data for this stream.");
stopStreams();
return false;
}
function validateStreamFile(jsonCurrent) {
// set the stream primitives - filter and validate
celody.streamInfo[0] = [];
celody.streamInfo[0].soundsLoaded = false;
celody.streamInfo[0].error = false;
celody.streamInfo[0].stop = false;
celody.streamInfo[0].masterVolume = 0.5;
if (jsonCurrent[jsonSlot].streamId) {
celody.streamInfo[0].streamId = validateString(filterXSS(jsonCurrent[jsonSlot].streamId),0,256);
} else {
celody.streamInfo[0].streamId = "";
}
if (jsonCurrent[jsonSlot].streamName) {
celody.streamInfo[0].streamName = validateString(filterXSS(jsonCurrent[jsonSlot].streamName),1,250);
if (!celody.streamInfo[0].streamName) {celody.streamInfo[0].error = true;}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid stream name.");
}
if (jsonCurrent[jsonSlot].artist) {
celody.streamInfo[0].artist = validateString(filterXSS(jsonCurrent[jsonSlot].artist),1,250);
if (!celody.streamInfo[0].artist) {celody.streamInfo[0].error = true;}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid artist name.");
}
if (jsonCurrent[jsonSlot].createDate) {
celody.streamInfo[0].createDate = validateString(filterXSS(jsonCurrent[jsonSlot].createDate),10,10);
if (!celody.streamInfo[0].createDate) {celody.streamInfo[0].error = true;}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid create date.");
}
if (jsonCurrent[jsonSlot].forkedFromStreamId) {
celody.streamInfo[0].forkedFromStreamId = validateString(filterXSS(jsonCurrent[jsonSlot].forkedFromStreamId),0,256);
} else {
celody.streamInfo[0].forkedFromStreamId = "";
}
if (jsonCurrent[jsonSlot].mergedFromStreamId1) {
celody.streamInfo[0].mergedFromStreamId1 = validateString(filterXSS(jsonCurrent[jsonSlot].mergedFromStreamId1),0,256);
} else {
celody.streamInfo[0].mergedFromStreamId1 = "";
}
if (jsonCurrent[jsonSlot].mergedFromStreamId2) {
celody.streamInfo[0].mergedFromStreamId2 = validateString(filterXSS(jsonCurrent[jsonSlot].mergedFromStreamId2),0,256);
} else {
celody.streamInfo[0].mergedFromStreamId2 = "";
}
if (jsonCurrent[jsonSlot].forks) {
celody.streamInfo[0].forks = validateNumber(filterXSS(jsonCurrent[jsonSlot].forks));
celody.streamInfo[0].forks = validateRange(celody.streamInfo[0].forks,0,1000000000,0,1000000000);
} else {
celody.streamInfo[0].forks = 0;
}
if (jsonCurrent[jsonSlot].merges) {
celody.streamInfo[0].merges = validateNumber(filterXSS(jsonCurrent[jsonSlot].merges));
celody.streamInfo[0].merges = validateRange(celody.streamInfo[0].merges,0,1000000000,0,1000000000);
} else {
celody.streamInfo[0].merges = 0;
}
if (jsonCurrent[jsonSlot].tokens) {
celody.streamInfo[0].tokens = validateArrayString(filterXSS(jsonCurrent[jsonSlot].tokens),"");
} else {
celody.streamInfo[0].tokens = "";
}
if (jsonCurrent[jsonSlot].tokenAddresses) {
celody.streamInfo[0].tokenAddresses = validateArrayString(filterXSS(jsonCurrent[jsonSlot].tokenAddresses),"");
} else {
celody.streamInfo[0].tokenAddresses = "";
}
if ((jsonCurrent[jsonSlot].tokens) && (jsonCurrent[jsonSlot].tokenAddresses)) {
// validate tokens correspond 1-to-1 with addresses
if (jsonCurrent[jsonSlot].tokens.length !== jsonCurrent[jsonSlot].tokenAddresses.length) {
celody.streamInfo[0].error = true;
console.log("This stream file has tokens that do not match token addresses.");
}
// cycle through to set the token-address text
celody.streamInfo[0].tokenCounter = 0;
celody.streamInfo[0].tokenDisplay = "";
while (celody.streamInfo[0].tokenCounter < jsonCurrent[jsonSlot].tokens.length) {
celody.streamInfo[0].tokenDisplay = celody.streamInfo[0].tokenDisplay + jsonCurrent[jsonSlot].tokens[celody.streamInfo[0].tokenCounter] + ": " + jsonCurrent[jsonSlot].tokenAddresses[celody.streamInfo[0].tokenCounter];
if (celody.streamInfo[0].tokenCounter < jsonCurrent[jsonSlot].tokens.length - 1) {
celody.streamInfo[0].tokenDisplay = celody.streamInfo[0].tokenDisplay + ", "
}
celody.streamInfo[0].tokenCounter++;
}
}
if (jsonCurrent[jsonSlot].module) {
celody.streamInfo[0].module = validateModule(filterXSS(jsonCurrent[jsonSlot].module));
} else {
// default to core if not specified
celody.streamInfo[0].module = "core";
}
if (jsonCurrent[jsonSlot].tempo) {
celody.streamInfo[0].tempo = validateNumber(filterXSS(jsonCurrent[jsonSlot].tempo));
celody.streamInfo[0].tempo = validateRange(celody.streamInfo[0].tempo,30,150,30,150);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid tempo.");
}
if (jsonCurrent[jsonSlot].playSpeed) {
celody.streamInfo[0].playSpeed = validateNumber(filterXSS(jsonCurrent[jsonSlot].playSpeed));
celody.streamInfo[0].playSpeed = validateRange(celody.streamInfo[0].playSpeed,0.5,2,0.5,2);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid play speed.");
}
if (jsonCurrent[jsonSlot].beatsPerBar) {
celody.streamInfo[0].beatsPerBar = validateNumber(filterXSS(jsonCurrent[jsonSlot].beatsPerBar));
celody.streamInfo[0].beatsPerBar = validateRange(celody.streamInfo[0].beatsPerBar,1,500,1,500);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid beats per bar.");
}
if (jsonCurrent[jsonSlot].bars) {
celody.streamInfo[0].bars = validateNumber(filterXSS(jsonCurrent[jsonSlot].bars));
celody.streamInfo[0].bars = validateRange(celody.streamInfo[0].bars,1,1000,1,1000);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid bars element.");
}
if (jsonCurrent[jsonSlot].baseUnit) {
celody.streamInfo[0].baseUnit = validateNumber(filterXSS(jsonCurrent[jsonSlot].baseUnit));
celody.streamInfo[0].baseUnit = validateRange(celody.streamInfo[0].baseUnit,1,1000,1,1000);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid base unit.");
}
if (jsonCurrent[jsonSlot].backgroundLevel) {
celody.streamInfo[0].backgroundLevel = validateNumber(filterXSS(jsonCurrent[jsonSlot].backgroundLevel));
celody.streamInfo[0].backgroundLevel = validateRange(celody.streamInfo[0].backgroundLevel,0,1,0.1,0.85);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid background level.");
}
if ((jsonCurrent[jsonSlot].dynamics) || (jsonCurrent[jsonSlot].dynamics === 0)) {
celody.streamInfo[0].dynamics = validateNumber(filterXSS(jsonCurrent[jsonSlot].dynamics));
celody.streamInfo[0].dynamics = validateRange(celody.streamInfo[0].dynamics,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid dynamics.");
}
if ((jsonCurrent[jsonSlot].density) || (jsonCurrent[jsonSlot].density === 0)) {
celody.streamInfo[0].density = validateNumber(filterXSS(jsonCurrent[jsonSlot].density));
celody.streamInfo[0].density = validateRange(celody.streamInfo[0].density,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid density.");
}
if ((jsonCurrent[jsonSlot].variety) || (jsonCurrent[jsonSlot].variety === 0)) {
celody.streamInfo[0].variety = validateNumber(filterXSS(jsonCurrent[jsonSlot].variety));
celody.streamInfo[0].variety = validateRange(celody.streamInfo[0].variety,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid variety.");
}
if ((jsonCurrent[jsonSlot].spread) || (jsonCurrent[jsonSlot].spread === 0)) {
celody.streamInfo[0].spread = validateNumber(filterXSS(jsonCurrent[jsonSlot].spread));
celody.streamInfo[0].spread = validateRange(celody.streamInfo[0].spread,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid spread.");
}
if ((jsonCurrent[jsonSlot].spice) || (jsonCurrent[jsonSlot].spice === 0)) {
celody.streamInfo[0].spice = validateNumber(filterXSS(jsonCurrent[jsonSlot].spice));
celody.streamInfo[0].spice = validateRange(celody.streamInfo[0].spice,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid spice.");
}
// handle the instruments validation within the stream
if ((jsonCurrent[jsonSlot].instruments) && (jsonCurrent[jsonSlot].instruments[0]) && (!celody.streamInfo[0].error)) {
celody.instrumentDisplay = "";
validateInstruments(jsonCurrent[jsonSlot].instruments);
} else {
stopStreams();
return false;
}
return false;
}
function validateInstruments(instrumentContainer) {
// get the total instruments for stream
function count(obj) { return Object.keys(obj).length; }
celody.instrumentCount = count(instrumentContainer);
celody.instrumentIndex = 0;
celody.streamInfo[0].totalSounds = 0;
celody.streamInfo[0].primarySounds = 0;
celody.counter = 0; // counter of all sounds across instruments
celody.tempSecondary = ""; // temporary holder of secondary instrument key
celody.secondaryOffset = []; // secondary instrument count from primary
celody.secondaryFlag = false; // if a secondary has been validated
// cycle through the instruments
while (celody.instrumentIndex < celody.instrumentCount) {
// get the total sounds for this instrument
if ((instrumentContainer[celody.instrumentIndex]) && (instrumentContainer[celody.instrumentIndex][0].basePhrase)) {
celody.soundCount = instrumentContainer[celody.instrumentIndex][0].basePhrase.length;
// add to totalSounds for stream
celody.streamInfo[0].totalSounds = Number(celody.streamInfo[0].totalSounds) + celody.soundCount;
} else {
celody.soundCount = 0;
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid total number of sounds.");
}
// check if primary or secondary - if primary add to primary count
if (instrumentContainer[celody.instrumentIndex][0].type) {
if (instrumentContainer[celody.instrumentIndex][0].type[0] === "primary") {
// set up the display for primary sounds
if (instrumentContainer[celody.instrumentIndex][0].instrument) {
celody.instrumentDisplay = celody.instrumentDisplay + validateString(filterXSS(instrumentContainer[celody.instrumentIndex][0].instrument),0,256);
if (celody.instrumentIndex < celody.instrumentCount - 1) {
celody.instrumentDisplay = celody.instrumentDisplay + ", ";
}
}
celody.streamInfo[0].primarySounds = Number(celody.streamInfo[0].primarySounds) + celody.soundCount;
// check that all any secondary instruments occur after all primaries
if (celody.secondaryFlag) {celody.streamInfo[0].error = true;}
// check if the primary has a linked secondary
celody.tempSecondary = "";
if (instrumentContainer[celody.instrumentIndex][0].type.length >= 2) {
celody.tempSecondary = validateString(filterXSS(instrumentContainer[celody.instrumentIndex][0].type[1]),1,1000);
// check that the secondary exists as a key
if (instrumentContainer[celody.tempSecondary]) {
// check the secondary has same number of sounds as primary
if (celody.soundCount !== instrumentContainer[celody.tempSecondary][0].basePhrase.length) {
celody.streamInfo[0].error = true;
console.log("This stream file has primary instruments that do not match secondary instruments.");
}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has invalid instrument types.");
}
}
} else if (instrumentContainer[celody.instrumentIndex][0].type[0] === "secondary") {
// set the secondary flag - because a secondary has been reached
celody.secondaryFlag = true;
// set the counter offset from the primary
celody.secondaryOffset[celody.instrumentIndex] = celody.counter;
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has invalid instrument types.");
}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has invalid instrument types.");
}
if (celody.instrumentIndex >= celody.instrumentCount - 1) {
if (celody.instrumentDisplay.endsWith(", ")) {celody.instrumentDisplay = celody.instrumentDisplay.slice(0, -2)}
}
// validate each key value in instrument
if (Number(Object.keys(instrumentContainer)[celody.instrumentIndex]) !== celody.instrumentIndex) {
// instruments should have incrmenting key values
celody.streamInfo[0].error = true;
console.log("This stream file has invalid instrument keys. Keys should increment by 1");
}
// validate instrument phrases have equal subcomponents (each sound phrase has volume,panning,etc)
if (!((instrumentContainer[celody.instrumentIndex][0].baseStart) && (instrumentContainer[celody.instrumentIndex][0].baseStart.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid baseStart array. Array elements should have an equal count across an instrument.");
}
if (!((instrumentContainer[celody.instrumentIndex][0].volumeStart) && (instrumentContainer[celody.instrumentIndex][0].volumeStart.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid volumeStart array. Array elements should have an equal count across an instrument.");
}
if (!((instrumentContainer[celody.instrumentIndex][0].fxFla) && (instrumentContainer[celody.instrumentIndex][0].fxFla.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid fxFla array. Array elements should have an equal count across an instrument.");
}
if (!((instrumentContainer[celody.instrumentIndex][0].fxLow) && (instrumentContainer[celody.instrumentIndex][0].fxLow.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid fxLow array. Array elements should have an equal count across an instrument.");
}
if (!((instrumentContainer[celody.instrumentIndex][0].fxAtt) && (instrumentContainer[celody.instrumentIndex][0].fxAtt.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid fxAtt array. Array elements should have an equal count across an instrument.");
}
if (!((instrumentContainer[celody.instrumentIndex][0].fxRel) && (instrumentContainer[celody.instrumentIndex][0].fxRel.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid fxRel array. Array elements should have an equal count across an instrument.");
}
if (!((instrumentContainer[celody.instrumentIndex][0].fxPan) && (instrumentContainer[celody.instrumentIndex][0].fxPan.length === celody.soundCount))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid fxPan array. Array elements should have an equal count across an instrument.");
}
// check if instrument is still valid
if (celody.streamInfo[0].error) {
break;
}
celody.soundIndex = 0;
// cycle through all the sounds for each instrument
while (celody.soundIndex < celody.soundCount) {
// get the options to set on existing sound
celody.soundOptions[celody.counter] = [];
if (instrumentContainer[celody.instrumentIndex][0].instrument) {
celody.soundOptions[celody.counter].instrument = validateString(filterXSS(instrumentContainer[celody.instrumentIndex][0].instrument),1,250);
if (!celody.soundOptions[celody.counter].instrument) {celody.streamInfo[0].error = true;}
} else {
console.log("This stream file has an invalid instrument name.");
celody.streamInfo[0].error = true;
}
if ((instrumentContainer[celody.instrumentIndex][0].type) && (instrumentContainer[celody.instrumentIndex][0].type.length > 0)) {
celody.soundOptions[celody.counter].type = validateString(filterXSS(instrumentContainer[celody.instrumentIndex][0].type[0]),1,10);
if (!((celody.soundOptions[celody.counter].type === "primary") || (celody.soundOptions[celody.counter].type === "secondary"))) {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument type.");
}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument type.");
}
if ((instrumentContainer[celody.instrumentIndex][0].type) && (instrumentContainer[celody.instrumentIndex][0].type.length > 1)) {
celody.soundOptions[celody.counter].secondary = validateString(filterXSS(instrumentContainer[celody.instrumentIndex][0].type[1]),1,10);
} else {
celody.soundOptions[celody.counter].secondary = "";
}
if (instrumentContainer[celody.instrumentIndex][0].color) {
celody.soundOptions[celody.counter].color = validateString(filterXSS(instrumentContainer[celody.instrumentIndex][0].color),0,50);
} else {
celody.soundOptions[celody.counter].color = "";
}
if ((instrumentContainer[celody.instrumentIndex][0].basePhrase) && (instrumentContainer[celody.instrumentIndex][0].basePhrase.length >= celody.soundIndex)) {
celody.fileSourceIndex = validateNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].basePhrase[celody.soundIndex]));
if ((instrumentContainer[celody.instrumentIndex][0].fileSource) && (instrumentContainer[celody.instrumentIndex][0].fileSource.length > celody.fileSourceIndex)) {
celody.soundOptions[celody.counter].filePath = validateUrl(filterXSS(instrumentContainer[celody.instrumentIndex][0].fileSource[celody.fileSourceIndex]),celody);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument fileSource or basePhrase.");
}
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument basePhrase.");
}
if ((instrumentContainer[celody.instrumentIndex][0].baseStart) && (instrumentContainer[celody.instrumentIndex][0].baseStart.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].baseStart = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].baseStart[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].baseStart = validateRange(celody.soundOptions[celody.counter].baseStart,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument baseStart.");
}
if ((instrumentContainer[celody.instrumentIndex][0].volumeStart) && (instrumentContainer[celody.instrumentIndex][0].volumeStart.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].volumeStart = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].volumeStart[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].volumeStart = validateRange(celody.soundOptions[celody.counter].volumeStart,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument volumeStart.");
}
if ((instrumentContainer[celody.instrumentIndex][0].fxFla) && (instrumentContainer[celody.instrumentIndex][0].fxFla.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].fxFla = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].fxFla[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].fxFla = validateRange(celody.soundOptions[celody.counter].fxFla,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument fxFla.");
}
if ((instrumentContainer[celody.instrumentIndex][0].fxLow) && (instrumentContainer[celody.instrumentIndex][0].fxLow.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].fxLow = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].fxLow[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].fxLow = validateRange(celody.soundOptions[celody.counter].fxLow,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument fxLow.");
}
if ((instrumentContainer[celody.instrumentIndex][0].fxAtt) && (instrumentContainer[celody.instrumentIndex][0].fxAtt.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].fxAtt = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].fxAtt[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].fxAtt = validateRange(celody.soundOptions[celody.counter].fxAtt,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument fxAtt.");
}
if ((instrumentContainer[celody.instrumentIndex][0].fxRel) && (instrumentContainer[celody.instrumentIndex][0].fxRel.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].fxRel = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].fxRel[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].fxRel = validateRange(celody.soundOptions[celody.counter].fxRel,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument fxRel.");
}
if ((instrumentContainer[celody.instrumentIndex][0].fxPan) && (instrumentContainer[celody.instrumentIndex][0].fxPan.length >= celody.soundIndex)) {
celody.soundOptions[celody.counter].fxPan = validateArrayNumber(filterXSS(instrumentContainer[celody.instrumentIndex][0].fxPan[celody.soundIndex]),celody);
celody.soundOptions[celody.counter].fxPan = validateRange(celody.soundOptions[celody.counter].fxPan,0,1,0,1);
} else {
celody.streamInfo[0].error = true;
console.log("This stream file has an invalid instrument fxPan.");
}
if (celody.streamInfo[0].error) {
celody.streamInfo[0].primarySounds = 0;
celody.streamInfo[0].totalSounds = 0;
stopStreams();
return false;
}
celody.counter++;
celody.soundIndex++;
}
celody.instrumentIndex++;
}
// if there are no errors, move to loading sounds
if (!celody.streamInfo[0].error) {loadInstrumentSounds(instrumentContainer);}
return false;
}
function loadInstrumentSounds(instrumentContainer) {
celody.counter = 0; // reset counter of all sounds across instruments
celody.soundLoaded = 0; // how many sounds have fully loaded
celody.instrumentIndex = 0;
// cycle through the instruments
while (celody.instrumentIndex < celody.instrumentCount) {
celody.soundIndex = 0;
celody.soundCount = instrumentContainer[celody.instrumentIndex][0].basePhrase.length;
// cycle through all the sounds for each instrument
while (celody.soundIndex < celody.soundCount) {
celody.soundOptions[celody.counter].offsetFromPrimary = celody.counter;
// if secondary exists, calculate the final offset from the primary sound
if ((celody.soundOptions[celody.counter].type === "primary") && (celody.soundOptions[celody.counter].secondary)) {
celody.soundOptions[celody.counter].offsetFromPrimary = celody.soundIndex + celody.secondaryOffset[Number(celody.soundOptions[celody.counter].secondary)];
}
// create a new sound
celody.soundFile[celody.counter] = new Pizzicato.Sound({
source: 'file',
options: {
path: [celody.soundOptions[celody.counter].filePath],
volume: celody.soundOptions[celody.counter].volumeStart,
release: celody.soundOptions[celody.counter].fxRel,
attack: celody.soundOptions[celody.counter].fxAtt,
detached: false
}
}, function(error) {
if (error) {
console.log("Your internet connection may down because audio did not load. Try reloading page.");
stopStreams();
return false;
} else {
// increment the load count
celody.soundLoaded++;
// check final sound loaded, then play
if (celody.soundLoaded == celody.streamInfo[0].totalSounds) {
//set the background level of main sound canvas
Pizzicato.volume = validateRange((1 - Number(celody.streamInfo[0].backgroundLevel)),0,1,0.1,0.85);
//play using specified module
playCoreStream(celody,0);
}
}
});
// create the fx for the sound
celody.soundFX[celody.counter] = [];
celody.soundFX[celody.counter].fxFla = new Pizzicato.Effects.Flanger({
time: 0.48,
speed: celody.soundOptions[celody.counter].fxFla,
depth: 0.41,
feedback: 0.11,
mix: 0.3
});
celody.soundFX[celody.counter].fxLow = new Pizzicato.Effects.LowPassFilter({
frequency: Math.round( celody.soundOptions[celody.counter].fxLow * 22000),
peak: 10
});
celody.soundFX[celody.counter].fxPan = new Pizzicato.Effects.StereoPanner({
pan: Math.round( ((celody.soundOptions[celody.counter].fxPan * 2) - 1) * 10 ) / 10,
});
celody.counter++;
celody.soundIndex++;
}
celody.instrumentIndex++;
}
return false;
}
return false;
}
var celodyLoopTimer;
function playCoreStream(celody,loopCount) {
celody.countIndex = 0;
celody.countMax = 0;
celody.countOffset = 0;
celody.masterStart = 0;
celody.tempClone = [];
// set the number of sounds across the primary loop only (excludes variety sounds)
if (celody.soundOptions) {celody.countMax = celody.streamInfo[0].primarySounds;}
if ((!celody.soundOptions) || (!celody.streamInfo[0].primarySounds)) {
console.log("This stream has no sounds. Try reloading page or choosing a different stream.");
stopStreams();
return false;
}
// tempo shifting using variety
celody.timePerBase = ((60 / (Number(celody.streamInfo[0].tempo) + Math.floor(Math.random() * celody.streamInfo[0].tempo * celody.streamInfo[0].variety) + 1) ) * (celody.streamInfo[0].beatsPerBar / celody.streamInfo[0].baseUnit)); // seconds per base unit note
celody.timePerLoop = celody.timePerBase * celody.streamInfo[0].baseUnit * celody.streamInfo[0].bars; // seconds per loop
// playback rate using variety - adjusts pitch of entire loop
celody.playRate = celody.streamInfo[0].playSpeed;
if (Math.random() < celody.streamInfo[0].variety) {
switch(Math.floor(Math.random() * 6) + 1) {
case 1:
celody.playRate = 0.5 * celody.playRate;
break;
case 2:
celody.playRate = 0.66 * celody.playRate;
break;
case 3:
celody.playRate = 0.75 * celody.playRate;
break;
case 4:
celody.playRate = 1.33 * celody.playRate;
break;
case 5:
celody.playRate = 1.5 * celody.playRate;
break;
case 6:
celody.playRate = 2.0 * celody.playRate;
break;
default:
celody.playRate = 1.0 * celody.playRate;
}
}
// adjust the loop time by the playRate
if (Number(celody.playRate) > 0) {
celody.timePerLoop = celody.timePerLoop / Number(celody.playRate);
}
// handle drums for smoother rhythm: loop is either primary, secondary or mute
celody.drumIndex = "primary";
if (Math.random() - (0.8 * Math.random()) > celody.streamInfo[0].density) {
celody.drumIndex = "mute";
} else if (Math.random() > 0.7) {
celody.drumIndex = "secondary";
}
// check for extreme loops
if (!Number.isFinite(celody.timePerLoop)) {
console.log("There is a problem with this stream. Try playing a different one.");
return false;
} else if (celody.timePerLoop < 2) {
console.log("Your tempo is too fast. Please slow it down to lengthen the loop.");
return false;
} else if (celody.timePerLoop > 1 * 60 * 60) {
console.log("Your tempo is too slow. Please speed it up to shorten the loop.");
return false;
}
// cycle through each primary sound
while (celody.countIndex < celody.countMax) {
// pick primary or secondary sound source
celody.countOffset = celody.countIndex;
if ((celody.soundOptions[celody.countOffset].type === "primary") && (celody.soundOptions[celody.countOffset].secondary)) {
// get the lookup offset to the secondary source
if ((celody.soundOptions[celody.countOffset].instrument === "drum") && (celody.drumIndex === "secondary")) {
celody.countOffset = Number(celody.soundOptions[celody.countIndex].offsetFromPrimary);
} else if (Math.random() > 0.7) {
celody.countOffset = Number(celody.soundOptions[celody.countIndex].offsetFromPrimary);
}
}
// dynamics - alter the volume of the phrase envelope
celody.tempVol = validateRange((celody.soundOptions[celody.countOffset].volumeStart * Math.round( (celody.streamInfo[0].masterVolume / 0.5) * 10 ) / 10),0,1,0.1,0.85);
celody.tempVol = randomDirection(celody.tempVol,Number(celody.tempVol),Number(Math.round( (celody.streamInfo[0].dynamics / 8) * 10 ) / 10));
// density - mute the sound to make phrase more sparse
if ((celody.soundOptions[celody.countOffset].instrument === "drum") && (celody.drumIndex === "mute")) {
celody.tempVol = 0;
} else if (Math.random() - (0.8 * Math.random()) > celody.streamInfo[0].density) {celody.tempVol = 0;}
celody.tempRel = celody.soundOptions[celody.countOffset].fxRel;
celody.tempAtt = celody.soundOptions[celody.countOffset].fxAtt;
// spread - variable panning of the phrase
celody.tempPan = randomDirection(celody.tempPan,Number(celody.soundOptions[celody.countOffset].fxPan),Number(celody.streamInfo[0].spread * Math.random() * 0.5));
// spice - variable addition of effect filters
celody.tempFla = celody.soundOptions[celody.countOffset].fxFla;
celody.tempLow = celody.soundOptions[celody.countOffset].fxLow;
if (Math.random() < celody.streamInfo[0].spice * 0.85) {
if (Math.random() > 0.5) {
celody.tempFla = randomDirection(celody.tempFla,Number(celody.tempFla),Number(celody.streamInfo[0].spice * Math.random()));
} else {
celody.tempLow = randomDirection(celody.tempLow,Number(celody.tempLow),Number(celody.streamInfo[0].spice * Math.random()));
}
// lower volume to prevent clipping
if ((celody.soundOptions[celody.countOffset].instrument !== "drum") && (celody.drumIndex !== "mute")) {celody.tempVol = 0.3;}
}
celody.tempOffset = celody.soundOptions[celody.countOffset].baseStart;
// reset volume and effects
celody.soundFile[celody.countOffset].volume = celody.tempVol;
celody.soundFile[celody.countOffset].release = celody.tempRel;
celody.soundFile[celody.countOffset].attack = celody.tempAtt;
celody.soundFX[celody.countOffset].fxFla.speed = celody.tempFla;
celody.soundFX[celody.countOffset].fxLow.frequency = Math.round( celody.tempLow * 22000);
celody.soundFX[celody.countOffset].fxPan.pan = Math.round( ((celody.tempPan * 2) - 1) * 10 ) / 10;
// handle pan if not added - if already added, value should be reset (no remove)
if (celody.soundFile[celody.countOffset].effects.indexOf(celody.soundFX[celody.countOffset].fxPan) < 0) {celody.soundFile[celody.countOffset].addEffect(celody.soundFX[celody.countOffset].fxPan)}
// remove all added effects - required to recover from browser fx crashes (throws warning)
if (celody.soundFile[celody.countOffset].effects.indexOf(celody.soundFX[celody.countOffset].fxFla) >= 0) {celody.soundFile[celody.countOffset].removeEffect(celody.soundFX[celody.countOffset].fxFla);}
if (celody.soundFile[celody.countOffset].effects.indexOf(celody.soundFX[celody.countOffset].fxLow) >= 0) {celody.soundFile[celody.countOffset].removeEffect(celody.soundFX[celody.countOffset].fxLow);}
// add effects (not bypassed)
if ((celody.tempFla >= 0.11) && (celody.soundFile[celody.countOffset].effects.indexOf(celody.soundFX[celody.countOffset].fxFla) < 0)) {celody.soundFile[celody.countOffset].addEffect(celody.soundFX[celody.countOffset].fxFla)}
if ((celody.tempLow >= 0.11) && (celody.soundFile[celody.countOffset].effects.indexOf(celody.soundFX[celody.countOffset].fxLow) < 0)) {celody.soundFile[celody.countOffset].addEffect(celody.soundFX[celody.countOffset].fxLow)}
// on play of first sound, set the master time start
if (!celody.masterStart) {celody.masterStart = performance.now();}
// make sure sum of actions isn't longer than loop time
celody.streamInfo[0].performanceNow = performance.now();
if (celody.streamInfo[0].performanceNow - celody.masterStart < (celody.timePerLoop * 1000)) {
// clone the object to allow for smooth overlapping of longer sounds
celody.tempClone[celody.countIndex] = celody.soundFile[celody.countOffset].clone();
// trigger play file adjusting to the master time start
if (celody.streamInfo[0].performanceNow - celody.masterStart < (celody.tempOffset * celody.timePerLoop * 1000)) {
celody.tempClone[celody.countIndex].play((celody.tempOffset * celody.timePerLoop) - ((celody.streamInfo[0].performanceNow - celody.masterStart) / 1000),0);
celody.tempClone[celody.countIndex].sourceNode.playbackRate.value = celody.playRate;
} else {
// trigger immediately because sound should already have started
celody.tempClone[celody.countIndex].play(0,0);
}
// remove sound for memory management
celody.tempClone[celody.countIndex].on('end', (function(tempClone,countIndex) {
tempClone[countIndex].disconnect();
})(celody.tempClone,celody.countIndex))
} else {
console.log("actions took too long")
break;
}
celody.countIndex++;
}
// play the next loop recursively
loopCount++;
if (celody.streamInfo[0].stop) {
// stream has been stopped
celody.countIndex = 0;
while (celody.countIndex < celody.streamInfo[0].primarySounds) {
if (celody.tempClone[celody.countIndex]) {celody.tempClone[celody.countIndex].stop();}
celody.countIndex++;
}
// clear any timeouts
if (celodyLoopTimer) {clearTimeout(celodyLoopTimer);}
} else if (performance.now() - celody.masterStart > (celody.timePerLoop * 1000)) {
// play immediately because loop has expired
playCoreStream(celody,loopCount);
} else {
celodyLoopTimer = setTimeout(function(){ playCoreStream(celody,loopCount); }, (celody.timePerLoop * 1000) - (performance.now() - celody.masterStart));
}
return false;
}
function stopStreams() {
// stop all sounds and prevent any more loops
if ((celody.streamInfo) && (celody.streamInfo[0])) {
celody.streamInfo[0].stop = true;
} else {
celody.streamInfo = [];
celody.streamInfo[0] = [];
celody.streamInfo[0].stop = true;
}
if ((celody.streamInfo) && (celody.streamInfo[0]) && (celody.soundOptions)) {
celody.countMax = celody.streamInfo[0].primarySounds;
} else {
celody.countMax = 0;
}
// clear any timeouts
if (celodyLoopTimer) {clearTimeout(celodyLoopTimer);}
celody.countIndex = 0;
while (celody.countIndex < celody.countMax) {
if (celody.tempClone[celody.countIndex]) {celody.tempClone[celody.countIndex].stop();}
celody.countIndex++;
}
return false;
}
// validation functions
function validateString(input,min,max) {
if (input) { if ((input.length < min) || (input.length > max)) {input = "";} }
return input;
}
function validateNumber(input) {
input = Number(input);
if (input) { if (!Number.isFinite(input)) {input = 0;}
} else {input = 0;}
return input;
}
function validateFlag(input) {
if (input !== "yes") {input = "no";}
return input;
}
function validateUrl(input,celody) {
if (input) {
if ((input.length < 1) || (input.length > 100000) || (!input.startsWith("https://"))) {
input = "";
celody.streamInfo[0].error = true;}
} else {celody.streamInfo[0].error = true;}
return input;
}
function validateArrayString(inputs,celody) {
var inputLength = 0;
var inputCounter = 0;
if (inputs) {inputLength = inputs.length;}
while (inputCounter < inputLength) {
inputs[inputCounter] = validateString(filterXSS(inputs[inputCounter]),0,2000);
if (!inputs[inputCounter]) {celody.streamInfo[0].error = true;}
inputCounter++;
}
return inputs;
}
function validateArrayNumber(inputs,celody) {
var tempInput = Number(inputs);
if (!Number.isFinite(tempInput)) {
inputs = 0;
celody.streamInfo[0].error = true;
}
return inputs;
}
function validateRange(input,min,max,outMin,outMax) {
if (input >= max) {input = outMax;} else if (input <= min) {input = outMin;}
return input;
}
function validateModule(input) {
if (input) {
if ((input === "core") || (input === "tight") || (input === "slowdeep") || (input === "chipmunk") || (input === "nutzo") || (input === "downhill") || (input === "uphill") || (input === "seesaw") || (input === "timeofday") || (input === "weekend") || (input === "location") || (input === "speed") || (input === "airplane") || (input === "compass")) {
// do nothing - module is valid
} else {input = "core";}
} else {input = "core";}
return input;
}
function randomDirection(input,parameter1,parameter2) {
if (Math.random() > 0.5) {
input = validateRange((parameter1 - parameter2),0,1,0.1,0.85);
} else {
input = validateRange((parameter1 + parameter2),0,1,0.1,0.85);
}
return input;
}
function randomDirectionOffset(input,parameter1,parameter2,parameter3) {
if (Math.random() > 0.5) {
input = parameter1 - parameter2;
} else {
input = parameter1 - parameter2;
}
// check that offset does not exceed loop start-end
if ((input < 0.01) || (input > 0.99)) {
input = parameter3;
}
return input;
}
function isJson(item) {
item = typeof item !== "string"
? JSON.stringify(item)
: item;
try {
item = JSON.parse(item);
} catch (e) {
return false;
}
if (typeof item === "object" && item !== null) {
return true;
}
return false;
}