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Constants.js
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Constants.js
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// Images
const audioCtx = new (window.AudioContext || window.webkitAudioContext)();
const gain = audioCtx.createGain();
gain.gain.value = 0.33;
gain.connect(audioCtx.destination);
function Asset(src) {
var im = new Image();
im.src = "./assets/" + src;
im.addEventListener("load", sAsset)
return im;
}
window.addEventListener("loadImg", () => {
imgdata = {};
imgdata["gear"] = Asset("gear.png");
imgdata["arack"] = {"off": Asset("arack.png"), "on": Asset("arack_on.png")};
imgdata["piano"] = {"off": Asset("piano.png"), "on": Asset("piano_on.png")};
imgdata["flat_piano"] = {"off": Asset("flat_piano.png"), "on": Asset("flat_piano_on.png")};
imgdata["sharp_piano"] = {"off": Asset("sharp_piano.png"), "on": Asset("sharp_piano_on.png")};
imgdata["drum"] = {"off": Asset("drum.png"), "on": Asset("drum_on.png")};
imgdata["bass"] = {"off": Asset("bass.png"), "on": Asset("bass_on.png")};
imgdata["flat_bass"] = {"off": Asset("flat_bass.png"), "on": Asset("flat_bass_on.png")};
imgdata["sharp_bass"] = {"off": Asset("sharp_bass.png"), "on": Asset("sharp_bass_on.png")};
imgdata["spooky_note"] = {"off": Asset("spooky_note.png"), "on": Asset("spooky_on.png")};
imgdata["festive_note"] = {"off": Asset("festive_note.png"), "on": Asset("festive_on.png")};
imgdata["sax"] = {"off": Asset("sax.png"), "on": Asset("sax_on.png")};
imgdata["flat_sax"] = {"off": Asset("flat_sax.png"), "on": Asset("flat_sax_on.png")};
imgdata["sharp_sax"] = {"off": Asset("sharp_sax.png"), "on": Asset("sharp_sax_on.png")};
imgdata["repeat_begin"] = {"off": Asset("repeat_begin.png"), "on": Asset("repeat_begin_on.png")};
imgdata["repeat_end"] = {"off": Asset("repeat_end.png"), "on": Asset("repeat_end_on.png")};
imgdata["blank"] = {"off": Asset("blank.png"), "on": Asset("blank_on.png")};
imgdata["flute"] = {"off": Asset("flute.png"), "on": Asset("flute_on.png")};
imgdata["flat_flute"] = {"off": Asset("flat_flute.png"), "on": Asset("flat_flute_on.png")};
imgdata["sharp_flute"] = {"off": Asset("sharp_flute.png"), "on": Asset("sharp_flute_on.png")};
imgdata["spanish_guitar"] = {"off": Asset("spanish_guitar.png"), "on": Asset("spanish_guitar_on.png")};
imgdata["flat_spanish_guitar"] = {"off": Asset("flat_spanish_guitar.png"), "on": Asset("flat_spanish_guitar_on.png")};
imgdata["sharp_spanish_guitar"] = {"off": Asset("sharp_spanish_guitar.png"), "on": Asset("sharp_spanish_guitar_on.png")};
imgdata["violin"] = {"off": Asset("violin.png"), "on": Asset("violin_on.png")};
imgdata["flat_violin"] = {"off": Asset("flat_violin.png"), "on": Asset("flat_violin_on.png")};
imgdata["sharp_violin"] = {"off": Asset("sharp_violin.png"), "on": Asset("sharp_violin_on.png")};
imgdata["lyre"] = {"off": Asset("lyre.png"), "on": Asset("lyre_on.png")};
imgdata["flat_lyre"] = {"off": Asset("flat_lyre.png"), "on": Asset("flat_lyre_on.png")};
imgdata["sharp_lyre"] = {"off": Asset("sharp_lyre.png"), "on": Asset("sharp_lyre_on.png")};
imgdata["electric_guitar"] = {"off": Asset("el_guitar.png"), "on": Asset("el_guitar_on.png")};
imgdata["flat_electric_guitar"] = {"off": Asset("flat_el_guitar.png"), "on": Asset("flat_el_guitar_on.png")};
imgdata["sharp_electric_guitar"] = {"off": Asset("sharp_el_guitar.png"), "on": Asset("sharp_el_guitar_on.png")};
imgdata["mexican_trumpet"] = {"off": Asset("mexican_trumpet.png"), "on": Asset("mexican_trumpet_on.png")};
imgdata["flat_mexican_trumpet"] = {"off": Asset("flat_mexican_trumpet.png"), "on": Asset("flat_mexican_trumpet_on.png")};
imgdata["sharp_mexican_trumpet"] = {"off": Asset("sharp_mexican_trumpet.png"), "on": Asset("sharp_mexican_trumpet_on.png")};
img = imgdata["piano"].off;
});
function sAsset(f) {
return window.dispatchEvent(new CustomEvent("loadedAsset", {
detail: {
file: f.target.src
}
}));
}
var audioStor = {};
audioStor["spooky"] = {"regular": {}};
audioStor["piano"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["drum"] = {"regular": {}};
audioStor["bass"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["sax"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["festive"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["flute"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["spanish_guitar"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["violin"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["lyre"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["electric_guitar"] = {"regular": {}, "flat": {}, "sharp": {}};
audioStor["mexican_trumpet"] = {"regular": {}, "flat": {}, "sharp": {}};
var range_normal = [1, 3, 5, 6, 8, 10, 12, 13, 15, 17, 18, 20, 22, 24];
var range_letters = ["c","d","e","f","g","a","b","C","D","E","F","G","A","B"];
var range_flat = [0, 2, 4, 5, 7, 9, 11, 12, 14, 16, 17, 19, 21, 23, 25];
var half_range = [6, 5, 4, 3, 2, 1, 0];
var half_letters = ["C","D","E","F","G","A","B"];
function createAudioStorCache(stem, fullRange, hasFlats, letter, numType, fileStem) {
var res = {"regular":{}};
if (hasFlats === true && fullRange) {
res["flat"] = {};
res["sharp"] = {};
}
if (!fileStem)
fileStem = stem;
var rangeToUse = fullRange ? range_normal : half_range;
var letters = rangeToUse.length == 7 ? half_letters : range_letters;
for (var k = 0; k < rangeToUse.length; k++) {
var noteBuild = new Note_V2({
key: letters[k],
path: fileStem + "_" + rangeToUse[k] + ".wav",
type: stem,
stem: stem,
numType: numType,
gearType: letter,
audioCtx: audioCtx
});
res.regular[k] = noteBuild;
// e# -> f, E# -> F, b# -> C
if (hasFlats === true && fullRange == true && (letters[k] == "f" || letters[k] == "F" || letters[k] == "C")) {
var noteBuild = new Note_V2({
key: range_letters[k-1],
path: fileStem + "_" + rangeToUse[k] + ".wav",
type: "sharp_" + stem,
stem: stem,
numType: numType + 2,
gearType: letter,
audioCtx: audioCtx
});
res.sharp[k-1] = noteBuild;
}
}
if (hasFlats == true && fullRange == true) {
for (var k = 0; k < range_flat.length - 1; k++) {
var noteBuild = new Note_V2({
key: letters[k],
path: fileStem + "_" + range_flat[k] + ".wav",
type: "flat_" + stem,
stem: stem,
flat: true,
numType: numType + 1,
gearType: letter,
audioCtx: audioCtx
});
res.flat[k] = noteBuild;
if (letters[k] != "e" && letters[k] != "E" && letters[k] != "b") {
var noteBuild = new Note_V2({
key: range_letters[k],
path: fileStem + "_" + range_flat[k+1] + ".wav",
type: "sharp_" + stem,
stem: stem,
sharp: true,
numType: numType +2,
gearType: letter,
audioCtx: audioCtx
});
res.sharp[k] = noteBuild;
}
}
}
return res;
}
audioStor["spooky"] = createAudioStorCache("spooky_note", true, false, "-", 7, "spooky");
audioStor["festive"] = createAudioStorCache("festive_note", true, false, "-", 14, "festive");
audioStor["piano"] = createAudioStorCache("piano", true, true, "P", 0);
audioStor["drum"] = createAudioStorCache("drum", false, false, "D", 3);
audioStor["bass"] = createAudioStorCache("bass", true, true, "B", 4);
audioStor["sax"] = createAudioStorCache("sax", true, true, "S", 8);
audioStor["flute"] = createAudioStorCache("flute", true, true, "F", 15);
audioStor["spanish_guitar"] = createAudioStorCache("spanish_guitar", true, true, "G", 18);
audioStor["violin"] = createAudioStorCache("violin", true, true, "V", 21);
audioStor["lyre"] = createAudioStorCache("lyre", true, true, "L", 24);
audioStor["electric_guitar"] = createAudioStorCache("electric_guitar", true, true, "E", 27);
audioStor["mexican_trumpet"] = createAudioStorCache("mexican_trumpet", true, true, "T", 30);
function toNote(convert, state) {
if (state === 13) return new Note_V2({
key: line(convert),
type: "blank",
audioCtx: audioCtx
});
if (state > 10) {
switch (state) {
case 11:
return new Note_V2({
key: line(convert),
type: "repeat_begin",
audioCtx: audioCtx
});
case 12:
return new Note_V2({
key: line(convert),
type: "repeat_end",
audioCtx: audioCtx
});
}
}
if (state === 0) { return audioStor["piano"].regular[convert-1]; }
if (state === 1) { return audioStor["piano"].flat[convert-1]; }
if (state === 2) { return audioStor["piano"].sharp[convert-1]; }
if (state === 3) {
if (convert > 7) { convert -= 7; }
return audioStor["drum"].regular[convert - 1];
}
if (state === 4) { return audioStor["bass"].regular[convert-1]; }
if (state === 5) { return audioStor["bass"].flat[convert-1]; }
if (state === 6) { return audioStor["bass"].sharp[convert-1]; }
if (state === 7) { return audioStor["spooky"].regular[convert-1]; }
if (state === 8) { return audioStor["sax"].regular[convert-1]; }
if (state === 9) { return audioStor["sax"].flat[convert-1]; }
if (state === 10) { return audioStor["sax"].sharp[convert-1]; }
if (state === 14) { return audioStor["festive"].regular[convert-1]; }
if (state === 15) { return audioStor["flute"].regular[convert-1]; }
if (state === 16) { return audioStor["flute"].flat[convert-1]; }
if (state === 17) { return audioStor["flute"].sharp[convert-1]; }
if (state === 18) { return audioStor["spanish_guitar"].regular[convert-1]; }
if (state === 19) { return audioStor["spanish_guitar"].flat[convert-1]; }
if (state === 20) { return audioStor["spanish_guitar"].sharp[convert-1]; }
if (state === 21) { return audioStor["violin"].regular[convert-1]; }
if (state === 22) { return audioStor["violin"].flat[convert-1]; }
if (state === 23) { return audioStor["violin"].sharp[convert-1]; }
if (state === 24) { return audioStor["lyre"].regular[convert-1]; }
if (state === 25) { return audioStor["lyre"].flat[convert-1]; }
if (state === 26) { return audioStor["lyre"].sharp[convert-1]; }
if (state === 27) { return audioStor["electric_guitar"].regular[convert-1]; }
if (state === 28) { return audioStor["electric_guitar"].flat[convert-1]; }
if (state === 29) { return audioStor["electric_guitar"].sharp[convert-1]; }
if (state === 30) { return audioStor["mexican_trumpet"].regular[convert-1]; }
if (state === 31) { return audioStor["mexican_trumpet"].flat[convert-1]; }
if (state === 32) { return audioStor["mexican_trumpet"].sharp[convert-1]; }
return null;
}