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Sound.js
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Sound.js
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class Sound {
/**
* Constructor for Sound.
*/
constructor() {
setTimeout(() => {
let audio = new Audio();
let player = new CPlayer();
player.init(Sound.SONG);
// Using only 4 instruments. This saves a bit of space.
player.generate();
player.generate();
player.generate();
player.generate();
audio.src = URL.createObjectURL(new Blob([player.createWave()], {type: "audio/wav"}));
// This is background music, so we set it to loop and turn the volume down a bit.
audio.loop = true;
audio.volume = 1.0;
this.song = audio;
}, 1);
}
/**
* Starts playing the game music.
*/
playSong() {
this.song.play();
}
/**
* This is background music, composed on and generated by the SoundBox.
*/
static SONG = {
songData: [
{ // Instrument 0
i: [
2, // OSC1_WAVEFORM
100, // OSC1_VOL
128, // OSC1_SEMI
0, // OSC1_XENV
3, // OSC2_WAVEFORM
201, // OSC2_VOL
128, // OSC2_SEMI
0, // OSC2_DETUNE
0, // OSC2_XENV
0, // NOISE_VOL
0, // ENV_ATTACK
6, // ENV_SUSTAIN
29, // ENV_RELEASE
0, // ARP_CHORD
0, // ARP_SPEED
0, // LFO_WAVEFORM
195, // LFO_AMT
4, // LFO_FREQ
1, // LFO_FX_FREQ
3, // FX_FILTER
50, // FX_FREQ
184, // FX_RESONANCE
119, // FX_DIST
244, // FX_DRIVE
147, // FX_PAN_AMT
6, // FX_PAN_FREQ
84, // FX_DELAY_AMT
6 // FX_DELAY_TIME
],
// Patterns
p: [1,2,1,2,1,2,1,2,2,2,2,2,3,2,3,2],
// Columns
c: [
{n: [130,,135,,139,,142,,140,,139,,135,,137,,135,,139,,137,,135],
f: []},
{n: [130,,134,,135,,130,,134,,135,,130,,134,,135,,130,,134,,135],
f: []},
{n: [130,,135,,137,,130,,135,,137,,130,,135,,137,,130,,135,,137],
f: []}
]
},
{ // Instrument 1
i: [
2, // OSC1_WAVEFORM
100, // OSC1_VOL
128, // OSC1_SEMI
0, // OSC1_XENV
3, // OSC2_WAVEFORM
201, // OSC2_VOL
128, // OSC2_SEMI
0, // OSC2_DETUNE
0, // OSC2_XENV
0, // NOISE_VOL
5, // ENV_ATTACK
6, // ENV_SUSTAIN
58, // ENV_RELEASE
0, // ARP_CHORD
0, // ARP_SPEED
0, // LFO_WAVEFORM
195, // LFO_AMT
6, // LFO_FREQ
1, // LFO_FX_FREQ
2, // FX_FILTER
135, // FX_FREQ
0, // FX_RESONANCE
0, // FX_DIST
32, // FX_DRIVE
147, // FX_PAN_AMT
6, // FX_PAN_FREQ
121, // FX_DELAY_AMT
6 // FX_DELAY_TIME
],
// Patterns
p: [1,2,3,4,1,2,3,4,5,4,3,4,5,4,3,4],
// Columns
c: [
{n: [111,,123,,,,111,,123,,,,111,,123,,,,111,,123],
f: []},
{n: [115,,115,,,,115,,127,,,,115,,127,,,,115,,127],
f: []},
{n: [116,,128,,,,116,,128,,,,116,,128,,,,116,,128],
f: []},
{n: [118,,130,,,,118,,130,,,,118,,130,,,,118,,130],
f: []},
{n: [120,,132,,,,,,,,,,120,,132],
f: []}
]
},
{ // Instrument 2
i: [
2, // OSC1_WAVEFORM
192, // OSC1_VOL
128, // OSC1_SEMI
0, // OSC1_XENV
2, // OSC2_WAVEFORM
192, // OSC2_VOL
140, // OSC2_SEMI
18, // OSC2_DETUNE
0, // OSC2_XENV
0, // NOISE_VOL
158, // ENV_ATTACK
119, // ENV_SUSTAIN
158, // ENV_RELEASE
0, // ARP_CHORD
0, // ARP_SPEED
0, // LFO_WAVEFORM
0, // LFO_AMT
0, // LFO_FREQ
0, // LFO_FX_FREQ
2, // FX_FILTER
5, // FX_FREQ
0, // FX_RESONANCE
0, // FX_DIST
32, // FX_DRIVE
0, // FX_PAN_AMT
0, // FX_PAN_FREQ
24, // FX_DELAY_AMT
8 // FX_DELAY_TIME
],
// Patterns
p: [,,,,1,1,1,1,,,,,1,1,1,1],
// Columns
c: [
{n: [142],
f: []}
]
},
{ // Instrument 3
i: [
0, // OSC1_WAVEFORM
0, // OSC1_VOL
140, // OSC1_SEMI
0, // OSC1_XENV
0, // OSC2_WAVEFORM
0, // OSC2_VOL
140, // OSC2_SEMI
0, // OSC2_DETUNE
0, // OSC2_XENV
255, // NOISE_VOL
158, // ENV_ATTACK
158, // ENV_SUSTAIN
158, // ENV_RELEASE
0, // ARP_CHORD
0, // ARP_SPEED
0, // LFO_WAVEFORM
51, // LFO_AMT
2, // LFO_FREQ
1, // LFO_FX_FREQ
2, // FX_FILTER
58, // FX_FREQ
239, // FX_RESONANCE
0, // FX_DIST
32, // FX_DRIVE
88, // FX_PAN_AMT
1, // FX_PAN_FREQ
157, // FX_DELAY_AMT
2 // FX_DELAY_TIME
],
// Patterns
p: [,,,,,,,,1,1,1,1,1,1,1],
// Columns
c: [
{n: [142],
f: []}
]
},
],
rowLen: 5513, // In sample lengths
patternLen: 24, // Rows per pattern
endPattern: 15, // End pattern
numChannels: 4 // Number of channels
};
}