Files
aklive2d/src/components/music.js
2023-03-15 21:27:34 -04:00

120 lines
2.7 KiB
JavaScript

export default class Music {
#el
#mapping = JSON.parse(import.meta.env.VITE_MUSIC_MAPPING)
#folder = import.meta.env.VITE_MUSIC_FOLDER
#currentMusic = null
#audioIntroEl
#audioLoopEl
#audioIntroElId = 'music-intro'
#audioLoopElId = 'music-loop'
#useMusic = false
#timeOffset = 0.3
#volume = 0.5
constructor(el) {
this.#el = el
this.#insertHTML()
this.#audioIntroEl = document.getElementById(this.#audioIntroElId)
this.#audioLoopEl = document.getElementById(this.#audioLoopElId)
this.#audioIntroEl.volume = this.#volume
this.#audioLoopEl.volume = this.#volume
this.#audioIntroEl.ontimeupdate = () => {
if (this.#audioIntroEl.currentTime >= this.#audioIntroEl.duration - this.#timeOffset) {
this.#audioIntroEl.pause()
this.#audioLoopEl.play()
}
}
this.#audioLoopEl.ontimeupdate = () => {
if (this.#audioLoopEl.currentTime >= this.#audioLoopEl.duration - this.#timeOffset) {
this.#audioLoopEl.currentTime = 0
this.#audioLoopEl.play()
}
}
}
get timeOffset() {
return this.#timeOffset
}
set timeOffset(value) {
this.#timeOffset = value
}
get volume() {
return this.#volume * 100
}
set volume(value) {
value = value / 100
this.#volume = value
this.#audioIntroEl.volume = value
this.#audioLoopEl.volume = value
}
get music() {
return Object.keys(this.#mapping)
}
get useMusic() {
return this.#useMusic
}
get currentMusic() {
return this.#currentMusic
}
/**
* @param {bool} value
*/
set useMusic(value) {
this.#useMusic = value
if (value) {
this.#playMusic()
} else {
this.#stopMusic()
}
}
success() {
this.changeMusic(window.settings.currentBackground)
}
changeMusic(name) {
if (name !== this.#currentMusic) {
this.#currentMusic = name
if (this.#useMusic) {
this.#audioLoopEl.pause()
this.#audioIntroEl.pause()
this.#playMusic()
}
}
}
#playMusic() {
const introOgg = this.#mapping[this.#currentMusic].intro
const intro = `./assets/${this.#folder}/${introOgg}`
const loop = `./assets/${this.#folder}/${this.#mapping[this.#currentMusic].loop}`
this.#audioLoopEl.src = loop
if (introOgg) {
this.#audioIntroEl.src = intro || loop
} else {
this.#audioLoopEl.play()
}
}
#stopMusic() {
this.#audioIntroEl.pause()
this.#audioLoopEl.pause()
}
#insertHTML() {
this.#el.innerHTML = `
<audio id="${this.#audioIntroElId}" preload="auto" autoplay>
<source type="audio/ogg" />
</audio>
<audio id="${this.#audioLoopElId}" preload="auto">
<source type="audio/ogg" />
</audio>
`
}
}