341 lines
9.6 KiB
JavaScript
341 lines
9.6 KiB
JavaScript
class Loader{
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constructor(callback){
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this.callback = callback
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this.loadedAssets = 0
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this.assetsDiv = document.getElementById("assets")
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this.screen = document.getElementById("screen")
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this.startTime = Date.now()
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var promises = []
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promises.push(this.ajax("/src/views/loader.html").then(page => {
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this.screen.innerHTML = page
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}))
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promises.push(this.ajax("/api/config").then(conf => {
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gameConfig = JSON.parse(conf)
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}))
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Promise.all(promises).then(this.run.bind(this))
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}
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run(){
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this.promises = []
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this.loaderDiv = document.querySelector("#loader")
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this.loaderPercentage = document.querySelector("#loader .percentage")
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this.loaderProgress = document.querySelector("#loader .progress")
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var queryString = gameConfig._version.commit_short ? "?" + gameConfig._version.commit_short : ""
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if(gameConfig.custom_js){
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var script = document.createElement("script")
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this.addPromise(pageEvents.load(script))
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script.src = gameConfig.custom_js + queryString
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document.head.appendChild(script)
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}
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assets.js.forEach(name => {
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var script = document.createElement("script")
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this.addPromise(pageEvents.load(script))
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script.src = "/src/js/" + name + queryString
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document.head.appendChild(script)
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})
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this.addPromise(new Promise((resolve, reject) => {
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if(
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versionLink.href !== gameConfig._version.url &&
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gameConfig._version.commit &&
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versionLink.href.indexOf(gameConfig._version.commit) === -1
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){
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// Version in the config does not match version on the page
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reject()
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}
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var cssCount = document.styleSheets.length + assets.css.length
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assets.css.forEach(name => {
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var stylesheet = document.createElement("link")
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stylesheet.rel = "stylesheet"
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stylesheet.href = "/src/css/" + name + queryString
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document.head.appendChild(stylesheet)
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})
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assets.assetsCss.forEach(name => {
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var stylesheet = document.createElement("link")
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stylesheet.rel = "stylesheet"
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stylesheet.href = gameConfig.assets_baseurl + name + queryString
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document.head.appendChild(stylesheet)
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})
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var checkStyles = () => {
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if(document.styleSheets.length >= cssCount){
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resolve()
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clearInterval(interval)
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}
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}
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var interval = setInterval(checkStyles, 100)
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checkStyles()
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}))
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for(var name in assets.fonts){
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this.addPromise(new FontFace(name, "url('" + gameConfig.assets_baseurl + "fonts/" + assets.fonts[name] + "')").load().then(font => {
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document.fonts.add(font)
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}))
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}
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assets.img.forEach(name => {
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var id = this.getFilename(name)
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var image = document.createElement("img")
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this.addPromise(pageEvents.load(image))
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image.id = name
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image.src = gameConfig.assets_baseurl + "img/" + name
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this.assetsDiv.appendChild(image)
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assets.image[id] = image
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})
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assets.views.forEach(name => {
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var id = this.getFilename(name)
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this.addPromise(this.ajax("/src/views/" + name + queryString).then(page => {
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assets.pages[id] = page
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}))
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})
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this.addPromise(this.ajax("/api/songs").then(songs => {
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assets.songsDefault = JSON.parse(songs)
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assets.songs = assets.songsDefault
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}))
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this.addPromise(this.ajax(gameConfig.assets_baseurl + "img/vectors.json" + queryString).then(response => {
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vectors = JSON.parse(response)
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}))
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this.afterJSCount =
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["blurPerformance"].length +
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assets.audioSfx.length +
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assets.audioMusic.length +
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assets.audioSfxLR.length +
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assets.audioSfxLoud.length +
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(gameConfig._accounts ? 1 : 0)
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Promise.all(this.promises).then(() => {
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snd.buffer = new SoundBuffer()
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snd.musicGain = snd.buffer.createGain()
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snd.sfxGain = snd.buffer.createGain()
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snd.previewGain = snd.buffer.createGain()
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snd.sfxGainL = snd.buffer.createGain("left")
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snd.sfxGainR = snd.buffer.createGain("right")
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snd.sfxLoudGain = snd.buffer.createGain()
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snd.buffer.setCrossfade(
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[snd.musicGain, snd.previewGain],
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[snd.sfxGain, snd.sfxGainL, snd.sfxGainR],
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0.5
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)
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snd.sfxLoudGain.setVolume(1.2)
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snd.buffer.saveSettings()
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this.afterJSCount = 0
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assets.audioSfx.forEach(name => {
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this.addPromise(this.loadSound(name, snd.sfxGain))
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})
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assets.audioMusic.forEach(name => {
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this.addPromise(this.loadSound(name, snd.musicGain))
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})
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assets.audioSfxLR.forEach(name => {
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this.addPromise(this.loadSound(name, snd.sfxGain).then(sound => {
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var id = this.getFilename(name)
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assets.sounds[id + "_p1"] = assets.sounds[id].copy(snd.sfxGainL)
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assets.sounds[id + "_p2"] = assets.sounds[id].copy(snd.sfxGainR)
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}))
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})
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assets.audioSfxLoud.forEach(name => {
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this.addPromise(this.loadSound(name, snd.sfxLoudGain))
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})
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this.canvasTest = new CanvasTest()
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this.addPromise(this.canvasTest.blurPerformance().then(result => {
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perf.blur = result
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if(result > 1000 / 50){
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// Less than 50 fps with blur enabled
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disableBlur = true
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}
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}))
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if(gameConfig._accounts){
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var token = Cookies.get("session")
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if(token){
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this.addPromise(this.ajax("/api/scores/get").then(response => {
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response = JSON.parse(response)
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if(response.status === "ok"){
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account.loggedIn = true
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account.username = response.username
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account.displayName = response.display_name
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scoreStorage.load(response.scores)
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pageEvents.send("login", account.username)
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}
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}))
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}else{
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this.assetLoaded()
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}
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}
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settings = new Settings()
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pageEvents.setKbd()
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scoreStorage = new ScoreStorage()
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Promise.all(this.promises).then(() => {
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if(!account.loggedIn){
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scoreStorage.load()
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}
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for(var i in assets.songsDefault){
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var song = assets.songsDefault[i]
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if(!song.hash){
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song.hash = song.title
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}
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scoreStorage.songTitles[song.title] = song.hash
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var score = scoreStorage.get(song.hash, false, true)
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if(score){
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score.title = song.title
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}
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}
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var promises = []
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var readyEvent = "normal"
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var songId
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var hashLower = location.hash.toLowerCase()
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p2 = new P2Connection()
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if(hashLower.startsWith("#song=")){
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var number = parseInt(location.hash.slice(6))
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if(number > 0){
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songId = number
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readyEvent = "song-id"
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}
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}else if(location.hash.length === 6){
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p2.hashLock = true
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promises.push(new Promise(resolve => {
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p2.open()
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pageEvents.add(p2, "message", response => {
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if(response.type === "session"){
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pageEvents.send("session-start", "invited")
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readyEvent = "session-start"
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resolve()
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}else if(response.type === "gameend"){
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p2.hash("")
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p2.hashLock = false
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readyEvent = "session-expired"
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resolve()
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}
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})
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p2.send("invite", {
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id: location.hash.slice(1).toLowerCase(),
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name: account.loggedIn ? account.displayName : null
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})
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setTimeout(() => {
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if(p2.socket.readyState !== 1){
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p2.hash("")
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p2.hashLock = false
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resolve()
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}
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}, 10000)
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}).then(() => {
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pageEvents.remove(p2, "message")
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}))
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}else{
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p2.hash("")
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}
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promises.push(this.canvasTest.drawAllImages())
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Promise.all(promises).then(result => {
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perf.allImg = result
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perf.load = Date.now() - this.startTime
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this.canvasTest.clean()
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this.clean()
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this.callback(songId)
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pageEvents.send("ready", readyEvent)
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})
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}, this.errorMsg.bind(this))
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})
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}
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addPromise(promise){
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this.promises.push(promise)
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promise.then(this.assetLoaded.bind(this), this.errorMsg.bind(this))
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}
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loadSound(name, gain){
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var id = this.getFilename(name)
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return gain.load(gameConfig.assets_baseurl + "audio/" + name).then(sound => {
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assets.sounds[id] = sound
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})
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}
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getFilename(name){
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return name.slice(0, name.lastIndexOf("."))
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}
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errorMsg(error){
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if(Array.isArray(error) && error[1] instanceof HTMLElement){
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error = error[0] + ": " + error[1].outerHTML
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}
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console.error(error)
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pageEvents.send("loader-error", error)
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if(!this.error){
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this.error = true
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this.loaderDiv.classList.add("loaderError")
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if(typeof allStrings === "object"){
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var lang = localStorage.lang
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if(!lang){
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var userLang = navigator.languages.slice()
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userLang.unshift(navigator.language)
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for(var i in userLang){
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for(var j in allStrings){
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if(allStrings[j].regex.test(userLang[i])){
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lang = j
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}
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}
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}
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}
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if(!lang){
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lang = "en"
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}
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var errorOccured = allStrings[lang].errorOccured
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}else{
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var errorOccured = "An error occurred, please refresh"
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}
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this.loaderPercentage.appendChild(document.createElement("br"))
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this.loaderPercentage.appendChild(document.createTextNode(errorOccured))
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this.clean()
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}
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}
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assetLoaded(){
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if(!this.error){
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this.loadedAssets++
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var percentage = Math.floor(this.loadedAssets * 100 / (this.promises.length + this.afterJSCount))
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this.loaderProgress.style.width = percentage + "%"
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this.loaderPercentage.firstChild.data = percentage + "%"
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}
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}
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changePage(name, patternBg){
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this.screen.innerHTML = assets.pages[name]
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this.screen.classList[patternBg ? "add" : "remove"]("pattern-bg")
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}
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ajax(url, customRequest){
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return new Promise((resolve, reject) => {
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var request = new XMLHttpRequest()
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request.open("GET", url)
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pageEvents.load(request).then(() => {
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resolve(request.response)
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}, reject)
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if(customRequest){
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customRequest(request)
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}
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request.send()
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})
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}
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clean(){
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var fontDetectDiv = document.getElementById("fontdetectHelper")
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if(fontDetectDiv){
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fontDetectDiv.parentNode.removeChild(fontDetectDiv)
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}
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delete this.loaderPercentage
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delete this.loaderProgress
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delete this.promises
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pageEvents.remove(root, "touchstart")
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}
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}
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