class LoadSong{ constructor(selectedSong, autoPlayEnabled, multiplayer, touchEnabled){ this.selectedSong = selectedSong this.autoPlayEnabled = autoPlayEnabled this.multiplayer = multiplayer this.touchEnabled = touchEnabled var resolution = settings.getItem("resolution") this.imgScale = 1 if(resolution === "medium"){ this.imgScale = 0.75 }else if(resolution === "low"){ this.imgScale = 0.5 }else if(resolution === "lowest"){ this.imgScale = 0.25 } loader.changePage("loadsong", true) var loadingText = document.getElementById("loading-text") loadingText.appendChild(document.createTextNode(strings.loading)) loadingText.setAttribute("alt", strings.loading) if(multiplayer){ var cancel = document.getElementById("p2-cancel-button") cancel.appendChild(document.createTextNode(strings.cancel)) cancel.setAttribute("alt", strings.cancel) } this.run() pageEvents.send("load-song", { selectedSong: selectedSong, autoPlayEnabled: autoPlayEnabled, multiplayer: multiplayer, touchEnabled: touchEnabled }) } run(){ var song = this.selectedSong var id = song.folder var promises = [] if(song.folder !== "calibration"){ assets.sounds["v_start"].play() var songObj = assets.songs.find(song => song.id === id) }else{ var songObj = { "music": "muted", "chart": "blank" } } song.songBg = this.randInt(1, 5) song.songStage = this.randInt(1, 3) song.donBg = this.randInt(1, 6) if(song.songSkin && song.songSkin.name){ var imgLoad = [] for(var type in song.songSkin){ var value = song.songSkin[type] if(["song", "stage", "don"].indexOf(type) !== -1 && value && value !== "none"){ var filename = "bg_" + type + "_" + song.songSkin.name if(value === "static"){ imgLoad.push({ filename: filename, type: type }) }else{ imgLoad.push({ filename: filename + "_a", type: type }) imgLoad.push({ filename: filename + "_b", type: type }) } if(type === "don"){ song.donBg = null }else if(type === "song"){ song.songBg = null }else if(type === "stage"){ song.songStage = null } } } var skinBase = gameConfig.assets_baseurl + "song_skins/" for(var i = 0; i < imgLoad.length; i++){ let filename = imgLoad[i].filename let prefix = song.songSkin.prefix || "" if((prefix + filename) in assets.image){ continue } let img = document.createElement("img") let force = imgLoad[i].type === "song" && this.touchEnabled if(!songObj.music && (this.imgScale !== 1 || force)){ img.crossOrigin = "Anonymous" } let promise = pageEvents.load(img) promises.push(promise.then(() => { return this.scaleImg(img, filename, prefix, force) })) if(songObj.music){ img.src = URL.createObjectURL(song.songSkin[filename + ".png"]) }else{ img.src = skinBase + filename + ".png" } } } promises.push(this.loadSongBg(id)) promises.push(new Promise((resolve, reject) => { if(songObj.sound){ songObj.sound.gain = snd.musicGain resolve() }else if(!songObj.music){ snd.musicGain.load(gameConfig.songs_baseurl + id + "/main.mp3").then(sound => { songObj.sound = sound resolve() }, reject) }else if(songObj.music !== "muted"){ snd.musicGain.load(songObj.music, true).then(sound => { songObj.sound = sound resolve() }, reject) }else{ resolve() } })) if(songObj.chart){ if(songObj.chart === "blank"){ this.songData = "" }else{ var reader = new FileReader() promises.push(pageEvents.load(reader).then(event => { this.songData = event.target.result.replace(/\0/g, "").split("\n") })) if(song.type === "tja"){ reader.readAsText(songObj.chart, "sjis") }else{ reader.readAsText(songObj.chart) } } }else{ promises.push(loader.ajax(this.getSongPath(song)).then(data => { this.songData = data.replace(/\0/g, "").split("\n") })) } if(this.touchEnabled && !assets.image["touch_drum"]){ let img = document.createElement("img") if(this.imgScale !== 1){ img.crossOrigin = "Anonymous" } promises.push(pageEvents.load(img).then(() => { return this.scaleImg(img, "touch_drum", "") })) img.src = gameConfig.assets_baseurl + "img/touch_drum.png" } Promise.all(promises).then(() => { this.setupMultiplayer() }, error => { if(Array.isArray(error) && error[1] instanceof HTMLElement){ error = error[0] + ": " + error[1].outerHTML } console.error(error) pageEvents.send("load-song-error", error) errorMessage(new Error(error).stack) alert(strings.errorOccured) }) } loadSongBg(){ return new Promise((resolve, reject) => { var promises = [] var filenames = [] if(this.selectedSong.songBg !== null){ filenames.push("bg_song_" + this.selectedSong.songBg) } if(this.selectedSong.donBg !== null){ filenames.push("bg_don_" + this.selectedSong.donBg) if(this.multiplayer){ filenames.push("bg_don2_" + this.selectedSong.donBg) } } if(this.selectedSong.songStage !== null){ filenames.push("bg_stage_" + this.selectedSong.songStage) } for(var i = 0; i < filenames.length; i++){ var filename = filenames[i] var stage = filename.startsWith("bg_stage_") for(var letter = 0; letter < (stage ? 1 : 2); letter++){ let filenameAb = filenames[i] + (stage ? "" : (letter === 0 ? "a" : "b")) if(!(filenameAb in assets.image)){ let img = document.createElement("img") let force = filenameAb.startsWith("bg_song_") && this.touchEnabled if(this.imgScale !== 1 || force){ img.crossOrigin = "Anonymous" } promises.push(pageEvents.load(img).then(() => { return this.scaleImg(img, filenameAb, "", force) })) img.src = gameConfig.assets_baseurl + "img/" + filenameAb + ".png" } } } Promise.all(promises).then(resolve, reject) }) } scaleImg(img, filename, prefix, force){ return new Promise((resolve, reject) => { var scale = this.imgScale if(force && scale > 0.5){ scale = 0.5 } if(scale !== 1){ var canvas = document.createElement("canvas") var w = Math.floor(img.width * scale) var h = Math.floor(img.height * scale) canvas.width = w canvas.height = h var ctx = canvas.getContext("2d") ctx.drawImage(img, 0, 0, w, h) var saveScaled = url => { let img2 = document.createElement("img") pageEvents.load(img2).then(() => { assets.image[prefix + filename] = img2 resolve() }, reject) img2.src = url } if("toBlob" in canvas){ canvas.toBlob(blob => { saveScaled(URL.createObjectURL(blob)) }) }else{ saveScaled(canvas.toDataURL()) } }else{ assets.image[prefix + filename] = img resolve() } }) } randInt(min, max){ return Math.floor(Math.random() * (max - min + 1)) + min } getSongPath(selectedSong){ var directory = gameConfig.songs_baseurl + selectedSong.folder + "/" if(selectedSong.type === "tja"){ return directory + "main.tja" }else{ return directory + selectedSong.difficulty + ".osu" } } setupMultiplayer(){ var song = this.selectedSong if(this.multiplayer){ var loadingText = document.getElementsByClassName("loading-text")[0] loadingText.firstChild.data = strings.waitingForP2 loadingText.setAttribute("alt", strings.waitingForP2) this.cancelButton = document.getElementById("p2-cancel-button") this.cancelButton.style.display = "inline-block" pageEvents.add(this.cancelButton, ["mousedown", "touchstart"], this.cancelLoad.bind(this)) this.song2Data = this.songData this.selectedSong2 = song pageEvents.add(p2, "message", event => { if(event.type === "gameload"){ this.cancelButton.style.display = "" if(event.value === song.difficulty){ this.startMultiplayer() }else{ this.selectedSong2 = {} for(var i in this.selectedSong){ this.selectedSong2[i] = this.selectedSong[i] } this.selectedSong2.difficulty = event.value if(song.type === "tja"){ this.startMultiplayer() }else{ loader.ajax(this.getSongPath(this.selectedSong2)).then(data => { this.song2Data = data.replace(/\0/g, "").split("\n") this.startMultiplayer() }, () => { this.startMultiplayer() }) } } }else if(event.type === "gamestart"){ this.clean() p2.clearMessage("songsel") var taikoGame1 = new Controller(song, this.songData, false, 1, this.touchEnabled) var taikoGame2 = new Controller(this.selectedSong2, this.song2Data, true, 2, this.touchEnabled) taikoGame1.run(taikoGame2) pageEvents.send("load-song-player2", this.selectedSong2) }else if(event.type === "left" || event.type === "gameend"){ this.clean() new SongSelect(false, false, this.touchEnabled) } }) p2.send("join", { id: song.folder, diff: song.difficulty }) }else{ this.clean() var taikoGame = new Controller(song, this.songData, this.autoPlayEnabled, false, this.touchEnabled) taikoGame.run() } } startMultiplayer(repeat){ if(document.hasFocus()){ p2.send("gamestart") }else{ if(!repeat){ assets.sounds["v_sanka"].play() pageEvents.send("load-song-unfocused") } setTimeout(() => { this.startMultiplayer(true) }, 100) } } cancelLoad(event){ if(event.type === "mousedown"){ if(event.which !== 1){ return } }else{ event.preventDefault() } p2.send("leave") assets.sounds["se_don"].play() this.cancelButton.style.pointerEvents = "none" pageEvents.send("load-song-cancel") } clean(){ pageEvents.remove(p2, "message") if(this.cancelButton){ pageEvents.remove(this.cancelButton, ["mousedown", "touchstart"]) delete this.cancelButton } } }