Add .tja file support
This commit is contained in:
LoveEevee
342
public/src/js/parseosu.js
Normal file
342
public/src/js/parseosu.js
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@@ -0,0 +1,342 @@
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class ParseOsu{
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constructor(fileContent, offset){
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this.osu = {
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OFFSET: 0,
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MSPERBEAT: 1,
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METER: 2,
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SAMPLESET: 3,
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SAMPLEINDEX: 4,
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VOLUME: 5,
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INHERITED: 6,
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KIAIMODE: 7,
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X: 0,
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Y: 1,
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TIME: 2,
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TYPE: 3,
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HITSOUND: 4,
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EXTRAS: 5,
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ENDTIME: 5,
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CIRCLE: 1,
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SLIDER: 2,
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NEWCOMBO: 4,
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SPINNER: 8,
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NORMAL: 1,
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WHISTLE: 2,
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FINISH: 4,
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CLAP: 8,
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CURVEPOINTS: 0,
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REPEAT: 1,
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PIXELLENGTH: 2,
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EDGEHITSOUNDS: 3,
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EDGEADDITIONS: 4
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}
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this.data = []
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for(let line of fileContent){
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line = line.replace(/\/\/.*/, "").trim()
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if(line !== ""){
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this.data.push(line)
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}
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}
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this.offset = (offset || 0) * -1000
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this.soundOffset = 0
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this.beatInfo = {
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beatInterval: 0,
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lastBeatInterval: 0,
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bpm: 0
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}
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this.generalInfo = this.parseGeneralInfo()
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this.metadata = this.parseMetadata()
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this.editor = this.parseEditor()
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this.difficulty = this.parseDifficulty()
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this.timingPoints = this.parseTiming()
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this.circles = this.parseCircles()
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this.measures = this.parseMeasures()
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}
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getStartEndIndexes(type){
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var indexes = {
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start: 0,
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end: 0
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}
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while(indexes.start < this.data.length){
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if(this.data[indexes.start] === "[" + type + "]"){
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break
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}
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indexes.start++
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}
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indexes.start++
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indexes.end = indexes.start
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while(indexes.end < this.data.length){
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if(this.data[indexes.end].match(/^\[\w+\]$/)){
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break
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}
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indexes.end++
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}
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indexes.end--
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return indexes
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}
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parseDifficulty(){
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var difficulty = {
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sliderMultiplier: 0,
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sliderTickRate: 0,
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approachRate: 0
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}
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var indexes = this.getStartEndIndexes("Difficulty")
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for(var i = indexes.start; i <= indexes.end; i++){
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var [item, key] = this.data[i].split(":")
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switch(item){
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case "SliderMultiplier":
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difficulty.sliderMultiplier = key
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difficulty.originalMultiplier = key
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break
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case "SliderTickRate":
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difficulty.sliderTickRate = key
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break
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case "ApproachRate":
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difficulty.approachRate = key
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break
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case "OverallDifficulty":
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difficulty.overallDifficulty = key
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break
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}
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}
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return difficulty
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}
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parseTiming(){
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var timingPoints = []
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var indexes = this.getStartEndIndexes("TimingPoints")
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var lastBeatInterval = parseInt(this.data[indexes.start].split(",")[1])
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for(var i = indexes.start; i<= indexes.end; i++){
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var values = this.data[i].split(",")
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var start = parseInt(values[this.osu.OFFSET])
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var msOrPercent = parseFloat(values[this.osu.MSPERBEAT])
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if(i == indexes.start){
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start = 0
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this.beatInfo.beatInterval = msOrPercent
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this.beatInfo.bpm = Math.floor(1000 / this.beatInfo.beatInterval * 60)
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}
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if(msOrPercent < 0){
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var sliderMultiplier = this.difficulty.lastMultiplier / Math.abs(msOrPercent / 100)
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}else{
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var sliderMultiplier = 1000 / msOrPercent
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if(i == 0){
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this.difficulty.originalMultiplier = sliderMultiplier
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}
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this.difficulty.lastMultiplier = sliderMultiplier
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}
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timingPoints.push({
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start: start + this.offset,
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sliderMultiplier: sliderMultiplier,
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measure: parseInt(values[this.osu.METER]),
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gogoTime: parseInt(values[this.osu.KIAIMODE])
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})
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}
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return timingPoints
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}
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parseMeasures(){
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var measures = []
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var measureNumber = 0
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for(var i = 0; i<this.timingPoints.length; i++){
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if(this.timingPoints[i + 1]){
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var limit = this.timingPoints[i + 1].start - this.offset
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}else{
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var limit = this.circles[this.circles.length - 1].getMS() - this.offset
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}
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for(var start = this.timingPoints[i].start; start <= limit; start += this.beatInfo.beatInterval){
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if(measureNumber === 0){
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measures.push({
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ms: start + this.offset,
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speed: this.timingPoints[i].sliderMultiplier
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})
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}
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measureNumber = (measureNumber + 1) % (this.timingPoints[i].measure + 1)
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}
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}
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return measures
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}
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parseGeneralInfo(){
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var generalInfo = {
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audioFilename: "",
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audioWait: 0
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}
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var indexes = this.getStartEndIndexes("General")
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for(var i = indexes.start; i<= indexes.end; i++){
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var [item, key] = this.data[i].split(":")
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switch(item){
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case "SliderMultiple":
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generalInfo.audioFilename = key
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break
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case "AudioWait":
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generalInfo.audioWait = parseInt(key)
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break
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}
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}
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return generalInfo
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}
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parseMetadata(){
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var metadata = {
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title: "",
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artist: ""
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}
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var indexes = this.getStartEndIndexes("Metadata")
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for(var i = indexes.start; i <= indexes.end; i++){
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var [item, key] = this.data[i].split(":")
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switch(item){
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case "TitleUnicode":
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metadata.title = key
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break
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case "ArtistUnicode":
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metadata.artist = key
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break
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}
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}
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return metadata
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}
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parseEditor(){
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var editor = {
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distanceSpacing: 0,
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beatDivisor: 0,
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gridSize: 0
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}
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var indexes = this.getStartEndIndexes("Editor")
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for(var i = indexes.start; i <= indexes.end; i++){
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var [item, key] = this.data[i].split(":")
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switch(item){
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case "DistanceSpacing":
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editor.distanceSpacing = parseFloat(key)
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break
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case "BeatDivisor":
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editor.beatDivisor = parseInt(key)
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break
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case "GridSize":
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editor.gridSize = parseInt(key)
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break
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}
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}
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return editor
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}
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difficultyRange(difficulty, min, mid, max){
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if(difficulty > 5){
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return mid + (max - mid) * (difficulty - 5) / 5
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}
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if(difficulty < 5){
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return mid - (mid - min) * (5 - difficulty) / 5
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}
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return mid
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}
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parseCircles(){
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var circles = []
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var circleID = 0
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var indexes = this.getStartEndIndexes("HitObjects")
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for(var i = indexes.start; i <= indexes.end; i++){
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circleID++
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var values = this.data[i].split(",")
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var emptyValue = false
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var start = parseInt(values[this.osu.TIME])
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var speed = this.difficulty.originalMultiplier
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var gogoTime = false
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var osuType = parseInt(values[this.osu.TYPE])
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var hitSound = parseInt(values[this.osu.HITSOUND])
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var beatLength = speed
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var lastMultiplier = this.difficulty.lastMultiplier
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if(circleID === 1 && start + this.offset < 0){
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var offset = start + this.offset
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this.soundOffset = offset
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this.offset -= offset
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}
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for(var j = 0; j < this.timingPoints.length; j++){
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if(this.timingPoints[j].start - this.offset > start){
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break
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}
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speed = this.timingPoints[j].sliderMultiplier
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gogoTime = this.timingPoints[j].gogoTime
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}
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if(osuType & this.osu.SPINNER){
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var endTime = parseInt(values[this.osu.ENDTIME])
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var hitMultiplier = this.difficultyRange(this.difficulty.overallDifficulty, 3, 5, 7.5) * 1.65
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var requiredHits = Math.floor(Math.max(1, (endTime - start) / 1000 * hitMultiplier))
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circles.push(new Circle({
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id: circleID,
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start: start + this.offset,
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type: "balloon",
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txt: "ふうせん",
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speed: speed,
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endTime: endTime + this.offset,
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requiredHits: requiredHits,
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gogoTime: gogoTime
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}))
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}else if(osuType & this.osu.SLIDER){
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var extras = values.slice(this.osu.EXTRAS)
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var distance = parseFloat(extras[this.osu.PIXELLENGTH])
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var velocity = this.difficulty.sliderMultiplier * speed / 10
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var endTime = start + distance / velocity
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if(hitSound & this.osu.FINISH){
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type = "daiDrumroll"
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txt = "連打(大)ーっ!!"
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}else{
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type = "drumroll"
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txt = "連打ーっ!!"
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}
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circles.push(new Circle({
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id: circleID,
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start: start + this.offset,
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type: type,
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txt: txt,
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speed: speed,
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endTime: endTime + this.offset,
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gogoTime: gogoTime
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}))
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}else if(osuType & this.osu.CIRCLE){
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var type
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var txt
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if(hitSound & this.osu.FINISH){
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if(hitSound & this.osu.WHISTLE || hitSound & this.osu.CLAP){
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type = "daiKa"
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txt = "カッ(大)"
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}else if(hitSound & this.osu.NORMAL || hitSound === this.osu.FINISH){
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type = "daiDon"
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txt = "ドン(大)"
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}else{
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emptyValue = true
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}
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}else if(hitSound & this.osu.WHISTLE || hitSound & this.osu.CLAP){
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type = "ka"
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txt = "カッ"
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}else if(hitSound & this.osu.NORMAL || hitSound === 0){
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type = "don"
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txt = "ドン"
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}else{
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emptyValue = true
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}
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if(!emptyValue){
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circles.push(new Circle({
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id: circleID,
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start: start + this.offset,
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type: type,
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txt: txt,
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speed: speed,
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gogoTime: gogoTime
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}))
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}
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}else{
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emptyValue = true
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}
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if(emptyValue){
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console.warn("Unknown note type found on line " + (i + 1) + ": " + this.data[i])
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}
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}
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return circles
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}
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}
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