Bilibili-Evolved/min/danmaku-converter.min.js
2019-02-15 15:52:41 +08:00

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JavaScript
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(()=>{return(t,e)=>{class i{constructor(t,e,i,s,n){this.content=t;this.time=e;this.type=parseInt(i);this.fontSize=parseFloat(s);this.color=parseInt(n)}}class s extends i{constructor({content:t,time:e,type:i,fontSize:s,color:n,timeStamp:r,pool:a,userHash:o,rowId:c}){super(t,e,i,s,n);this.timeStamp=parseInt(r);this.pool=parseInt(a);this.userHash=o;this.rowId=parseInt(c);this.time=parseFloat(this.time);this.pDataArray=[e,i,s,n,r,a,o,c]}text(){const t=this.pDataArray.join(",");return`<d p="${t}">${this.content}</d>`}static parse(t){const e=t.getAttribute("p");const[i,n,r,a,o,c,h,l]=e.split(",");const u=t.innerHTML;return new s({content:u,time:i,type:n,fontSize:r,color:a,timeStamp:o,pool:c,userHash:h,rowId:l})}}class n{constructor(t){this.xml=t;const e=(new DOMParser).parseFromString(t,"application/xml").documentElement;this.danmakus=[...e.querySelectorAll("d[p]")].map(t=>s.parse(t))}}class r extends i{constructor({content:t,time:e,type:i,fontSize:s,color:n,typeTag:r,colorTag:a,endTime:o}){super(t,e,i,s,n);this.typeTag=r;this.colorTag=a;this.endTime=o}text(t){const e=t[this.fontSize].match(/Style:(.*?),/)[1].trim();return`Dialogue: 0,${this.time},${this.endTime},${e},,0,0,0,,{${this.typeTag}${this.colorTag}}${this.content}`}}class a{constructor({danmakus:t,title:e,fontStyles:i,blockTypes:s,resolution:n}){this.danmakus=t;this.title=e;this.fontStyles=i;this.blockTypes=s;this.resolution=n}generateAss(){const t=`\n[Script Info]\n; Script generated by Bilibili Evolved Danmaku Converter\n; https://github.com/the1812/Bilibili-Evolved/\nTitle: ${this.title}\nScriptType: v4.00+\nPlayResX: ${this.resolution.x}\nPlayResY: ${this.resolution.y}\nTimer: 10.0000\nWrapStyle: 2\nScaledBorderAndShadow: no\n\n[V4+ Styles]\nFormat: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding\n${Object.values(this.fontStyles).join("\n")}\n\n[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\n `.trim();return t+"\n"+this.danmakus.map(t=>t.text(this.fontStyles,this.blockTypes)).filter(t=>t!=="").join("\n")}}class o{constructor(t,e,i,s){this.horizontalDanmakus=[];this.horizontalTrack=[];this.verticalDanmakus=[];this.verticalTrack=[];this.resolution=e;this.duration=i;this.canvas=document.createElement("canvas");this.context=this.canvas.getContext("2d");this.fontSizes={25:`52px ${t}`,18:`36px ${t}`};this.danmakuType={1:"normal",2:"normal",3:"normal",4:"bottom",5:"top",6:"reversed",7:"special",8:"special"};this.bottomMarginPercent=s;this.margin=4;this.nextDanmakuDelay=.05;this.generateTracks()}generateTracks(){const t=52;this.danmakuHeight=t;this.trackHeight=this.margin*2+t;this.trackCount=parseInt(fixed(this.resolution.y*(1-this.bottomMarginPercent)/this.trackHeight,0))}getTextSize(t){this.context.font=this.fontSizes[t.fontSize];const e=this.context.measureText(t.content);const i=e.width/2;return[i,this.danmakuHeight/2]}getTags(t,{targetTrack:e,initTrack:i,nextTrack:s,isClosestDanmaku:n,getTrackItem:r,getTag:a}){const[o,c]=this.getTextSize(t);const h=o*2;const l=this.duration(t)*h/(this.resolution.x+h)+this.nextDanmakuDelay;let u=i;let m=null;do{m=e.find(t=>n({it:t,track:u,width:h}));u+=s}while(m&&u<=this.trackCount&&u>=0);if(u>this.trackCount||u<0){return`\\pos(0,-999)`}u-=s;e.push(r({track:u,width:h,visibleTime:l}));return a({track:u,x:o,y:c})}getHorizontalTags(t){return this.getTags(t,{targetTrack:this.horizontalTrack,initTrack:0,nextTrack:1,isClosestDanmaku:({it:e,track:i,width:s})=>{if(e.track!==i){return false}if(e.width<s){return this.duration(t)*this.resolution.x/(this.resolution.x+s)<=e.end-t.time}else{return e.visible>t.time}},getTrackItem:({track:e,width:i,visibleTime:s})=>{return{width:i,start:t.time,visible:t.time+s,end:t.time+this.duration(t),track:e}},getTag:({track:e,x:i,y:s})=>{return`\\move(${this.resolution.x+i},${e*this.trackHeight+this.margin+s},${-i},${e*this.trackHeight+this.margin+s},0,${this.duration(t)*1e3})`}})}getVerticalTags(t){const e=this.danmakuType[t.type]==="top";return this.getTags(t,{targetTrack:this.verticalTrack,initTrack:e?0:this.trackCount-1,nextTrack:e?1:-1,isClosestDanmaku:({it:e,track:i})=>{if(e.track!==i){return false}return e.end>t.time},getTrackItem:({track:e})=>{return{start:t.time,end:t.time+this.duration(t),track:e}},getTag:({track:t,y:i})=>{if(e){return`\\pos(${this.resolution.x/2},${t*this.trackHeight+this.margin+i})`}else{return`\\pos(${this.resolution.x/2},${this.resolution.y-this.margin-i-(this.trackCount-1-t)*this.trackHeight})`}}})}push(t){let e=null;let i=null;switch(this.danmakuType[t.type]){case"normal":case"reversed":{e=this.getHorizontalTags(t);i=this.horizontalDanmakus;break}case"top":case"bottom":{e=this.getVerticalTags(t);i=this.verticalDanmakus;break}case"special":default:{return{tags:`\\pos(0,-999)`}}}const s={tags:e};i.push(s);return s}}class c{constructor({title:t,font:e,alpha:i,duration:s,blockTypes:n,resolution:r,bottomMarginPercent:a,bold:c}){this.title=t;this.font=e;this.alpha=Math.round(i*100).toString(16).toUpperCase();this.duration=s;this.blockTypes=n;this.resolution=r;this.bold=c;this.white=16777215;this.danmakuStack=new o(e,r,s,a)}get fontStyles(){return{25:`Style: Medium,${this.font},52,&H${this.alpha}FFFFFF,&H${this.alpha}FFFFFF,&H${this.alpha}000000,&H${this.alpha}000000,${this.bold?"1":"0"},0,0,0,100,100,0,0,1,1.2,0,5,0,0,0,0`,18:`Style: Small,${this.font},36,&H${this.alpha}FFFFFF,&H${this.alpha}FFFFFF,&H${this.alpha}000000,&H${this.alpha}000000,${this.bold?"1":"0"},0,0,0,100,100,0,0,1,1.2,0,5,0,0,0,0`}}convertToAssDocument(t){const e=new n(t);const i=[];for(const t of e.danmakus.sort((t,e)=>t.time-e.time)){if(this.blockTypes.indexOf(t.type)!==-1||this.blockTypes.indexOf("color")!==-1&&t.color!==this.white){continue}const[e,s]=this.convertTime(t.time,this.duration(t));i.push(new r({content:this.convertText(t.content),time:e,endTime:s,type:t.type,fontSize:t.fontSize,color:t.color,typeTag:this.convertType(t),colorTag:this.convertColor(t.color)}))}return new a({danmakus:i,title:this.title,blockTypes:this.blockTypes,fontStyles:this.fontStyles,resolution:this.resolution})}convertText(t){const e={"{":"","}":"","&amp;":"&","&lt;":"<","&gt;":">","&quot;":'"',"&apos;":"'"};for(const[i,s]of Object.entries(e)){t=t.replace(new RegExp(i,"g"),s)}return t}convertType(t){return this.danmakuStack.push(t).tags}convertColor(t){if(t===this.white){return""}const e=t.toString(16);const i=e.substring(0,2);const s=e.substring(2,4);const n=e.substring(4,6);return`\\c&H${n}${s}${i}&`}convertTime(t,e){function i(t){const[e,i="00"]=String(t).split(".");return`${e.padStart(2,"0")}.${i.substr(0,2).padEnd(2,"0")}`}function s(t){let e=0;let s=0;while(t>=60){t-=60;s++}while(s>=60){s-=60;e++}return`${e}:${String(s).padStart(2,"0")}:${i(t)}`}return[s(t),s(t+e)]}}return{export:{AssDanmaku:r,AssDanmakuDocument:a,Danmaku:i,DanmakuConverter:c,DanmakuStack:o,XmlDanmaku:s,XmlDanmakuDocument:n}}}})();