@needle-tools/engine/dist/vendor-DZ45lcA8.min.js

Needle Engine is a web-based runtime for 3D apps. It runs on your machine for development with great integrations into editors like Unity or Blender - and can be deployed onto any device! It is flexible, extensible and networking and XR are built-in.

import{PlaneGeometry as na,ShaderChunk as eu,Object3D as ia,Layers as cr,MeshBasicMaterial as ra,DoubleSide as Ss,AdditiveBlending as sa,InstancedBufferAttribute as fn,DynamicDrawUsage as et,InstancedBufferGeometry as tu,Uniform$1 as Et,ShaderMaterial as bs,BufferGeometry as ti,BufferAttribute as dt,Mesh as lr,MeshStandardMaterial as nu,MeshPhysicalMaterial as iu,Triangle as mn,Vector3 as q,Box3 as zt,Matrix4 as kt,Line3 as qt,Plane as oa,Vector2 as nn,BackSide as ru,REVISION as aa,Ray as su,FrontSide as ca,LineSegments as la,LineLoop as ua,Line as ha,Points as da,Sphere as ou,BatchedMesh as au,Matrix3 as cu,Vector4 as xs,SkinnedMesh as lu,InterpolateDiscrete as uu,InterpolateLinear as pa,AnimationClip as hu,QuaternionKeyframeTrack as du,ColorKeyframeTrack as pu,VectorKeyframeTrack as fu,BooleanKeyframeTrack as mu,NumberKeyframeTrack as yu,PropertyBinding as fa}from"./three.min.js";const Ie={ComponentState:Object.freeze({DEFAULT:"default",TOUCHED:"touched",PRESSED:"pressed"}),ComponentProperty:Object.freeze({BUTTON:"button",X_AXIS:"xAxis",Y_AXIS:"yAxis",STATE:"state"}),ButtonTouchThreshold:.05,AxisTouchThreshold:.1,VisualResponseProperty:Object.freeze({TRANSFORM:"transform",VISIBILITY:"visibility"})};async function ma(r){const e=await fetch(r);if(e.ok)return e.json();throw new Error(e.statusText)}async function gu(r){return await ma(`${r}/profilesList.json`)}async function vu(r,e,t=null,n=!0){if(!r)throw new Error("No xrInputSource supplied");const i=await gu(e);let s;if(r.profiles.some(c=>{const l=i[c];return l&&(s={profileId:c,profilePath:`${e}/${l.path}`,deprecated:!!l.deprecated}),!!s}),!s){if(!t)throw new Error("No matching profile name found");const c=i[t];if(!c)throw new Error(`No matching profile name found and default profile "${t}" missing.`);s={profileId:t,profilePath:`${e}/${c.path}`,deprecated:!!c.deprecated}}const a=await ma(s.profilePath);let o;if(n){let c;if(r.handedness==="any"?c=a.layouts[Object.keys(a.layouts)[0]]:c=a.layouts[r.handedness],!c)throw new Error(`No matching handedness, ${r.handedness}, in profile ${s.profileId}`);c.assetPath&&(o=s.profilePath.replace("profile.json",c.assetPath))}return{profile:a,assetPath:o}}const Su={xAxis:0,yAxis:0,button:0,state:Ie.ComponentState.DEFAULT};function bu(r=0,e=0){let t=r,n=e;if(Math.sqrt(r*r+e*e)>1){const i=Math.atan2(e,r);t=Math.cos(i),n=Math.sin(i)}return{normalizedXAxis:t*.5+.5,normalizedYAxis:n*.5+.5}}class xu{constructor(e){this.componentProperty=e.componentProperty,this.states=e.states,this.valueNodeName=e.valueNodeName,this.valueNodeProperty=e.valueNodeProperty,this.valueNodeProperty===Ie.VisualResponseProperty.TRANSFORM&&(this.minNodeName=e.minNodeName,this.maxNodeName=e.maxNodeName),this.value=0,this.updateFromComponent(Su)}updateFromComponent({xAxis:e,yAxis:t,button:n,state:i}){const{normalizedXAxis:s,normalizedYAxis:a}=bu(e,t);switch(this.componentProperty){case Ie.ComponentProperty.X_AXIS:this.value=this.states.includes(i)?s:.5;break;case Ie.ComponentProperty.Y_AXIS:this.value=this.states.includes(i)?a:.5;break;case Ie.ComponentProperty.BUTTON:this.value=this.states.includes(i)?n:0;break;case Ie.ComponentProperty.STATE:this.valueNodeProperty===Ie.VisualResponseProperty.VISIBILITY?this.value=this.states.includes(i):this.value=this.states.includes(i)?1:0;break;default:throw new Error(`Unexpected visualResponse componentProperty ${this.componentProperty}`)}}}class wu{constructor(e,t){if(!e||!t||!t.visualResponses||!t.gamepadIndices||Object.keys(t.gamepadIndices).length===0)throw new Error("Invalid arguments supplied");this.id=e,this.type=t.type,this.rootNodeName=t.rootNodeName,this.touchPointNodeName=t.touchPointNodeName,this.visualResponses={},Object.keys(t.visualResponses).forEach(n=>{const i=new xu(t.visualResponses[n]);this.visualResponses[n]=i}),this.gamepadIndices=Object.assign({},t.gamepadIndices),this.values={state:Ie.ComponentState.DEFAULT,button:this.gamepadIndices.button!==void 0?0:void 0,xAxis:this.gamepadIndices.xAxis!==void 0?0:void 0,yAxis:this.gamepadIndices.yAxis!==void 0?0:void 0}}get data(){return{id:this.id,...this.values}}updateFromGamepad(e){if(this.values.state=Ie.ComponentState.DEFAULT,this.gamepadIndices.button!==void 0&&e.buttons.length>this.gamepadIndices.button){const t=e.buttons[this.gamepadIndices.button];this.values.button=t.value,this.values.button=this.values.button<0?0:this.values.button,this.values.button=this.values.button>1?1:this.values.button,t.pressed||this.values.button===1?this.values.state=Ie.ComponentState.PRESSED:(t.touched||this.values.button>Ie.ButtonTouchThreshold)&&(this.values.state=Ie.ComponentState.TOUCHED)}this.gamepadIndices.xAxis!==void 0&&e.axes.length>this.gamepadIndices.xAxis&&(this.values.xAxis=e.axes[this.gamepadIndices.xAxis],this.values.xAxis=this.values.xAxis<-1?-1:this.values.xAxis,this.values.xAxis=this.values.xAxis>1?1:this.values.xAxis,this.values.state===Ie.ComponentState.DEFAULT&&Math.abs(this.values.xAxis)>Ie.AxisTouchThreshold&&(this.values.state=Ie.ComponentState.TOUCHED)),this.gamepadIndices.yAxis!==void 0&&e.axes.length>this.gamepadIndices.yAxis&&(this.values.yAxis=e.axes[this.gamepadIndices.yAxis],this.values.yAxis=this.values.yAxis<-1?-1:this.values.yAxis,this.values.yAxis=this.values.yAxis>1?1:this.values.yAxis,this.values.state===Ie.ComponentState.DEFAULT&&Math.abs(this.values.yAxis)>Ie.AxisTouchThreshold&&(this.values.state=Ie.ComponentState.TOUCHED)),Object.values(this.visualResponses).forEach(t=>{t.updateFromComponent(this.values)})}}class _u{constructor(e,t,n){if(!e)throw new Error("No xrInputSource supplied");if(!t)throw new Error("No profile supplied");this.xrInputSource=e,this.assetUrl=n,this.id=t.profileId,this.layoutDescription=t.layouts[e.handedness],this.components={},Object.keys(this.layoutDescription.components).forEach(i=>{const s=this.layoutDescription.components[i];this.components[i]=new wu(i,s)}),this.updateFromGamepad()}get gripSpace(){return this.xrInputSource.gripSpace}get targetRaySpace(){return this.xrInputSource.targetRaySpace}get data(){const e=[];return Object.values(this.components).forEach(t=>{e.push(t.data)}),e}updateFromGamepad(){Object.values(this.components).forEach(e=>{e.updateFromGamepad(this.xrInputSource.gamepad)})}}const ws=2,Nt=4,Xt=4,ya=4,rn=new Int32Array(2),ga=new Float32Array(rn.buffer),va=new Float64Array(rn.buffer),ur=new Uint16Array(new Uint8Array([1,0]).buffer)[0]===1;class en{constructor(e,t){this.low=e|0,this.high=t|0}static create(e,t){return e==0&&t==0?en.ZERO:new en(e,t)}toFloat64(){return(this.low>>>0)+this.high*4294967296}equals(e){return 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rn[ur?0:1]=this.readInt32(e),rn[ur?1:0]=this.readInt32(e+4),va[0]}writeInt8(e,t){this.bytes_[e]=t}writeUint8(e,t){this.bytes_[e]=t}writeInt16(e,t){this.bytes_[e]=t,this.bytes_[e+1]=t>>8}writeUint16(e,t){this.bytes_[e]=t,this.bytes_[e+1]=t>>8}writeInt32(e,t){this.bytes_[e]=t,this.bytes_[e+1]=t>>8,this.bytes_[e+2]=t>>16,this.bytes_[e+3]=t>>24}writeUint32(e,t){this.bytes_[e]=t,this.bytes_[e+1]=t>>8,this.bytes_[e+2]=t>>16,this.bytes_[e+3]=t>>24}writeInt64(e,t){this.writeInt32(e,t.low),this.writeInt32(e+4,t.high)}writeUint64(e,t){this.writeUint32(e,t.low),this.writeUint32(e+4,t.high)}writeFloat32(e,t){ga[0]=t,this.writeInt32(e,rn[0])}writeFloat64(e,t){va[0]=t,this.writeInt32(e,rn[ur?0:1]),this.writeInt32(e+4,rn[ur?1:0])}getBufferIdentifier(){if(this.bytes_.length<this.position_+Nt+Xt)throw new Error("FlatBuffers: ByteBuffer is too short to contain an identifier.");let e="";for(let t=0;t<Xt;t++)e+=String.fromCharCode(this.readInt8(this.position_+Nt+t));return e}__offset(e,t){const n=e-this.readInt32(e);return t<this.readInt16(n)?this.readInt16(n+t):0}__union(e,t){return e.bb_pos=t+this.readInt32(t),e.bb=this,e}__string(e,t){e+=this.readInt32(e);const n=this.readInt32(e);let i="",s=0;if(e+=Nt,t===_s.UTF8_BYTES)return this.bytes_.subarray(e,e+n);for(;s<n;){let a;const o=this.readUint8(e+s++);if(o<192)a=o;else{const c=this.readUint8(e+s++);if(o<224)a=(o&31)<<6|c&63;else{const l=this.readUint8(e+s++);if(o<240)a=(o&15)<<12|(c&63)<<6|l&63;else{const u=this.readUint8(e+s++);a=(o&7)<<18|(c&63)<<12|(l&63)<<6|u&63}}}a<65536?i+=String.fromCharCode(a):(a-=65536,i+=String.fromCharCode((a>>10)+55296,(a&1023)+56320))}return i}__union_with_string(e,t){return typeof e=="string"?this.__string(t):this.__union(e,t)}__indirect(e){return e+this.readInt32(e)}__vector(e){return e+this.readInt32(e)+Nt}__vector_len(e){return this.readInt32(e+this.readInt32(e))}__has_identifier(e){if(e.length!=Xt)throw new Error("FlatBuffers: file identifier must be length "+Xt);for(let t=0;t<Xt;t++)if(e.charCodeAt(t)!=this.readInt8(this.position()+Nt+t))return!1;return!0}createLong(e,t){return en.create(e,t)}createScalarList(e,t){const n=[];for(let i=0;i<t;++i)e(i)!==null&&n.push(e(i));return n}createObjList(e,t){const n=[];for(let i=0;i<t;++i){const s=e(i);s!==null&&n.push(s.unpack())}return n}}class Ao{constructor(e){this.minalign=1,this.vtable=null,this.vtable_in_use=0,this.isNested=!1,this.object_start=0,this.vtables=[],this.vector_num_elems=0,this.force_defaults=!1,this.string_maps=null;let t;e?t=e:t=1024,this.bb=Ti.allocate(t),this.space=t}clear(){this.bb.clear(),this.space=this.bb.capacity(),this.minalign=1,this.vtable=null,this.vtable_in_use=0,this.isNested=!1,this.object_start=0,this.vtables=[],this.vector_num_elems=0,this.force_defaults=!1,this.string_maps=null}forceDefaults(e){this.force_defaults=e}dataBuffer(){return this.bb}asUint8Array(){return 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t=r.RTCPeerConnection.prototype.getSenders;t&&(r.RTCPeerConnection.prototype.getSenders=function(){const i=t.apply(this,[]);return i.forEach(s=>s._pc=this),i});const n=r.RTCPeerConnection.prototype.addTrack;n&&(r.RTCPeerConnection.prototype.addTrack=function(){const i=n.apply(this,arguments);return i._pc=this,i}),r.RTCRtpSender.prototype.getStats=function(){const i=this;return this._pc.getStats().then(s=>Ea(s,i.track,!0))}}if(!("getStats"in r.RTCRtpReceiver.prototype)){const t=r.RTCPeerConnection.prototype.getReceivers;t&&(r.RTCPeerConnection.prototype.getReceivers=function(){const n=t.apply(this,[]);return n.forEach(i=>i._pc=this),n}),Bn(r,"track",n=>(n.receiver._pc=n.srcElement,n)),r.RTCRtpReceiver.prototype.getStats=function(){const n=this;return this._pc.getStats().then(i=>Ea(i,n.track,!1))}}if(!("getStats"in r.RTCRtpSender.prototype&&"getStats"in r.RTCRtpReceiver.prototype))return;const e=r.RTCPeerConnection.prototype.getStats;r.RTCPeerConnection.prototype.getStats=function(){if(arguments.length>0&&arguments[0]instanceof r.MediaStreamTrack){const t=arguments[0];let n,i,s;return this.getSenders().forEach(a=>{a.track===t&&(n?s=!0:n=a)}),this.getReceivers().forEach(a=>(a.track===t&&(i?s=!0:i=a),a.track===t)),s||n&&i?Promise.reject(new DOMException("There are more than one sender or receiver for the track.","InvalidAccessError")):n?n.getStats():i?i.getStats():Promise.reject(new DOMException("There is no sender or receiver for the track.","InvalidAccessError"))}return e.apply(this,arguments)}}function Na(r){r.RTCPeerConnection.prototype.getLocalStreams=function(){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},Object.keys(this._shimmedLocalStreams).map(s=>this._shimmedLocalStreams[s][0])};const e=r.RTCPeerConnection.prototype.addTrack;r.RTCPeerConnection.prototype.addTrack=function(s,a){if(!a)return e.apply(this,arguments);this._shimmedLocalStreams=this._shimmedLocalStreams||{};const o=e.apply(this,arguments);return this._shimmedLocalStreams[a.id]?this._shimmedLocalStreams[a.id].indexOf(o)===-1&&this._shimmedLocalStreams[a.id].push(o):this._shimmedLocalStreams[a.id]=[a,o],o};const t=r.RTCPeerConnection.prototype.addStream;r.RTCPeerConnection.prototype.addStream=function(s){this._shimmedLocalStreams=this._shimmedLocalStreams||{},s.getTracks().forEach(c=>{if(this.getSenders().find(l=>l.track===c))throw new DOMException("Track already exists.","InvalidAccessError")});const a=this.getSenders();t.apply(this,arguments);const o=this.getSenders().filter(c=>a.indexOf(c)===-1);this._shimmedLocalStreams[s.id]=[s].concat(o)};const n=r.RTCPeerConnection.prototype.removeStream;r.RTCPeerConnection.prototype.removeStream=function(s){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},delete this._shimmedLocalStreams[s.id],n.apply(this,arguments)};const i=r.RTCPeerConnection.prototype.removeTrack;r.RTCPeerConnection.prototype.removeTrack=function(s){return this._shimmedLocalStreams=this._shimmedLocalStreams||{},s&&Object.keys(this._shimmedLocalStreams).forEach(a=>{const o=this._shimmedLocalStreams[a].indexOf(s);o!==-1&&this._shimmedLocalStreams[a].splice(o,1),this._shimmedLocalStreams[a].length===1&&delete this._shimmedLocalStreams[a]}),i.apply(this,arguments)}}function Ua(r,e){if(!r.RTCPeerConnection)return;if(r.RTCPeerConnection.prototype.addTrack&&e.version>=65)return Na(r);const t=r.RTCPeerConnection.prototype.getLocalStreams;r.RTCPeerConnection.prototype.getLocalStreams=function(){const l=t.apply(this);return this._reverseStreams=this._reverseStreams||{},l.map(u=>this._reverseStreams[u.id])};const n=r.RTCPeerConnection.prototype.addStream;r.RTCPeerConnection.prototype.addStream=function(l){if(this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},l.getTracks().forEach(u=>{if(this.getSenders().find(d=>d.track===u))throw new DOMException("Track already exists.","InvalidAccessError")}),!this._reverseStreams[l.id]){const u=new r.MediaStream(l.getTracks());this._streams[l.id]=u,this._reverseStreams[u.id]=l,l=u}n.apply(this,[l])};const i=r.RTCPeerConnection.prototype.removeStream;r.RTCPeerConnection.prototype.removeStream=function(l){this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{},i.apply(this,[this._streams[l.id]||l]),delete this._reverseStreams[this._streams[l.id]?this._streams[l.id].id:l.id],delete this._streams[l.id]},r.RTCPeerConnection.prototype.addTrack=function(l,u){if(this.signalingState==="closed")throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");const d=[].slice.call(arguments,1);if(d.length!==1||!d[0].getTracks().find(m=>m===l))throw new DOMException("The adapter.js addTrack polyfill only supports a single  stream which is associated with the specified track.","NotSupportedError");if(this.getSenders().find(m=>m.track===l))throw new DOMException("Track already exists.","InvalidAccessError");this._streams=this._streams||{},this._reverseStreams=this._reverseStreams||{};const f=this._streams[u.id];if(f)f.addTrack(l),Promise.resolve().then(()=>{this.dispatchEvent(new Event("negotiationneeded"))});else{const m=new r.MediaStream([l]);this._streams[u.id]=m,this._reverseStreams[m.id]=u,this.addStream(m)}return this.getSenders().find(m=>m.track===l)};function s(l,u){let d=u.sdp;return Object.keys(l._reverseStreams||[]).forEach(f=>{const m=l._reverseStreams[f],x=l._streams[m.id];d=d.replace(new RegExp(x.id,"g"),m.id)}),new RTCSessionDescription({type:u.type,sdp:d})}function a(l,u){let d=u.sdp;return Object.keys(l._reverseStreams||[]).forEach(f=>{const m=l._reverseStreams[f],x=l._streams[m.id];d=d.replace(new RegExp(m.id,"g"),x.id)}),new RTCSessionDescription({type:u.type,sdp:d})}["createOffer","createAnswer"].forEach(function(l){const u=r.RTCPeerConnection.prototype[l],d={[l](){const f=arguments;return arguments.length&&typeof arguments[0]=="function"?u.apply(this,[m=>{const x=s(this,m);f[0].apply(null,[x])},m=>{f[1]&&f[1].apply(null,m)},arguments[2]]):u.apply(this,arguments).then(m=>s(this,m))}};r.RTCPeerConnection.prototype[l]=d[l]});const o=r.RTCPeerConnection.prototype.setLocalDescription;r.RTCPeerConnection.prototype.setLocalDescription=function(){return!arguments.length||!arguments[0].type?o.apply(this,arguments):(arguments[0]=a(this,arguments[0]),o.apply(this,arguments))};const c=Object.getOwnPropertyDescriptor(r.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(r.RTCPeerConnection.prototype,"localDescription",{get(){const l=c.get.apply(this);return l.type===""?l:s(this,l)}}),r.RTCPeerConnection.prototype.removeTrack=function(l){if(this.signalingState==="closed")throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");if(!l._pc)throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.","TypeError");if(l._pc!==this)throw new DOMException("Sender was not created by this connection.","InvalidAccessError");this._streams=this._streams||{};let u;Object.keys(this._streams).forEach(d=>{this._streams[d].getTracks().find(f=>l.track===f)&&(u=this._streams[d])}),u&&(u.getTracks().length===1?this.removeStream(this._reverseStreams[u.id]):u.removeTrack(l.track),this.dispatchEvent(new Event("negotiationneeded")))}}function Ps(r,e){!r.RTCPeerConnection&&r.webkitRTCPeerConnection&&(r.RTCPeerConnection=r.webkitRTCPeerConnection),r.RTCPeerConnection&&e.version<53&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){const n=r.RTCPeerConnection.prototype[t],i={[t](){return arguments[0]=new(t==="addIceCandidate"?r.RTCIceCandidate:r.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)}};r.RTCPeerConnection.prototype[t]=i[t]})}function Da(r,e){Bn(r,"negotiationneeded",t=>{const n=t.target;if(!((e.version<72||n.getConfiguration&&n.getConfiguration().sdpSemantics==="plan-b")&&n.signalingState!=="stable"))return t})}const La=Object.freeze(Object.defineProperty({__proto__:null,fixNegotiationNeeded:Da,shimAddTrackRemoveTrack:Ua,shimAddTrackRemoveTrackWithNative:Na,shimGetDisplayMedia:ku,shimGetSendersWithDtmf:Ia,shimGetStats:Ba,shimGetUserMedia:Ra,shimMediaStream:Aa,shimOnTrack:Oa,shimPeerConnection:Ps,shimSenderReceiverGetStats:za},Symbol.toStringTag,{value:"Module"}));function Ru(r,e){let t=!1;return r=JSON.parse(JSON.stringify(r)),r.filter(n=>{if(n&&(n.urls||n.url)){let i=n.urls||n.url;n.url&&!n.urls&&dr("RTCIceServer.url","RTCIceServer.urls");const s=typeof i=="string";return s&&(i=[i]),i=i.filter(a=>{if(a.indexOf("stun:")===0)return!1;const o=a.startsWith("turn")&&!a.startsWith("turn:[")&&a.includes("transport=udp");return o&&!t?(t=!0,!0):o&&!t}),delete n.url,n.urls=s?i[0]:i,!!i.length}})}var Fa={exports:{}},Va;function ja(){return Va||(Va=1,function(r){var e={};e.generateIdentifier=function(){return Math.random().toString(36).substr(2,10)},e.localCName=e.generateIdentifier(),e.splitLines=function(t){return t.trim().split(`
`).map(function(n){return n.trim()})},e.splitSections=function(t){var n=t.split(`
m=`);return n.map(function(i,s){return(s>0?"m="+i:i).trim()+`\r
`})},e.getDescription=function(t){var n=e.splitSections(t);return n&&n[0]},e.getMediaSections=function(t){var n=e.splitSections(t);return n.shift(),n},e.matchPrefix=function(t,n){return e.splitLines(t).filter(function(i){return i.indexOf(n)===0})},e.parseCandidate=function(t){var n;t.indexOf("a=candidate:")===0?n=t.substring(12).split(" "):n=t.substring(10).split(" ");for(var i={foundation:n[0],component:parseInt(n[1],10),protocol:n[2].toLowerCase(),priority:parseInt(n[3],10),ip:n[4],address:n[4],port:parseInt(n[5],10),type:n[7]},s=8;s<n.length;s+=2)switch(n[s]){case"raddr":i.relatedAddress=n[s+1];break;case"rport":i.relatedPort=parseInt(n[s+1],10);break;case"tcptype":i.tcpType=n[s+1];break;case"ufrag":i.ufrag=n[s+1],i.usernameFragment=n[s+1];break;default:i[n[s]]=n[s+1];break}return i},e.writeCandidate=function(t){var n=[];n.push(t.foundation),n.push(t.component),n.push(t.protocol.toUpperCase()),n.push(t.priority),n.push(t.address||t.ip),n.push(t.port);var i=t.type;return n.push("typ"),n.push(i),i!=="host"&&t.relatedAddress&&t.relatedPort&&(n.push("raddr"),n.push(t.relatedAddress),n.push("rport"),n.push(t.relatedPort)),t.tcpType&&t.protocol.toLowerCase()==="tcp"&&(n.push("tcptype"),n.push(t.tcpType)),(t.usernameFragment||t.ufrag)&&(n.push("ufrag"),n.push(t.usernameFragment||t.ufrag)),"candidate:"+n.join(" ")},e.parseIceOptions=function(t){return t.substr(14).split(" ")},e.parseRtpMap=function(t){var n=t.substr(9).split(" "),i={payloadType:parseInt(n.shift(),10)};return n=n[0].split("/"),i.name=n[0],i.clockRate=parseInt(n[1],10),i.channels=n.length===3?parseInt(n[2],10):1,i.numChannels=i.channels,i},e.writeRtpMap=function(t){var n=t.payloadType;t.preferredPayloadType!==void 0&&(n=t.preferredPayloadType);var i=t.channels||t.numChannels||1;return"a=rtpmap:"+n+" "+t.name+"/"+t.clockRate+(i!==1?"/"+i:"")+`\r
`},e.parseExtmap=function(t){var n=t.substr(9).split(" ");return{id:parseInt(n[0],10),direction:n[0].indexOf("/")>0?n[0].split("/")[1]:"sendrecv",uri:n[1]}},e.writeExtmap=function(t){return"a=extmap:"+(t.id||t.preferredId)+(t.direction&&t.direction!=="sendrecv"?"/"+t.direction:"")+" "+t.uri+`\r
`},e.parseFmtp=function(t){for(var n={},i,s=t.substr(t.indexOf(" ")+1).split(";"),a=0;a<s.length;a++)i=s[a].trim().split("="),n[i[0].trim()]=i[1];return n},e.writeFmtp=function(t){var n="",i=t.payloadType;if(t.preferredPayloadType!==void 0&&(i=t.preferredPayloadType),t.parameters&&Object.keys(t.parameters).length){var s=[];Object.keys(t.parameters).forEach(function(a){t.parameters[a]?s.push(a+"="+t.parameters[a]):s.push(a)}),n+="a=fmtp:"+i+" "+s.join(";")+`\r
`}return n},e.parseRtcpFb=function(t){var n=t.substr(t.indexOf(" ")+1).split(" ");return{type:n.shift(),parameter:n.join(" ")}},e.writeRtcpFb=function(t){var n="",i=t.payloadType;return t.preferredPayloadType!==void 0&&(i=t.preferredPayloadType),t.rtcpFeedback&&t.rtcpFeedback.length&&t.rtcpFeedback.forEach(function(s){n+="a=rtcp-fb:"+i+" "+s.type+(s.parameter&&s.parameter.length?" "+s.parameter:"")+`\r
`}),n},e.parseSsrcMedia=function(t){var n=t.indexOf(" "),i={ssrc:parseInt(t.substr(7,n-7),10)},s=t.indexOf(":",n);return s>-1?(i.attribute=t.substr(n+1,s-n-1),i.value=t.substr(s+1)):i.attribute=t.substr(n+1),i},e.parseSsrcGroup=function(t){var n=t.substr(13).split(" ");return{semantics:n.shift(),ssrcs:n.map(function(i){return parseInt(i,10)})}},e.getMid=function(t){var n=e.matchPrefix(t,"a=mid:")[0];if(n)return n.substr(6)},e.parseFingerprint=function(t){var n=t.substr(14).split(" ");return{algorithm:n[0].toLowerCase(),value:n[1]}},e.getDtlsParameters=function(t,n){var i=e.matchPrefix(t+n,"a=fingerprint:");return{role:"auto",fingerprints:i.map(e.parseFingerprint)}},e.writeDtlsParameters=function(t,n){var i="a=setup:"+n+`\r
`;return t.fingerprints.forEach(function(s){i+="a=fingerprint:"+s.algorithm+" "+s.value+`\r
`}),i},e.parseCryptoLine=function(t){var n=t.substr(9).split(" ");return{tag:parseInt(n[0],10),cryptoSuite:n[1],keyParams:n[2],sessionParams:n.slice(3)}},e.w