ize();e-Math.floor(e)!==0&&(Lt("KeyframeTrack: Invalid value size in track.",this),t=!1);let n=this.times,i=this.values,r=n.length;r===0&&(Lt("KeyframeTrack: Track is empty.",this),t=!1);let a=null;for(let o=0;o!==r;o++){let l=n[o];if(typeof l=="number"&&isNaN(l)){Lt("KeyframeTrack: Time is not a valid number.",this,o,l),t=!1;break}if(a!==null&&a>l){Lt("KeyframeTrack: Out of order keys.",this,o,l,a),t=!1;break}a=l}if(i!==void 0&&fp(i))for(let o=0,l=i.length;o!==l;++o){let c=i[o];if(isNaN(c)){Lt("KeyframeTrack: Value is not a valid number.",this,o,c),t=!1;break}}return t}optimize(){let t=this.times.slice(),e=this.values.slice(),n=this.getValueSize(),i=this.getInterpolation()===eo,r=t.length-1,a=1;for(let o=1;o0){t[a]=t[r];for(let o=r*n,l=a*n,c=0;c!==n;++c)e[l+c]=e[o+c];++a}return a!==t.length?(this.times=t.slice(0,a),this.values=e.slice(0,a*n)):(this.times=t,this.values=e),this}clone(){let t=this.times.slice(),e=this.values.slice(),n=this.constructor,i=new n(this.name,t,e);return i.createInterpolant=this.createInterpolant,ur(this.settings)&&(i.settings={inTangents:this.settings.inTangents.slice(),outTangents:this.settings.outTangents.slice()}),i}};function cf(s,t){for(let e=0,n=s.length;e!==n;e+=2)s[e]*=t}sn.prototype.ValueTypeName="";sn.prototype.TimeBufferType=Float32Array;sn.prototype.ValueBufferType=Float32Array;sn.prototype.DefaultInterpolation=ho;var jn=class extends sn{constructor(t,e,n){super(t,e,n)}};jn.prototype.ValueTypeName="bool";jn.prototype.ValueBufferType=Array;jn.prototype.DefaultInterpolation=pr;jn.prototype.InterpolantFactoryMethodLinear=void 0;jn.prototype.InterpolantFactoryMethodSmooth=void 0;var Hr=class extends sn{constructor(t,e,n,i){super(t,e,n,i)}};Hr.prototype.ValueTypeName="color";var Ns=class extends sn{constructor(t,e,n,i){super(t,e,n,i)}};Ns.prototype.ValueTypeName="number";var al=class extends xi{constructor(t,e,n,i){super(t,e,n,i)}interpolate_(t,e,n,i){let r=this.resultBuffer,a=this.sampleValues,o=this.valueSize,l=(n-e)/(i-e),c=t*o;for(let h=c+o;c!==h;c+=4)Fe.slerpFlat(r,0,a,c-o,a,c,l);return r}},Us=class extends sn{constructor(t,e,n,i){super(t,e,n,i)}InterpolantFactoryMethodLinear(t){return new al(this.times,this.values,this.getValueSize(),t)}};Us.prototype.ValueTypeName="quaternion";Us.prototype.InterpolantFactoryMethodSmooth=void 0;var ti=class extends sn{constructor(t,e,n){super(t,e,n)}};ti.prototype.ValueTypeName="string";ti.prototype.ValueBufferType=Array;ti.prototype.DefaultInterpolation=pr;ti.prototype.InterpolantFactoryMethodLinear=void 0;ti.prototype.InterpolantFactoryMethodSmooth=void 0;var Wr=class extends sn{constructor(t,e,n,i){super(t,e,n,i)}};Wr.prototype.ValueTypeName="vector";var Yi=class{constructor(t="",e=-1,n=[],i=lc){this.name=t,this.tracks=n,this.duration=e,this.blendMode=i,this.uuid=cn(),this.userData={},this.duration<0&&this.resetDuration()}static parse(t){let e=[],n=t.tracks,i=1/(t.fps||1);for(let a=0,o=n.length;a!==o;++a)e.push(F_(n[a]).scale(i));let r=new this(t.name,t.duration,e,t.blendMode);return r.uuid=t.uuid,r.userData=JSON.parse(t.userData||"{}"),r}static toJSON(t){let e=[],n=t.tracks,i={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode,userData:JSON.stringify(t.userData)};for(let r=0,a=n.length;r!==a;++r)e.push(sn.toJSON(n[r]));return i}static CreateFromMorphTargetSequence(t,e,n,i){let r=e.length,a=[];for(let o=0;o1){let d=h[1],u=i[d];u||(i[d]=u=[]),u.push(c)}}let a=[];for(let o in i)a.push(this.CreateFromMorphTargetSequence(o,i[o],e,n));return a}resetDuration(){let t=this.tracks,e=0;for(let n=0,i=t.length;n!==i;++n){let r=this.tracks[n];e=Math.max(e,r.times[r.times.length-1])}return this.duration=e,this}trim(){for(let t=0;t