=i}if(void 0!==i&&Vo.isTypedArray(i))for(let e=0,n=i.length;e!==n;++e){const n=i[e];if(isNaN(n)){console.error("THREE.KeyframeTrack: Value is not a valid number.",this,e,n),t=!1;break}}return t}optimize(){const t=Vo.arraySlice(this.times),e=Vo.arraySlice(this.values),n=this.getValueSize(),i=this.getInterpolation()===U,r=t.length-1;let s=1;for(let a=1;a0){t[s]=t[r];for(let t=r*n,i=s*n,a=0;a!==n;++a)e[i+a]=e[t+a];++s}return s!==t.length?(this.times=Vo.arraySlice(t,0,s),this.values=Vo.arraySlice(e,0,s*n)):(this.times=t,this.values=e),this}clone(){const t=Vo.arraySlice(this.times,0),e=Vo.arraySlice(this.values,0),n=new(0,this.constructor)(this.name,t,e);return n.createInterpolant=this.createInterpolant,n}}Yo.prototype.TimeBufferType=Float32Array,Yo.prototype.ValueBufferType=Float32Array,Yo.prototype.DefaultInterpolation=G;class Zo extends Yo{}Zo.prototype.ValueTypeName="bool",Zo.prototype.ValueBufferType=Array,Zo.prototype.DefaultInterpolation=H,Zo.prototype.InterpolantFactoryMethodLinear=void 0,Zo.prototype.InterpolantFactoryMethodSmooth=void 0;class Jo extends Yo{}Jo.prototype.ValueTypeName="color";class Qo extends Yo{}Qo.prototype.ValueTypeName="number";class Ko extends Wo{constructor(t,e,n,i){super(t,e,n,i)}interpolate_(t,e,n,i){const r=this.resultBuffer,s=this.sampleValues,a=this.valueSize,o=(n-e)/(i-e);let l=t*a;for(let t=l+a;l!==t;l+=4)At.slerpFlat(r,0,s,l-a,s,l,o);return r}}class $o extends Yo{InterpolantFactoryMethodLinear(t){return new Ko(this.times,this.values,this.getValueSize(),t)}}$o.prototype.ValueTypeName="quaternion",$o.prototype.DefaultInterpolation=G,$o.prototype.InterpolantFactoryMethodSmooth=void 0;class tl extends Yo{}tl.prototype.ValueTypeName="string",tl.prototype.ValueBufferType=Array,tl.prototype.DefaultInterpolation=H,tl.prototype.InterpolantFactoryMethodLinear=void 0,tl.prototype.InterpolantFactoryMethodSmooth=void 0;class el extends Yo{}el.prototype.ValueTypeName="vector";class nl{constructor(t,e=-1,n,i=2500){this.name=t,this.tracks=n,this.duration=e,this.blendMode=i,this.uuid=ct(),this.duration<0&&this.resetDuration()}static parse(t){const e=[],n=t.tracks,i=1/(t.fps||1);for(let t=0,r=n.length;t!==r;++t)e.push(il(n[t]).scale(i));const r=new this(t.name,t.duration,e,t.blendMode);return r.uuid=t.uuid,r}static toJSON(t){const e=[],n=t.tracks,i={name:t.name,duration:t.duration,tracks:e,uuid:t.uuid,blendMode:t.blendMode};for(let t=0,i=n.length;t!==i;++t)e.push(Yo.toJSON(n[t]));return i}static CreateFromMorphTargetSequence(t,e,n,i){const r=e.length,s=[];for(let t=0;t1){const t=s[1];let e=i[t];e||(i[t]=e=[]),e.push(n)}}const s=[];for(const t in i)s.push(this.CreateFromMorphTargetSequence(t,i[t],e,n));return s}static parseAnimation(t,e){if(!t)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;const n=function(t,e,n,i,r){if(0!==n.length){const s=[],a=[];Vo.flattenJSON(n,s,a,i),0!==s.length&&r.push(new t(e,s,a))}},i=[],r=t.name||"default",s=t.fps||30,a=t.blendMode;let o=t.length||-1;const l=t.hierarchy||[];for(let t=0;t