chessfield/dist/chessfield.umd.js

A TypeScript+ThreeJS library to render a 3D chessboard

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/**
   * @license
   * Copyright 2010-2024 Three.js Authors
   * SPDX-License-Identifier: MIT
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Re;Ve.define({[te]:{primaries:Le,whitePoint:Ge,transfer:ee,toXYZ:Fe,fromXYZ:ke,luminanceCoefficients:ze,workingColorSpaceConfig:{unpackColorSpace:$t},outputColorSpaceConfig:{drawingBufferColorSpace:$t}},[$t]:{primaries:Le,whitePoint:Ge,transfer:ie,toXYZ:Fe,fromXYZ:ke,luminanceCoefficients:ze,outputColorSpaceConfig:{drawingBufferColorSpace:$t}}});class qe{static getDataURL(t){if(/^data:/i.test(t.src))return t.src;if("undefined"==typeof HTMLCanvasElement)return t.src;let e;if(t instanceof HTMLCanvasElement)e=t;else{void 0===Re&&(Re=Se("canvas")),Re.width=t.width,Re.height=t.height;const i=Re.getContext("2d");t instanceof ImageData?i.putImageData(t,0,0):i.drawImage(t,0,0,t.width,t.height),e=Re}return e.width>2048||e.height>2048?(console.warn("THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons",t),e.toDataURL("image/jpeg",.6)):e.toDataURL("image/png")}static sRGBToLinear(t){if("undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap){const e=Se("canvas");e.width=t.width,e.height=t.height;const i=e.getContext("2d");i.drawImage(t,0,0,t.width,t.height);const n=i.getImageData(0,0,t.width,t.height),o=n.data;for(let t=0;t<o.length;t++)o[t]=255*Oe(o[t]/255);return i.putImageData(n,0,0),e}if(t.data){const e=t.data.slice(0);for(let t=0;t<e.length;t++)e instanceof Uint8Array||e instanceof Uint8ClampedArray?e[t]=Math.floor(255*Oe(e[t]/255)):e[t]=Oe(e[t]);return{data:e,width:t.width,height:t.height}}return console.warn("THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied."),t}}let Ye=0;class Je{constructor(t=null){this.isSource=!0,Object.defineProperty(this,"id",{value:Ye++}),this.uuid=me(),this.data=t,this.dataReady=!0,this.version=0}set needsUpdate(t){!0===t&&this.version++}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.images[this.uuid])return t.images[this.uuid];const i={uuid:this.uuid,url:""},n=this.data;if(null!==n){let t;if(Array.isArray(n)){t=[];for(let e=0,i=n.length;e<i;e++)n[e].isDataTexture?t.push(Ke(n[e].image)):t.push(Ke(n[e]))}else t=Ke(n);i.url=t}return e||(t.images[this.uuid]=i),i}}function Ke(t){return"undefined"!=typeof HTMLImageElement&&t instanceof HTMLImageElement||"undefined"!=typeof HTMLCanvasElement&&t instanceof HTMLCanvasElement||"undefined"!=typeof ImageBitmap&&t instanceof ImageBitmap?qe.getDataURL(t):t.data?{data:Array.from(t.data),width:t.width,height:t.height,type:t.data.constructor.name}:(console.warn("THREE.Texture: Unable to serialize Texture."),{})}let We=0;class Ze extends Me{constructor(t=Ze.DEFAULT_IMAGE,e=Ze.DEFAULT_MAPPING,i=1001,n=1001,o=1006,s=1008,r=1023,a=1009,g=Ze.DEFAULT_ANISOTROPY,A=""){super(),this.isTexture=!0,Object.defineProperty(this,"id",{value:We++}),this.uuid=me(),this.name="",this.source=new Je(t),this.mipmaps=[],this.mapping=e,this.channel=0,this.wrapS=i,this.wrapT=n,this.magFilter=o,this.minFilter=s,this.anisotropy=g,this.format=r,this.internalFormat=null,this.type=a,this.offset=new Qe(0,0),this.repeat=new Qe(1,1),this.center=new Qe(0,0),this.rotation=0,this.matrixAutoUpdate=!0,this.matrix=new ve,this.generateMipmaps=!0,this.premultiplyAlpha=!1,this.flipY=!0,this.unpackAlignment=4,this.colorSpace=A,this.userData={},this.version=0,this.onUpdate=null,this.isRenderTargetTexture=!1,this.pmremVersion=0}get image(){return this.source.data}set image(t=null){this.source.data=t}updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y)}clone(){return(new this.constructor).copy(this)}copy(t){return this.name=t.name,this.source=t.source,this.mipmaps=t.mipmaps.slice(0),this.mapping=t.mapping,this.channel=t.channel,this.wrapS=t.wrapS,this.wrapT=t.wrapT,this.magFilter=t.magFilter,this.minFilter=t.minFilter,this.anisotropy=t.anisotropy,this.format=t.format,this.internalFormat=t.internalFormat,this.type=t.type,this.offset.copy(t.offset),this.repeat.copy(t.repeat),this.center.copy(t.center),this.rotation=t.rotation,this.matrixAutoUpdate=t.matrixAutoUpdate,this.matrix.copy(t.matrix),this.generateMipmaps=t.generateMipmaps,this.premultiplyAlpha=t.premultiplyAlpha,this.flipY=t.flipY,this.unpackAlignment=t.unpackAlignment,this.colorSpace=t.colorSpace,this.userData=JSON.parse(JSON.stringify(t.userData)),this.needsUpdate=!0,this}toJSON(t){const e=void 0===t||"string"==typeof t;if(!e&&void 0!==t.textures[this.uuid])return t.textures[this.uuid];const i={metadata:{version:4.6,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,image:this.source.toJSON(t).uuid,mapping:this.mapping,channel:this.channel,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,internalFormat:this.internalFormat,type:this.type,colorSpace:this.colorSpace,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,generateMipmaps:this.generateMipmaps,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};return Object.keys(this.userData).length>0&&(i.userData=this.userData),e||(t.textures[this.uuid]=i),i}dispose(){this.dispatchEvent({type:"dispose"})}transformUv(t){if(300!==this.mapping)return t;if(t.applyMatrix3(this.matrix),t.x<0||t.x>1)switch(this.wrapS){case R:t.x=t.x-Math.floor(t.x);break;case q:t.x=t.x<0?0:1;break;case Y:1===Math.abs(Math.floor(t.x)%2)?t.x=Math.ceil(t.x)-t.x:t.x=t.x-Math.floor(t.x)}if(t.y<0||t.y>1)switch(this.wrapT){case R:t.y=t.y-Math.floor(t.y);break;case q:t.y=t.y<0?0:1;break;case Y:1===Math.abs(Math.floor(t.y)%2)?t.y=Math.ceil(t.y)-t.y:t.y=t.y-Math.floor(t.y)}return this.flipY&&(t.y=1-t.y),t}set needsUpdate(t){!0===t&&(this.version++,this.source.needsUpdate=!0)}set needsPMREMUpdate(t){!0===t&&this.pmremVersion++}}Ze.DEFAULT_IMAGE=null,Ze.DEFAULT_MAPPING=300,Ze.DEFAULT_ANISOTROPY=1;class Xe{constructor(t=0,e=0,i=0,n=1){Xe.prototype.isVector4=!0,this.x=t,this.y=e,this.z=i,this.w=n}get width(){return this.z}set width(t){this.z=t}get height(){return this.w}set height(t){this.w=t}set(t,e,i,n){return this.x=t,this.y=e,this.z=i,this.w=n,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this.w=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setW(t){return this.w=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;case 3:this.w=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z,this.w)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this.w=void 0!==t.w?t.w:1,this}add(t){return this.x+=t.x,this.y+=t.y,this.z+=t.z,this.w+=t.w,this}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this.w+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this.w=t.w+e.w,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this.w+=t.w*e,this}sub(t){return this.x-=t.x,this.y-=t.y,this.z-=t.z,this.w-=t.w,this}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this.w-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this.w=t.w-e.w,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this.w*=t.w,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this.w*=t,this}applyMatrix4(t){const e=this.x,i=this.y,n=this.z,o=this.w,s=t.elements;return this.x=s[0]*e+s[4]*i+s[8]*n+s[12]*o,this.y=s[1]*e+s[5]*i+s[9]*n+s[13]*o,this.z=s[2]*e+s[6]*i+s[10]*n+s[14]*o,this.w=s[3]*e+s[7]*i+s[11]*n+s[15]*o,this}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this.w/=t.w,this}divideScalar(t){return this.multiplyScalar(1/t)}setAxisAngleFromQuaternion(t){this.w=2*Math.acos(t.w);const e=Math.sqrt(1-t.w*t.w);return e<1e-4?(this.x=1,this.y=0,this.z=0):(this.x=t.x/e,this.y=t.y/e,this.z=t.z/e),this}setAxisAngleFromRotationMatrix(t){let e,i,n,o;const s=.01,r=.1,a=t.elements,g=a[0],A=a[4],c=a[8],l=a[1],u=a[5],h=a[9],I=a[2],d=a[6],M=a[10];if(Math.abs(A-l)<s&&Math.abs(c-I)<s&&Math.abs(h-d)<s){if(Math.abs(A+l)<r&&Math.abs(c+I)<r&&Math.abs(h+d)<r&&Math.abs(g+u+M-3)<r)return this.set(1,0,0,0),this;e=Math.PI;const t=(g+1)/2,a=(u+1)/2,D=(M+1)/2,f=(A+l)/4,p=(c+I)/4,C=(h+d)/4;return t>a&&t>D?t<s?(i=0,n=.707106781,o=.707106781):(i=Math.sqrt(t),n=f/i,o=p/i):a>D?a<s?(i=.707106781,n=0,o=.707106781):(n=Math.sqrt(a),i=f/n,o=C/n):D<s?(i=.707106781,n=.707106781,o=0):(o=Math.sqrt(D),i=p/o,n=C/o),this.set(i,n,o,e),this}let D=Math.sqrt((d-h)*(d-h)+(c-I)*(c-I)+(l-A)*(l-A));return Math.abs(D)<.001&&(D=1),this.x=(d-h)/D,this.y=(c-I)/D,this.z=(l-A)/D,this.w=Math.acos((g+u+M-1)/2),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this.w=e[15],this}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this.w=Math.min(this.w,t.w),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this.w=Math.max(this.w,t.w),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this.w=Math.max(t.w,Math.min(e.w,this.w)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this.w=Math.max(t,Math.min(e,this.w)),this}clampLength(t,e){const i=this.length();return this.divideScalar(i||1).multiplyScalar(Math.max(t,Math.min(e,i)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this.w=Math.floor(this.w),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this.w=Math.ceil(this.w),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this.w=Math.round(this.w),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this.w=Math.trunc(this.w),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this.w=-this.w,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z+this.w*t.w}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this.w+=(t.w-this.w)*e,this}lerpVectors(t,e,i){return this.x=t.x+(e.x-t.x)*i,this.y=t.y+(e.y-t.y)*i,this.z=t.z+(e.z-t.z)*i,this.w=t.w+(e.w-t.w)*i,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z&&t.w===this.w}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this.w=t[e+3],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t[e+3]=this.w,t}fromBufferAttribute(t,e){return this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this.w=t.getW(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this.w=Math.random(),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z,yield this.w}}class _e extends Me{constructor(t=1,e=1,i={}){super(),this.isRenderTarget=!0,this.width=t,this.height=e,this.depth=1,this.scissor=new Xe(0,0,t,e),this.scissorTest=!1,this.viewport=new Xe(0,0,t,e);const n={width:t,height:e,depth:1};i=Object.assign({generateMipmaps:!1,internalFormat:null,minFilter:Z,depthBuffer:!0,stencilBuffer:!1,resolveDepthBuffer:!0,resolveStencilBuffer:!0,depthTexture:null,samples:0,count:1},i);const o=new Ze(n,i.mapping,i.wrapS,i.wrapT,i.magFilter,i.minFilter,i.format,i.type,i.anisotropy,i.colorSpace);o.flipY=!1,o.generateMipmaps=i.generateMipmaps,o.internalFormat=i.internalFormat,this.textures=[];const s=i.count;for(let r=0;r<s;r++)this.textures[r]=o.clone(),this.textures[r].isRenderTargetTexture=!0;this.depthBuffer=i.depthBuffer,this.stencilBuffer=i.stencilBuffer,this.resolveDepthBuffer=i.resolveDepthBuffer,this.resolveStencilBuffer=i.resolveStencilBuffer,this.depthTexture=i.depthTexture,this.samples=i.samples}get texture(){return this.textures[0]}set texture(t){this.textures[0]=t}setSize(t,e,i=1){if(this.width!==t||this.height!==e||this.depth!==i){this.width=t,this.height=e,this.depth=i;for(let n=0,o=this.textures.length;n<o;n++)this.textures[n].image.width=t,this.textures[n].image.height=e,this.textures[n].image.depth=i;this.dispose()}this.viewport.set(0,0,t,e),this.scissor.set(0,0,t,e)}clone(){return(new this.constructor).copy(this)}copy(t){this.width=t.width,this.height=t.height,this.depth=t.depth,this.scissor.copy(t.scissor),this.scissorTest=t.scissorTest,this.viewport.copy(t.viewport),this.textures.length=0;for(let i=0,n=t.textures.length;i<n;i++)this.textures[i]=t.textures[i].clone(),this.textures[i].isRenderTargetTexture=!0;const e=Object.assign({},t.texture.image);return this.texture.source=new Je(e),this.depthBuffer=t.depthBuffer,this.stencilBuffer=t.stencilBuffer,this.resolveDepthBuffer=t.resolveDepthBuffer,this.resolveStencilBuffer=t.resolveStencilBuffer,null!==t.depthTexture&&(this.depthTexture=t.depthTexture.clone()),this.samples=t.samples,this}dispose(){this.dispatchEvent({type:"dispose"})}}class $e extends _e{constructor(t=1,e=1,i={}){super(t,e,i),this.isWebGLRenderTarget=!0}}class ti extends Ze{constructor(t=null,e=1,i=1,n=1){super(null),this.isDataArrayTexture=!0,this.image={data:t,width:e,height:i,depth:n},this.magFilter=J,this.minFilter=J,this.wrapR=q,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1,this.layerUpdates=new Set}addLayerUpdate(t){this.layerUpdates.add(t)}clearLayerUpdates(){this.layerUpdates.clear()}}class ei extends Ze{constructor(t=null,e=1,i=1,n=1){super(null),this.isData3DTexture=!0,this.image={data:t,width:e,height:i,depth:n},this.magFilter=J,this.minFilter=J,this.wrapR=q,this.generateMipmaps=!1,this.flipY=!1,this.unpackAlignment=1}}class ii{constructor(t=0,e=0,i=0,n=1){this.isQuaternion=!0,this._x=t,this._y=e,this._z=i,this._w=n}static slerpFlat(t,e,i,n,o,s,r){let a=i[n+0],g=i[n+1],A=i[n+2],c=i[n+3];const l=o[s+0],u=o[s+1],h=o[s+2],I=o[s+3];if(0===r)return t[e+0]=a,t[e+1]=g,t[e+2]=A,void(t[e+3]=c);if(1===r)return t[e+0]=l,t[e+1]=u,t[e+2]=h,void(t[e+3]=I);if(c!==I||a!==l||g!==u||A!==h){let t=1-r;const e=a*l+g*u+A*h+c*I,i=e>=0?1:-1,n=1-e*e;if(n>Number.EPSILON){const o=Math.sqrt(n),s=Math.atan2(o,e*i);t=Math.sin(t*s)/o,r=Math.sin(r*s)/o}const o=r*i;if(a=a*t+l*o,g=g*t+u*o,A=A*t+h*o,c=c*t+I*o,t===1-r){const t=1/Math.sqrt(a*a+g*g+A*A+c*c);a*=t,g*=t,A*=t,c*=t}}t[e]=a,t[e+1]=g,t[e+2]=A,t[e+3]=c}static multiplyQuaternionsFlat(t,e,i,n,o,s){const r=i[n],a=i[n+1],g=i[n+2],A=i[n+3],c=o[s],l=o[s+1],u=o[s+2],h=o[s+3];return t[e]=r*h+A*c+a*u-g*l,t[e+1]=a*h+A*l+g*c-r*u,t[e+2]=g*h+A*u+r*l-a*c,t[e+3]=A*h-r*c-a*l-g*u,t}get x(){return this._x}set x(t){this._x=t,this._onChangeCallback()}get y(){return this._y}set y(t){this._y=t,this._onChangeCallback()}get z(){return this._z}set z(t){this._z=t,this._onChangeCallback()}get w(){return this._w}set w(t){this._w=t,this._onChangeCallback()}set(t,e,i,n){return this._x=t,this._y=e,this._z=i,this._w=n,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._w)}copy(t){return this._x=t.x,this._y=t.y,this._z=t.z,this._w=t.w,this._onChangeCallback(),this}setFromEuler(t,e=!0){const i=t._x,n=t._y,o=t._z,s=t._order,r=Math.cos,a=Math.sin,g=r(i/2),A=r(n/2),c=r(o/2),l=a(i/2),u=a(n/2),h=a(o/2);switch(s){case"XYZ":this._x=l*A*c+g*u*h,this._y=g*u*c-l*A*h,this._z=g*A*h+l*u*c,this._w=g*A*c-l*u*h;break;case"YXZ":this._x=l*A*c+g*u*h,this._y=g*u*c-l*A*h,this._z=g*A*h-l*u*c,this._w=g*A*c+l*u*h;break;case"ZXY":this._x=l*A*c-g*u*h,this._y=g*u*c+l*A*h,this._z=g*A*h+l*u*c,this._w=g*A*c-l*u*h;break;case"ZYX":this._x=l*A*c-g*u*h,this._y=g*u*c+l*A*h,this._z=g*A*h-l*u*c,this._w=g*A*c+l*u*h;break;case"YZX":this._x=l*A*c+g*u*h,this._y=g*u*c+l*A*h,this._z=g*A*h-l*u*c,this._w=g*A*c-l*u*h;break;case"XZY":this._x=l*A*c-g*u*h,this._y=g*u*c-l*A*h,this._z=g*A*h+l*u*c,this._w=g*A*c+l*u*h;break;default:console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)}return!0===e&&this._onChangeCallback(),this}setFromAxisAngle(t,e){const i=e/2,n=Math.sin(i);return this._x=t.x*n,this._y=t.y*n,this._z=t.z*n,this._w=Math.cos(i),this._onChangeCallback(),this}setFromRotationMatrix(t){const e=t.elements,i=e[0],n=e[4],o=e[8],s=e[1],r=e[5],a=e[9],g=e[2],A=e[6],c=e[10],l=i+r+c;if(l>0){const t=.5/Math.sqrt(l+1);this._w=.25/t,this._x=(A-a)*t,this._y=(o-g)*t,this._z=(s-n)*t}else if(i>r&&i>c){const t=2*Math.sqrt(1+i-r-c);this._w=(A-a)/t,this._x=.25*t,this._y=(n+s)/t,this._z=(o+g)/t}else if(r>c){const t=2*Math.sqrt(1+r-i-c);this._w=(o-g)/t,this._x=(n+s)/t,this._y=.25*t,this._z=(a+A)/t}else{const t=2*Math.sqrt(1+c-i-r);this._w=(s-n)/t,this._x=(o+g)/t,this._y=(a+A)/t,this._z=.25*t}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let i=t.dot(e)+1;return i<Number.EPSILON?(i=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=i):(this._x=0,this._y=-t.z,this._z=t.y,this._w=i)):(this._x=t.y*e.z-t.z*e.y,this._y=t.z*e.x-t.x*e.z,this._z=t.x*e.y-t.y*e.x,this._w=i),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(xe(this.dot(t),-1,1)))}rotateTowards(t,e){const i=this.angleTo(t);if(0===i)return this;const n=Math.min(1,e/i);return this.slerp(t,n),this}identity(){return this.set(0,0,0,1)}invert(){return this.conjugate()}conjugate(){return this._x*=-1,this._y*=-1,this._z*=-1,this._onChangeCallback(),this}dot(t){return this._x*t._x+this._y*t._y+this._z*t._z+this._w*t._w}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)}normalize(){let t=this.length();return 0===t?(this._x=0,this._y=0,this._z=0,this._w=1):(t=1/t,this._x=this._x*t,this._y=this._y*t,this._z=this._z*t,this._w=this._w*t),this._onChangeCallback(),this}multiply(t){return this.multiplyQuaternions(this,t)}premultiply(t){return this.multiplyQuaternions(t,this)}multiplyQuaternions(t,e){const i=t._x,n=t._y,o=t._z,s=t._w,r=e._x,a=e._y,g=e._z,A=e._w;return this._x=i*A+s*r+n*g-o*a,this._y=n*A+s*a+o*r-i*g,this._z=o*A+s*g+i*a-n*r,this._w=s*A-i*r-n*a-o*g,this._onChangeCallback(),this}slerp(t,e){if(0===e)return this;if(1===e)return this.copy(t);const i=this._x,n=this._y,o=this._z,s=this._w;let r=s*t._w+i*t._x+n*t._y+o*t._z;if(r<0?(this._w=-t._w,this._x=-t._x,this._y=-t._y,this._z=-t._z,r=-r):this.copy(t),r>=1)return this._w=s,this._x=i,this._y=n,this._z=o,this;const a=1-r*r;if(a<=Number.EPSILON){const t=1-e;return this._w=t*s+e*this._w,this._x=t*i+e*this._x,this._y=t*n+e*this._y,this._z=t*o+e*this._z,this.normalize(),this}const g=Math.sqrt(a),A=Math.atan2(g,r),c=Math.sin((1-e)*A)/g,l=Math.sin(e*A)/g;return this._w=s*c+this._w*l,this._x=i*c+this._x*l,this._y=n*c+this._y*l,this._z=o*c+this._z*l,this._onChangeCallback(),this}slerpQuaternions(t,e,i){return this.copy(t).slerp(e,i)}random(){const t=2*Math.PI*Math.random(),e=2*Math.PI*Math.random(),i=Math.random(),n=Math.sqrt(1-i),o=Math.sqrt(i);return this.set(n*Math.sin(t),n*Math.cos(t),o*Math.sin(e),o*Math.cos(e))}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._w===this._w}fromArray(t,e=0){return this._x=t[e],this._y=t[e+1],this._z=t[e+2],this._w=t[e+3],this._onChangeCallback(),this}toArray(t=[],e=0){return t[e]=this._x,t[e+1]=this._y,t[e+2]=this._z,t[e+3]=this._w,t}fromBufferAttribute(t,e){return this._x=t.getX(e),this._y=t.getY(e),this._z=t.getZ(e),this._w=t.getW(e),this._onChangeCallback(),this}toJSON(){return this.toArray()}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}*[Symbol.iterator](){yield this._x,yield this._y,yield this._z,yield this._w}}class ni{constructor(t=0,e=0,i=0){ni.prototype.isVector3=!0,this.x=t,this.y=e,this.z=i}set(t,e,i){return void 0===i&&(i=this.z),this.x=t,this.y=e,this.z=i,this}setScalar(t){return this.x=t,this.y=t,this.z=t,this}setX(t){return this.x=t,this}setY(t){return this.y=t,this}setZ(t){return this.z=t,this}setComponent(t,e){switch(t){case 0:this.x=e;break;case 1:this.y=e;break;case 2:this.z=e;break;default:throw new Error("index is out of range: "+t)}return this}getComponent(t){switch(t){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+t)}}clone(){return new this.constructor(this.x,this.y,this.z)}copy(t){return this.x=t.x,this.y=t.y,this.z=t.z,this}add(t){return this.x+=t.x,this.y+=t.y,this.z+=t.z,this}addScalar(t){return this.x+=t,this.y+=t,this.z+=t,this}addVectors(t,e){return this.x=t.x+e.x,this.y=t.y+e.y,this.z=t.z+e.z,this}addScaledVector(t,e){return this.x+=t.x*e,this.y+=t.y*e,this.z+=t.z*e,this}sub(t){return this.x-=t.x,this.y-=t.y,this.z-=t.z,this}subScalar(t){return this.x-=t,this.y-=t,this.z-=t,this}subVectors(t,e){return this.x=t.x-e.x,this.y=t.y-e.y,this.z=t.z-e.z,this}multiply(t){return this.x*=t.x,this.y*=t.y,this.z*=t.z,this}multiplyScalar(t){return this.x*=t,this.y*=t,this.z*=t,this}multiplyVectors(t,e){return this.x=t.x*e.x,this.y=t.y*e.y,this.z=t.z*e.z,this}applyEuler(t){return this.applyQuaternion(si.setFromEuler(t))}applyAxisAngle(t,e){return this.applyQuaternion(si.setFromAxisAngle(t,e))}applyMatrix3(t){const e=this.x,i=this.y,n=this.z,o=t.elements;return this.x=o[0]*e+o[3]*i+o[6]*n,this.y=o[1]*e+o[4]*i+o[7]*n,this.z=o[2]*e+o[5]*i+o[8]*n,this}applyNormalMatrix(t){return this.applyMatrix3(t).normalize()}applyMatrix4(t){const e=this.x,i=this.y,n=this.z,o=t.elements,s=1/(o[3]*e+o[7]*i+o[11]*n+o[15]);return this.x=(o[0]*e+o[4]*i+o[8]*n+o[12])*s,this.y=(o[1]*e+o[5]*i+o[9]*n+o[13])*s,this.z=(o[2]*e+o[6]*i+o[10]*n+o[14])*s,this}applyQuaternion(t){const e=this.x,i=this.y,n=this.z,o=t.x,s=t.y,r=t.z,a=t.w,g=2*(s*n-r*i),A=2*(r*e-o*n),c=2*(o*i-s*e);return this.x=e+a*g+s*c-r*A,this.y=i+a*A+r*g-o*c,this.z=n+a*c+o*A-s*g,this}project(t){return this.applyMatrix4(t.matrixWorldInverse).applyMatrix4(t.projectionMatrix)}unproject(t){return this.applyMatrix4(t.projectionMatrixInverse).applyMatrix4(t.matrixWorld)}transformDirection(t){const e=this.x,i=this.y,n=this.z,o=t.elements;return this.x=o[0]*e+o[4]*i+o[8]*n,this.y=o[1]*e+o[5]*i+o[9]*n,this.z=o[2]*e+o[6]*i+o[10]*n,this.normalize()}divide(t){return this.x/=t.x,this.y/=t.y,this.z/=t.z,this}divideScalar(t){return this.multiplyScalar(1/t)}min(t){return this.x=Math.min(this.x,t.x),this.y=Math.min(this.y,t.y),this.z=Math.min(this.z,t.z),this}max(t){return this.x=Math.max(this.x,t.x),this.y=Math.max(this.y,t.y),this.z=Math.max(this.z,t.z),this}clamp(t,e){return this.x=Math.max(t.x,Math.min(e.x,this.x)),this.y=Math.max(t.y,Math.min(e.y,this.y)),this.z=Math.max(t.z,Math.min(e.z,this.z)),this}clampScalar(t,e){return this.x=Math.max(t,Math.min(e,this.x)),this.y=Math.max(t,Math.min(e,this.y)),this.z=Math.max(t,Math.min(e,this.z)),this}clampLength(t,e){const i=this.length();return this.divideScalar(i||1).multiplyScalar(Math.max(t,Math.min(e,i)))}floor(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this}ceil(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this}round(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this}roundToZero(){return this.x=Math.trunc(this.x),this.y=Math.trunc(this.y),this.z=Math.trunc(this.z),this}negate(){return this.x=-this.x,this.y=-this.y,this.z=-this.z,this}dot(t){return this.x*t.x+this.y*t.y+this.z*t.z}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)}normalize(){return this.divideScalar(this.length()||1)}setLength(t){return this.normalize().multiplyScalar(t)}lerp(t,e){return this.x+=(t.x-this.x)*e,this.y+=(t.y-this.y)*e,this.z+=(t.z-this.z)*e,this}lerpVectors(t,e,i){return this.x=t.x+(e.x-t.x)*i,this.y=t.y+(e.y-t.y)*i,this.z=t.z+(e.z-t.z)*i,this}cross(t){return this.crossVectors(this,t)}crossVectors(t,e){const i=t.x,n=t.y,o=t.z,s=e.x,r=e.y,a=e.z;return this.x=n*a-o*r,this.y=o*s-i*a,this.z=i*r-n*s,this}projectOnVector(t){const e=t.lengthSq();if(0===e)return this.set(0,0,0);const i=t.dot(this)/e;return this.copy(t).multiplyScalar(i)}projectOnPlane(t){return oi.copy(this).projectOnVector(t),this.sub(oi)}reflect(t){return this.sub(oi.copy(t).multiplyScalar(2*this.dot(t)))}angleTo(t){const e=Math.sqrt(this.lengthSq()*t.lengthSq());if(0===e)return Math.PI/2;const i=this.dot(t)/e;return Math.acos(xe(i,-1,1))}distanceTo(t){return Math.sqrt(this.distanceToSquared(t))}distanceToSquared(t){const e=this.x-t.x,i=this.y-t.y,n=this.z-t.z;return e*e+i*i+n*n}manhattanDistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)+Math.abs(this.z-t.z)}setFromSpherical(t){return this.setFromSphericalCoords(t.radius,t.phi,t.theta)}setFromSphericalCoords(t,e,i){const n=Math.sin(e)*t;return this.x=n*Math.sin(i),this.y=Math.cos(e)*t,this.z=n*Math.cos(i),this}setFromCylindrical(t){return this.setFromCylindricalCoords(t.radius,t.theta,t.y)}setFromCylindricalCoords(t,e,i){return this.x=t*Math.sin(e),this.y=i,this.z=t*Math.cos(e),this}setFromMatrixPosition(t){const e=t.elements;return this.x=e[12],this.y=e[13],this.z=e[14],this}setFromMatrixScale(t){const e=this.setFromMatrixColumn(t,0).length(),i=this.setFromMatrixColumn(t,1).length(),n=this.setFromMatrixColumn(t,2).length();return this.x=e,this.y=i,this.z=n,this}setFromMatrixColumn(t,e){return this.fromArray(t.elements,4*e)}setFromMatrix3Column(t,e){return this.fromArray(t.elements,3*e)}setFromEuler(t){return this.x=t._x,this.y=t._y,this.z=t._z,this}setFromColor(t){return this.x=t.r,this.y=t.g,this.z=t.b,this}equals(t){return t.x===this.x&&t.y===this.y&&t.z===this.z}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this.z=t[e+2],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t[e+2]=this.z,t}fromBufferAttribute(t,e){return this.x=t.getX(e),this.y=t.getY(e),this.z=t.getZ(e),this}random(){return this.x=Math.random(),this.y=Math.random(),this.z=Math.random(),this}randomDirection(){const t=Math.random()*Math.PI*2,e=2*Math.random()-1,i=Math.sqrt(1-e*e);return this.x=i*Math.cos(t),this.y=e,this.z=i*Math.sin(t),this}*[Symbol.iterator](){yield this.x,yield this.y,yield this.z}}const oi=new ni,si=new ii;class ri{constructor(t=new ni(1/0,1/0,1/0),e=new ni(-1/0,-1/0,-1/0)){this.isBox3=!0,this.min=t,this.max=e}set(t,e){return this.min.copy(t),this.max.copy(e),this}setFromArray(t){this.makeEmpty();for(let e=0,i=t.length;e<i;e+=3)this.expandByPoint(gi.fromArray(t,e));return this}setFromBufferAttribute(t){this.makeEmpty();for(let e=0,i=t.count;e<i;e++)this.expandByPoint(gi.fromBufferAttribute(t,e));return this}setFromPoints(t){this.makeEmpty();for(let e=0,i=t.length;e<i;e++)this.expandByPoint(t[e]);return this}setFromCenterAndSize(t,e){const i=gi.copy(e).multiplyScalar(.5);return this.min.copy(t).sub(i),this.max.copy(t).add(i),this}setFromObject(t,e=!1){return this.makeEmpty(),this.expandByObject(t,e)}clone(){return(new this.constructor).copy(this)}copy(t){return this.min.copy(t.min),this.max.copy(t.max),this}makeEmpty(){return this.min.x=this.min.y=this.min.z=1/0,this.max.x=this.max.y=this.max.z=-1/0,this}isEmpty(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z}getCenter(t){return this.isEmpty()?t.set(0,0,0):t.addVectors(this.min,this.max).multiplyScalar(.5)}getSize(t){return this.isEmpty()?t.set(0,0,0):t.subVectors(this.max,this.min)}expandByPoint(t){return this.min.min(t),this.max.max(t),this}expandByVector(t){return this.min.sub(t),this.max.add(t),this}expandByScalar(t){return this.min.addScalar(-t),this.max.addScalar(t),this}expandByObject(t,e=!1){t.updateWorldMatrix(!1,!1);const i=t.geometry;if(void 0!==i){const n=i.getAttribute("position");if(!0===e&&void 0!==n&&!0!==t.isInstancedMesh)for(let e=0,i=n.count;e<i;e++)!0===t.isMesh?t.getVertexPosition(e,gi):gi.fromBufferAttribute(n,e),gi.applyMatrix4(t.matrixWorld),this.expandByPoint(gi);else void 0!==t.boundingBox?(null===t.boundingBox&&t.computeBoundingBox(),Ai.copy(t.boundingBox)):(null===i.boundingBox&&i.computeBoundingBox(),Ai.copy(i.boundingBox)),Ai.applyMatrix4(t.matrixWorld),this.union(Ai)}const n=t.children;for(let o=0,s=n.length;o<s;o++)this.expandByObject(n[o],e);return this}containsPoint(t){return t.x>=this.min.x&&t.x<=this.max.x&&t.y>=this.min.y&&t.y<=this.max.y&&t.z>=this.min.z&&t.z<=this.max.z}containsBox(t){return this.min.x<=t.min.x&&t.max.x<=this.max.x&&this.min.y<=t.min.y&&t.max.y<=this.max.y&&this.min.z<=t.min.z&&t.max.z<=this.max.z}getParameter(t,e){return e.set((t.x-this.min.x)/(this.max.x-this.min.x),(t.y-this.min.y)/(this.max.y-this.min.y),(t.z-this.min.z)/(this.max.z-this.min.z))}intersectsBox(t){return t.max.x>=this.min.x&&t.min.x<=this.max.x&&t.max.y>=this.min.y&&t.min.y<=this.max.y&&t.max.z>=this.min.z&&t.min.z<=this.max.z}intersectsSphere(t){return this.clampPoint(t.center,gi),gi.distanceToSquared(t.center)<=t.radius*t.radius}intersectsPlane(t){let e,i;return t.normal.x>0?(e=t.normal.x*this.min.x,i=t.normal.x*this.max.x):(e=t.normal.x*this.max.x,i=t.normal.x*this.min.x),t.normal.y>0?(e+=t.normal.y*this.min.y,i+=t.normal.y*this.max.y):(e+=t.normal.y*this.max.y,i+=t.normal.y*this.min.y),t.normal.z>0?(e+=t.normal.z*this.min.z,i+=t.normal.z*this.max.z):(e+=t.normal.z*this.max.z,i+=t.normal.z*this.min.z),e<=-t.constant&&i>=-t.constant}intersectsTriangle(t){if(this.isEmpty())return!1;this.getCenter(Mi),Di.subVectors(this.max,Mi),ci.subVectors(t.a,Mi),li.subVectors(t.b,Mi),ui.subVectors(t.c,Mi),hi.subVectors(li,ci),Ii.subVectors(ui,li),di.subVectors(ci,ui);let e=[0,-hi.z,hi.y,0,-Ii.z,Ii.y,0,-di.z,di.y,hi.z,0,-hi.x,Ii.z,0,-Ii.x,di.z,0,-di.x,-hi.y,hi.x,0,-Ii.y,Ii.x,0,-di.y,di.x,0];return!!Ci(e,ci,li,ui,Di)&&(e=[1,0,0,0,1,0,0,0,1],!!Ci(e,ci,li,ui,Di)&&(fi.crossVectors(hi,Ii),e=[fi.x,fi.y,fi.z],Ci(e,ci,li,ui,Di)))}clampPoint(t,e){return e.copy(t).clamp(this.min,this.max)}distanceToPoint(t){return this.clampPoint(t,gi).distanceTo(t)}getBoundingSphere(t){return this.isEmpty()?t.makeEmpty():(this.getCenter(t.center),t.radius=.5*this.getSize(gi).length()),t}intersect(t){return this.min.max(t.min),this.max.min(t.max),this.isEmpty()&&this.makeEmpty(),this}union(t){return this.min.min(t.min),this.max.max(t.max),this}applyMatrix4(t){return this.isEmpty()||(ai[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(t),ai[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(t),ai[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(t),ai[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(t),ai[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(t),ai[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(t),ai[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(t),ai[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(t),this.setFromPoints(ai)),this}translate(t){return this.min.add(t),this.max.add(t),this}equals(t){return t.min.equals(this.min)&&t.max.equals(this.max)}}const ai=[new ni,new ni,new ni,new ni,new ni,new ni,new ni,new ni],gi=new ni,Ai=new ri,ci=new ni,li=new ni,ui=new ni,hi=new ni,Ii=new ni,di=new ni,Mi=new ni,Di=new ni,fi=new ni,pi=new ni;function Ci(t,e,i,n,o){for(let s=0,r=t.length-3;s<=r;s+=3){pi.fromArray(t,s);const r=o.x*Math.abs(pi.x)+o.y*Math.abs(pi.y)+o.z*Math.abs(pi.z),a=e.dot(pi),g=i.dot(pi),A=n.dot(pi);if(Math.max(-Math.max(a,g,A),Math.min(a,g,A))>r)return!1}return!0}const mi=new ri,xi=new ni,Bi=new ni;class yi{constructor(t=new ni,e=-1){this.isSphere=!0,this.center=t,this.radius=e}set(t,e){return this.center.copy(t),this.radius=e,this}setFromPoints(t,e){const i=this.center;void 0!==e?i.copy(e):mi.setFromPoints(t).getCenter(i);let n=0;for(let o=0,s=t.length;o<s;o++)n=Math.max(n,i.distanceToSquared(t[o]));return this.radius=Math.sqrt(n),this}copy(t){return this.center.copy(t.center),this.radius=t.radius,this}isEmpty(){return this.radius<0}makeEmpty(){return this.center.set(0,0,0),this.radius=-1,this}containsPoint(t){return t.distanceToSquared(this.center)<=this.radius*this.radius}distanceToPoint(t){return t.distanceTo(this.center)-this.radius}intersectsSphere(t){const e=this.radius+t.radius;return t.center.distanceToSquared(this.center)<=e*e}intersectsBox(t){return t.intersectsSphere(this)}intersectsPlane(t){return Math.abs(t.distanceToPoint(this.center))<=this.radius}clampPoint(t,e){const i=this.center.distanceToSquared(t);return e.copy(t),i>this.radius*this.radius&&(e.sub(this.center).normalize(),e.multiplyScalar(this.radius).add(this.center)),e}getBoundingBox(t){return this.isEmpty()?(t.makeEmpty(),t):(t.set(this.center,this.center),t.expandByScalar(this.radius),t)}applyMatrix4(t){return this.center.applyMatrix4(t),this.radius=this.radius*t.getMaxScaleOnAxis(),this}translate(t){return this.center.add(t),this}expandByPoint(t){if(this.isEmpty())return this.center.copy(t),this.radius=0,this;xi.subVectors(t,this.center);const e=xi.lengthSq();if(e>this.radius*this.radius){const t=Math.sqrt(e),i=.5*(t-this.radius);this.center.addScaledVector(xi,i/t),this.radius+=i}return this}union(t){return t.isEmpty()?this:this.isEmpty()?(this.copy(t),this):(!0===this.center.equals(t.center)?this.radius=Math.max(this.radius,t.radius):(Bi.subVectors(t.center,this.center).setLength(t.radius),this.expandByPoint(xi.copy(t.center).add(Bi)),this.expandByPoint(xi.copy(t.center).sub(Bi))),this)}equals(t){return t.center.equals(this.center)&&t.radius===this.radius}clone(){return(new this.constructor).copy(this)}}const Ni=new ni,bi=new ni,Ei=new ni,Qi=new ni,vi=new ni,wi=new ni,Ti=new ni;class Si{constructor(t=new ni,e=new ni(0,0,-1)){this.origin=t,this.direction=e}set(t,e){return this.origin.copy(t),this.direction.copy(e),this}copy(t){return this.origin.copy(t.origin),this.direction.copy(t.direction),this}at(t,e){return e.copy(this.origin).addScaledVector(this.direction,t)}lookAt(t){return this.direction.copy(t).sub(this.origin).normalize(),this}recast(t){return this.origin.copy(this.at(t,Ni)),this}closestPointToPoint(t,e){e.subVectors(t,this.origin);const i=e.dot(this.direction);return i<0?e.copy(this.origin):e.copy(this.origin).addScaledVector(this.direction,i)}distanceToPoint(t){return Math.sqrt(this.distanceSqToPoint(t))}distanceSqToPoint(t){const e=Ni.subVectors(t,this.origin).dot(this.direction);return e<0?this.origin.distanceToSquared(t):(Ni.copy(this.origin).addScaledVector(this.direction,e),Ni.distanceToSquared(t))}distanceSqToSegment(t,e,i,n){bi.copy(t).add(e).multiplyScalar(.5),Ei.copy(e).sub(t).normalize(),Qi.copy(this.origin).sub(bi);const o=.5*t.distanceTo(e),s=-this.direction.dot(Ei),r=Qi.dot(this.direction),a=-Qi.dot(Ei),g=Qi.lengthSq(),A=Math.abs(1-s*s);let c,l,u,h;if(A>0)if(c=s*a-r,l=s*r-a,h=o*A,c>=0)if(l>=-h)if(l<=h){const t=1/A;c*=t,l*=t,u=c*(c+s*l+2*r)+l*(s*c+l+2*a)+g}else l=o,c=Math.max(0,-(s*l+r)),u=-c*c+l*(l+2*a)+g;else l=-o,c=Math.max(0,-(s*l+r)),u=-c*c+l*(l+2*a)+g;else l<=-h?(c=Math.max(0,-(-s*o+r)),l=c>0?-o:Math.min(Math.max(-o,-a),o),u=-c*c+l*(l+2*a)+g):l<=h?(c=0,l=Math.min(Math.max(