<!-- CODERS100 · part 44 -->
_z}set z(t){this._z=t,this._onChangeCallback()}get order(){return this._order}set order(t){this._order=t,this._onChangeCallback()}set(t,e,n,i){return this._x=t,this._y=e,this._z=n,this._order=i||this._order,this._onChangeCallback(),this}clone(){return new this.constructor(this._x,this._y,this._z,this._order)}copy(t){return this._x=t._x,this._y=t._y,this._z=t._z,this._order=t._order,this._onChangeCallback(),this}setFromRotationMatrix(t,e,n){const i=t.elements,r=i[0],s=i[4],a=i[8],o=i[1],l=i[5],c=i[9],h=i[2],u=i[6],d=i[10];switch(e=e||this._order){case"XYZ":this._y=Math.asin(ht(a,-1,1)),Math.abs(a)<.9999999?(this._x=Math.atan2(-c,d),this._z=Math.atan2(-s,r)):(this._x=Math.atan2(u,l),this._z=0);break;case"YXZ":this._x=Math.asin(-ht(c,-1,1)),Math.abs(c)<.9999999?(this._y=Math.atan2(a,d),this._z=Math.atan2(o,l)):(this._y=Math.atan2(-h,r),this._z=0);break;case"ZXY":this._x=Math.asin(ht(u,-1,1)),Math.abs(u)<.9999999?(this._y=Math.atan2(-h,d),this._z=Math.atan2(-s,l)):(this._y=0,this._z=Math.atan2(o,r));break;case"ZYX":this._y=Math.asin(-ht(h,-1,1)),Math.abs(h)<.9999999?(this._x=Math.atan2(u,d),this._z=Math.atan2(o,r)):(this._x=0,this._z=Math.atan2(-s,l));break;case"YZX":this._z=Math.asin(ht(o,-1,1)),Math.abs(o)<.9999999?(this._x=Math.atan2(-c,l),this._y=Math.atan2(-h,r)):(this._x=0,this._y=Math.atan2(a,d));break;case"XZY":this._z=Math.asin(-ht(s,-1,1)),Math.abs(s)<.9999999?(this._x=Math.atan2(u,l),this._y=Math.atan2(a,r)):(this._x=Math.atan2(-c,d),this._y=0);break;default:console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)}return this._order=e,!1!==n&&this._onChangeCallback(),this}setFromQuaternion(t,e,n){return pe.makeRotationFromQuaternion(t),this.setFromRotationMatrix(pe,e,n)}setFromVector3(t,e){return this.set(t.x,t.y,t.z,e||this._order)}reorder(t){return me.setFromEuler(this),this.setFromQuaternion(me,t)}equals(t){return t._x===this._x&&t._y===this._y&&t._z===this._z&&t._order===this._order}fromArray(t){return this._x=t[0],this._y=t[1],this._z=t[2],void 0!==t[3]&&(this._order=t[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._order,t}toVector3(t){return t?t.set(this._x,this._y,this._z):new Lt(this._x,this._y,this._z)}_onChange(t){return this._onChangeCallback=t,this}_onChangeCallback(){}}fe.prototype.isEuler=!0,fe.DefaultOrder="XYZ",fe.RotationOrders=["XYZ","YZX","ZXY","XZY","YXZ","ZYX"];class ge{constructor(){this.mask=1}set(t){this.mask=1<<t|0}enable(t){this.mask|=1<<t|0}enableAll(){this.mask=-1}toggle(t){this.mask^=1<<t|0}disable(t){this.mask&=~(1<<t|0)}disableAll(){this.mask=0}test(t){return 0!=(this.mask&t.mask)}}let ve=0;const ye=new Lt,xe=new At,_e=new se,we=new Lt,be=new Lt,Me=new Lt,Se=new At,Te=new Lt(1,0,0),Ee=new Lt(0,1,0),Ae=new Lt(0,0,1),Le={type:"added"},Re={type:"removed"};class Ce extends rt{constructor(){super(),Object.defineProperty(this,"id",{value:ve++}),this.uuid=ct(),this.name="",this.type="Object3D",this.parent=null,this.children=[],this.up=Ce.DefaultUp.clone();const t=new Lt,e=new fe,n=new At,i=new Lt(1,1,1);e._onChange((function(){n.setFromEuler(e,!1)})),n._onChange((function(){e.setFromQuaternion(n,void 0,!1)})),Object.defineProperties(this,{position:{configurable:!0,enumerable:!0,value:t},rotation:{configurable:!0,enumerable:!0,value:e},quaternion:{configurable:!0,enumerable:!0,value:n},scale:{configurable:!0,enumerable:!0,value:i},modelViewMatrix:{value:new se},normalMatrix:{value:new yt}}),this.matrix=new se,this.matrixWorld=new se,this.matrixAutoUpdate=Ce.DefaultMatrixAutoUpdate,this.matrixWorldNeedsUpdate=!1,this.layers=new ge,this.visible=!0,this.castShadow=!1,this.receiveShadow=!1,this.frustumCulled=!0,this.renderOrder=0,this.animations=[],this.userData={}}onBeforeRender(){}onAfterRender(){}applyMatrix4(t){this.matrixAutoUpdate&&this.updateMatrix(),this.matrix.premultiply(t),this.matrix.decompose(this.position,this.quaternion,this.scale)}applyQuaternion(t){return this.quaternion.premultiply(t),this}setRotationFromAxisAngle(t,e){this.quaternion.setFromAxisAngle(t,e)}setRotationFromEuler(t){this.quaternion.setFromEuler(t,!0)}setRotationFromMatrix(t){this.quaternion.setFromRotationMatrix(t)}setRotationFromQuaternion(t){this.quaternion.copy(t)}rotateOnAxis(t,e){return xe.setFromAxisAngle(t,e),this.quaternion.multiply(xe),this}rotateOnWorldAxis(t,e){return xe.setFromAxisAngle(t,e),this.quaternion.premultiply(xe),this}rotateX(t){return this.rotateOnAxis(Te,t)}rotateY(t){return this.rotateOnAxis(Ee,t)}rotateZ(t){return this.rotateOnAxis(Ae,t)}translateOnAxis(t,e){return ye.copy(t).applyQuaternion(this.quaternion),this.position.add(ye.multiplyScalar(e)),this}translateX(t){return this.translateOnAxis(Te,t)}translateY(t){return this.translateOnAxis(Ee,t)}translateZ(t){return this.translateOnAxis(Ae,t)}localToWorld(t){return t.applyMatrix4(this.matrixWorld)}worldToLocal(t){return t.applyMatrix4(_e.copy(this.matrixWorld).invert())}lookAt(t,e,n){t.isVector3?