DistanceTo(t){return Math.abs(this.x-t.x)+Math.abs(this.y-t.y)}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}lerpVectors(t,e,n){return this.x=t.x+(e.x-t.x)*n,this.y=t.y+(e.y-t.y)*n,this}equals(t){return t.x===this.x&&t.y===this.y}fromArray(t,e=0){return this.x=t[e],this.y=t[e+1],this}toArray(t=[],e=0){return t[e]=this.x,t[e+1]=this.y,t}fromBufferAttribute(t,e){return this.x=t.getX(e),this.y=t.getY(e),this}rotateAround(t,e){let n=Math.cos(e),i=Math.sin(e),r=this.x-t.x,a=this.y-t.y;return this.x=r*n-a*i+t.x,this.y=r*i+a*n+t.y,this}random(){return this.x=Math.random(),this.y=Math.random(),this}*[Symbol.iterator](){yield this.x,yield this.y}},Fe=class{constructor(t=0,e=0,n=0,i=1){this.isQuaternion=!0,this._x=t,this._y=e,this._z=n,this._w=i}static slerpFlat(t,e,n,i,r,a,o){let l=n[i+0],c=n[i+1],h=n[i+2],d=n[i+3],u=r[a+0],f=r[a+1],p=r[a+2],_=r[a+3];if(d!==_||l!==u||c!==f||h!==p){let g=l*u+c*f+h*p+d*_;g<0&&(u=-u,f=-f,p=-p,_=-_,g=-g);let m=1-o;if(g<.9995){let S=Math.acos(g),b=Math.sin(S);m=Math.sin(m*S)/b,o=Math.sin(o*S)/b,l=l*m+u*o,c=c*m+f*o,h=h*m+p*o,d=d*m+_*o}else{l=l*m+u*o,c=c*m+f*o,h=h*m+p*o,d=d*m+_*o;let S=1/Math.sqrt(l*l+c*c+h*h+d*d);l*=S,c*=S,h*=S,d*=S}}t[e]=l,t[e+1]=c,t[e+2]=h,t[e+3]=d}static multiplyQuaternionsFlat(t,e,n,i,r,a){let o=n[i],l=n[i+1],c=n[i+2],h=n[i+3],d=r[a],u=r[a+1],f=r[a+2],p=r[a+3];return t[e]=o*p+h*d+l*f-c*u,t[e+1]=l*p+h*u+c*d-o*f,t[e+2]=c*p+h*f+o*u-l*d,t[e+3]=h*p-o*d-l*u-c*f,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,n,i){return this._x=t,this._y=e,this._z=n,this._w=i,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){let n=t._x,i=t._y,r=t._z,a=t._order,o=Math.cos,l=Math.sin,c=o(n/2),h=o(i/2),d=o(r/2),u=l(n/2),f=l(i/2),p=l(r/2);switch(a){case"XYZ":this._x=u*h*d+c*f*p,this._y=c*f*d-u*h*p,this._z=c*h*p+u*f*d,this._w=c*h*d-u*f*p;break;case"YXZ":this._x=u*h*d+c*f*p,this._y=c*f*d-u*h*p,this._z=c*h*p-u*f*d,this._w=c*h*d+u*f*p;break;case"ZXY":this._x=u*h*d-c*f*p,this._y=c*f*d+u*h*p,this._z=c*h*p+u*f*d,this._w=c*h*d-u*f*p;break;case"ZYX":this._x=u*h*d-c*f*p,this._y=c*f*d+u*h*p,this._z=c*h*p-u*f*d,this._w=c*h*d+u*f*p;break;case"YZX":this._x=u*h*d+c*f*p,this._y=c*f*d+u*h*p,this._z=c*h*p-u*f*d,this._w=c*h*d-u*f*p;break;case"XZY":this._x=u*h*d-c*f*p,this._y=c*f*d-u*h*p,this._z=c*h*p+u*f*d,this._w=c*h*d+u*f*p;break;default:ut("Quaternion: .setFromEuler() encountered an unknown order: "+a)}return e===!0&&this._onChangeCallback(),this}setFromAxisAngle(t,e){let n=e/2,i=Math.sin(n);return this._x=t.x*i,this._y=t.y*i,this._z=t.z*i,this._w=Math.cos(n),this._onChangeCallback(),this}setFromRotationMatrix(t){let e=t.elements,n=e[0],i=e[4],r=e[8],a=e[1],o=e[5],l=e[9],c=e[2],h=e[6],d=e[10],u=n+o+d;if(u>0){let f=.5/Math.sqrt(u+1);this._w=.25/f,this._x=(h-l)*f,this._y=(r-c)*f,this._z=(a-i)*f}else if(n>o&&n>d){let f=2*Math.sqrt(1+n-o-d);this._w=(h-l)/f,this._x=.25*f,this._y=(i+a)/f,this._z=(r+c)/f}else if(o>d){let f=2*Math.sqrt(1+o-n-d);this._w=(r-c)/f,this._x=(i+a)/f,this._y=.25*f,this._z=(l+h)/f}else{let f=2*Math.sqrt(1+d-n-o);this._w=(a-i)/f,this._x=(r+c)/f,this._y=(l+h)/f,this._z=.25*f}return this._onChangeCallback(),this}setFromUnitVectors(t,e){let n=t.dot(e)+1;return n<1e-8?(n=0,Math.abs(t.x)>Math.abs(t.z)?(this._x=-t.y,this._y=t.x,this._z=0,this._w=n):(this._x=0,this._y=-t.z,this._z=t.y,this._w=n)):(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=n),this.normalize()}angleTo(t){return 2*Math.acos(Math.abs(kt(this.dot(t),-1,1)))}rotateTowards(t,e){let n=this.angleTo(t);if(n===0)return this;let i=Math.min(1,e/n);return this.slerp(t,i),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 t===0?(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){let n=t._x,i=t._y,r=t._z,a=t._w,o=e._x,l=e._y,c=e._z,h=e._w;return this._x=n*h+a*o+i*c-r*l,this._y=i*h+a*l+r*o-n*c,this._z=r*h+a*c+n*l-i*o,this._w=a*h-n*o-i*l-r*c,this._onChangeCallback(),this}slerp(t,e){let n=t._x,i=t._y,r=t._z,a=t._w,o=this.