网页动态背景特效代码 彩色告白气球上升效果js代码

缺点：无法覆盖滚动条下方的区域，只能显示在当前窗口区域，将本代码放到你想显示的地方，显示在首页就index.php里。整个网站就放在footer.php里。

使用后需要定位和优先级排列，不然只能溢出网页。top的高度什么的需要你自己在F12里调整。代码：

<script type="text/javascript">var rough=function(){"use strict";function a(){return{LEFT:0,RIGHT:1,INTERSECTS:2,AHEAD:3,BEHIND:4,SEPARATE:5,UNDEFINED:6}}var b=Math.tan,c=Math.pow,d=Math.cos,e=Math.sin,f=Math.PI,g=Math.sqrt,h=Math.max,j=Math.min,i=Math.abs,k=Number.MAX_VALUE;class l{constructor(b,c,d,e){this.RoughSegmentRelationConst=a(),this.px1=b,this.py1=c,this.px2=d,this.py2=e,this.xi=k,this.yi=k,this.a=e-c,this.b=b-d,this.c=d*c-b*e,this._undefined=0==this.a&&0==this.b&&0==this.c}isUndefined(){return this._undefined}compare(d){if(this.isUndefined()||d.isUndefined())return this.RoughSegmentRelationConst.UNDEFINED;var e=k,f=k,g=0,l=0,m=this.a,n=this.b,b=this.c;return(1e-5<i(n)&&(e=-m/n,g=-b/n),1e-5<i(d.b)&&(f=-d.a/d.b,l=-d.c/d.b),e==k)?f==k?-b/m==-d.c/d.a?this.py1>=j(d.py1,d.py2)&&this.py1<=h(d.py1,d.py2)?(this.xi=this.px1,this.yi=this.py1,this.RoughSegmentRelationConst.INTERSECTS):this.py2>=j(d.py1,d.py2)&&this.py2<=h(d.py1,d.py2)?(this.xi=this.px2,this.yi=this.py2,this.RoughSegmentRelationConst.INTERSECTS):this.RoughSegmentRelationConst.SEPARATE:this.RoughSegmentRelationConst.SEPARATE:(this.xi=this.px1,this.yi=f*this.xi+l,-1e-5>(this.py1-this.yi)*(this.yi-this.py2)||-1e-5>(d.py1-this.yi)*(this.yi-d.py2)?this.RoughSegmentRelationConst.SEPARATE:1e-5>i(d.a)?-1e-5>(d.px1-this.xi)*(this.xi-d.px2)?this.RoughSegmentRelationConst.SEPARATE:this.RoughSegmentRelationConst.INTERSECTS:this.RoughSegmentRelationConst.INTERSECTS):f==k?(this.xi=d.px1,this.yi=e*this.xi+g,-1e-5>(d.py1-this.yi)*(this.yi-d.py2)||-1e-5>(this.py1-this.yi)*(this.yi-this.py2)?this.RoughSegmentRelationConst.SEPARATE:1e-5>i(m)?-1e-5>(this.px1-this.xi)*(this.xi-this.px2)?this.RoughSegmentRelationConst.SEPARATE:this.RoughSegmentRelationConst.INTERSECTS:this.RoughSegmentRelationConst.INTERSECTS):e==f?g==l?this.px1>=j(d.px1,d.px2)&&this.px1<=h(d.py1,d.py2)?(this.xi=this.px1,this.yi=this.py1,this.RoughSegmentRelationConst.INTERSECTS):this.px2>=j(d.px1,d.px2)&&this.px2<=h(d.px1,d.px2)?(this.xi=this.px2,this.yi=this.py2,this.RoughSegmentRelationConst.INTERSECTS):this.RoughSegmentRelationConst.SEPARATE:this.RoughSegmentRelationConst.SEPARATE:(this.xi=(l-g)/(e-f),this.yi=e*this.xi+g,-1e-5>(this.px1-this.xi)*(this.xi-this.px2)||-1e-5>(d.px1-this.xi)*(this.xi-d.px2)?this.RoughSegmentRelationConst.SEPARATE:this.RoughSegmentRelationConst.INTERSECTS)}getLength(){return 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f=0;2>f;f++)0===f?k.push({op:"move",data:[h.x,h.y]}):k.push({op:"move",data:[h.x+this._getOffset(-l[0],l[0],j),h.y+this._getOffset(-l[0],l[0],j)]}),m=[e+this._getOffset(-l[f],l[f],j),g+this._getOffset(-l[f],l[f],j)],k.push({op:"bcurveTo",data:[a+this._getOffset(-l[f],l[f],j),b+this._getOffset(-l[f],l[f],j),c+this._getOffset(-l[f],l[f],j),d+this._getOffset(-l[f],l[f],j),m[0],m[1]]});return h.setPosition(m[0],m[1]),k}_processSegment(a,b,c,d){let e=[];switch(b.key){case"M":case"m":{let c="m"===b.key;if(2<=b.data.length){let f=+b.data[0],g=+b.data[1];c&&(f+=a.x,g+=a.y);let h=1*(d.maxRandomnessOffset||0);f+=this._getOffset(-h,h,d),g+=this._getOffset(-h,h,d),a.setPosition(f,g),e.push({op:"move",data:[f,g]})}break}case"L":case"l":{let c="l"===b.key;if(2<=b.data.length){let f=+b.data[0],g=+b.data[1];c&&(f+=a.x,g+=a.y),e=e.concat(this._doubleLine(a.x,a.y,f,g,d)),a.setPosition(f,g)}break}case"H":case"h":{const c="h"===b.key;if(b.data.length){let f=+b.data[0];c&&(f+=a.x),e=e.concat(this._doubleLine(a.x,a.y,f,a.y,d)),a.setPosition(f,a.y)}break}case"V":case"v":{const c="v"===b.key;if(b.data.length){let f=+b.data[0];c&&(f+=a.y),e=e.concat(this._doubleLine(a.x,a.y,a.x,f,d)),a.setPosition(a.x,f)}break}case"Z":case"z":{a.first&&(e=e.concat(this._doubleLine(a.x,a.y,a.first[0],a.first[1],d)),a.setPosition(a.first[0],a.first[1]),a.first=null);break}case"C":case"c":{const c="c"===b.key;if(6<=b.data.length){let f=+b.data[0],g=+b.data[1],h=+b.data[2],i=+b.data[3],j=+b.data[4],k=+b.data[5];c&&(f+=a.x,h+=a.x,j+=a.x,g+=a.y,i+=a.y,k+=a.y);let l=this._bezierTo(f,g,h,i,j,k,a,d);e=e.concat(l),a.bezierReflectionPoint=[j+(j-h),k+(k-i)]}break}case"S":case"s":{const f="s"===b.key;if(4<=b.data.length){let h=+b.data[0],i=+b.data[1],j=+b.data[2],k=+b.data[3];f&&(h+=a.x,j+=a.x,i+=a.y,k+=a.y);let l=h,m=i,n=c?c.key:"";var g=null;("c"==n||"C"==n||"s"==n||"S"==n)&&(g=a.bezierReflectionPoint),g&&(l=g[0],m=g[1]);let o=this._bezierTo(l,m,h,i,j,k,a,d);e=e.concat(o),a.bezierReflectionPoint=[j+(j-h),k+(k-i)]}break}case"Q":case"q":{const c="q"===b.key;if(4<=b.data.length){let g=+b.data[0],h=+b.data[1],i=+b.data[2],j=+b.data[3];c&&(g+=a.x,i+=a.x,h+=a.y,j+=a.y);let k=1*(1+.2*d.roughness),l=1.5*(1+.22*d.roughness);e.push({op:"move",data:[a.x+this._getOffset(-k,k,d),a.y+this._getOffset(-k,k,d)]});let m=[i+this._getOffset(-k,k,d),j+this._getOffset(-k,k,d)];e.push({op:"qcurveTo",data:[g+this._getOffset(-k,k,d),h+this._getOffset(-k,k,d),m[0],m[1]]}),e.push({op:"move",data:[a.x+this._getOffset(-l,l,d),a.y+this._getOffset(-l,l,d)]}),m=[i+this._getOffset(-l,l,d),j+this._getOffset(-l,l,d)],e.push({op:"qcurveTo",data:[g+this._getOffset(-l,l,d),h+this._getOffset(-l,l,d),m[0],m[1]]}),a.setPosition(m[0],m[1]),a.quadReflectionPoint=[i+(i-g),j+(j-h)]}break}case"T":case"t":{const h="t"===b.key;if(2<=b.data.length){let i=+b.data[0],j=+b.data[1];h&&(i+=a.x,j+=a.y);let k=i,l=j,m=c?c.key:"";var g=null;("q"==m||"Q"==m||"t"==m||"T"==m)&&(g=a.quadReflectionPoint),g&&(k=g[0],l=g[1]);let n=1*(1+.2*d.roughness),o=1.5*(1+.22*d.roughness);e.push({op:"move",data:[a.x+this._getOffset(-n,n,d),a.y+this._getOffset(-n,n,d)]});let p=[i+this._getOffset(-n,n,d),j+this._getOffset(-n,n,d)];e.push({op:"qcurveTo",data:[k+this._getOffset(-n,n,d),l+this._getOffset(-n,n,d),p[0],p[1]]}),e.push({op:"move",data:[a.x+this._getOffset(-o,o,d),a.y+this._getOffset(-o,o,d)]}),p=[i+this._getOffset(-o,o,d),j+this._getOffset(-o,o,d)],e.push({op:"qcurveTo",data:[k+this._getOffset(-o,o,d),l+this._getOffset(-o,o,d),p[0],p[1]]}),a.setPosition(p[0],p[1]),a.quadReflectionPoint=[i+(i-k),j+(j-l)]}break}case"A":case"a":{const c="a"===b.key;if(7<=b.data.length){let f=+b.data[0],g=+b.data[1],h=+b.data[2],i=+b.data[3],j=+b.data[4],k=+b.data[5],l=+b.data[6];if(c&&(k+=a.x,l+=a.y),k==a.x&&l==a.y)break;if(0==f||0==g)e=e.concat(this._doubleLine(a.x,a.y,k,l,d)),a.setPosition(k,l);else{d.maxRandomnessOffset||0;for(let b=0;1>b;b++){let b=new p([a.x,a.y],[k,l],[f,g],h,!!i,!!j),c=b.getNextSegment();for(;c;){let f=this._bezierTo(c.cp1[0],c.cp1[1],c.cp2[0],c.cp2[1],c.to[0],c.to[1],a,d);e=e.concat(f),c=b.getNextSegment()}}}}break}default:}return e}_getOffset(a,b,c){return c.roughness*(Math.random()*(b-a)+a)}_affine(a,b,c,d,e,f,g){return[-c*f-d*e+c+f*a+e*b,g*(c*e-d*f)+d+-g*e*a+g*f*b]}_doubleLine(a,b,c,d,e){const f=this._line(a,b,c,d,e,!0,!1),g=this._line(a,b,c,d,e,!0,!0);return f.concat(g)}_line(a,b,d,e,f,h,i){const j=c(a-d,2)+c(b-e,2);let k=f.maxRandomnessOffset||0;100*(k*k)>j&&(k=g(j)/10);const l=k/2,m=.2+.2*Math.random();let n=f.bowing*f.maxRandomnessOffset*(e-b)/200,o=f.bowing*f.maxRandomnessOffset*(a-d)/200;n=this._getOffset(-n,n,f),o=this._getOffset(-o,o,f);let p=[];return h&&(i?p.push({op:"move",data:[a+this._getOffset(-l,l,f),b+this._getOffset(-l,l,f)]}):p.push({op:"move",data:[a+this._getOffset(-k,k,f),b+this._getOffset(-k,k,f)]})),i?p.push({op:"bcurveTo",data:[n+a+(d-a)*m+this._getOffset(-l,l,f),o+b+(e-b)*m+this._getOffset(-l,l,f),n+a+2*(d-a)*m+this._getOffset(-l,l,f),o+b+2*(e-b)*m+this._getOffset(-l,l,f),d+this._getOffset(-l,l,f),e+this._getOffset(-l,l,f)]}):p.push({op:"bcurveTo",data:[n+a+(d-a)*m+this._getOffset(-k,k,f),o+b+(e-b)*m+this._getOffset(-k,k,f),n+a+2*(d-a)*m+this._getOffset(-k,k,f),o+b+2*(e-b)*m+this._getOffset(-k,k,f),d+this._getOffset(-k,k,f),e+this._getOffset(-k,k,f)]}),p}_curve(a,c,d){const e=a.length;let f=[];if(3<e){const g=[],b=1-d.curveTightness;f.push({op:"move",data:[a[1][0],a[1][1]]});for(let c=1;c+2<e;c++){const d=a[c];g[0]=[d[0],d[1]],g[1]=[d[0]+(b*a[c+1][0]-b*a[c-1][0])/6,d[1]+(b*a[c+1][1]-b*a[c-1][1])/6],g[2]=[a[c+1][0]+(b*a[c][0]-b*a[c+2][0])/6,a[c+1][1]+(b*a[c][1]-b*a[c+2][1])/6],g[3]=[a[c+1][0],a[c+1][1]],f.push({op:"bcurveTo",data:[g[1][0],g[1][1],g[2][0],g[2][1],g[3][0],g[3][1]]})}if(c&&2===c.length){let a=d.maxRandomnessOffset;f.push({ops:"lineTo",data:[c[0]+this._getOffset(-a,a,d),c[1]+ +this._getOffset(-a,a,d)]})}}else 3===e?(f.push({op:"move",data:[a[1][0],a[1][1]]}),f.push({op:"bcurveTo",data:[a[1][0],a[1][1],a[2][0],a[2][1],a[2][0],a[2][1]]})):2===e&&(f=f.concat(this._doubleLine(a[0][0],a[0][1],a[1][0],a[1][1],d)));return f}_ellipse(a,b,c,g,h,i,j,k){const l=this._getOffset(-.5,.5,k)-f/2,m=[];m.push([this._getOffset(-i,i,k)+b+.9*g*d(l-a),this._getOffset(-i,i,k)+c+.9*h*e(l-a)]);for(let n=l;n<2*f+l-.01;n+=a)m.push([this._getOffset(-i,i,k)+b+g*d(n),this._getOffset(-i,i,k)+c+h*e(n)]);return m.push([this._getOffset(-i,i,k)+b+g*d(l+2*f+.5*j),this._getOffset(-i,i,k)+c+h*e(l+2*f+.5*j)]),m.push([this._getOffset(-i,i,k)+b+.98*g*d(l+j),this._getOffset(-i,i,k)+c+.98*h*e(l+j)]),m.push([this._getOffset(-i,i,k)+b+.9*g*d(l+.5*j),this._getOffset(-i,i,k)+c+.9*h*e(l+.5*j)]),this._curve(m,null,k)}_curveWithOffset(a,b,c){const d=[[a[0][0]+this._getOffset(-b,b,c),a[0][1]+this._getOffset(-b,b,c)],[a[0][0]+this._getOffset(-b,b,c),a[0][1]+this._getOffset(-b,b,c)]];for(let e=1;e<a.length;e++)d.push([a[e][0]+this._getOffset(-b,b,c),a[e][1]+this._getOffset(-b,b,c)]),e===a.length-1&&d.push([a[e][0]+this._getOffset(-b,b,c),a[e][1]+this._getOffset(-b,b,c)]);return this._curve(d,null,c)}_arc(a,b,c,f,g,h,i,j,k){const l=h+this._getOffset(-.1,.1,k),m=[];m.push([this._getOffset(-j,j,k)+b+.9*f*d(l-a),this._getOffset(-j,j,k)+c+.9*g*e(l-a)]);for(let n=l;n<=i;n+=a)m.push([this._getOffset(-j,j,k)+b+f*d(n),this._getOffset(-j,j,k)+c+g*e(n)]);return m.push([b+f*d(i),c+g*e(i)]),m.push([b+f*d(i),c+g*e(i)]),this._curve(m,null,k)}_getIntersectingLines(b,c,d){let e=[];for(var f=new l(b[0],b[1],b[2],b[3]),g=0;g<c.length;g++){let b=new l(c[g],d[g],c[(g+1)%c.length],d[(g+1)%c.length]);f.compare(b)==a().INTERSECTS&&e.push([f.xi,f.yi])}return e}}self._roughScript=self.document&&self.document.currentScript&&self.document.currentScript.src;class t{constructor(a,b){this.config=a||{},this.canvas=b,this.defaultOptions={maxRandomnessOffset:2,roughness:1,bowing:1,stroke:"#000",strokeWidth:1,curveTightness:0,curveStepCount:9,fill:null,fillStyle:"hachure",fillWeight:-1,hachureAngle:-41,hachureGap:-1},this.config.options&&(this.defaultOptions=this._options(this.config.options))}_options(a){return a?Object.assign({},this.defaultOptions,a):this.defaultOptions}_drawable(a,b,c){return{shape:a,sets:b||[],options:c||this.defaultOptions}}get lib(){if(!this._renderer)if(self&&self.workly&&this.config.async&&!this.config.noWorker){const a=Function.prototype.toString,b=this.config.worklyURL||"https://www.h5bk.com",c=this.config.roughURL||self._roughScript;if(c&&b){let a=`importScripts('${b}', '${c}');\nworkly.expose(self.rough.createRenderer());`,d=URL.createObjectURL(new Blob([a]));this._renderer=workly.proxy(d)}else this._renderer=new s}else this._renderer=new s;return this._renderer}line(a,b,c,d,e){const f=this._options(e);return this._drawable("line",[this.lib.line(a,b,c,d,f)],f)}rectangle(a,b,c,d,e){const f=this._options(e),g=[];if(f.fill){const e=[a,a+c,a+c,a],h=[b,b,b+d,b+d];"solid"===f.fillStyle?g.push(this.lib.solidFillShape(e,h,f)):g.push(this.lib.hachureFillShape(e,h,f))}return g.push(this.lib.rectangle(a,b,c,d,f)),this._drawable("rectangle",g,f)}ellipse(a,b,c,d,e){const f=this._options(e),g=[];if(f.fill)if("solid"===f.fillStyle){const e=this.lib.ellipse(a,b,c,d,f);e.type="fillPath",g.push(e)}else g.push(this.lib.hachureFillEllipse(a,b,c,d,f));return g.push(this.lib.ellipse(a,b,c,d,f)),this._drawable("ellipse",g,f)}circle(a,b,c,d){let e=this.ellipse(a,b,c,c,d);return e.shape="circle",e}linearPath(a,b){const c=this._options(b);return this._drawable("linearPath",[this.lib.linearPath(a,!1,c)],c)}polygon(a,b){const c=this._options(b),d=[];if(c.fill){let b=[],e=[];for(let c of a)b.push(c[0]),e.push(c[1]);"solid"===c.fillStyle?d.push(this.lib.solidFillShape(b,e,c)):d.push(this.lib.hachureFillShape(b,e,c))}return d.push(this.lib.linearPath(a,!0,c)),this._drawable("polygon",d,c)}arc(a,b,c,d,e,f,g,h){const i=this._options(h),j=[];if(g&&i.fill)if("solid"===i.fillStyle){let g=this.lib.arc(a,b,c,d,e,f,!0,!1,i);g.type="fillPath",j.push(g)}else j.push(this.lib.hachureFillArc(a,b,c,d,e,f,i));return j.push(this.lib.arc(a,b,c,d,e,f,g,!0,i)),this._drawable("arc",j,i)}curve(a,b){const c=this._options(b);return this._drawable("curve",[this.lib.curve(a,c)],c)}path(a,b){const c=this._options(b),e=[];if(!a)return this._drawable("path",e,c);if(c.fill)if("solid"===c.fillStyle){e.push({type:"path2Dfill",path:a})}else{const b=this._computePathSize(a);let d=[0,b[0],b[0],0],f=[0,0,b[1],b[1]],g=this.lib.hachureFillShape(d,f,c);g.type="path2Dpattern",g.size=b,g.path=a,e.push(g)}return e.push(this.lib.svgPath(a,c)),this._drawable("path",e,c)}_computePathSize(a){let b=[0,0];if(self.document)try{const c="http://www.w3.org/2000/svg";let d=self.document.createElementNS(c,"svg");d.setAttribute("width","0"),d.setAttribute("height","0");let e=self.document.createElementNS(c,"path");e.setAttribute("d",a),d.appendChild(e),self.document.body.appendChild(d);let f=e.getBBox();f&&(b[0]=f.width||0,b[1]=f.height||0),self.document.body.removeChild(d)}catch(a){}return b[0]*b[1]||(b=[this.canvas.width||100,this.canvas.height||100]),b[0]=j(4*b[0],this.canvas.width),b[1]=j(4*b[1],this.canvas.height),b}}class u extends t{async line(a,b,c,d,e){const f=this._options(e);return this._drawable("line",[await this.lib.line(a,b,c,d,f)],f)}async rectangle(a,b,c,d,e){const f=this._options(e),g=[];if(f.fill){const e=[a,a+c,a+c,a],h=[b,b,b+d,b+d];"solid"===f.fillStyle?g.push((await this.lib.solidFillShape(e,h,f))):g.push((await this.lib.hachureFillShape(e,h,f)))}return g.push((await this.lib.rectangle(a,b,c,d,f))),this._drawable("rectangle",g,f)}async ellipse(a,b,c,d,e){const f=this._options(e),g=[];if(f.fill)if("solid"===f.fillStyle){const e=await this.lib.ellipse(a,b,c,d,f);e.type="fillPath",g.push(e)}else g.push((await this.lib.hachureFillEllipse(a,b,c,d,f)));return g.push((await this.lib.ellipse(a,b,c,d,f))),this._drawable("ellipse",g,f)}async circle(a,b,c,d){let e=await this.ellipse(a,b,c,c,d);return e.shape="circle",e}async linearPath(a,b){const c=this._options(b);return this._drawable("linearPath",[await this.lib.linearPath(a,!1,c)],c)}async polygon(a,b){const c=this._options(b),d=[];if(c.fill){let b=[],e=[];for(let c of a)b.push(c[0]),e.push(c[1]);"solid"===c.fillStyle?d.push((await this.lib.solidFillShape(b,e,c))):d.push((await this.lib.hachureFillShape(b,e,c)))}return d.push((await this.lib.linearPath(a,!0,c))),this._drawable("polygon",d,c)}async arc(a,b,c,d,e,f,g,h){const i=this._options(h),j=[];if(g&&i.fill)if("solid"===i.fillStyle){let g=await this.lib.arc(a,b,c,d,e,f,!0,!1,i);g.type="fillPath",j.push(g)}else j.push((await this.lib.hachureFillArc(a,b,c,d,e,f,i)));return j.push((await this.lib.arc(a,b,c,d,e,f,g,!0,i))),this._drawable("arc",j,i)}async curve(a,b){const c=this._options(b);return this._drawable("curve",[await this.lib.curve(a,c)],c)}async path(a,b){const c=this._options(b),e=[];if(!a)return this._drawable("path",e,c);if(c.fill)if("solid"===c.fillStyle){e.push({type:"path2Dfill",path:a})}else{const b=this._computePathSize(a);let d=[0,b[0],b[0],0],f=[0,0,b[1],b[1]],g=await this.lib.hachureFillShape(d,f,c);g.type="path2Dpattern",g.size=b,g.path=a,e.push(g)}return e.push((await this.lib.svgPath(a,c))),this._drawable("path",e,c)}}class v{constructor(a,b){this.canvas=a,this.ctx=this.canvas.getContext("2d"),this._init(b)}_init(a){this.gen=new t(a,this.canvas)}get generator(){return this.gen}static createRenderer(){return new s}line(a,b,c,e,f){let g=this.gen.line(a,b,c,e,f);return this.draw(g),g}rectangle(a,b,c,e,f){let g=this.gen.rectangle(a,b,c,e,f);return this.draw(g),g}ellipse(a,b,c,e,f){let g=this.gen.ellipse(a,b,c,e,f);return this.draw(g),g}circle(a,b,c,e){let f=this.gen.circle(a,b,c,e);return this.draw(f),f}linearPath(a,b){let c=this.gen.linearPath(a,b);return this.draw(c),c}polygon(a,b){let c=this.gen.polygon(a,b);return this.draw(c),c}arc(a,b,c,e,f,g,h,i){let j=this.gen.arc(a,b,c,e,f,g,h,i);return this.draw(j),j}curve(a,b){let c=this.gen.curve(a,b);return this.draw(c),c}path(a,b){let c=this.gen.path(a,b);return this.draw(c),c}draw(a){let b=a.sets||[],c=a.options||this.gen.defaultOptions,d=this.ctx;for(let e of b)switch(e.type){case"path":d.save(),d.strokeStyle=c.stroke,d.lineWidth=c.strokeWidth,this._drawToContext(d,e),d.restore();break;case"fillPath":d.save(),d.fillStyle=c.fill,this._drawToContext(d,e,c),d.restore();break;case"fillSketch":this._fillSketch(d,e,c);break;case"path2Dfill":{this.ctx.save(),this.ctx.fillStyle=c.fill;let a=new Path2D(e.path);this.ctx.fill(a),this.ctx.restore();break}case"path2Dpattern":{let a=e.size,b=document.createElement("canvas");b.width=a[0],b.height=a[1],this._fillSketch(b.getContext("2d"),e,c),this.ctx.save(),this.ctx.fillStyle=this.ctx.createPattern(b,"repeat");let d=new Path2D(e.path);this.ctx.fill(d),this.ctx.restore();break}}}_fillSketch(a,b,c){let d=c.fillWeight;0>d&&(d=c.strokeWidth/2),a.save(),a.strokeStyle=c.fill,a.lineWidth=d,this._drawToContext(a,b),a.restore()}_drawToContext(a,b){a.beginPath();for(let c of b.ops){const b=c.data;switch(c.op){case"move":a.moveTo(b[0],b[1]);break;case"bcurveTo":a.bezierCurveTo(b[0],b[1],b[2],b[3],b[4],b[5]);break;case"qcurveTo":a.quadraticCurveTo(b[0],b[1],b[2],b[3]);break;case"lineTo":a.lineTo(b[0],b[1]);}}"fillPath"===b.type?a.fill():a.stroke()}}class w extends v{_init(a){this.gen=new u(a,this.canvas)}async line(a,b,c,e,f){let g=await this.gen.line(a,b,c,e,f);return this.draw(g),g}async rectangle(a,b,c,e,f){let g=await this.gen.rectangle(a,b,c,e,f);return this.draw(g),g}async ellipse(a,b,c,e,f){let g=await this.gen.ellipse(a,b,c,e,f);return this.draw(g),g}async circle(a,b,c,e){let f=await this.gen.circle(a,b,c,e);return this.draw(f),f}async linearPath(a,b){let c=await this.gen.linearPath(a,b);return this.draw(c),c}async polygon(a,b){let c=await this.gen.polygon(a,b);return this.draw(c),c}async arc(a,b,c,e,f,g,h,i){let j=await this.gen.arc(a,b,c,e,f,g,h,i);return this.draw(j),j}async curve(a,b){let c=await this.gen.curve(a,b);return this.draw(c),c}async path(a,b){let c=await this.gen.path(a,b);return this.draw(c),c}}var x={canvas(a,b){return b&&b.async?new w(a,b):new v(a,b)},createRenderer(){return v.createRenderer()},generator(a,b){return a&&a.async?new u(a,b):new t(a,b)}};return x}();</script><script type="text/javascript">var extend = function extend(base) {  for (var _len = arguments.length, extensions = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {    extensions[_key - 1] = arguments[_key];  }  return Object.assign.apply(Object, [{}, base].concat(extensions));};var parseColor = function parseColor(_ref) {  var h = _ref.h,      s = _ref.s,      l = _ref.l,      a = _ref.a;  return 'hsla(' + h + ',' + s + '%,' + l + '%,' + a + ')';};var Color = extend.bind(null, { h: 0, s: 100, l: 100, a: 1 });var Vector = extend.bind(null, { x: 0, y: 0 });var Particle = extend.bind(null, {  pos: Vector(),  vel: Vector(),  angle: 0,  speed: 0,  radius: 0,  rotation: 0,  color: Color()});var colors = [Color({ h: 20, s: 100, l: 50 }), Color({ h: 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