hexo-theme-ayer/source/js/dz.js
2020-06-02 22:05:48 +08:00

1 line
2.1 KiB
JavaScript

const isMobile={Android:function(){return navigator.userAgent.match(/Android/i)},BlackBerry:function(){return navigator.userAgent.match(/BlackBerry/i)},iOS:function(){return navigator.userAgent.match(/iPhone|iPad|iPod/i)},Opera:function(){return navigator.userAgent.match(/Opera Mini/i)},Windows:function(){return navigator.userAgent.match(/IEMobile/i)},any:function(){return(isMobile.Android()||isMobile.BlackBerry()||isMobile.iOS()||isMobile.Opera()||isMobile.Windows())}};function dz(){function n(n,e,t){return n.getAttribute(e)||t}function e(n){return document.getElementsByTagName(n)}function t(){var t=e("script"),o=t.length,i=t[o-1];return{l:o,z:n(i,"zIndex",-1),o:n(i,"opacity",0.5),c:n(i,"color","0,0,0"),n:n(i,"count",99)}}function o(){a=m.width=window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth,c=m.height=window.innerHeight||document.documentElement.clientHeight||document.body.clientHeight}function i(){r.clearRect(0,0,a,c);var n,e,t,o,m,l;s.forEach(function(i,x){for(i.x+=i.xa,i.y+=i.ya,i.xa*=i.x>a||i.x<0?-1:1,i.ya*=i.y>c||i.y<0?-1:1,r.fillRect(i.x-0.5,i.y-0.5,1,1),e=x+1;e<u.length;e++){n=u[e],null!==n.x&&null!==n.y&&(o=i.x-n.x,m=i.y-n.y,l=o*o+m*m,l<n.max&&(n===y&&l>=n.max/2&&(i.x-=0.03*o,i.y-=0.03*m),t=(n.max-l)/n.max,r.beginPath(),r.lineWidth=t/2,r.strokeStyle="rgba("+d.c+","+(t+0.2)+")",r.moveTo(i.x,i.y),r.lineTo(n.x,n.y),r.stroke()))}}),x(i)}var a,c,u,m=document.createElement("canvas"),d=t(),l="c_n"+d.l,r=m.getContext("2d"),x=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(n){window.setTimeout(n,1000/45)},w=Math.random,y={x:null,y:null,max:20000};m.id=l,m.style.cssText="position:fixed;top:0;left:0;z-index:"+d.z+";opacity:"+d.o,e("body")[0].appendChild(m),o(),window.onresize=o,window.onmousemove=function(n){n=n||window.event,y.x=n.clientX,y.y=n.clientY},window.onmouseout=function(){y.x=null,y.y=null};for(var s=[],f=0;d.n>f;f++){var h=w()*a,g=w()*c,v=2*w()-1,p=2*w()-1;s.push({x:h,y:g,xa:v,ya:p,max:6000})}u=s.concat([y]),setTimeout(function(){i()},100)}!isMobile.any()&&dz();