2 lines
964 B
JavaScript
2 lines
964 B
JavaScript
(()=>{var s="#dce0e8",l="#45475a",R=1*devicePixelRatio,i=document.getElementById("bg"),n=i.getContext("2d"),r=0,h=0,a="#dce0e8";function w(e,t){let o=window.devicePixelRatio||1;i.style.width=`${e}px`,i.style.height=`${t}px`,i.width=e*o,i.height=t*o}function f(){n.clearRect(0,0,i.width,i.height)}function m(e,t){let o=Math.sqrt((e-r)**2+(t-h)**2),d=100,v=R+2*devicePixelRatio*((d-Math.min(o,d))/d);n.beginPath(),n.arc(e,t,v,0,2*Math.PI,!1),n.fillStyle=a,n.fill()}function c(){f();for(let e=0;e<i.width;e+=10*devicePixelRatio)for(let t=0;t<i.height;t+=10*devicePixelRatio)m(e,t)}window.addEventListener("resize",()=>{w(window.innerWidth,window.innerHeight),c()});window.addEventListener("mousemove",e=>{r=e.clientX*devicePixelRatio,h=e.clientY*devicePixelRatio,c()});if(window.matchMedia){let e=window.matchMedia("(prefers-color-scheme: dark)");a=e.matches?l:s,e.addEventListener("change",t=>{a=t.matches?l:s,c()})}w(window.innerWidth,window.innerHeight);c();})();
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