博客样式(动态背景线条跟随鼠标移动)

╰+哭是因爲堅強的太久メ 2022-01-05 02:34 343阅读 0赞

**代码(将代码添加至页脚html板块):**

1 
     2 
     3 <script>
     4 
     5 !function(){
     6 
     7 function n(n,e,t){
     8 
     9 return n.getAttribute(e)||t
    10 
    11 }
    12 
    13 function e(n){
    14 
    15 return document.getElementsByTagName(n)
    16 
    17 }
    18 
    19 function t(){
    20 
    21 var t=e("script"),o=t.length,i=t[o-1];
    22 
    23 return{
    24 
    25 l:o,z:n(i,"zIndex",-1),o:n(i,"opacity",.5),c:n(i,"color","0,0,0"),n:n(i,"count",99)
    26 
    27 }
    28 
    29 }
    30 
    31 function o(){
    32 
    33 a=m.width=window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth,
    34 
    35 c=m.height=window.innerHeight||document.documentElement.clientHeight||document.body.clientHeight
    36 
    37 }
    38 
    39 function i(){
    40 
    41 r.clearRect(0,0,a,c);
    42 
    43 var n,e,t,o,m,l;
    44 
    45 s.forEach(function(i,x){
    46 
    47 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-.5,i.y-.5,1,1),e=x+1;e<u.length;e++)n=u[e],
    48 
    49 null!==n.x&&null!==n.y&&(o=i.x-n.x,m=i.y-n.y,
    50 
    51 l=o*o+m*m,l<n.max&&(n===y&&l>=n.max/2&&(i.x-=.03*o,i.y-=.03*m),
    52 
    53 t=(n.max-l)/n.max,r.beginPath(),r.lineWidth=t/2,r.strokeStyle="rgba("+d.c+","+(t+.2)+")",r.moveTo(i.x,i.y),r.lineTo(n.x,n.y),r.stroke()))
    54 
    55 }),
    56 
    57 x(i)
    58 
    59 }
    60 
    61 var a,c,u,m=document.createElement("canvas"),
    62 
    63 d=t(),l="c_n"+d.l,r=m.getContext("2d"),
    64 
    65 x=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||
    66 
    67 function(n){
    68 
    69 window.setTimeout(n,1e3/45)
    70 
    71 },
    72 
    73 w=Math.random,y={x:null,y:null,max:2e4};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,
    74 
    75 window.onmousemove=function(n){
    76 
    77 n=n||window.event,y.x=n.clientX,y.y=n.clientY
    78 
    79 },
    80 
    81 window.onmouseout=function(){
    82 
    83 y.x=null,y.y=null
    84 
    85 };
    86 
    87 for(var s=[],f=0;d.n>f;f++){
    88 
    89 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:6e3})
    90 
    91 }
    92 
    93 u=s.concat([y]),
    94 
    95 setTimeout(function(){i()},100)
    96 
    97 }();
    98 
    99 </script>

转载于:https://www.cnblogs.com/Trojan00/p/9497509.html