炒油菜花 發表於 2021-1-20 08:36:00

HTML5飘动爱心心形动画

<p>源码简介:</p>
<p>HTML5 飘动爱心心形动画,鼠标点击停止飘动,再次点击继续飘动效果</p>
<p>代码如下:</p>
<div class="cnblogs_code">
<pre><span style="color: rgba(0, 128, 128, 1)"> 1</span> <span style="color: rgba(0, 0, 255, 1)">&lt;!</span><span style="color: rgba(255, 0, 255, 1)">doctype html</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)"> 2</span> <span style="color: rgba(0, 0, 255, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">html</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
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<span style="color: rgba(0, 128, 128, 1)"> 5</span> <span style="color: rgba(0, 0, 255, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">meta </span><span style="color: rgba(255, 0, 0, 1)">charset</span><span style="color: rgba(0, 0, 255, 1)">="UTF-8"</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>   
<span style="color: rgba(0, 128, 128, 1)"> 6</span> <span style="color: rgba(0, 0, 255, 1)">&lt;/</span><span style="color: rgba(128, 0, 0, 1)">head</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>   
<span style="color: rgba(0, 128, 128, 1)"> 7</span> <span style="color: rgba(0, 0, 255, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">body</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>   
<span style="color: rgba(0, 128, 128, 1)"> 8</span>   <span style="color: rgba(0, 0, 255, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">canvas </span><span style="color: rgba(255, 0, 0, 1)">id</span><span style="color: rgba(0, 0, 255, 1)">="c"</span><span style="color: rgba(0, 0, 255, 1)">&gt;&lt;/</span><span style="color: rgba(128, 0, 0, 1)">canvas</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>   
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</span><span style="color: rgba(0, 128, 128, 1)">11</span>         <span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)">var</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)"> c </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">=</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)"> document.getElementsByTagName(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">canvas</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">)[</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">0</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">];
</span><span style="color: rgba(0, 128, 128, 1)">12</span>         <span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 255, 1)">var</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)"> a </span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">=</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)"> c.getContext(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">2d</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">);
</span><span style="color: rgba(0, 128, 128, 1)">13</span>   <span style="color: rgba(0, 0, 255, 1)">&lt;/</span><span style="color: rgba(128, 0, 0, 1)">script</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)">14</span>   <span style="color: rgba(0, 0, 255, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">script</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)">15</span> <span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">    eval(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">var M=Math,n=M.pow,i,E=2,F="rgba(233,61,109,",d=M.cos,z=M.sin,L=1,u=30,W=window,w=c.width=W.innerWidth,h=c.height=W.innerHeight,r=_1){return M.random()*2-1},y="px Arial",v="飘",q="♥",X=w/2,Y=h/2,T=4,p=_1){var e=this;e.g=_1){e.x=X;e.y=Y;e.k=0;e.l=0;e.t=M.random()*19000;e.c=e.t};e.d=_1){a.fillStyle=F+(e.c/e.t)+")";a.fillText(q,e.x,e.y);e.c-=50;e.x+=e.k;e.y+=e.l;e.k=e.k+r();e.l=e.l+r();if(e.c&lt;0||e.x&gt;w||e.x&lt;0||e.y&gt;h||e.y&lt;0){e.g()}};e.g()},A,B;a.textAlign="center";a.strokeStyle="#000";a.lineWidth=2;for(i=0;i&lt;350;i++){M=new p()}setInterval(_1){a.clearRect(0,0,w,h);a.font=u+y;X=(w/6*n(z(T),3)+w/2);Y=0.8*(-h/40*(13*d(T)-5*d(2*T)-2*d(3*T)-d(4*T))+h/2.3);T+=(z(T)+3)/99;for(i=0;i&lt;350;i++){with(M){A=(x/w-0.5)*2,B=-(y/h-0.5);if(L&amp;&amp;(A*A+2*n((B-0.5*n(M.abs(A),0.5)),2))&gt;0.11){k=l=0}d()}}a.font=120+y;if(E&gt;0.1){if(E&lt;1){a.fillStyle=F+E+")";a.fillText("Click",w/2,h/2)}E-=0.02}a.fillStyle="#E93D6D";a.fillText(v,X,Y+u);a.strokeText(v,X,Y+u)},50);b.bgColor="#FFEFF2";c.onmouseup=_1){L=(L)?0:1}</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">.replace(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">/</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">(_1)</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">/</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">g,</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">function(</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">'</span><span style="background-color: rgba(245, 245, 245, 1); color: rgba(0, 0, 0, 1)">))
</span><span style="color: rgba(0, 128, 128, 1)">16</span>   <span style="color: rgba(0, 0, 255, 1)">&lt;/</span><span style="color: rgba(128, 0, 0, 1)">script</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)">17</span>   <span style="color: rgba(0, 0, 255, 1)">&lt;</span><span style="color: rgba(128, 0, 0, 1)">div </span><span style="color: rgba(255, 0, 0, 1)">style</span><span style="color: rgba(0, 0, 255, 1)">="text-align:center;"</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)">18</span> <span style="color: rgba(0, 0, 255, 1)">&lt;/</span><span style="color: rgba(128, 0, 0, 1)">div</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)">19</span> <span style="color: rgba(0, 0, 255, 1)">&lt;/</span><span style="color: rgba(128, 0, 0, 1)">body</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span>
<span style="color: rgba(0, 128, 128, 1)">20</span> <span style="color: rgba(0, 0, 255, 1)">&lt;/</span><span style="color: rgba(128, 0, 0, 1)">html</span><span style="color: rgba(0, 0, 255, 1)">&gt;</span></pre>
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来源:https://www.cnblogs.com/ypha/p/14301054.html
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