表白神奇--动态心跳可加名字(小白的福音)

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我是靠谱客的博主沉静心锁，最近开发中收集的这篇文章主要介绍表白神奇--动态心跳可加名字(小白的福音)，觉得挺不错的，现在分享给大家，希望可以做个参考。
概述

我们使用时可以先把代码复制出来存为txt文件，将名字‘吴彦祖’替换成想要修改的名字，再把文件拓展名改成 .html即可。
<!DOCTYPE html>

<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

  <title>???? Love you ???? My Dear 吴彦祖????</title>
  <style type="text/css">
    body {
      margin: 0;
      overflow: hidden;
      background: #000;
    }
    canvas {
      position: absolute;
      width: 100%;
      height: 100%;
    }
    #pinkboard {
      animation: anim 1.5s ease-in-out infinite;
      -webkit-animation: anim 1.5s ease-in-out infinite;
      -o-animation: anim 1.5s ease-in-out infinite;
      -moz-animation: anim 1.5s ease-in-out infinite;
    }
    @keyframes anim {
      0% {
        transform: scale(0.8);
      }
      25% {
        transform: scale(0.7);
      }
      50% {
        transform: scale(1);
      }
      75% {
        transform: scale(0.7);
      }
      100% {
        transform: scale(0.8);
      }
    }
    @-webkit-keyframes anim {
      0% {
        -webkit-transform: scale(0.8);
      }
      25% {
        -webkit-transform: scale(0.7);
      }
      50% {
        -webkit-transform: scale(1);
      }
      75% {
        -webkit-transform: scale(0.7);
      }
      100% {
        -webkit-transform: scale(0.8);
      }
    }
    @-o-keyframes anim {
      0% {
        -o-transform: scale(0.8);
      }
      25% {
        -o-transform: scale(0.7);
      }
      50% {
        -o-transform: scale(1);
      }
      75% {
        -o-transform: scale(0.7);
      }
      100% {
        -o-transform: scale(0.8);
      }
    }
    @-moz-keyframes anim {
      0% {
        -moz-transform: scale(0.8);
      }
      25% {
        -moz-transform: scale(0.7);
      }
      50% {
        -moz-transform: scale(1);
      }
      75% {
        -moz-transform: scale(0.7);
      }
      100% {
        -moz-transform: scale(0.8);
      }
    }
    #name {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      margin-top: -20px;
      font-size: 46px;
      color: #ea80b0;
    }
  </style>
</head>
<body>
<canvas id="pinkboard" width="1920" height="947"></canvas>
<!-- <div id="name">吴彦祖???? ❤️</div> -->
<canvas id="canvas" width="1920" height="947"></canvas>

<script type="text/javascript">
  const colors = [
    "#eec996",
    "#8fb7d3",
    "#b7d4c6",
    "#c3bedd",
    "#f1d5e4",
    "#cae1d3",
    "#f3c89d",
    "#d0b0c3",
    "#819d53",
    "#c99294",
    "#cec884",
    "#ff8e70",
    "#e0a111",
    "#fffdf6",
    "#cbd7ac",
    "#e8c6c0",
    "#dc9898",
    "#ecc8ba",
  ]; //用来设置的颜色
  var canvas = document.getElementById("canvas");
  var ctx = canvas.getContext("2d");
  let count = 1;

  var ww = window.innerWidth;
  var wh = window.innerHeight;

  var hearts = [];

  function init() {
    requestAnimationFrame(render);
    canvas.width = ww;
    canvas.height = wh;
    for (var i = 0; i < 100; i++) {
      hearts.push(new Heart());
    }
  }

  function Heart() {
    this.x = Math.random() * ww;
    this.y = Math.random() * wh;
    this.opacity = Math.random() * 0.5 + 0.5;
    this.vel = {
      x: (Math.random() - 0.5) * 4,
      y: (Math.random() - 0.5) * 4,
    };
    this.targetScale = Math.random() * 0.15 + 0.02;
    this.scale = this.targetScale * Math.random();
  }

  Heart.prototype.update = function (i) {
    this.x += this.vel.x;
    this.y += this.vel.y;

    this.scale += (this.targetScale - this.scale) * 0.01;
    if (this.x - this.width > ww || this.x + this.width < 0) {
      this.scale = 0;
      this.x = Math.random() * ww;
    }
    if (this.y - this.height > wh || this.y + this.height < 0) {
      this.scale = 0;
      this.y = Math.random() * wh;
    }
    this.width = 473.8;
    this.height = 408.6;
  };
  Heart.prototype.draw = function (i) {
    ctx.globalAlpha = this.opacity;
    ctx.font = `${180 * this.scale}px "微软雅黑"`;
    // ctx.font="20px";
    ctx.fillStyle = colors[i % 18];
    ctx.fillText(
            "????吴彦祖????",
            this.x - this.width * 0.5,
            this.y - this.height * 0.5,
            this.width,
            this.height
    );
    // ctx.drawImage(
    //   heartImage,
    //   this.x - this.width * 0.5,
    //   this.y - this.height * 0.5,
    //   this.width,
    //   this.height
    // );
  };

  function render() {
    ctx.clearRect(0, 0, ww, wh);
    // ctx.globalAlpha = 1;
    // ctx.fillStyle = "rgba(255,255,255,0.3)";
    // ctx.fillRect(0, 0, ww, wh);
    for (var i = 0; i < 100; i++) {
      hearts[i].update(i);
      hearts[i].draw(i);
    }
    requestAnimationFrame(render);
  }
  init();

  // var heartImage = new Image();
  // heartImage.onload = init();
  // heartImage.src =
  //   "data:image/svg+xml;base64,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";

  window.addEventListener("resize", function () {
    ww = window.innerWidth;
    wh = window.innerHeight;
  });
</script>
<script>
  /*
   * Settings
   */
  var settings = {
    particles: {
      length: 500, // maximum amount of particles
      duration: 2, // particle duration in sec
      velocity: 100, // particle velocity in pixels/sec
      effect: -0.75, // play with this for a nice effect
      size: 30, // particle size in pixels
    },
  };

  /*
   * RequestAnimationFrame polyfill by Erik M?ller
   */
  (function () {
    var b = 0;
    var c = ["ms", "moz", "webkit", "o"];
    for (var a = 0; a < c.length && !window.requestAnimationFrame; ++a) {
      window.requestAnimationFrame = window[c[a] + "RequestAnimationFrame"];
      window.cancelAnimationFrame =
              window[c[a] + "CancelAnimationFrame"] ||
              window[c[a] + "CancelRequestAnimationFrame"];
    }
    if (!window.requestAnimationFrame) {
      window.requestAnimationFrame = function (h, e) {
        var d = new Date().getTime();
        var f = Math.max(0, 16 - (d - b));
        var g = window.setTimeout(function () {
          h(d + f);
        }, f);
        b = d + f;
        return g;
      };
    }
    if (!window.cancelAnimationFrame) {
      window.cancelAnimationFrame = function (d) {
        clearTimeout(d);
      };
    }
  })();

  /*
   * Point class
   */
  var Point = (function () {
    function Point(x, y) {
      this.x = typeof x !== "undefined" ? x : 0;
      this.y = typeof y !== "undefined" ? y : 0;
    }
    Point.prototype.clone = function () {
      return new Point(this.x, this.y);
    };
    Point.prototype.length = function (length) {
      if (typeof length == "undefined")
        return Math.sqrt(this.x * this.x + this.y * this.y);
      this.normalize();
      this.x *= length;
      this.y *= length;
      return this;
    };
    Point.prototype.normalize = function () {
      var length = this.length();
      this.x /= length;
      this.y /= length;
      return this;
    };
    return Point;
  })();

  /*
   * Particle class
   */

  var Particle = (function () {
    function Particle() {
      this.position = new Point();
      this.velocity = new Point();
      this.acceleration = new Point();
      this.age = 0;
    }
    Particle.prototype.initialize = function (x, y, dx, dy) {
      this.position.x = x;
      this.position.y = y;
      this.velocity.x = dx;
      this.velocity.y = dy;
      this.acceleration.x = dx * settings.particles.effect;
      this.acceleration.y = dy * settings.particles.effect;
      this.age = 0;
    };
    Particle.prototype.update = function (deltaTime) {
      this.position.x += this.velocity.x * deltaTime;
      this.position.y += this.velocity.y * deltaTime;
      this.velocity.x += this.acceleration.x * deltaTime;
      this.velocity.y += this.acceleration.y * deltaTime;
      this.age += deltaTime;
    };
    Particle.prototype.draw = function (context, image) {
      function ease(t) {
        return --t * t * t + 1;
      }
      var size = image.width * ease(this.age / settings.particles.duration);
      context.globalAlpha = 1 - this.age / settings.particles.duration;
      context.drawImage(
              image,
              this.position.x - size / 2,
              this.position.y - size / 2,
              size,
              size
      );
    };
    return Particle;
  })();

  /*
   * ParticlePool class
   */
  var ParticlePool = (function () {
    var particles,
            firstActive = 0,
            firstFree = 0,
            duration = settings.particles.duration;

    function ParticlePool(length) {
      // create and populate particle pool
      particles = new Array(length);
      for (var i = 0; i < particles.length; i++)
        particles[i] = new Particle();
    }
    ParticlePool.prototype.add = function (x, y, dx, dy) {
      particles[firstFree].initialize(x, y, dx, dy);

      // handle circular queue
      firstFree++;
      if (firstFree == particles.length) firstFree = 0;
      if (firstActive == firstFree) firstActive++;
      if (firstActive == particles.length) firstActive = 0;
    };
    ParticlePool.prototype.update = function (deltaTime) {
      var i;

      // update active particles
      if (firstActive < firstFree) {
        for (i = firstActive; i < firstFree; i++)
          particles[i].update(deltaTime);
      }
      if (firstFree < firstActive) {
        for (i = firstActive; i < particles.length; i++)
          particles[i].update(deltaTime);
        for (i = 0; i < firstFree; i++) particles[i].update(deltaTime);
      }

      // remove inactive particles
      while (
              particles[firstActive].age >= duration &&
              firstActive != firstFree
              ) {
        firstActive++;
        if (firstActive == particles.length) firstActive = 0;
      }
    };
    ParticlePool.prototype.draw = function (context, image) {
      // draw active particles
      if (firstActive < firstFree) {
        for (i = firstActive; i < firstFree; i++)
          particles[i].draw(context, image);
      }
      if (firstFree < firstActive) {
        for (i = firstActive; i < particles.length; i++)
          particles[i].draw(context, image);
        for (i = 0; i < firstFree; i++) particles[i].draw(context, image);
      }
    };
    return ParticlePool;
  })();

  /*
   * Putting it all together
   */
  (function (canvas) {
    var context = canvas.getContext("2d"),
            particles = new ParticlePool(settings.particles.length),
            particleRate =
                    settings.particles.length / settings.particles.duration, // particles/sec
            time;

    // get point on heart with -PI <= t <= PI
    function pointOnHeart(t) {
      return new Point(
              160 * Math.pow(Math.sin(t), 3),
              130 * Math.cos(t) -
              50 * Math.cos(2 * t) -
              20 * Math.cos(3 * t) -
              10 * Math.cos(4 * t) +
              25
      );
    }

    // creating the particle image using a dummy canvas
    var image = (function () {
      var canvas = document.createElement("canvas"),
              context = canvas.getContext("2d");
      canvas.width = settings.particles.size;
      canvas.height = settings.particles.size;
      // helper function to create the path
      function to(t) {
        var point = pointOnHeart(t);
        point.x =
                settings.particles.size / 2 +
                (point.x * settings.particles.size) / 350;
        point.y =
                settings.particles.size / 2 -
                (point.y * settings.particles.size) / 350;
        return point;
      }
      // create the path
      context.beginPath();
      var t = -Math.PI;
      var point = to(t);
      context.moveTo(point.x, point.y);
      while (t < Math.PI) {
        t += 0.01; // baby steps!
        point = to(t);
        context.lineTo(point.x, point.y);
      }
      context.closePath();
      // create the fill
      context.fillStyle = "#ea80b0";
      context.fill();
      // create the image
      var image = new Image();
      image.src = canvas.toDataURL();
      return image;
    })();

    // render that thing!
    function render() {
      // next animation frame
      requestAnimationFrame(render);

      // update time
      var newTime = new Date().getTime() / 1000,
              deltaTime = newTime - (time || newTime);
      time = newTime;

      // clear canvas
      context.clearRect(0, 0, canvas.width, canvas.height);

      // create new particles
      var amount = particleRate * deltaTime;
      for (var i = 0; i < amount; i++) {
        var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());
        var dir = pos.clone().length(settings.particles.velocity);
        particles.add(
                canvas.width / 2 + pos.x,
                canvas.height / 2 - pos.y,
                dir.x,
                -dir.y
        );
      }

      // update and draw particles
      particles.update(deltaTime);
      particles.draw(context, image);
    }

    // handle (re-)sizing of the canvas
    function onResize() {
      canvas.width = canvas.clientWidth;
      canvas.height = canvas.clientHeight;
    }
    window.onresize = onResize;

    // delay rendering bootstrap
    setTimeout(function () {
      onResize();
      render();
    }, 10);
  })(document.getElementById("pinkboard"));

 
</script>


</body></html>