gsap实现烟花棒燃烧四射发光动画效果代码-html代码-BFW代码库

gsap实现烟花棒燃烧四射发光动画效果代码

代码语言：html

所属分类：动画

代码描述：gsap实现烟花棒燃烧四射发光动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  


  
<style>
body {
  margin: 0;
  background: #130f40;
  background-image: radial-gradient(circle at center, #130f40 0, #0b0926 100%);
  overflow: hidden;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.canvas {
  position: fixed;
  inset: 0;
}

.sparkler {
  stroke-linecap: round;
  transform-box: fill-box;
  transform-origin: 50% 50%;
}
.sparkler__base {
  stroke: #bbb;
  stroke-width: 5;
}
.sparkler__center {
  fill: rgba(246, 229, 141, 0.075);
  filter: drop-shadow(0 0 15px #f0932b);
}
.sparkler__head {
  filter: drop-shadow(0 0 20px #ffbe76);
}
.sparkler__line {
  stroke-width: 1.15;
  stroke: white;
  filter: drop-shadow(0 0 5px #f9ca24);
}
.sparkler__star {
  fill: #f6e58d;
  filter: drop-shadow(0 0 8px #f9ca24);
  stroke: 0;
}
</style>


  
  
</head>

<body translate="no">
  <svg class="canvas" width="100%" height="100%" viewBox="0 0 1600 800">
</svg>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/gsap.3.12.5.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/DrawSVGPlugin3.min.js"></script>
      <script  >
(function () {
  const element = document.querySelector(".neon__light");
  const svg = document.querySelector("svg");

  let mouse = {
    x: 0,
    y: 0
  };
  let screen = {
    w: window.innerWidth,
    h: window.innerHeight
  };
  let wrapper;
  updateViewBox();
  drawSparkler();

  let mouseStored = Object.assign({}, mouse);

  gsap.set(element, { transformOrigin: "${size}0% ${size}0%" });

  // Set event listeners
  window.addEventListener("mousemove", function (e) {
    setMouseCoords(e);
  });
  window.addEventListener("resize", function (e) {
    updateVariables(e);
  });

  // And use the ticker to update the SVG
  gsap.ticker.add(animate);

  function updateVariables(event) {
    screen = {
      w: window.innerWidth,
      h: window.innerHeight
    };
    updateViewBox();
  }

  function updateViewBox() {
    svg.setAttribute("viewBox", `0 0 ${screen.w} ${screen.h}`);
  }

  function setMouseCoords(event) {
    mouse.x = event.clientX;
    mouse.y = event.clientY;
  }

  function animate() {
    if (mouseStored.x === mouse.x && mouseStored.y === mouse.y) return;

    let xPercent = getPercentage(mouse.x, screen.w) - 50;
    let yPercent = getPercentage(mouse.y, screen.h) - 50;

    // mouse animation here
    gsap.to(wrapper, {
      ease: "linear",
      yPercent: yPercent * 0.75,
      x: xPercent * 0.75,
      rotation: -xPercent * Math.abs(yPercent) * 0.01
    });

    // Store the mouse position for the next tick
    mouseStored.x = mouse.x;
    mouseStored.y = mouse.y;
  }

  function drawSparkler() {
    let h = screen.h * 0.2;
    let offsetY = ((screen.h - h) / 2) * 1.2;
    let sparkW = h * 0.3;

    let density = 25;

    wrapper = document.createElementNS("http://www.w3.org/2000/svg", "g");
    wrapper.classList.add("sparkler");

    let base = document.createElementNS("http://www.w3.org/2000/svg", "path");
    base.classList.add("sparkler__base");
    base.setAttribute("d", `M ${screen.w / 2} ${offsetY} v ${h}`);

    let center = document.createElementNS(
      "http://www.w3.org/2000/svg",
      "circle"
  .........完整代码请登录后点击上方下载按钮下载查看