canvas实现可配置参数的彩色粒子运动动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：粒子

代码描述：canvas实现可配置参数的彩色粒子运动动画效果代码

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, html {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: black;
  font-family: Arial, sans-serif;
}
#canvas {
  display: block;
}
#config-panel {
  position: absolute;
  top: 60px;
  left: 10px;
  background-color: rgba(30, 30, 30, 0.9);
  color: #fff;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease-in-out;
  max-width: 300px;
}
#config-panel.collapsed {
  transform: translateX(calc(-100% - 10px));
}

#toggle-panel {
  position: absolute;
  cursor: pointer;
  padding: 10px;
  top: 10px;
  left: 10px;
  background-color: rgba(200, 200, 200, 0.5);
  border-radius: 5px;
  margin-bottom: 15px;
  text-align: center;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

#toggle-panel:hover {
  background-color: rgba(80, 80, 80, 0.8);
}
.slider-container {
  margin-bottom: 15px;
}
.slider-container label {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
}
input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  background: transparent;
  margin: 10px 0;
}
input[type="range"]:focus {
  outline: none;
}
input[type="range"]::-webkit-slider-runnable-track {
  width: 100%;
  height: 4px;
  cursor: pointer;
  background: #4caf50;
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 16px;
  width: 16px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  margin-top: -6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.value-display {
  display: inline-block;
  width: 40px;
  text-align: right;
  font-size: 14px;
  float: right;
}

button {
  background-color: #3498db;
  color: #fff;
  border: none;
  padding: 10px;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.2s;
}
button:hover {
  background-color: #2980b9;
}
</style>

  
</head>

<body translate="no">
  <canvas id="canvas"></canvas>
<div id="toggle-panel"> ☰</div>
<div id="config-panel">
  <button id="fullscreenBtn">Toggle Fullscreen</button>
  <P><div class="slider-container">
    <label for="particle-count">Particle Count: <span class="value-display" id="particle-count-value">150</span></label>
    <input type="range" id="particle-count" min="10" max="300" value="150">
  </div>
  <div class="slider-container">
    <label for="max-velocity">Max Velocity: <span class="value-display" id="max-velocity-value">4</span></label>
    <input type="range" id="max-velocity" min="0.5" max="10" step="0.1" value="4">
  </div>
  <div class="slider-container">
    <label for="mouse-radius">Mouse Radius: <span class="value-display" id="mouse-radius-value">33</span></label>
    <input type="range" id="mouse-radius" min="10" max="100" value="33">
  </div>
  <div class="slider-container">
    <label for="mouse-force">Mouse Force: <span class="value-display" id="mouse-force-value">4</span></label>
    <input type="range" id="mouse-force" min="1" max="10" step="0.1" value="4">
  </div>
  <div class="slider-container">
    <label for="connection-distance">Connection Distance: <span class="value-display" id="connection-distance-value">70</span></label>
    <input type="range" id="connection-distance" min="50" max="200" value="70">
  </div>
</div>
  
      <script >
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

const configPanel = document.getElementById('config-panel');
const togglePanel = document.getElementById('toggle-panel');

togglePanel.addEventListener('click', () => {
  configPanel.classList.toggle('collapsed');
});

function resizeCanvas() {
  canvas.width = window.innerWidth;
  canvas.height = window.innerHeight;
}
window.addEventListener('resize', resizeCanvas);
resizeCanvas();

let particles = [];
let particleCount = 150;
let maxVelocity = 4;
let mouseForce = 4;
let temporaryMouseForce = mouseForce;
let connectionDistance = 70;

const mouse = {
  x: canvas.width / 2,
  y: canvas.height / 2,
  radius: 33,
  isActive: false };


canvas.addEventListener('mousemove', function (e) {
  const rect = canvas.getBoundingClientRect();
  mouse.x = e.clientX - rect.left;
  mouse.y = e.clientY - rect.top;
  mouse.isActive = true;
});

canvas.addEventListener('mouseout', function () {
  mouse.isActive = false;
});

canvas.addEventListener('touchstart', function (e) {
  e.preventDefault();
  const rect = canvas.getBoundingClientRect();
  mouse.x = e.touches[0].clientX - rect.left;
  mouse.y = e.touches[0].clientY - rect.top;
  mouse.isActive = true;
}, { passive: false });

canvas.addEventListener('touchmove', function (e) {
  e.preventDefault();
  const rect = canvas.getBoundingClientRect();
  mouse.x = e.touches[0].clientX - rect.left;
  mouse.y = e.touches[0].clientY - rect.top;
  mouse.isActive = true;
}, { passive: false });

canvas.addEventListener('touchend', function (e) {
  e.preventDefault();
  mouse.isActive = false;
}, { passive: false });

canvas.addEventListener('click', function (e) {
  const rect = canvas.getBoundingClientRect();
  const clickX = e.clientX - rect.left;
  const clickY = e.clientY - rect.top;
  let particleClicked = false;

  particles.forEach((p, index) => {
    const dx = p.x - clickX;
    const dy = p.y - clickY;
    const dist = Math.hypot(dx, dy);

    if (dist <= p.radius) {
      explodeParticle(index);
      particleClicked = true;
    }
  });

  if (particleClicked) {
    temporaryMouseForce = mouseForce * 3;
    setTimeout(() => {
      temporaryMouseForce = mouseForce;
    }, 500);
  }
});

function explodeParticle(index) {
  const parentParticle = particles[index];
  particles.splice.........完整代码请登录后点击上方下载按钮下载查看