js实现三角形粒子运动
(编辑：jimmy 日期: 2024/12/25 浏览：2)
本文实例为大家分享了js实现三角形粒子运动的具体代码，供大家参考，具体内容如下
效果(这里只是截了一个静态图，实际上里面的粒子是运动状态的)：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>粒子</title>
<style>
* {
margin: 0;
padding: 0;
}
body {
overflow: hidden;
}
</style>
<script>
//随机数获取 3 10 *7+3
function random(min, max) {
return Math.random() * (max - min) + min;
}
//亮色系
// colors = ['#7cb5ec', '#434348', '#90ed7d', '#f7a35c', '#8085e9', '#f15c80', '#e4d354', '#8085e8', '#8d4653', '#91e8e1'];
//暗色系
colors = ['#c23531', '#2f4554', '#61a0a8', '#d48265', '#91c7ae', '#749f83', '#ca8622', '#bda29a', '#6e7074', '#546570', '#c4ccd3']
//获取窗口宽高
var width = window.innerWidth;
var height = window.innerHeight;
function Bubble() {
this.r = random(5, 100);
this.x1 = random(this.r, this.r * 2);
this.y1 = random(this.r, this.r * 2);
this.x2 = random(this.r, this.r * 2);
this.y2 = random(this.r, this.r * 2);
this.x3 = random(this.r, this.r * 2);
this.y3 = random(this.r, this.r * 2);
//随机获取colors数组里的颜色
this.color = colors[Math.floor(random(0, colors.length))];
//偏移步长
this.xr = random(-5, 5);
this.yr = random(-5, 5);
}
Bubble.prototype = {
//绘制
draw: function (context) {
//开始路径
context.beginPath();
context.moveTo(this.x1, this.y1);
context.lineTo(this.x2, this.y2);
context.lineTo(this.x3, this.y3);
context.lineTo(this.x1, this.y1);
context.fillStyle = this.color;
context.fill();
},
//移动
move: function (context) {
this.x1 += this.xr;
this.y1 += this.yr;
this.x2 += this.xr;
this.y2 += this.yr;
this.x3 += this.xr;
this.y3 += this.yr;
//边缘检测
(this.x1 > width || this.x1 < 0) "点击停止，再次点击活动"></canvas>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。