鱼游效果

代码语言:html

所属分类:粒子

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">

    <title></title>
    <style>
        body, canvas {
            margin: 0;
            overflow: hidden;
            background-color: black;
        }
    </style>

</head>
<body translate="no">
    <canvas id=canvas></canvas>

    <script>

        let rnd = Math.random;
        let w = canvas.width = innerWidth;
        let h = canvas.height = innerHeight;

        let ctx = canvas.getContext("2d");
        ctx.translate(w / 2, h / 2);
        ctx.textAlign = 'center';
        ctx.textBaseline = "middle";

        let pts = Array(99).fill(0).map(() => {
            let d = rnd() * Math.PI * 2;
            let size = rnd() * 22 + 11;
            return {
                size,
                dir: d,
                targetDir: d,
                speed: 1 + rnd() / size * 11,
                x: rnd() * w - w / 2,
                y: rnd() * h - h / 2
            };

        });



        function draw(t) {
            requestAnimationFrame(draw);
            ctx.fillStyle = "#00000012";
          .........完整代码请登录后点击上方下载按钮下载查看

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