鼠标移动特效

最新推荐文章于 2021-03-31 20:59:40 发布

原创最新推荐文章于 2021-03-31 20:59:40 发布 · 808 阅读

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CC 4.0 BY-SA版权

@xiao黑

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本文介绍了一种使用HTML5 Canvas实现的鼠标轨迹特效动画，通过跟踪鼠标位置并绘制线条，创造出独特的视觉效果。特效包括粒子跟随鼠标移动，并在粒子间形成连接，增强了网页的交互性和吸引力。

鼠标线状移动特效

<html>
	<head>
		<body>
			<h1 align="center">HelloWord!</h1>
			<script>
				  !function () {

      			  function n(n, e, t) {

           		 return n.getAttribute(e) || t

     	   }

      	  function e(n) {

            	return document.getElementsByTagName(n)

        }

       	 function t() {

            var t = e("script"), o = t.length, i = t[o - 1];

            return {

                l: o, z: n(i, "zIndex", -1), o: n(i, "opacity", .5), c: n(i, "color", "0,0,0"), n: n(i, "count", 99)
            }
        }

        function o() {
            a = m.width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
                34
            c = m.height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight
        }

        function i() {
            r.clearRect(0, 0, a, c);

            var n, e, t, o, m, l;
            s.forEach(function (i, x) {

                for (i.x += i.xa, i.y += i.ya, i.xa *= i.x > a || i.x < 0 ? -1 : 1, i.ya *= i.y > c || i.y < 0 ? -1 : 1, r.fillRect(i.x - .5, i.y - .5, 1, 1), e = x + 1; e < u.length; e++) n = u[e],

                null !== n.x && null !== n.y && (o = i.x - n.x, m = i.y - n.y,
                    l = o * o + m * m, l < n.max && (n === y && l >= n.max / 2 && (i.x -= .03 * o, i.y -= .03 * m),
                    t = (n.max - l) / n.max, r.beginPath(), r.lineWidth = t / 2, r.strokeStyle = "rgba(" + d.c + "," + (t + .2) + ")", r.moveTo(i.x, i.y), r.lineTo(n.x, n.y), r.stroke()))
            }),
                x(i)
        }

        var a, c, u, m = document.createElement("canvas"),
            d = t(), l = "c_n" + d.l, r = m.getContext("2d"),
            x = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
                function (n) {
                    window.setTimeout(n, 1e3 / 45)
                },
            w = Math.random, y = {x: null, y: null, max: 2e4};
        m.id = l, m.style.cssText = "position:fixed;top:0;left:0;z-index:" + d.z + ";opacity:" + d.o, e("body")[0].appendChild(m), o(), window.onresize = o,
            window.onmousemove = function (n) {
                n = n || window.event, y.x = n.clientX, y.y = n.clientY
            },
            window.onmouseout = function () {
                y.x = null, y.y = null
            };
        for (var s = [], f = 0; d.n > f; f++) {
            var h = w() * a, g = w() * c, v = 2 * w() - 1, p = 2 * w() - 1;
            s.push({x: h, y: g, xa: v, ya: p, max: 6e3})
        }
        u = s.concat([y]),
            setTimeout(function () {
                i()
            }, 100)
    }();
		</script>
	</body>
</html>