canvas粒子球体内烟花碰撞爆炸动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：粒子

代码描述：canvas粒子球体内烟花碰撞爆炸动画效果代码

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">


    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">


    <style>
        html,
        body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }

        .container {
            position: relative;
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            background-color: #000000;
        }

        .container>canvas {
            position: absolute;
            top: 0;
            left: 0;
        }

        @import url('https://fonts.googleapis.com/css2?family=Pacifico&display=swap');

        .title {
            font-family: 'Pacifico', cursive;
            color: #fff;
            text-shadow: 6px 4px #735b13;
            position: fixed;
            color: white;
            font-size: 40pt;
            z-index: 1;
            top: 45%;
            left: 40%;
            text-align: center;
            display: none;
        }
        .count {
            font-family: 'Pacifico', cursive;
            color: #fff;
            text-shadow: 6px 4px #735b13;
            position: fixed;
            color: white;
            font-size: 100pt;
            z-index: 1;
            top: 40%;
            left: 48%;
            text-align: center;
        }
    </style>
</head>

<body>
    <!-- From CyberSoft with Love !!! -->
    <span class="count">5</span>

    <span class="title">Happy New Year <br /> 2023</span>
    <div id="jsi-sphere-container" class="container">

    </div>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-3.2.1.min.js"></script>

    <script>
        let i = 6;
        let timeOut = setInterval(() => {
            i--;
            document.querySelector(".count").innerHTML = i;
            if (i == 0) {
                clearInterval(timeOut);
                document.querySelector(".title").style.display = 'block';
                document.querySelector(".count").style.display = 'none';


            }
        }, 1000);

        var RENDERER = {
            AUXILIARY_LINE_COUMT: 16,
            MAX_ROTATION_ANGLE: Math.PI / 200,
            FIREWORK_INTERVAL: { min: 30, max: 100 },

            init: function () {
                this.setParameters();
                this.setupData();
                this.reconstructMethod();
                this.bindEvent();
                this.render();
            },
            setParameters: function () {
                this.$document = $(document);
                this.$window = $(window);
                this.$container = $("#jsi-sphere-container");
                this.width = this.$container.width();
                this.height = this.$container.height();
                this.contextBackground = $("<canvas />")
                    .attr({ width: this.width, height: this.height })
                    .appendTo(this.$container)
                    .get(0)
                    .getContext("2d");
                this.contextForeground = $("<canvas />")
                    .attr({ width: this.width, height: this.height })
                    .appendTo(this.$container)
                    .get(0)
                    .getContext("2d");
                this.camera = CAMERA.init(this);
                this.angleX = this.MAX_ROTATION_ANGLE / 2;
                this.angleY = this.MAX_ROTATION_ANGLE / 2;
                this.points = [];
                this.fireworks = [];
                this.maxFireworkInterval = this.getRandomValue(this.FIREWORK_INTERVAL) | 0;
                this.fireworkInterval = this.maxFireworkInterval;
                this.base = Math.min(this.width, this.height);
                this.scatterRadius = (this.base * 3) / 2;
            },
            reconstructMethod: function () {
                this.render = this.render.bind(this);
                this.changeDepth = this.changeDepth.bind(this);
                this.changeAngle = this.changeAngle.bind(this);
            },
            getRandomValue: function (range) {
                return range.min + (range.max - range.min) * Math.random();
            },
            bindEvent: function () {
                this.$document.on(
                    "onwheel" in document
                        ? "wheel"
                        : "onmousewheel" in document
                            ? "mousewheel"
                            : "DOMMouseScroll",
                    this.changeDepth
                );
                this.$container.on("mousemove", this.changeAngle);
            },
            setupData: function () {
                for (var i = 1; i < this.AUXILIARY_LINE_COUMT; i++) {
                    for (
                        var phi = 0,
                        deltaPhi =
                            (Math.PI * 2) /
                            (this.AUXILIARY_LINE_COUMT * 2 -
                                Math.abs(this.AUXILIARY_LINE_COUMT * 2 - i * 4));
                        phi < Math.PI * 2;
                        phi += deltaPhi
                    ) {
                        this.points.push(
                            new POINT(
                                this.camera,
                                this.getAxis3D((Math.PI / this.AUXILIARY_LINE_COUMT) * i, phi)
                            )
                        );
                    }
                }
            },
            changeDepth: function (event) {
                event.preventDefault();
                this.camera.move(
                    0,
                    0,
                    (event.originalEvent.deltaY ||
                        -event.originalEvent.wheelDelta ||
                        event.originalEvent.detail) >= 0
                        ? 3
                        : -2
                );
            },
            changeAngle: function (event) {
                var offset = this.$container.offset(),
                    x = event.clientX - offset.left + this.$window.scrollLeft(),
                    y = event.clientY - offset.top + this.$window.scrollTop();
                this.angleY =
                    ((this.width / 2 - x) / this.width) * 2 * this.MAX_ROTATION_ANGLE;
                this.angleX =
                    ((this.height / 2 - y) / this.height) * 2 * this.MAX_ROTATION_ANGLE;
            },
            getAxis3D: function (theta, phi) {
                var cosTheta = Math.cos(theta),
                    sinTheta = Math.sin(theta);
                return {
                    x: this.scatterRadius * sinTheta * Math.cos(phi),
                    y: this.scatterRadius * cosTheta,
                    z: this.scatterRadius * sinTheta * Math.sin(phi)
                };
            },
            render: function () {
                requestAnimationFrame(this.render);
                this.contextForeground.clearRect(0, 0, this.width, this.height);
                this.contextBackground.fillStyle = "hsla(0, 0%, 0%, 0.2)";
                this.contextBackground.fillRect(0, 0, this.width, this.height);

                for (var i = 0, length = this.points.length; i < length; i++) {
                    this.points[i].rotateX(this.angleX);
                    this.points[i].rotateY(this.angleY);
                }
                for (var i = 0, length = this.fireworks.length; i < length; i++) {
                    this.fireworks[i].rotateX(this.angleX);
                    this.fireworks[i].rotateY(this.angleY);
                }
                this.points.sort(function (point1, point2) {
                    return point2.getAxis3D().z - point1.getAxis3D().z;
                });
                this.fireworks.sort(function (firework1, firework2) {
                    return firework2.getAxis3D().z - firework1.getAxis3D().z;
                });
                for (var i = this.points.length - 1; i >= 0; i--) {
                    this.points[i].render(this.contextForeground);
                }
                for (var i = this.fireworks.length - 1; i >= 0; i--) {
                    if (!this.fireworks[i].render(this.contextBackground)) {
                        this.fireworks.splice(i, 1);
                    }
                }
                if (--this.fireworkInterval == 0) {
                    this.fireworks.push(new FIREWORK(this, this.camera));
                    this.maxFireworkInterval =
                        this.getRandomValue(this.FIREWORK_INTERVAL) | 0;
                    this.fireworkInterval = this.maxFireworkInterval;
                }
            }
        };
        var CAMERA = {
            INIT_AXIS: { X: 0, Y: 0, Z: -2300 },
            MIN_Z: -3000,
            FOCUS_DISTANCE: 500,
            MAGNIFICATION: 50,
            OFFSET: 100,

            init: function (renderer) {
                this.renderer = renderer;
                this.x = this.INIT_AXIS.X;
                this.y = this.INIT_AXIS.Y;
                this.z = this.INIT_AXIS.Z;
                return this;
  .........完整代码请登录后点击上方下载按钮下载查看