TweenMax实现大山怪物出没动画效果代码-html代码-BFW代码库

TweenMax实现大山怪物出没动画效果代码

代码语言：html

所属分类：动画

代码描述：TweenMax实现大山怪物出没动画效果代码

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

<html>

<head>
    <style>
        body {
            margin: 0;
            background: #000000;
            overflow: hidden;
        }
        
        #canvas {
            position: absolute;
            margin: auto;
            width: 600px;
            height: 600px;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
            background: #000;
        }
    </style>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-3.2.1.min.js"></script>

<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/TweenMax.min.js"></script>
</head>

<body style=""><canvas id="canvas" width="600" height="600"></canvas>
    <script>
        var mViewWidth = 0,
            mViewHeight = 0,
            mCanvas = document.getElementById("canvas"),
            mCtx;
        
        var mRootDisplayNode;
        var mTrees = [];
        
        var mTreeImage = '//repo.bfw.wiki/bfwrepo/images/animat/tree.png',
            mMonsterImage = '//repo.bfw.wiki/bfwrepo/images/animat/monster-01.png';
        
        var mUrls = [
            mTreeImage,
            mMonsterImage
        ];
        
        var mImages = {};
        var mLoadedCount = 0;
        
        mUrls.forEach(function(url) {
            var img = mImages[url] = document.createElement('img');
        
            img.onload = function() {
                if (++mLoadedCount === mUrls.length) {
                    init();
                }
            };
        
            img.crossOrigin = 'Anonymous';
            img.src = url;
        });
        
        function init() {
            initCanvas();
        
            createMist();
            createTrees(300);
            createMist();
            createTrees(250);
            createMist();
            createMonster();
            createTrees(160);
            createMist();
            createTrees(120);
            createMist();
            createTrees(90);
            createMist();
            createTrees(70);
        
            requestAnimationFrame(loop);
        }
        
        function initCanvas() {
            mViewWidth = mCanvas.width = mCanvas.clientWidth;
            mViewHeight = mCanvas.height = mCanvas.clientHeight;
            mCtx = mCanvas.getContext('2d');
        
            mRootDisplayNode = new Node();
        }
        
        function createMist() {
            var mist = new Node(new Mist(mViewWidth * 1.2, mViewHeight * 1.2));
            var range = randomRange(0, 100);
        
            mist.x = -mViewWidth * 0.1;
            mist.y = -mViewHeight * 0.1;
        
            TweenMax.fromTo(mist, randomRange(6, 8), {y:'-='+range}, {y:'-='+range, ease:Power1.easeInOut, repeat:-1, yoyo:true});
        
            mRootDisplayNode.add(mist);
        }
        
        function createMonster() {
            var monster = new Node(new Monster(mImages[mMonsterImage]));
        
            monster.y = 135;
            monster.x = -150;
        
            var stepDeltaX = 30,
                stepDeltaY = 10;
        
            var stepDuration = 1.6,
                startOffset = 0.6;
        
            function step() {
                var tl = new TimelineMax();
        
                if (monster.x > mViewWidth) {
                    monster.x = -150;
                }
        
                tl.to(monster, stepDuration * 0.4, {y:'-=' + stepDeltaY, ease:Power2.easeOut}, startOffset);
                tl.to(monster, stepDuration * 0.6, {y:'+=' + stepDeltaY, ease:Power4.easeIn});
                tl.add('shake');
                tl.to(monster, stepDuration,       {x:'+=' + stepDeltaX, ease:Power1.easeOut}, startOffset);
        
                tl.addCallback(function() {
                    mTrees.forEach(function(t) {
                        TweenMax.to(t, randomRange(0.3, 0.4), {y:'+=' + randomRange(4, 16), ease:Back.easeIn, repeat:1, yoyo:true});
                    });
                }, 'shake-=0.25');
        
                tl.eventCallback('onComplete', step);
            }
        
            mRootDisplayNode.add(monster);
            step();
        }
        
        function createTrees(yOffset) {
            var tree;
        
            var dx = mViewWidth / 12;
        
            for (var i = 0; i < 12; i++) {
                tree = createTree(
                    mImages[mTreeImage],
                    dx * i + 35 * randomRange(0.8, 1.2),
                    (mViewHeight - yOffset) * randomRange(1.0, 1.2)
                );
        
                tree._segments.forEach(function(c) {
                    var range = randomRa.........完整代码请登录后点击上方下载按钮下载查看