html5仿淘宝,京东实现红包雨效果（代码实例）

//初始化图片 let imgjishi = 'assets/img/daojishi.png' let bgPlan = 'assets/img/bg-plan.jpg' let bgRainer = 'assets/img/bg-rainer.jpg' let redpacket = 'assets/img/redpacket.png' let close = 'assets/img/close.png' let dialogExit = 'assets/img/dialog-exit.png' let buttonCancel = 'assets/img/button-cancel.png' let buttonExit = 'assets/img/button-exit.png' let openRedpacket = 'assets/img/open-redpacket.png' let open = 'assets/img/open.png' let redpacketResult = 'assets/img/redpacket-result.png' let buttonUseTicket = 'assets/img/button-use-ticket.png' let buttonContinue = 'assets/img/button-continue.png' let cursorAnimation = 'assets/img/cursor-animation.png' let states = {} let QingLvGroup; let hitNum = 0; let config = { selfPool:40, selfPic:'redpacket', rate:0.5, maxSpeed:1200, minSpeed:400, max:95 } let ids = [0, 1, 2, 3, 4, 5] let redpackets = ['全场优惠50元', '20元代金券', '全场优惠50元', '20元代金券', '全场优惠50元', '20元代金券'] let time = 25; let getIds = [] let radio = document.documentElement.clientWidth/375; let e; function rfuc(n){ return n*radio; } //初始化红包 function QingLv(config, game){ this.init = function(){ this.config = config; QingLvGroup = game.add.group(); QingLvGroup.enableBody = true; QingLvGroup.createMultiple(config.selfPool, config.selfPic); //初始化多个红包 QingLvGroup.setAll('anchor.y',1) QingLvGroup.setAll('outOfBoundsKill', true); QingLvGroup.setAll('checkWorldBounds', true); this.maxWidth = game.width + 300; game.time.events.loop(Phaser.Timer.SECOND * config.rate, this.createQL, this); }; this.createQL = function(){ e = QingLvGroup.getFirstExists(false); if(e) { if(hitNum >= config.max) { return; } hitNum++; e.events.onInputDown.removeAll(); var ram= Math.random(); ram =ram<0.5?ram+=0.5: ram; e.loadTexture(this.config.selfPic) e.alpha = 1; e.angle = 30 // e.scale.setTo(rfuc(ram)); e.reset(game.rnd.integerInRange(100, this.maxWidth), 100) //红包生成的位置 e.body.velocity.x = game.rnd.integerInRange(-300, -150); //红包移动的速度 e.body.velocity.y = game.rnd.integerInRange(config.minSpeed, config.maxSpeed); e.inputEnabled = true; e.events.onInputDown.add(this.hitted, this) } }; this.hitted = function(sprite){ if(Math.random() < 1/4 && ids.length > 0) { sprite.kill(); //点击获得红包,游戏暂停 game.paused = true; //背景 let hexGraphics = new Phaser.Graphics().beginFill(0x000000, 0.5).drawRect(0,0,document.documentElement.clientWidth,document.documentElement.clientHeight + 2); let pausedMask = game.add.sprite(0, 0, hexGraphics.generateTexture()) let openDialog = game.add.sprite(rfuc(62), rfuc(150), 'openRedpacket') let open = game.add.sprite(rfuc(130), rfuc(300), 'open') open.inputEnabled = true; let result = game.add.sprite(rfuc(0), rfuc(120), 'redpacketResult') result.visible = false let userTicket = game.add.sprite(rfuc(78), rfuc(445), 'buttonUseTicket') userTicket.visible = false let goOn = game.add.sprite(rfuc(198), rfuc(445), 'buttonContinue') goOn.visible = false let ticketText = {}; let link = '' //拆红包 let clickOpen = function() { //游戏暂停时,点击事件无效,只能通过这种画热点的形式来绑定事件 let openRect = new Phaser.Rectangle(rfuc(130), rfuc(315), 239, 239).copyFrom(open); if (openRect.contains(game.input.x, game.input.y)) { let currentWidth = open.width //拆红包动画 let tempArr = [2, 4, 8, 4, 2, 1] let index = 0; let timer = setInterval(function() { if (index > tempArr.length-1) { index = 0 } open.width = currentWidth / tempArr[index] open.height = open.height open.left = game.world.centerX - open.width / 2 ++index }, 200) game.input.onDown.remove(clickOpen, this); let arrIndex = Math.floor(Math.random() * ids.length) let redpacketId = ids.splice(arrIndex, 1) getIds.push(redpacketId[0]) setTimeout(()=> { timer && clearInterval(timer) document.getElementById('audioOpen').play() let text = redpackets[redpacketId[0]] ticketText=game.add.text(0, rfuc(338),text,{fill:'#ffe67d',fontSize:'46px',fontWeight: 'bolder'}) ticketText.left = game.world.centerX - ticketText.width / 2 //文字相对于屏幕左右居中 openDialog.visible = false open.visible = false result.visible = true userTicket.visible = true goOn.visible = true game.input.onDown.add(clickButton, this) }, 1000) } }; let clickButton = function() { let userTicketRect = new Phaser.Rectangle(rfuc(78), rfuc(445), 194, 66).copyFrom(userTicket); let continueRect = new Phaser.Rectangle(rfuc(198), rfuc(445), 194, 66).copyFrom(goOn); if (userTicketRect.contains(game.input.x, game.input.y)) { window.location.replace(link) game.input.onDown.remove(clickButton, this); } else if (continueRect.contains(game.input.x, game.input.y)) { result.visible = false userTicket.visible = false goOn.visible = false pausedMask.visible = false ticketText.visible = false game.paused = false game.input.onDown.remove(clickButton, this); } } game.input.onDown.add(clickOpen, this) } else { sprite.inputEnabled = false; var anim = sprite.animations.add(config.selfPic); sprite.play(config.selfPic, 40, false); anim.onComplete.add(this.fade, this, sprite) } }; this.fade = function(sprite){ var tween = game.add.tween(sprite).to({alpha:0}, 300, 'Linear', true) tween.onComplete.add(this.killed, this, sprite); }; this.killed = function(sprite){ sprite.kill(); } } states.boot = function(game) { this.preload = function() { if (typeof(GAME) !== "undefined") { this.load.baseURL = GAME + "/"; } if (!game.device.desktop) { this.scale.scaleMode = Phaser.ScaleManager.EXACT_FIT; this.scale.forcePortrait = true; this.scale.refresh(); } }; this.create = function() { game.stage.backgroundColor = '#FFF'; game.state.start('preload'); }; }; states.preload = function(game) { this.preload = function(game) { //加载图片 game.load.spritesheet('daojishi', imgjishi, 250,120, 4) game.load.image('bgPlan', bgPlan) game.load.image('bgRainer', bgRainer) game.load.spritesheet('redpacket', redpacket, 144, 173, 2) game.load.image('close', close) game.load.image('dialogExit', dialogExit) game.load.image('buttonExit', buttonExit) game.load.image('buttonCancel', buttonCancel) game.load.image('openRedpacket', openRedpacket) game.load.image('open', open) game.load.image('redpacketResult', redpacketResult) game.load.image('buttonContinue', buttonContinue) game.load.image('buttonUseTicket', buttonUseTicket) game.load.spritesheet('cursorAnimation', cursorAnimation, 74, 108, 2) }; this.create = function() { game.state.start('main'); }; }; states.main = function(game) { this.create = function() { // 物理系统 game.physics.startSystem(Phaser.Physics.ARCADE); // 背景图 var bgPlan = game.add.sprite(0, 0, 'bgPlan'); bgPlan.width = game.width; bgPlan.height = game.height; var cursorPointer = game.add.sprite(game.world.centerX - 36, game.world.centerY + 86, 'cursorAnimation'); var anim = cursorPointer.animations.add('cursorAnimation'); cursorPointer.play('cursorAnimation', 2, true); document.getElementById('audioCountDown').play() // 开始游戏倒计时 var daojishi = game.add.sprite(game.world.centerX - 140, game.world.centerY - 400, 'daojishi'); var anim = daojishi.animations.add('daojishi'); daojishi.play('daojishi', 1, false); anim.onComplete.add(this.startGame, this, daojishi); }; this.startGame = function(daojishi){ this.leftTime = time let bgRainer = game.add.sprite(0, 0, 'bgRainer'); bgRainer.width = game.width; bgRainer.height = game.height; daojishi.visible = false; this.createQingLv(); //添加按钮,并绑定事件 let closeImg = game.add.button(rfuc(20), rfuc(20), 'close', function(){ game.paused = true pausedMask.visible = true exitDialog.visible = true exitButton.visible = true cancelButton.visible = true game.input.onDown.add(buttonClick, this) }.bind(this)) // 剩余时间 this.leftTimeText = game.add.text(0, 0, this.leftTime, {fill: '#FFF', fontSize: '40px', fontWeight: 'bolder'}) this.leftTimeText.scale.setTo(rfuc(1)) this.leftTimeText.fixedToCamera = true; this.leftTimeText.cameraOffset.setTo(game.camera.width - rfuc(80), rfuc(20)); let hexGraphics = new Phaser.Graphics().beginFill(0x000000, 0.5).drawRect(0,0,document.documentElement.clientWidth,document.documentElement.clientHeight + 2); let pausedMask = game.add.sprite(0, 0, hexGraphics.generateTexture()) pausedMask.visible = false; let exitDialog = game.add.sprite(rfuc(62), rfuc(150), 'dialogExit') exitDialog.visible = false; let exitButton = game.add.button(rfuc(80), rfuc(315), 'buttonExit') exitButton.visible = false; let isExit = false let cancelButton = game.add.button(rfuc(200), rfuc(315), 'buttonCancel') cancelButton.visible = false; game.time.events.repeat(Phaser.Timer.SECOND, this.leftTime, this.refreshTime, this) let buttonClick = function() { let cancelRect = new Phaser.Rectangle(rfuc(200), rfuc(315), 194, 66).copyFrom(cancelButton); if (cancelRect.contains(game.input.x, game.input.y)) { game.input.onDown.remove(buttonClick, this) game.paused = false pausedMask.visible = false exitDialog.visible = false exitButton.visible = false cancelButton.visible = false } } }; this.createQingLv = function(){ this.qinglv = new QingLv(config, game); this.qinglv.init(); this.qinglv = new QingLv(config, game); this.qinglv.init(); }; this.refreshTime = function(){ this.leftTime--; var tem = this.leftTime; this.leftTimeText.text = tem; if(this.leftTime === 0) { game.paused = true; } } }; //生成游戏 let game = null if (game == null) { game = new Phaser.Game(document.documentElement.clientWidth, document.documentElement.clientHeight + 2, Phaser.AUTO, document.getElementById('gameScreen')); game.state.add('boot', states.boot.bind(game)); game.state.add('preload', states.preload.bind(game)); game.state.add('main', states.main.bind(game)); game.state.start('boot'); }

game.input.onDown.add(clickOpen, this) //给游戏绑定全局事件 let userTicket = game.add.sprite(rfuc(78), rfuc(445), 'buttonUseTicket') let userTicketRect = new Phaser.Rectangle(78, 445, 194, 66).copyFrom(userTicket); //获得button的区域 //如果点击的位置为button的位置就执行下一步 if (userTicketRect.contains(game.input.x, game.input.y)) { 　　//移除全局事件 game.input.onDown.remove(clickButton, this); }

ticketText = game.add.text(0, rfuc(338), '我想居中', {fill: '#ffe67d', fontSize: '46px', fontWeight: 'bolder'}) ticketText.left = game.world.centerX - ticketText.width / 2 //文字相对于屏幕左右居中