html5仿淘寶,京東實現(xiàn)紅包雨效果的方法？這個問題可能是我們?nèi)粘W(xué)習(xí)或工作經(jīng)常見到的。希望通過這個問題能讓你收獲頗深。下面是小編給大家?guī)淼膮⒖純?nèi)容，讓我們一起來看看吧！
圖片依次是倒計時頁面,搶紅包頁面,拆紅包頁,紅包展示頁,這些頁面都是寫在一個canvas里面的,無刷新的切換效果,性能超級棒
2.代碼展示貼上主要的代碼js代碼和注釋
重慶分公司
重慶分公司
//初始化圖片
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 = ['全場優(yōu)惠50元', '20元代金券', '全場優(yōu)惠50元', '20元代金券', '全場優(yōu)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;
}
//初始化紅包
function QingLv(config, game){
this.init = function(){
this.config = config;
QingLvGroup = game.add.group();
QingLvGroup.enableBody = true;
QingLvGroup.createMultiple(config.selfPool, config.selfPic); //初始化多個紅包
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) //紅包生成的位置
e.body.velocity.x = game.rnd.integerInRange(-300, -150); //紅包移動的速度
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();
//點擊獲得紅包,游戲暫停
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 = ''
//拆紅包
let clickOpen = function() {
//游戲暫停時,點擊事件無效,只能通過這種畫熱點的形式來綁定事件
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
//拆紅包動畫
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 //文字相對于屏幕左右居中
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) {
//加載圖片
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() {
// 物理系統(tǒng)
game.physics.startSystem(Phaser.Physics.ARCADE);
// 背景圖
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()
// 開始游戲倒計時
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();
//添加按鈕,并綁定事件
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))
// 剩余時間
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;
}
}
};
//生成游戲
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');
}3. 疑難問題1. 游戲暫停時,點擊事件無效,需要點擊,怎么解決答: 通過全局事件畫熱點的形式綁定事件,一定要記得移除事件,一定一定要記得
game.input.onDown.add(clickOpen, this) //給游戲綁定全局事件
let userTicket = game.add.sprite(rfuc(78), rfuc(445), 'buttonUseTicket')
let userTicketRect = new Phaser.Rectangle(78, 445, 194, 66).copyFrom(userTicket); //獲得button的區(qū)域
//如果點擊的位置為button的位置就執(zhí)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);
}2. 文字或圖片相對于屏幕居中(暫時只能做屏幕居中)答: 添加文字到游戲中,文字向左的偏移量等于游戲屏幕的寬度減去文字寬度的一般,就能達到居中的效果
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 //文字相對于屏幕左右居中感謝各位的閱讀！看完上述內(nèi)容，你們對html5仿淘寶,京東實現(xiàn)紅包雨效果的方法大概了解了嗎？希望文章內(nèi)容對大家有所幫助。如果想了解更多相關(guān)文章內(nèi)容，歡迎關(guān)注創(chuàng)新互聯(lián)網(wǎng)站制作公司行業(yè)資訊頻道。
