Html5斗地主棋牌架设Canvas实现斗地主游戏代码解析

现在我看了h5.zhengtuwl.comhtml5以及canvas相关知识和斗地主的demo后，自己用demo上的素材试着写了个斗地主，代码没重构好，欢迎赐教。

话不多说，下面就一步一步解释下吧

只有一个common.js 文件

1、资源类

var Resource = Class.create();
$.extend(Resource.prototype, {
initialize: function () { },
Images: [
{ path: 'img/bg1.png', x: 0, y: 0, w: 800, h: 480, data: null, type: 61, visible: true },
{ path: 'img/BeiMian.jpg', x: 320, y: 5, w: 100, h: 121, data: null, type: 62, visible: true },
{ path: 'img/btn.jpg', x: 300, y: 281, w: 140, h: 50, data: null, type: 63, visible: true, text: '开始', textX: 366, textY: 310 },
{ x: 0, y: 0, type: 66, isText: true, visible: false },
{ path: 'img/1.jpg', data: null, type: 16, visible: false },
{ path: 'img/2.jpg', data: null, type: 17, visible: false },
{ path: 'img/3.jpg', data: null, type: 3, visible: false, se: 1 },
{ path: 'img/4.jpg', data: null, type: 4, visible: false, se: 1 },
{ path: 'img/5.jpg', data: null, type: 5, visible: false, se: 1 },
{ path: 'img/6.jpg', data: null, type: 6, visible: false, se: 1 },
{ path: 'img/7.jpg', data: null, type: 7, visible: false, se: 1 },
{ path: 'img/8.jpg', data: null, type: 8, visible: false, se: 1 },
{ path: 'img/9.jpg', data: null, type: 9, visible: false, se: 1 },
{ path: 'img/10.jpg', data: null, type: 10, visible: false, se: 1 },
{ path: 'img/11.jpg', data: null, type: 11, visible: false, se: 1 },
{ path: 'img/12.jpg', data: null, type: 12, visible: false, se: 1 },
{ path: 'img/13.jpg', data: null, type: 13, visible: false, se: 1 },
{ path: 'img/14.jpg', data: null, type: 14, visible: false, se: 1 },
{ path: 'img/15.jpg', data: null, type: 15, visible: false, se: 1 },
{ path: 'img/16.jpg', data: null, type: 3, visible: false, se: 4 },
{ path: 'img/17.jpg', data: null, type: 4, visible: false, se: 4 },
{ path: 'img/18.jpg', data: null, type: 5, visible: false, se: 4 },
{ path: 'img/19.jpg', data: null, type: 6, visible: false, se: 4 },
{ path: 'img/20.jpg', data: null, type: 7, visible: false, se: 4 },
{ path: 'img/21.jpg', data: null, type: 8, visible: false, se: 4 },
{ path: 'img/22.jpg', data: null, type: 9, visible: false, se: 4 },
{ path: 'img/23.jpg', data: null, type: 10, visible: false, se: 4 },
{ path: 'img/24.jpg', data: null, type: 11, visible: false, se: 4 },
{ path: 'img/25.jpg', data: null, type: 12, visible: false, se: 4 },
{ path: 'img/26.jpg', data: null, type: 13, visible: false, se: 4 },
{ path: 'img/27.jpg', data: null, type: 14, visible: false, se: 4 },
{ path: 'img/28.jpg', data: null, type: 15, visible: false, se: 4 },
{ path: 'img/29.jpg', data: null, type: 3, visible: false, se: 3 },
{ path: 'img/30.jpg', data: null, type: 4, visible: false, se: 3 },
{ path: 'img/31.jpg', data: null, type: 5, visible: false, se: 3 },
{ path: 'img/32.jpg', data: null, type: 6, visible: false, se: 3 },
{ path: 'img/33.jpg', data: null, type: 7, visible: false, se: 3 },
{ path: 'img/34.jpg', data: null, type: 8, visible: false, se: 3 },
{ path: 'img/35.jpg', data: null, type: 9, visible: false, se: 3 },
{ path: 'img/36.jpg', data: null, type: 10, visible: false, se: 3 },
{ path: 'img/37.jpg', data: null, type: 11, visible: false, se: 3 },
{ path: 'img/38.jpg', data: null, type: 12, visible: false, se: 3 },
{ path: 'img/39.jpg', data: null, type: 13, visible: false, se: 3 },
{ path: 'img/40.jpg', data: null, type: 14, visible: false, se: 3 },
{ path: 'img/41.jpg', data: null, type: 15, visible: false, se: 3 },
{ path: 'img/42.jpg', data: null, type: 3, visible: false, se: 2 },
{ path: 'img/43.jpg', data: null, type: 4, visible: false, se: 2 },
{ path: 'img/44.jpg', data: null, type: 5, visible: false, se: 2 },
{ path: 'img/45.jpg', data: null, type: 6, visible: false, se: 2 },
{ path: 'img/46.jpg', data: null, type: 7, visible: false, se: 2 },
{ path: 'img/47.jpg', data: null, type: 8, visible: false, se: 2 },
{ path: 'img/48.jpg', data: null, type: 9, visible: false, se: 2 },
{ path: 'img/49.jpg', data: null, type: 10, visible: false, se: 2 },
{ path: 'img/50.jpg', data: null, type: 11, visible: false, se: 2 },
{ path: 'img/51.jpg', data: null, type: 12, visible: false, se: 2 },
{ path: 'img/52.jpg', data: null, type: 13, visible: false, se: 2 },
{ path: 'img/53.jpg', data: null, type: 14, visible: false, se: 2 },
{ path: 'img/54.jpg', data: null, type: 15, visible: false, se: 2 }
]
});

Resource.Images是素材数组(几个按钮，文本，54张牌,背景图片等),大家可以下载demo看看
2、Lables类,在Canvas画布上画文本的,比如按钮文字,相关知识请看canvas教程

var Labels = Class.create();
$.extend(Labels.prototype, {
initialize: function (cxt) {
this.cxt = cxt;
},
setText: function (text, postion) {
this.cxt.font = 'bold 20px serif';
this.cxt.fillStyle = '#000000';
this.cxt.textAlign = 'center';
this.cxt.fillText(text, postion.x, postion.y);
}
});

这个类的方法setText主要是根据设置的字体，字体大小，字体颜色，在Canvas上画文本的，this.cxt这个是canvas上下文(每个教程的叫法不一样)，首先this.cxt.font = 'bold 20px serif';这个是设置字体大小，样式等，this.cxt.fillStyle = '#000000';这个

是设置字体颜色，this.cxt.textAlign = 'center';这个是设置字体对齐方式,this.cxt.fillText(text, postion.x, postion.y);这个是开始在canvas上画文本,postion.x, postion.y分别是x坐标和y坐标。

3、DdZGame游戏类，主要功能就是初始化斗地主，发牌，抢地主等，出牌未完待续，后续更新

var DdZGame = Class.create();
DdZGame.Statics = { DealedNums: 0, isLeftFirstDeal: true };
$.extend(DdZGame.prototype, {
initialize: function () {
DdZGame.Statics.IsGetLander = false;
DdZGame.Statics.DealTime = 66;
this.leftPokers = [];
this.rightPokers = [];
this.myPokers = [];
this.LastPokers = [];//最后3张牌

this.leftPlays = [];
this.rightPlays = [];
this.myPlays = [];

this.myBtnPostion = { y: 245, x: 162 };

this.isStart = false;

this.Res = new Resource();

this.allPokers = new Array();

this.Lander = 0;//地主,1右边,2My,3左边
this.isGetLander = {};
this.GmCanvas = document.getElementById('gmCanvas');


this.cxt = this.GmCanvas.getContext('2d');
this.Lbl = new Labels(this.cxt);
this.init();
this.initEvt();
},
initEvt: function () {
this.GmCanvas.onclick = $.proxy(function (e) {
var box = this.GmCanvas.getBoundingClientRect();

DdZGame.Statics.MousePostion = { x: e.pageX - box.left, y: e.pageY -