js html5 css俄罗斯方块游戏再现
这个游戏主要分为三部份，HTML5+CSS+JAVASCRIPT来完成的。在这里详细讲一下js的代码。因为这个游戏的主要部分其实就是js。
大多数都是靠js来完成的。
完成后的效果如下：
HTML代码：
<body> <div class="wrap"> <div class="play_wrap"> <div></div> <div class="play_menu"> <p>下一个：</p> <div></div> <a class="play_btn" href="javascript:void(0);" unselectable="on">开始</a><a class="play_btn" href="javascript:void(0)" unselectable="on"><span class="level_text">中等</span class="level_icon"></span></a> <div class="level_menu"> <ul> <li><a href="javascript:void(0)" level=0>简单</a></li> <li><a href="javascript:void(0)" level=1>中等</a></li> <li><a href="javascript:void(0)" level=2>困难</a></li> </ul> </div> <p> 分数：<span>0</span> </p> <p> 方向：<span>bottom</span> </p> <p> 说明：<br> -“下”、“左”、“右”键控制方向，“上”为变形；<br> -游戏开始前、暂停时可调整难度；<br> -难度分“简单”、“中等”、“困难”三级；<br> -对应的分值为10、20、40；<br> -多行同时消去的倍数为1、4、10、20； </p> </div> </div> </div> </body>CSS代码：
<style> body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,button,textarea,p,blockquote,th,td { padding: 0; margin: 0; } body { font-family: "Helvetica Neue", "Hiragino Sans GB", "Segoe UI", "Microsoft Yahei", "微软雅黑", Tahoma, Arial, STHeiti, sans-serif; font-size: 12px; background: #fff; color: #333; } a{ outline:none; -moz-outline:none; text-decoration: none; } .wrap{ width:1000px; margin:80px auto; } .play_wrap{ padding-left:260px; } #play_area{ float:left; width:300px; height:480px; margin:auto; background-color:#fefefe; border-radius:2px; color:black; box-shadow:0px 0px 8px #e5e5e5; padding:1px 0 0 1px; } #play_area .play_cell{ float:left; width:19px; height:19px; border:1px solid #eee; margin:-1px 0 0 -1px; } #play_area .play_cell.active{ background:#999; border:1px solid #ccc; } #play_area .play_cell.goal{ background:#0c0; } .play_menu{ float:left; margin-left:60px; font-size:14px; padding-top:20px; } .play_menu #play_nextType{ width:60px; height:60px; padding:1px 0 0 1px; margin:10px 0 20px 0; } .play_menu .play_mini_cell{ float:left; width:14px; height:14px; border:1px solid #fff; margin:-1px 0 0 -1px; } .play_menu .play_mini_cell.active{ background:#999; border:1px solid #ccc; } .play_menu p { line-height:200%; clear:both; } .play_menu a.play_btn{ display:block; margin-bottom:20px; width:80px; height:28px; line-height:28px; text-align:center; text-decoration: none; color:#333; background:#fefefe; border:1px solid #eee; border-radius: 2px; box-shadow: 1px 1px 2px #eee; border-color:#ddd #d2d2d2 #d2d2d2 #ddd; outline: none; -moz-outline:none; } .play_menu a.play_btn:hover{ background-color:#fcfcfc; border-color:#ccc; box-shadow: inset 0 -2px 6px #eee; } .play_menu a#play_btn_level{ position:relative; margin-bottom:30px; } .level_text{ margin-left:-10px; } .level_icon{ display: block; position:absolute; top:12px; right:16px; width:0; height:0; overflow: hidden; border:5px solid #FFF; border-color: #999 transparent transparent transparent; } .level_menu{ position:absolute; margin:-30px 0 0 1px; display:none; } .level_menu ul{ list-style:none; } .level_menu li{ float:left; } .level_menu li a{ display:block; padding:3px 10px; border:1px solid #e8e8e8; margin-left:-1px; color:#09c; } .level_menu li a:hover{ background:#09c; color:#fefefe; } </style>HTML的代码其实就是一个游戏结构的框架，这里框架其实就是几个div的东西，所以不会太长，理解起来也是挺容易的。而CSS则是控制网页的布局与美观，所以要想吸引玩家，那CSS方面必须下功夫，而这里的CSS只是其实就将游戏区域与菜单区域分为左右两边了。而游戏域内的一个个框其实就是多个div，整齐排列在一起而已。
下面到了js了：
因为在代码已经将一些重要的部分做了注释，所以就不打算逐步分去分析了。说一下整体的写法吧。其实它首先是直接定义了一些图形的坐标，然后根据这些坐标画出一个下一个的图形出来，之后就是利用一个setInterval函数在游戏区域标出每个点，如果不能下落了就直接清除掉时间函数，之后在调用一个创建时间函数的函数出来，在画一个图形出来。具体的细节就看代码吧。
<script type="text/javascript" src="jquery-1.6.2.min.js"></script> <script type="text/javascript"> var Tetris = function(options){ //方块区域 this.e_playArea = $("#play_area"); //开始按钮 this.e_startBtn = $("#play_btn_start"); //分数 this.e_playScore = $("#play_score"); //方向 this.e_playDirection = $("#play_direction"); //等级按钮 this.e_levelBtn = $("#play_btn_level"); //等级菜单 this.e_levelMenu = $("#play_menu_level"); //下一个方块的类型 this.e_nextType = $("#play_nextType"); //总的列数 this.cellCol = 15; //总的行数 this.cellRow = 24; //每个小方块的属性数组 this.cellArr = []; //保存右上方下一个那里的小图形数组 this.miniCellArr = []; //分数 this.score = 0; //方向 this.direction = "bottom"; //定时器的ID this.timer = null; //定时器的时间数组 this.interval = [600,300,100]; //等级的分数数组 this.levelScore = [10,20,40]; //消除的行数多少而给的倍数 this.doubleScore = [1,4,10,20]; //默认等级1 this.level = 1; //游戏是否进行 this.playing = false; //游戏暂停标记 this.turning = false; //游戏结束标记 this.death = false; //一开始方块列出现的位置 this.offsetCol = Math.floor(this.cellCol/2); //一开始方块行出现的位置 this.offsetRow = -3; this.tetrisArr = []; /* 0,1,15,16 0,1,15,16 */ this.tetrisArr[0] = [ [0,1,this.cellCol,this.cellCol+1], [0,1,this.cellCol,this.cellCol+1] ]; /* 1,14,15,16 0,15,30,31 14,15,16,29 -1,0,15,30 */ this.tetrisArr[1] = [ [1,this.cellCol-1,this.cellCol,this.cellCol+1], [0,this.cellCol,this.cellCol*2,this.cellCol*2+1], [this.cellCol-1,this.cellCol,this.cellCol+1,this.cellCol*2-1], [-1,0,this.cellCol,this.cellCol*2] ]; /* -1,14,15,16 0,1,15,30 14,15,16,31 0,15,29,30 */ this.tetrisArr[2] = [ [-1,this.cellCol-1,this.cellCol,this.cellCol+1], [0,1,this.cellCol,this.cellCol*2], [this.cellCol-1,this.cellCol,this.cellCol+1,this.cellCol*2+1], [0,this.cellCol,this.cellCol*2-1,this.cellCol*2] ]; /* 0,15,16,31 15,16,29,30 */ this.tetrisArr[3] = [ [0,this.cellCol,this.cellCol+1,this.cellCol*2+1], [this.cellCol,this.cellCol+1,this.cellCol*2-1,this.cellCol*2] ]; /* 0,14,15,29 14,15,30,31 */ this.tetrisArr[4] = [ [0,this.cellCol-1,this.cellCol,this.cellCol*2-1], [this.cellCol-1,this.cellCol,this.cellCol*2,this.cellCol*2+1] ]; /* 0,14,15,16 0,15,16,30 14,15,16,30 0,14,15,30 */ this.tetrisArr[5] = [ [0,this.cellCol-1,this.cellCol,this.cellCol+1], [0,this.cellCol,this.cellCol+1,this.cellCol*2], [this.cellCol-1,this.cellCol,this.cellCol+1,this.cellCol*2], [0,this.cellCol-1,this.cellCol,this.cellCol*2] ]; /* 0,15,30,45 14,15,16,17 */ this.tetrisArr[6] = [ [0,this.cellCol,this.cellCol*2,this.cellCol*3], [this.cellCol-1,this.cellCol,this.cellCol+1,this.cellCol+2] ]; this.tetrisType = [1,1]; this.tetrisType = [1,0]; this.tetrisTypeArr = []; this.preTetris = []; this.thisTetris = []; this.fullArr = []; this.start(); } Tetris.prototype = { //开始入口函数 start : function(){ this.init(); this.menu(); this.control(); }, //选择设置 setOptions : function(options){ this.score = options.score === 0 ? options.score : (options.score || this.score); this.level = options.level === 0 ? options.level : (options.level || this.level); }, resetArea : function(){ $(".play_cell.active").removeClass("active"); this.setOptions({ "score" : 0 }); this.e.playScore.html(this.score); }, //菜单 menu : function(){ var self = this; this.e_startBtn.click(function(){ self.e_levelMenu.hide(); if(self.playing){ self.pause(); } else if(self.death){ self.resetArea(); self.play(); } else { self.play(); } }); this.e_levelBtn.click(function(){ if(self.playing)return; self.e_levelMenu.toggle(); }); this.e_levelMenu.find("a").click(function(){ self.e_levelMenu.hide(); self.e_levelBtn.find(".level_text").html($(this).html()); self.setOptions({ "level" : $(this).attr("level") }); }); }, play : function(){ var self = this; this.e_startBtn.html("暂停"); this.playing = true; this.death = false; if(this.turning){ this.timer = setInterval(function(){ self.offsetRow++; self.showTetris(); },this.interval[this.level]); } else { this.nextTetris(); } }, pause : function(){ this.e_startBtn.html("开始"); this.playing = false; clearTimeout(this.timer); }, //初始化游戏 init : function(){ var self =this,_ele,_miniEle,_arr = []; //创建小方块放进cellArr里 for(var i=0;i<this.cellCol;++i){ for(var j=0;j<this.cellRow;++j){ _ele = document.createElement("div"); _ele.className = "play_cell"; _ele.id = "play_cell_"+ i + "_" + j; this.cellArr.push($(_ele)); this.e_playArea.append(_ele); } } //创建下一个图形的小方块 for(var m=0;m<16;++m){ _miniEle = document.createElement("div"); _miniEle.className = "play_mini_cell"; this.miniCellArr.push($(_miniEle)); this.e_nextType.append(_miniEle); } //保存三维数组tetrisArr的前两维数据编号，k为其第一维编号，j为其二维 for(var k=0,klen=this.tetrisArr.length;k<klen;++k){ for(var j=0,jlen=this.tetrisArr[k].length;j<jlen;++j){ this.tetrisTypeArr.push([k,j]); } } //下一个图形的【x】【y】 this.nextType = this.tetrisTypeArr[Math.floor(this.tetrisTypeArr.length*Math.random())]; this.showNextType(); }, //按键控制函数 control : function(){ var self = this; $("html").keydown(function(e){ if(!self.playing) return !self.playing; switch(e.keyCode){ case 37: self.direction = "left"; break; case 38: self.direction = "top"; break; case 39: self.direction = "right"; break; case 40: self.direction = "bottom"; break; default: return; break; } //显示当前的按键操作 self.e_playDirection.html(self.direction); //实行按键的操作函数 self.drive(); return false; }); }, //改变图形的状态 changTetris : function(){ var _len = this.tetrisArr[this.tetrisType[0]].length; if(this.tetrisType[1] < _len-1){ this.tetrisType[1]++; } else { this.tetrisType[1] = 0; } }, //按键的操作函数 drive : function(){ switch(this.direction){ case "left": if(this.offsetCol>0){ this.offsetCol--; } break; case "top": this.changTetris(); break; case "right": this.offsetCol++; break; case "bottom": if(this.offsetRow<this.cellRow-2){ this.offsetRow++; } break; default: break; } //显示图形的函数 this.showTetris(this.direction); }, //显示图形的函数 showTetris : function(dir){ var _tt = this.tetrisArr[this.tetrisType[0]][this.tetrisType[1]],_ele,self=this; this.turning = true; this.thisTetris = []; for(var i=_tt.length-1;i>=0;--i){ _ele = this.cellArr[_tt[i]+this.offsetCol+this.offsetRow*this.cellCol]; //规定左右移动不能超出边框 if(this.offsetCol<7&&(_tt[i]+this.offsetCol+1)%this.cellCol==0){ this.offsetCol++; return; }else if(this.offsetCol>7&&(_tt[i]+this.offsetCol)%this.cellCol==0){ this.offsetCol--; return; } //判断是否下落是与方块碰撞了，排除向左移动时碰到左边的方块而停止下落 if(_ele&&_ele.hasClass("active")&&dir=="left"&&($.inArray(_ele,this.preTetris)<0)){ if(($.inArray(_ele,this.cellArr)-$.inArray(this.preTetris[i],this.cellArr))%this.cellCol!=0){ this.offsetCol++; return; } } if(_ele&&_ele.hasClass("active")&&dir=="right"&&($.inArray(_ele,this.preTetris)<0)){ if(($.inArray(_ele,this.cellArr)-$.inArray(this.preTetris[i],this.cellArr))%this.cellCol!=0){ this.offsetCol--; return; } } //找到某个div进行下落的过程 //否则找不到直接结束下落的过程 if(_ele){ //找到一个div有class=active，而且不是上一次自身的位置，那么就停止 //向下走了，因为遇到障碍物了 //否则这个div符合，存起来 if(_ele.hasClass("active")&&($.inArray(_ele,this.preTetris)<0)){ this.tetrisDown(); return; } else { this.thisTetris.push(_ele); } } else if(this.offsetRow>0){ this.tetrisDown(); return; } } //将上一次的位置的标记全部去除 for(var j=0,jlen=this.preTetris.length;j<jlen;++j){ this.preTetris[j].removeClass("active"); } //标记这一次的位置 for(var k=0,klen=this.thisTetris.length;k<klen;k++){ this.thisTetris[k].addClass("active"); } //储存起现在的位置，会成为下一次的前一次位置 this.preTetris = this.thisTetris.slice(0); }, //无法下落时进行的函数 tetrisDown : function(){ clearInterval(this.timer); var _index; this.turning = false; //是否填充满一行的检测 forOuter:for(var j=0,jlen=this.preTetris.length;j<jlen;++j){ _index = $.inArray(this.preTetris[j],this.cellArr); for(var k=_index-_index%this.cellCol,klen=_index-_index%this.cellCol+this.cellCol;k<klen;++k){ if(!this.cellArr[k].hasClass("active")){ continue forOuter; } } if($.inArray(_index-_index%this.cellCol,this.fullArr)<0) this.fullArr.push(_index-_index%this.cellCol); } if(this.fullArr.length){ this.getScore(); return; } //如果图形在6-9的div内被标记，那么游戏结束 for(var i=6;i<9;++i){ if(this.cellArr[i].hasClass("active")){ this.gameOver(); alert("you lost!"); return; } } this.nextTetris(); }, //下一个图形 nextTetris : function(){ var self = this; clearInterval(this.timer); this.preTetris = []; this.offsetRow = -2; this.offsetCol = 7; this.tetrisType = this.nextType; this.nextType = this.tetrisTypeArr[Math.floor(this.tetrisTypeArr.length*Math.random())]; this.showNextType(); this.timer = setInterval(function(){ self.offsetRow++; self.showTetris(); },this.interval[this.level]); }, showNextType : function(){ //_nt为找到在this.nextType[0]行，this.nextType[1]列的一行数据 var _nt = this.tetrisArr[this.nextType[0]][this.nextType[1]],_ele,_index; //找到class=active的元素，之后全部删除class元素 this.e_nextType.find(".active").removeClass("active"); for(var i=0,ilen=_nt.length;i<ilen;++i){ //因为offsetCol的最小值只能为2，所以在tetrisArr数组中赋的值都减了2 //这里要加回2来处理，才能在小的视图里安放图形 if(_nt[i]>this.cellCol-2){ _index = (_nt[i]+2)%this.cellCol-1+4*parseInt((_nt[i]+2)/this.cellCol); }else{ _index = _nt[i] + 1; } _ele = this.miniCellArr[_index]; _ele.addClass("active"); } }, //获取分数 getScore : function(){ var self = this; //对完整的行消除，对元素进行向下移动 for(var i=this.fullArr.length-1;i>=0;--i){ for(var j=0;j<this.cellCol;++j){ this.cellArr[j+this.fullArr[i]].removeClass("active"); if(j==this.cellCol-1){ for(var k=this.fullArr[i];k>=0;--k){ if(this.cellArr[k].hasClass("active")){ this.cellArr[k].removeClass("active"); this.cellArr[k+this.cellCol].addClass("active"); } } } } } this.score += this.levelScore[this.level]*this.doubleScore[this.fullArr.length-1]; this.e_playScore.html(this.score); this.fullArr = []; this.nextTetris(); }, //游戏结束 gameOver : function(){ this.death = true; this.pause(); return; } }; $(document).ready(function(e){ var t = new Tetris(); }); </script>《js html5 css俄罗斯方块游戏再现》阅读地址：http://www.haoshilao.net/12228/
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