架构属于您自己的WebApp-2048游戏

来源:互联网 发布:如何解绑淘宝手机号码 编辑:程序博客网 时间:2024/06/06 07:44

我利用了周六,周日两天的时间,完完整整地写出一个2048的web游戏,其中所涉及的技术:Html+css+javascript。演示地址:

http://jyuan.sinaapp.com/games/2048/

首先,我们拿到这样一个任务,肯定是要玩一下2048这个游戏的。并不是单纯地玩,要想一下这个游戏的布局,思路等等 2048这个游戏是这样的:根据你的交互而进行下一步动作,这是什么意思呢?就是这个游戏的是否进行是根据你的按键来判断的,你所按的键分别是:上下左右。每一个格子移动的时候会做判断,例如向左移动:左边是没有数字的格子还是有数字的格子,这个数字是与当前移动的格子数字相等还是不相等,然后找到在哪个格子上显示对应的数,游戏的大概流程就是这样。

接着我们按照分析→设计→实现的思路:把我们的代码结构设计一下:首先我们需要一个index.html文件:里面存放着主页的布局:生成两个4*4的格子布局,第一个是没有数字的,宽高确定的能显示的;第二个是动态显示的,即是一开始不给它设置宽高,当用户移动的时候再动态显示出来。第二,需要一个样式表文件:2048.css。

接着重点是js文件,这里我们分为了三个不同功能的文件:①main2048.js:保存主体动作代码②shownumberAnimation.js:这个是包含数字出现和移动的动画代码
③support2048.js:这个是提供一些判断是否能够移动的代码。

接着,我们来看看代码的具体实现
index.html

<!DOCTYPE html><html>    <head>        <meta charset="utf-8" />        <meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0,minimum-scale=1.0,user-scalable=no" />        <title>2048</title>        <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>        <link rel="stylesheet" type="text/css" href="css/2048.css"/>        <script type="text/javascript" src="js/shownumberAnimation.js"></script>        <script type="text/javascript" src="js/support2048.js"></script>        <script type="text/javascript" src="js/main2048.js"></script>    </head>    <body>        <header><h1>2048</h1>        <a href="javascript:newGame();" id="newGameButton">NewGame</a>        <p>score:<span id="score">0</span></p>        </header>        <div id="grid-container">            <div class="grid-cell" id="grid-cell-0-0"></div>            <div class="grid-cell" id="grid-cell-0-1"></div>            <div class="grid-cell" id="grid-cell-0-2"></div>            <div class="grid-cell" id="grid-cell-0-3"></div>            <div class="grid-cell" id="grid-cell-1-0"></div>            <div class="grid-cell" id="grid-cell-1-1"></div>            <div class="grid-cell" id="grid-cell-1-2"></div>            <div class="grid-cell" id="grid-cell-1-3"></div>            <div class="grid-cell" id="grid-cell-2-0"></div>            <div class="grid-cell" id="grid-cell-2-1"></div>            <div class="grid-cell" id="grid-cell-2-2"></div>            <div class="grid-cell" id="grid-cell-2-3"></div>            <div class="grid-cell" id="grid-cell-3-0"></div>            <div class="grid-cell" id="grid-cell-3-1"></div>            <div class="grid-cell" id="grid-cell-3-2"></div>            <div class="grid-cell" id="grid-cell-3-3"></div>        </div>    </body></html>

2048.css

header{    display: block;    width: 100%;    text-align: center;    margin: 0 auto;}header h1{    font-family: "微软雅黑";    font-size: 40px;    font-weight: bold;}header #newGameButton{    display: block;    width:100px;    margin: 20px auto;    background-color: #c00;    border-radius:10px;    color: wheat;    text-decoration: none;    text-align: center;}header p{    text-align: center;}#grid-container{    width: 460px;    height: 460px;    padding: 20px;    margin: 20px auto;    border-radius:10px ;    background-color:#bbada0 ;    position: relative;}.grid-cell{    width: 100px;    height: 100px;    background-color: #ccc0b3;    border-radius: 6px;    position: absolute;}.number-cell{    position: absolute;    text-align: center;    border-radius:6px ;    line-height: 100px;    font-weight: bold;    font-family:arial;}

main2048.js

var board=new Array();var score=0;var hasConflicted=new Array();var startx=0;var starty=0;var endx=0;var endy=0;$(document).ready(function(){    newGame();    //自适应    forMobile();});function newGame(){    //初始化布局    init();    //随机生成数字    generateOnenumber();    generateOnenumber();    score=0;}function forMobile(){    $('#grid-container').css('width',gridContainerWidth-2*cellSpace);    $('#grid-container').css('height',gridContainerWidth-2*cellSpace);    $('#grid-container').css('padding',cellSpace);    $('#grid-container').css('border-radius',0.02*gridContainerWidth);    $('.grid-cell').css('width',cellSideLength);    $('.grid-cell').css('height',cellSideLength);    $('.grid-cell').css('border-radius',0.02*cellSideLength);}function init(){    for(var i=0;i<4;i++){        for(var j=0;j<4;j++){            var gridcell=$("#grid-cell-"+i+"-"+j);            gridcell.css('top',getTop(i));            gridcell.css('left',getLeft(j));        }    }    for(i=0;i<4;i++){        board[i]=new Array();        hasConflicted[i]=new Array();        for(j=0;j<4;j++){            board[i][j]=0;            hasConflicted[i][j]=false;        }    }    updateboardView();}function updateboardView(){    $('.number-cell').remove();    for(var i=0;i<4;i++)        for(var j=0;j<4;j++){            $('#grid-container').append('<div class="number-cell" id='+"number-cell-"+i+"-"+j+">"+"<div>");            var numbercell=$("#number-cell-"+i+"-"+j)            if(board[i][j]==0){                numbercell.css("width",'0');                numbercell.css("height",'0');                numbercell.css("top",getTop(i)+cellSideLength/2);                numbercell.css("left",getLeft(j)+cellSideLength/2);            }            else{                numbercell.css("width",cellSideLength);                numbercell.css("height",cellSideLength);                numbercell.css("top",getTop(i));                numbercell.css("left",getLeft(j));                numbercell.css("background-color",getNumberCellBgcolor(board[i][j]));                numbercell.css("color",getNumberCellColor(board[i][j]));                numbercell.text(rank(board[i][j]));            }            hasConflicted[i][j]=false;        }        $('.number-cell').css('line-height',cellSideLength+'px');        $('.number-cell').css('font-size',0.2*cellSideLength+'px');}function generateOnenumber(){    //首先判断有没有空间可用    if(nospace(board)){        return false;    }    //生成随机位置    var randomx=parseInt(Math.floor(Math.random()*4));    var randomy=parseInt(Math.floor(Math.random()*4));    var times=0;    while(times<50){        if(board[randomx][randomy]==0)            break;        else{             randomx=parseInt(Math.floor(Math.random()*4));             randomy=parseInt(Math.floor(Math.random()*4));        }           times++;    }    if(times==50){        for(var i=0;i<4;i++)            for(var j=0;j<4;j++){                if(board[i][j]==0){                    randomx=i;                     randomy=j;                }                   }    }    //生成随机数字    var randomnum=Math.random()<0.5?2:4;    //在随机位置上显示随机数字    board[randomx][randomy]=randomnum;    showNumberwithAnimation(randomx,randomy,randomnum);    return true;}$(document).keydown(function(event){    switch(event.keyCode){        case 37:              if(moveLeft()){                setTimeout('generateOnenumber()',210);                setTimeout("isGameOver()",300);            }                break;//左按键        case 38:          if(moveUp()){                setTimeout('generateOnenumber()',210);                setTimeout("isGameOver()",300);            }break;//上按键        case 39:          if(moveRight()){                setTimeout('generateOnenumber()',210);                setTimeout("isGameOver()",300);            }break;//右按键        case 40:          if(moveDown()){            setTimeout('generateOnenumber()',210);            setTimeout("isGameOver()",300);            }break;//下按键    }})//触控交互document.addEventListener('touchstart',function(event){    event.preventDefault();    startx=event.touches[0].pageX;    starty=event.touches[0].pageY;});document.addEventListener('touchend',function(event){    event.preventDefault();    endx=event.changedTouches[0].pageX;    endy=event.changedTouches[0].pageY;    var deltax=endx-startx;    var deltay=endy-starty;    //判断方向    if(Math.abs(deltax)>=Math.abs(deltay)){        if(deltax>0){            //moveRight            if(moveRight()){                setTimeout('generateOnenumber()',210);                setTimeout("isGameOver()",300);        }        }        else{            //moveLeft            if(moveLeft()){                setTimeout('generateOnenumber()',210);                setTimeout("isGameOver()",300);            }        }    }    else{        if(deltay>0){            //moveDown        if(moveDown()){            setTimeout('generateOnenumber()',210);            setTimeout("isGameOver()",300);        }        }        else{            //moveUp            if(moveUp()){                setTimeout('generateOnenumber()',210);                setTimeout("isGameOver()",300);        }    }}});function isGameOver(){    if(nospace(board)&&nomove(board)){        alert("GameOver");        newGame();    }}function moveLeft(){    if(!canMoveLeft(board))        return false;        //moveleft    for(var i=0;i<4;i++){        for(var j=0;j<4;j++){            if(board[i][j]!=0){                for(var k=0;k<j;k++){                    if(board[i][k]==0 &&noBlockHorizonta(i,k,j,board)){                        //move                        showMoveAnimation(i,j,i,k);                        board[i][k]=board[i][j];                        board[i][j]=0;                        continue;                       }                    else if(board[i][k]==board[i][j]&&noBlockHorizonta(i,k,j,board)&&!hasConflicted[i][k]){                        //move                        board[i][k]+=board[i][j];                        showMoveAnimation(i,j,i,k);                        board[i][j]=0;                        //add                        score+=board[i][k];                        updatescore(score);                        hasConflicted[i][k]=true;                        continue;                       }                }            }        }    }    setTimeout('updateboardView()',200);    return true;}function moveUp(){    if(!canMoveUp(board))        return false;        //moveup    /*for(var i=1;i<4;i++){        for(var j=0;i<4;j++){            if(board[i][j]!=0){                for(var k=0;k<i;k++){                    if(board[k][j]==0 &&noBlockVertical(i,j,k,board)){                        //move                        showMoveAnimaiton(i,j,k,j);                        board[k][j]=board[i][j];                        board[i][j]=0;                        continue;                       }                    else if(board[k][j]==board[i][j]&& noBlockVertical(i,j,k,board)){                        //move                        showMoveAnimaiton(i,j,k,j);                        board[k][j]+=board[i][j];                        board[i][j]=0;                        continue;                    }                }            }        }    }    setTimeout('updateboardView()',200);    return true;*/    //moveUp    for( var j = 0 ; j < 4 ; j ++ )        for( var i = 1 ; i < 4 ; i ++ ){            if( board[i][j] != 0 ){                for( var k = 0 ; k < i ; k ++ ){                    if( board[k][j] == 0 && noBlockVertical(j,k,i,board)){                        //move                        showMoveAnimation(i,j,k,j);                        board[k][j] = board[i][j];                        board[i][j] = 0;                        continue;                    }                    else if( board[k][j] == board[i][j] && noBlockVertical(j,k,i,board)&&!hasConflicted[k][j] ){                        //move                        showMoveAnimation(i,j,k,j);                        //add                        board[k][j] += board[i][j];                        board[i][j] = 0;                        score+=board[k][j];                        updatescore(score);                        hasConflicted[k][j]=true;                        continue;                    }                }            }        }    setTimeout("updateboardView()",200);    return true;}function moveRight(){    if(!canMoveRight(board))        return false;        //moveright    for(var i=0;i<4;i++){        for(var j=2;j>=0;j--){            if(board[i][j]!=0){                for(var k=3;k>j;k--){                    if(board[i][k]==0 &&noBlockHorizonta(i,j,k,board)){                        //move                        showMoveAnimation(i,j,i,k);                        board[i][k]=board[i][j];                        board[i][j]=0;                        continue;                       }                    else if(board[i][k]==board[i][j]&&noBlockHorizonta(i,j,k,board)&& !hasConflicted[i][k]){                        //move                        board[i][k]+=board[i][j];                        showMoveAnimation(i,j,i,k);                        board[i][j]=0;                        score+=board[i][k];                        updatescore(score);                        hasConflicted[i][k]=true;                        continue;                       }                }            }        }    }    setTimeout('updateboardView()',200);    return true;}function moveDown(){    if(!canMoveDown(board))        return false;        //movedown    for(var j=0;j<4;j++){        for(var i=2;i>=0;i--){            if(board[i][j]!=0){                for(var k=3;k>i;k--){                    if(board[k][j]==0 &&noBlockVertical(j,i,k,board)){                        //move                        showMoveAnimation(i,j,k,j);                        board[k][j]=board[i][j];                        board[i][j]=0;                        continue;                       }                    else if(board[k][j]==board[i][j]&&noBlockVertical(j,i,k,board)&&!hasConflicted[k][j]){                        //move                        showMoveAnimation(i,j,k,j);                        board[k][j]+=board[i][j];                        board[i][j]=0;                        score+=board[k][j];                        updatescore(score);                        hasConflicted[k][j]=true;                        continue;                       }                }            }        }    }    setTimeout('updateboardView()',200);    return true;}

shownumberAnimation.js

function showNumberwithAnimation(i,j,number){    var numbercell=$("#number-cell-"+i+"-"+j);    numbercell.css("background-color",getNumberCellBgcolor(number));    numbercell.css("color",getNumberCellColor(number));    numbercell.text(rank(number));    numbercell.animate(        {            width:cellSideLength,            height:cellSideLength,            top:getTop(i),            left:getLeft(j)             },300);}function showMoveAnimation(fromi,fromj,tox,toy){    var numbercell=$("#number-cell-"+fromi+"-"+fromj);    numbercell.animate(        {            top:getTop(tox),            left:getLeft(toy)        }    ,200);}function updatescore(score){    $('#score').text(score);}

support2048.js

documentWidth=window.screen.availWidth;if(documentWidth>500){        gridContainerWidth=500;        cellSideLength=100;        cellSpace=20;    }else{gridContainerWidth=0.92*documentWidth;cellSideLength=0.18*documentWidth;cellSpace=0.04*documentWidth;}function getTop(i){    return cellSpace+(cellSideLength+cellSpace)*i;}function getLeft(j){    return cellSpace+(cellSideLength+cellSpace)*j;}function getNumberCellBgcolor(number){    switch(number){        case 2: return '#EEE9BF';break;        case 4:return '#EEC900';break;        case 8:return '#EEE9BF';break;        case 16:return '#EE3A8C';break;        case 32:return '#EEE9BF';break;        case 64:return '#CDAD00';break;        case 128:return '#EE1289';break;        case 256:return '#AEEEEE';break;        case 512:return '#8B0000';break;    }    return "#EEE9BF";}function getNumberCellColor(number){    if(number==4){        return '#EE1289';    }    return 'black';}function nospace(borad){    for(var i=0;i<4;i++){        for(var j=0;j<4;j++){            if(borad[i][j]==0)                return false;        }    }    return true;}function canMoveLeft(board){    for(var i=0;i<4;i++){        for(var j=1;j<=3;j++){            if(board[i][j-1]==0 ||(board[i][j-1]==board[i][j])){                return true;            }        }    }    return false;}function canMoveUp(board){    for(var i=1;i<4;i++){        for(var j=0;j<4;j++){            if(board[i-1][j]==0 ||(board[i-1][j] == board[i][j])){                return true;            }        }    }    return false;}function canMoveRight(board){    for(var i=0;i<4;i++){        for(var j=0;j<3;j++){            if(board[i][j+1]==0 ||(board[i][j+1]==board[i][j])){                return true;            }        }    }    return false;}function canMoveDown(board){    for(var i=0;i<=3;i++){        for(var j=0;j<3;j++){            if(board[j+1][i]==0 ||(board[j+1][i]==board[j][i])){                return true;            }        }    }    return false;}function noBlockHorizonta(row,col1,col2,board){    for(var i=col1+1;i<col2;i++)    {        if(board[row][i]!=0)        return false;    }    return true;}function noBlockVertical(col,row1,row2,board){    for(var i=row1+1;i<row2;i++)    {        if(board[i][col]!=0)        return false;    }    return true;}function nomove(board){    if(canMoveDown(board)||canMoveLeft(board)||canMoveRight(board)||canMoveUp(board)){        return false;    }    return true;}function rank(number){switch(number){        case 2: return '青铜';break;        case 4:return '白银';break;        case 8:return '黄金';break;        case 16:return '白金';break;        case 32:return '钻石';break;        case 64:return '超凡大师';break;        case 128:return '最强王者';break;    }    return "最强王者";}

其实最重要的是分析→设计→实现这三个步骤想明白了,就迎刃而解了。

本文作者: By:罗坚元 http://blog.csdn.net/sunyuan_software

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