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JavaScript实现五子棋游戏的方法详解

作者:webbc

这篇文章主要介绍了JavaScript实现五子棋游戏的方法,结合实例形式详细分析了javascript实现五子棋游戏的具体步骤、原理与相关操作技巧,需要的朋友可以参考下

本文实例讲述了JavaScript实现五子棋游戏的方法。分享给大家供大家参考,具体如下:

最近半个月一直在看深入的学习JavaScript,里面有很多重点和难点,比如闭包、词法分析、面向对象等。今天给大家分享一个由JavaScript编写的五子棋游戏,主要用到JavaScript的面向对象、事件委托、闭包等知识,还是挺有分量的,正好可以检测学习的成果。

老规矩,先上图,再说话。

效果图:

这里写图片描述

五子棋素材图:

这里写图片描述

代码:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <title>HTML五子棋游戏</title>
  <link rel="stylesheet" href="">
  <script>
    //五子棋的构造函数
    function Game(){
      this.isWin = false;//游戏是否结束标志
    }
    //闭包计棋器
    Game.cnt = (function(){
      var curr = 'black';
      return function(){
        var tmp = curr;
        if(curr == 'black'){
          curr = 'white';
        }else{
          curr = 'black';
        }
        return tmp;
      }
    })();
    //下棋函数
    Game.xiaQi = function(g){
      //判断选择的位置是否已经下过棋了
      if(this.style.backgroundImage.indexOf('gif') >= 0){
        alert('这里已经下过棋了');
        return ;
      }
      var color = Game.cnt();
      this.style.backgroundImage = "url(./images/"+color+".gif)";
      Game.judge.call(this,color,g);//判定函数
    }
    //判定游戏是否结束
    Game.judge = function(color,g){
      var tds = document.getElementsByTagName('td');
      //获取当前棋子所下的位置
      var curr = {x:this.cellIndex,y:this.parentElement.rowIndex,color:color};
      var line = ['','','',''];//表示当前棋子的横、竖、左斜、右斜方向的棋子
      //遍历255个棋格,看看是否能赢
      for(var i=0,tmp={};i<tds.length;i++){
        tmp = {x:tds[i].cellIndex,y:tds[i].parentElement.rowIndex,color:'0'};
        if(tds[i].style.backgroundImage.indexOf('black') >= 0){
          tmp.color = 'b';
        }else if(tds[i].style.backgroundImage.indexOf('white') >= 0){
          tmp.color = 'w';
        }
        //获取当前棋子的横向其他棋子的坐落情况
        if(curr.y == tmp.y){
          line[0] += tmp.color;
        }
        //获取当前棋子的竖向其他棋子的坐落情况
        if(curr.x == tmp.x){
          line[1] += tmp.color;
        }
        //获取当前棋子的左斜方向其他棋子的坐落情况
        if(curr.x+curr.y == tmp.x+tmp.y){
          line[2] += tmp.color;
        }
        //获取当前棋子的右斜方向其他棋子的坐落情况
        if(curr.x-tmp.x == curr.y-tmp.y){
          line[3] += tmp.color;
        }
      }
      color = color == 'black'?'bbbbb':'wwwww';
      //判断是否五子连珠
      for(var i=0;i<line.length;i++){
        if(line[i].indexOf(color) >=0){
          alert('你赢了');
          g.isWin = true;
          break;
        }
      }
    }
    //页面加载完成
    window.onload = function(){
      var g = new Game();
      document.getElementsByTagName('table')[0].onclick = function(ev){
        //判断是否已经赢得游戏
        if(g.isWin){
          alert('此局已结束,请重新开始');
          return;
        }
        Game.xiaQi.call(ev.srcElement,g);//下棋
      }
    }
  </script>
</head>
<style>
  table{
  border-collapse:collapse;
  width:540px;
  height:540px;
  border:solid 1px blue;
  margin:auto;
  background-image: url('./images/background.gif');
}
</style>
<body>
<table>
  <tr>
    <td>&nbsp;</td>
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  </tr>
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</table>
</body>
</html>

今天不知道怎么搞的,写博客的时候上传不了图片,还好我机智,把图片存到GitHub上,好了,来讲代码。首先,我必须先说明一下,我觉得代码还有很大的优化空间,感兴趣的同学可以继续研究。

实现思路:首先创建一个表格,共15行,15列,把背景改成棋盘的图片,给这个table添加onclick事件,这里使用到了事件委托,事件委托我在之前的文章有介绍过,感兴趣的同学可以去看看。去调用xiaQi函数,在下棋函数中,先判断选择的位置是否已经下过棋了,使用闭包获取下一个棋子的颜色,然后调用judge函数,在函数中先获取当前棋子所下的位置,遍历255个棋格,看看是否能赢,判断是否五子连珠,如果有则游戏结束。

PS:这里再为大家推荐另一款本站的js版五子棋游戏供大家参考(其AI相对简单一些)

在线五子棋游戏:
http://tools.jb51.net/games/wuziqi

更多关于JavaScript相关内容感兴趣的读者可查看本站专题:《JavaScript数据结构与算法技巧总结》、《JavaScript数学运算用法总结》、《JavaScript切换特效与技巧总结》、《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》及《JavaScript遍历算法与技巧总结

希望本文所述对大家JavaScript程序设计有所帮助。

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