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原生JavaScript实现五子棋游戏

perkzAN27Xy 人气:0

1.HTML部分

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0, user-scalable=no">
  <title>五子棋</title>
  <style>
    * {
      margin: 0px;
      padding: 0px;
    }

    .box {
      border-spacing: 0px;
      border: 1px solid #3c3c3c;
      background-color: #e1e1e2;
      margin: auto;
    }
    
    .piece {
      border-spacing: 0px;
      border: 1px solid;    
    }
  </style>

</head>

<body>
  <script type="text/javascript" src="./Gobang.js"></script>
</body>

</html>

2.JavaScript部分

var ScreenWidth = {
  documentWidth: 500,
  containerWidth: 400, // 容器默认宽度
  cellWidth: 20 // 单元格宽度
}
if (document.documentElement.clientWidth < 500) {
  ScreenWidth.documentWidth = document.documentElement.clientWidth;
  ScreenWidth.containerWidth = ScreenWidth.documentWidth * 0.8;
  ScreenWidth.cellWidth = ScreenWidth.containerWidth * 0.05;
}
//常量
var reg = /\d{1,2}/g;
var white = []; // 放白子
var black = []; // 放黑子
var tempKey = false; // 判断是走黑子还是白子
var notOver = true; // 判断游戏是否结束
var tips = "白棋走"; // 提示走棋
var count = 0;//相连的个数
var bv = false; // 黑棋胜利
var wv = false; // 白棋胜利 
var yCanWin = [];// 同一竖元素存放的数组
var xCanWin = [];// 同一横元素存放的数组
var xyCanWin = [];// 同一正斜存放的数组
var yxCanWin = [];// 同一反斜存放的数组
// 用计时器监听是否胜利
var time = setInterval(function () {
  if (bv) {
    tips = "黑棋胜利";
    document.getElementsByTagName("span")[0].innerText = tips;
    for (var i = 0; i < document.getElementsByClassName("pieceBox").length; i++) {
      document.getElementsByClassName("pieceBox")[i].onclick = null;
    }
    clearInterval(time);
  }
  if (wv) {
    tips = "白棋胜利";
    document.getElementsByTagName("span")[0].innerText = tips;
    for (var i = 0; i < document.getElementsByClassName("pieceBox").length; i++) {
      document.getElementsByClassName("pieceBox")[i].onclick = null;
    }
    clearInterval(time);
  }
}, 100);
newGame();// 开始游戏
function newGame() {
  if (document.getElementsByTagName("table").length) {
    for (var i = 0; i < document.getElementsByTagName("table").length; i++) {
      document.getElementsByTagName("table")[i].remove();
    }
  }
  // 初始化以下内容
  bgInit();
  pieceInit();
  spanFn();
  white = [];
  black = [];
  tempKey = false;
  notOver = true;
  tips = "白棋走";
  count = 0;
  bv = false;
  xCanWin = [];
  yCanWin = [];
  xyCanWin = [];
  yxCanWin = [];
}

function spanFn() {
  var span = document.createElement("span");
  document.body.insertBefore(span, document.getElementsByTagName("script")[0]);
  span.innerText = tips;
}
// 棋盘初始化
function bgInit() {
  var table = document.createElement("table");
  table.className = "box"
  for (var y = 0; y < 20; y++) {
    var tr = document.createElement("tr");
    for (var x = 0; x < 20; x++) {
      var td = "<td class='box-" + y + "-" + x + "' style='width: " + ScreenWidth.cellWidth + "px; height: " + ScreenWidth.cellWidth + "px;border:1px solid #9c9c9c'></td>";
      tr.innerHTML += td;
    }
    table.appendChild(tr);
  }
  document.body.insertBefore(table, document.getElementsByTagName("script")[0]);
}

// 棋子初始化
function pieceInit() {
  var table = document.createElement("table");
  table.className = "piece"
  table.style = "position: absolute; top: 0; left:50%; margin-left:-" + (ScreenWidth.containerWidth + 42) / 2 + "px";
  for (var y = 0; y < 20; y++) {
    var tr = document.createElement("tr");
    for (var x = 0; x < 20; x++) {
      var td = "<td class='piece-" + y + "-" + x + " pieceBox' style='width: " + ScreenWidth.cellWidth + "px; height: " + ScreenWidth.cellWidth + "px;border:1px solid transparent;border-radius: 50%;'></td>";
      tr.innerHTML += td;
    }
    table.appendChild(tr);
  }
  document.body.insertBefore(table, document.getElementsByTagName("script")[0]);
}

// 走棋
for (var i = 0; i < document.getElementsByClassName("pieceBox").length; i++) {
  document.getElementsByClassName("pieceBox")[i].onclick = function () {
    if (tempKey) {
      this.style.backgroundColor = "#000";// 黑子
      tempKey = false;
      black.push(this.className.match(reg));
      victory(black, 0);//判断黑棋胜利与否
      if (notOver) {
        tips = tipsGo(tempKey);
        document.getElementsByTagName("span")[0].innerText = tips;
      }
    } else {
      this.style.backgroundColor = "#fff";// 白子
      tempKey = true;
      white.push(this.className.match(reg));
      victory(white, 1);//判断白棋胜利与否
      if (notOver) {
        tips = tipsGo(tempKey);
        document.getElementsByTagName("span")[0].innerText = tips;
      }
    }
    this.onclick = null;// 点击之后取消点击事件
  }
}

// 提示走黑还是走白
function tipsGo(tempKey) {
  if (tempKey) {
    return "黑棋走";
  } else {
    return "白棋走";
  }
}

/**
 *判断各种赢的方式
 *x代表很坐标,y代表纵坐标
 *1.竖赢,就是x值相同,取y值排序后比较
 *2.横赢,就是y值相同,取x值排序后比较
 *3.正斜赢,x+y相同的值,取x或y排序后比较
 *4.反斜赢,x-y相同的值,取x或y排序后比较
 */
function victory(target, c) {
  if (target.length >= 5) {
    // 1.竖赢yCanWin
    for (var i = 0; i < target.length; i++) {
      for (var j = 0; j < target.length; j++) {
        if (target[j][1] == target[i][1]) {
          yCanWin.push(target[j]);//把x相同的值放入数组yCanWin
        }
      }
      yWin(yCanWin, c);
      yCanWin = [];
    }
    // 2.横赢xCanWin
    for (var m = 0; m < target.length; m++) {
      for (var n = 0; n < target.length; n++) {
        if (target[n][0] == target[m][0]) {
          xCanWin.push(target[n]);//把y相同的值放入数组xCanWin
        }
      }
      xWin(xCanWin, c);
      xCanWin = [];
    }
    // 3.正斜赢xyCanWin(左下到右上)
    for (var a = 0; a < target.length; a++) {
      for (var b = 0; b < target.length; b++) {
        if (parseInt(target[b][0]) + parseInt(target[b][1]) == parseInt(target[a][0]) + parseInt(target[a][1])) {
          xyCanWin.push(target[b])
        }
      }
      yWin(xyCanWin, c);
      xyCanWin = [];
    }
    // 4.反斜赢yxCanWin(左上到右下)
    for (var v = 0; v < target.length; v++) {
      for (var w = 0; w < target.length; w++) {
        if (parseInt(target[w][0]) - parseInt(target[w][1]) == parseInt(target[v][0]) - parseInt(target[v][1])) {
          yxCanWin.push(target[w])
        }
      }
      xWin(yxCanWin, c);
      yxCanWin = [];
    }
  }
}
// 棋的竖赢条件(棋的正斜赢条件)
function yWin(yCanWin, c) { // c = 0代表黑子 c = 1代表白子
  var sortArray = [];//排序数组  
  for (var i = 0; i < yCanWin.length; i++) {
    sortArray.push(yCanWin[i][0]);
  }
  sortArray.sort(function (x, y) {
    return x - y;
  });
  // 数组排序后,前数和后数加一相比(注意数值类型的转换)
  for (var j = 0; j < sortArray.length; j++) {
    if (sortArray[j + 1]) {
      if (parseInt(sortArray[j]) + 1 == parseInt(sortArray[j + 1])) {
        count++; // 每有一个连续则加一,一次不连续就清零
        if (count == 4 && c == 0) {
          bv = true;
          notOver = false;// 游戏结束
          return;
        } else if (count == 4 && c == 1) {
          wv = true;
          notOver = false;
          return;
        }
      } else {
        count = 0;
      }
    }
  }
  count = 0;
}
// 棋的横赢条件(棋的反斜赢条件)
function xWin(xCanWin, c) {
  var sortArray = [];
  for (var i = 0; i < xCanWin.length; i++) {
    sortArray.push(xCanWin[i][1]);
  }
  sortArray.sort(function (x, y) {
    return x - y;
  });
  for (var j = 0; j < sortArray.length; j++) {
    if (sortArray[j + 1]) {
      if (parseInt(sortArray[j]) + 1 == parseInt(sortArray[j + 1])) {
        count++;
        if (count == 4 && c == 0) {
          bv = true;
          notOver = false;
          return;
        } else if (count == 4 && c == 1) {
          wv = true;
          notOver = false;
          return;
        }
      } else {
        count = 0;
      }
    }
  }
  count = 0;
}

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