js实现简单五子棋游戏源码

实现代码1:

<!-- //html和css -->
<!DOCTYPE html>
<html lang="en">
	<!-- Head -->
	<head>
		<meta charset="UTF-8">
		<title>五子棋</title>
		<!-- css -->
		<style type="text/css">
			#container {
				width: 531px;
				height: 645px;
				margin: 0 auto;
				border: 1px solid blue;
				background: urlqipan.jpg) no-repeat;
				padding-top: 0px;
				padding-left: 5px;
			}

			td {
				width: 40px;
				height: 33px;
			}

			table {
				border-collapse: collapse;
				width: 525px;
				height: 465px;
			}
		</style>
		<!-- css ends -->
		<!-- script -->
		<script src="wuzi.js"></script>
		<!-- script ends -->
	</head>
	<!-- Head Ends -->
	<!-- Body -->
	<body>
		<!-- Container -->
		<div id="container">
			<!-- table model -->
			<table>
				<tr>
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			</table>
			<!-- 控件模块 -->
			<br>
			<div>
				<p>&nbsp;当前棋手:
					<img id="qizi" src="">
					<input type="button" value="黑棋先行" onclick="status1)">
					<input type="button" value="白棋先行" onclick="status2)">
					<input type="button" value="再来一局" onclick="window.location.href=window.location">
					<input type="button" value="退出游戏" onclick="closeFunction)">
				</p>
			</div>
		</div>
		<!-- Container Ends -->
	</body>
	<!-- Body Ends -->
</html>

<script type="text/javascript">
	//js部分代码
	/*状态事件*/

	function status1) {
		document.getElementById'qizi').src = "black.png";
	}

	function status2) {
		document.getElementById'qizi').src = "white.png";
	}

	/* 控件事件 */
	function closeFunction) {
		if confirm"是否退出游戏?")) {
			window.close);
		} else {
			history.back);
		}
	}

	/* 判断输赢 */
	var cnt = function) {
		var curr = 'black';
		return function) {
			var tmp = curr;
			if curr == 'black') {
				curr = 'white';
			} else {
				curr = 'black';
			}
			return tmp;
		}
	}));

	var tds = document.getElementsByTagName'td');
	var iswin = false; // 有没有分出胜负

	// 负责下棋,即改变单元格的背景
	var xia = function) {
		// 判断是否已分出胜负
		var color = cnt);
		if iswin) {
			alert'游戏结束!');
			return;
		}
		if this.style.background.indexOf'.png') >= 0) {
			alert'不能重复放置棋子!');
			return;
		}
		this.style.background = 'url' + color + '.png)';
		judge.callthis, color); // 下完棋后判断胜负
	}

	// 判断胜负的函数
	var judge = functioncolor) {
		// 找当前这颗棋的坐标
		// td在tr中索引,即是横坐标
		// tr是table的索引,即是纵坐标
		var curr = {
			x: this.cellIndex,
			y: this.parentElement.rowIndex,
			color: color
		};
		var line = ['', '', '', '']; //分别放置横,竖,左右下斜上棋
		// 循环225单元格
		for var i = 0, tmp = {}; i < 225; i++) {
			// 取当前循环到的这颗棋的坐标
			tmp = {
				x: tds[i].cellIndex,
				y: tds[i].parentElement.rowIndex,
				color: '0'
			};

			// 取当前循环到的这颗棋的颜色,分别b,w 0(空)来表示
			if tds[i].style.background.indexOf'black') >= 0) {
				tmp.color = 'b';
			} else if tds[i].style.background.indexOf'white') >= 0) {
				tmp.color = 'w';
			}

			if curr.y == tmp.y) {
				// 在一个横线上
				line[0] += tmp.color;
			}
			if curr.x == tmp.x) {
				// 在一个竖线上
				line[1] += tmp.color;
			}
			if curr.x + curr.y) == tmp.x + tmp.y)) {
				//在左斜线上
				line[2] += tmp.color;
			}
			if curr.x - tmp.x) == curr.y - tmp.y)) {
				//在右斜线上
				line[3] += tmp.color;
			}
		}
		// 判断4条线上,有没有连续的4个w,或4个b
		color = color == 'black' ? 'bbbbb' : 'wwwww'; //赢家的颜色

		for var i = 0; i < 4; i++) {
			if line[i].indexOfcolor) >= 0) {
				alertcolor + '胜了!b表示黑方胜,w表示白方胜)');
				iswin = true; // 标志已经分出胜负
				break;
			}
		}
	}
	window.onload = function) {
		document.getElementsByTagName'table')[0].onclick = functionev) {
			// 1. 下棋
			// 2. 判断胜负
			xia.callev.srcElement);
		};
	}
</script>

 

效果演示如下图:

实现代码2:

<!DOCTYPE html>
<html>
	<head lang="en">
		<meta charset="UTF-8">
		<title></title>
		<style>
			* {
padding: 0;
margin: 0;
}
canvas {
margin: 10px;
border: 2px solid #000;
}
#box {
display: inline-block;
position: absolute;
margin-top: 200px;
margin-left: 100px;
}
span {
font: 24px "微软雅黑";
display: inline-block;
height: 50px;
}
input {
margin-top: 30px;
display: block;
width: 100px;
height: 50px;
font: 16px "微软雅黑";
color: #fff;
background-color: #0099cc;
}
</style>
	</head>
	<body>
		<canvas width="640" height="640" id="cas">
			您的浏览器不支持canvas,请升级到最新的浏览器
		</canvas>
		<div id="box">
			<span id="txt"></span>
			<input type="button" id="btn" value="重新开始" />
		</div>

		<script>
			var flag = true; //true代表白棋下的棋子,false代表黑棋下的棋子
			var isWin = false; //判断是否结束,true结束,false没有结束
			var step = 40; //设置每个格子的宽高都是40

			var txt = document.getElementById"txt");
			var btn = document.getElementById"btn");
			var cas = document.getElementById"cas"); // 获取画布对象
			var ctx = cas.getContext"2d"); //画布上下文

			// 创建图片对象
			var img_b = new Image);
			img_b.src = "imgs/b.png"; //设置黑棋图片路径
			var img_w = new Image);
			img_w.src = "imgs/w.png"; //设置白棋图片路径

			// 用二维数组来保存棋盘,0代表没有走过,1为白棋走过,2为黑棋走过
			var arr = new Array15); //声明一个一维数组
			for var i = 0; i < 15; i++) {
				arr[i] = new Array15); //每个值再声明一个一维数组,这样就组成了一个二维数组
				for var j = 0; j < 15; j++) {
					arr[i][j] = 0;
				}
			}

			//绘制棋盘
			function drawLine) {
				for var i = 0; i < cas.width / step; i++) {
					// 画竖线
					ctx.moveToi + 1) * step, 0);
					ctx.lineToi + 1) * step, cas.height);
					// 画横线
					ctx.moveTo0, i + 1) * step);
					ctx.lineTocas.width, i + 1) * step);
					ctx.stroke);
				}
			}
			//获取鼠标点击的位置
			cas.onclick = functione) {
				// 先判断游戏是否结束
				if isWin) {
					alert"游戏已经结束,请刷新重新开始!");
					return 0;
				}
				//判断棋子显示的地方,四条边上不显示棋子,
				//鼠标点击的位置减去边框距离页面的上和左的距离(10),减去一个格子宽高的一半(20)
				var x = e.clientX - 10 - 20) / 40;
				var y = e.clientY - 10 - 20) / 40;

				//进行取整来确定棋子最终显示的区域
				x = parseIntx);
				y = parseInty);
				//如果超出棋盘或者在棋盘边界直接返回,边界上不能画棋子
				if x < 0 || x >= 15 || y < 0 || y >= 15) {
					return;
				}
				//进行判断该位置是否已经显示过棋子
				if arr[x][y] != 0) {
					alert"你不能在这个位置下棋");
					return;
				}
				// 判断是显示黑子还是白子
				if flag) { //白子
					flag = false; //将标志置为false,表示下次为黑子
					drawChess1, x, y); //调用函数来画棋子

				} else { //黑子
					flag = true; //将标志置为true,表示下次为白子
					drawChess2, x, y); //调用函数来画棋子

				}
			}
			//画棋子
			function drawChessnum, x, y) {
				//根据x和y确定图片显示位置,让图片显示在十字线中间,因为一个格子为40,图片大小为30,所以40-30/2等于25,所以需要加上25
				var x0 = x * step + 25;
				var y0 = y * step + 25;
				if num == 1) {
					//绘制白棋
					ctx.drawImageimg_w, x0, y0);
					arr[x][y] = 1; //白子
				} else if num == 2) {
					// 绘制黑棋
					ctx.drawImageimg_b, x0, y0);
					arr[x][y] = 2; //黑子
				}
				//调用函数判断输赢
				judgenum, x, y);
			}
			//判断输赢
			function judgenum, x, y) {
				var n1 = 0, //左右方向
					n2 = 0, //上下方向
					n3 = 0, //左上到右下方向
					n4 = 0; // 右上到左下方向
				//***************左右方向*************
				//先从点击的位置向左寻找,相同颜色的棋子n1自加,直到不是相同颜色的棋子,则跳出循环
				for var i = x; i >= 0; i--) {
					if arr[i][y] != num) {
						break;
					}
					n1++;
				}
				//然后从点击的位置向右下一个位置寻找,相同颜色的棋子n1自加,直到不是相同颜色的棋子,则跳出循环
				for var i = x + 1; i < 15; i++) {
					if arr[i][y] != num) {
						break;
					}
					n1++;
				}
				//****************上下方向************
				for var i = y; i >= 0; i--) {
					if arr[x][i] != num) {
						break;
					}
					n2++;
				}
				for var i = y + 1; i < 15; i++) {
					if arr[x][i] != num) {
						break;
					}
					n2++;
				}
				//****************左上到右下斜方向***********
				for var i = x, j = y; i >= 0, j >= 0; i--, j--) {
					if i < 0 || j < 0 || arr[i][j] != num) {
						break;
					}
					n3++;
				}
				for var i = x + 1, j = y + 1; i < 15, j < 15; i++, j++) {
					if i >= 15 || j >= 15 || arr[i][j] != num) {
						break;
					}
					n3++;
				}
				//****************右上到左下斜方向*************
				for var i = x, j = y; i >= 0, j < 15; i--, j++) {
					if i < 0 || j >= 15 || arr[i][j] != num) {
						break;
					}
					n4++;
				}
				for var i = x + 1, j = y - 1; i < 15, j >= 0; i++, j--) {
					if i >= 15 || j < 0 || arr[i][j] != num) {
						break;
					}
					n4++;
				}
				//用一个定时器来延时,否则会先弹出对话框,然后才显示棋子
				var str;
				if n1 >= 5 || n2 >= 5 || n3 >= 5 || n4 >= 5) {
					if num == 1) { //白棋
						str = "白棋赢了,游戏结束!"
					} else if num == 2) { //黑棋
						str = "黑棋赢了,游戏结束!"
					}
					txt.innerHTML = str;
					isWin = true;
				}
			}
			//重新开始
			btn.onclick = function) {
				flag = true;
				isWin = false;

				for var i = 0; i < 15; i++) {
					for var j = 0; j < 15; j++) {
						arr[i][j] = 0;
					}
				}
				ctx.clearRect0, 0, 640, 640);
				txt.innerHTML = "";
				drawLine);
			}
			drawLine);
		</script>
	</body>
</html>

 

效果演示如下图:

参考资料:
https://www.cnblogs.com/xbyl/p/5733830.html
https://www.jb51.net/article/128503.htm

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