二维数组做得五子棋(基于控制台)

 
package com.asia.test;

import java.util.Scanner;

public class Test2 {
	public static void main(String[] args) {
		Scanner console = new Scanner(System.in);
		char[] name = { '空', '黑', '白' };
		int count = 0;// 计数器,用来计算该谁下棋了
		char[][] qi = new char[16][16];// 把棋盘情况放进二维数组中
		while (true) {
			int row = 0;// 初始化从控制台接收到的row和col 的index为0
			int col = 0;
			if (count == 0) {
				print(qi, name[count], row, col);
				count++;
			}
			if (count == 1) {
				System.out.println("请黑(@)下棋(i j):");
				row = console.nextInt(16)%16;// 从控制台接收到的row的index
				col = console.nextInt(16)%16;// 从控制台接收到的col的index

				String condition = print(qi, name[count], row, col);
				if (condition.length() == 1) {// 下棋正确
					count++;
				}
				if (condition.length() == 2) {// 下棋出现错误,要下的位置已经下过棋子
					System.out.println("此位置已经有棋子,黑棋重新再下");
				}
				if (condition.length() == 3) {// 黑棋子赢
					System.out.println("黑棋很给力,白棋是浮云,黑棋赢了");
					break;
				}
				if (condition.length() == 4) {
					System.out.println("白棋子赢");
					break;
				}
			}
			if (count == 2) {
				System.out.println("请白(*)下棋(i j):");
				row = console.nextInt(16);
				col = console.nextInt(16);

				String condition = print(qi, name[count], row, col);
				if (condition.length() == 1) {// 打印棋盘
					count--;
				}
				if (condition.length() == 2) {// 下棋出现错误,要下的位置已经下过棋子
					System.out.println("此位置已经有棋子,白棋重新再下");
				}
				if (condition.length() == 3) {
					System.out.println("黑棋子赢");
					break;
				}
				if (condition.length() == 4) {
					System.out.println("白棋很给力,黑棋是浮云,白棋赢了");
					break;
				}
			}

		}

	}

	/**
	 * @param qi是装棋盘情况
	 * @param name轮到谁下棋了
	 *            row 行号 col 列号 return true-下棋正确,false-下棋错误,重新下
	 */
	public static String print(char[][] qi, char name, int row, int col) {

		String b = "无";// 初始化下棋是正确的
		String str = "0123456789abcdef";

		// 打印下第一行
		System.out.print(" ");
		for (int i = 0; i < str.length(); i++) {
			System.out.print(str.charAt(i));
		}
		System.out.println();

		for (int i = 0; i < qi.length; i++) {
			System.out.print(str.charAt(i));
			for (int j = 0; j < qi[i].length; j++) {
				if (name == '空') { // 还没开始下棋时,棋盘默认显示是'.'
					qi[i][j] = '.';
				}
				if ((name == '黑') && (i == row) && (j == col)) {
					if (qi[i][j] != '.') {// 下的位置已经有棋子了,返回false
						b = "有棋";
					} else {
						qi[i][j] = '@';// 黑方下棋后的位置显示是'@'
						if (win(qi, '@', row, col)) {
							b = "黑棋子";
						}
					}
				}
				if ((name == '白') && (i == row) && (j == col)) {
					if (qi[i][j] != '.') {
						b = "有棋";
					} else {
						qi[i][j] = '*';// 黑方下棋后的位置显示是'*'
						if (win(qi, '*', row, col)) {
							b = "白棋子赢";
						}
					}
				}
				System.out.print(qi[i][j]);
			}
			System.out.println();
		}

		return b;
	}

	public static boolean win(char[][] qi, char ch, int row, int col) {
		boolean b = false;
		boolean ns = n2s(qi, ch, row, col);
		boolean we = w2e(qi, ch, row, col);
		boolean wnes = wn2es(qi, ch, row, col);
		boolean enws = en2ws(qi, ch, row, col);

		b = ns || we || wnes || enws;
		return b;

	}

	/* 从北到南方向 */
	public static boolean n2s(char[][] qi, char ch, int row, int col) {

		boolean win = false;
		int north = 0;// begin
		int south = 0;// end
		while (qi[row][col] == ch) {
			row--;
			if (row < 0) {
				break;
			}
		}
		row++;// row此时要++,不然等到下面的while(..)中的qi[row][col]永不会==ch

		north = row;
		while (qi[row][col] == ch) {
			row++;
			if (row > 15) {
				break;
			}
		}
		south = row;

		if ((south - north) >= 5) {
			win = true;
		}

		return win;
	}

	/* 从西到东方向 */
	public static boolean w2e(char[][] qi, char ch, int row, int col) {

		boolean win = false;
		int west = 0;// begin
		int east = 0;// end

		while (qi[row][col] == ch) {
			col--;
			if (col < 0) {
				break;
			}
		}
		col++;// col此时要++,不然等到下面的while(..)中的qi[row][col]永不会==ch

		west = col;
		while (qi[row][col] == ch) {
			col++;
			if (col > 15) {
				break;
			}
		}
		east = col;

		if ((east - west) >= 5) {
			win = true;
		}

		return win;
	}

	/* 从西北到东南方向 */
	public static boolean wn2es(char[][] qi, char ch, int row, int col) {

		boolean win = false;
		int wn = 0;// begin
		int es = 0;// end

		while (qi[row][col] == ch) {
			row--;
			col--;
			if (row < 0 || col < 0) {
				break;
			}
		}
		row++;// row和col此时要++,不然等到下面的while(..)中的qi[row][col]永不会==ch
		col++;

		wn = row;
		while (qi[row][col] == ch) {
			row++;
			col++;
			if (row > 15 || col > 15) {
				break;
			}
		}
		es = row;

		if ((es - wn) >= 5) {
			win = true;
		}

		return win;
	}

	/* 从东北到西南方向 */
	public static boolean en2ws(char[][] qi, char ch, int row, int col) {

		boolean win = false;
		int en = 0;// begin
		int ws = 0;// end

		while (qi[row][col] == ch) {
			row--;
			col--;
			if (row < 0 || col < 0) {
				break;
			}
		}
		row++;// row和col此时要++,不然等到下面的while(..)中的qi[row][col]永不会==ch
		col++;

		en = row;
		while (qi[row][col] == ch) {
			row++;
			col++;
			if (row > 15 || col > 15) {
				break;
			}
		}
		ws = row;

		if ((ws - en) >= 5) {
			win = true;
		}

		return win;
	}
}

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