1.棋盘类
/** * 棋盘 * */public class Chessboard { // 定义一个二维数组来充当棋盘 PRivate String[][] board; // 定义棋盘的大小 public final int BOARD_SIZE = 15; /** * 初始化棋盘 * * @return void */ public void initBoard() { board = new String[BOARD_SIZE][BOARD_SIZE]; // 把每个元素赋值为“十”，用于控制台输出棋盘 for (int i = 0; i < BOARD_SIZE; i++) { for (int j = 0; j < BOARD_SIZE; j++) { board[i][j] = "十"; } } } /** * 在控制台输出棋盘 */ public void printBoard() { // 打印每个数组元素 for (int i = 0; i < BOARD_SIZE; i++) { for (int j = 0; j < BOARD_SIZE; j++) { System.out.print(board[i][j]);// 打印后不换行 } System.out.print("/n");// 每打印完一行数组元素就换行一次 } } /** * 给棋盘位置赋值 * * @param posX * X坐标 * @param posY * Y坐标 * @param chessman * 棋子 */ public void setBoard(int posX, int posY, String chessman) { board[posX][posY] = chessman; } /** * 返回棋盘 * * @return 返回棋盘 */ public String[][] getBoard() { return board; } public int getBoardSize() { return BOARD_SIZE; }}2.棋手类----你和电脑public class ChessMan { static final String blackChessman="●"; static final String whiteChessman="○"; /** * @return String 黑棋 */ public static String getBlackChessman() { return blackChessman; } /** * @return String 白棋 */ public static String getWhiteChessman() { return whiteChessman; }}3.五子棋的具体实现类import java.io.BufferedReader;import java.io.InputStreamReader;import java.util.Random;import java.util.Scanner;/** * 五子棋游戏类 * */public class GobangGame { private final int WIN_COUNT = 5;// 定义达到赢条件的棋子数目 private int posX = 0;// 定义用户输入的X坐标 private int posY = 0;// 定义用户输入的X坐标 private Chessboard chessboard;// 定义棋盘 /** * 构造器，初始化棋盘和棋子属性 * * @param chessboard * 棋盘类 */ public GobangGame(Chessboard chessboard) { this.chessboard = chessboard; } /** * 检查输入是否合法。 * * @param inputStr * 由控制台输入的字符串。 * @return 字符串合法返回true,反则返回false。 */ public boolean isValid(String inputStr) { // 将用户输入的字符串以逗号(,)作为分隔，分隔成两个字符串 String[] posStrArr = inputStr.split(","); try { posX = Integer.parseInt(posStrArr[0]) - 1;//用户棋子的X坐标 posY = Integer.parseInt(posStrArr[1]) - 1;//用户棋子的Y坐标 } catch (NumberFormatException e) { chessboard.printBoard(); System.out.println("请以(数字,数字)的格式输入："); return false; } // 检查输入数值是否在范围之内 if (posX < 0 || posX >= chessboard.getBoardSize() || posY < 0 || posY >= chessboard.getBoardSize() ) { chessboard.printBoard(); System.out.println("X与Y坐标只能大于等于1,与小于等于" + chessboard.getBoardSize() + ",请重新输入："); return false; } // 检查输入的位置是否已经有棋子 String[][] board = chessboard.getBoard(); if (board[posX][posY] != "十") { chessboard.printBoard(); System.out.println("此位置已经有棋子，请重新输入："); return false; } return true; } /** * 开始下棋 */ public void start() throws Exception { chessboard.initBoard(); chessboard.printBoard(); Scanner scan = new Scanner(System.in); boolean isOver = false;// true为游戏结束 while(!isOver){ System.out.print("请输入棋子的位置："); String inputStr = scan.nextLine(); //isOver = false; if (!isValid(inputStr)) { continue;// 如果不合法，要求重新输入，再继续 } String chessman =ChessMan.getBlackChessman(); chessboard.setBoard(posX, posY,chessman); // 判断用户是否赢了 if (isWon(posX, posY,chessman)) { isOver = true; } else { // 计算机随机选择位置坐标 int[] computerPosArr = computerDo(); chessman = ChessMan.getWhiteChessman(); chessboard.setBoard(computerPosArr[0], computerPosArr[1],chessman); // 判断计算机是否赢了 if (isWon(computerPosArr[0], computerPosArr[1], chessman)) { isOver = true; } } // 如果产生胜者，询问用户是否继续游戏 if (isOver) { // 如果继续，重新初始化棋盘，继续游戏 if (isReplay(chessman)) { isOver = false; chessboard.initBoard(); chessboard.printBoard(); continue; } // 如果不继续，退出程序 break; } chessboard.printBoard(); } } /** * 是否重新开始下棋。 * * @param chessman * "●"为用户，"○"为计算机。 * @return 开始返回true，反则返回false。 */ public boolean isReplay(String chessman) throws Exception { chessboard.printBoard(); String playerWin = "恭喜您，您赢了，"; String computerWin = "很遗憾，您输了，"; String message = chessman.equals(ChessMan.getBlackChessman()) ? playerWin:computerWin ; System.out.println(message + "再下一局？(y/n)"); Scanner scan = new Scanner(System.in); if (scan.next().equals("y")) { // 开始新一局 return true; } return false; } /** * 计算机随机下棋 */ public int[] computerDo() { Random random = new Random(); int posX = random.nextInt(chessboard.getBoardSize()-1); int posY = random.nextInt(chessboard.getBoardSize()-1); String[][] board = chessboard.getBoard(); while (board[posX][posY] != "十" && board[posX][posY]!=ChessMan.getBlackChessman()&& board[posX][posY]!=ChessMan.getWhiteChessman()) { posX = random.nextInt(chessboard.getBoardSize()-1); posY = random.nextInt(chessboard.getBoardSize()-1); } int[] result = { posX, posY }; return result; } /** * 判断输赢 * * @param posX * 棋子的X坐标。 * @param posY * 棋子的Y坐标 * @param ico * 棋子类型 * @return 如果有五颗相邻棋子连成一条直接，返回真，否则相反。 */ public boolean isWon(int posX, int posY, String ico) { int startX = 0;// 直线起点的X最小坐标 int startY = 0;// 直线起点Y最小坐标 int endX = chessboard.getBoardSize()-1;// 直线结束X最大坐标 int endY = chessboard.getBoardSize()-1;// 直线结束Y最大坐标 int sameCount = 0;// 同条直线上相邻棋子累积数 int temp = 0; // 计算起点的最小X坐标与Y坐标 temp = posX - WIN_COUNT + 1; startX = (temp<0)? 0:temp; temp = posY - WIN_COUNT + 1; startY = (temp<0)?0:temp; // 计算终点的最大X坐标与Y坐标 temp = posX + WIN_COUNT - 1; endX = temp > (chessboard.getBoardSize()-1)?(chessboard.getBoardSize()-1):temp; temp = posY + WIN_COUNT - 1; endY = temp >(chessboard.getBoardSize()-1)?(chessboard.getBoardSize()-1):temp; // 计算一行中相同棋子的数目 String[][] board = chessboard.getBoard(); for (int i = startY; i < endY; i++) { if (board[posX][i] == ico && board[posX][i + 1] == ico) { sameCount++; } else if (sameCount < WIN_COUNT - 1) { sameCount = 0; } } // 计算一行中相同棋子的数目 if (sameCount == 0) { for (int i = startX; i < endX; i++) { if (board[i][posY] == ico && board[i + 1][posY] == ico) { sameCount++; } else if (sameCount < WIN_COUNT - 1) { sameCount = 0; } } } // 从左上到右下计算相同棋子的数目 if (sameCount == 0) { int j = startY; for (int i = startX; i < endX; i++) { if (j < endY) { if (board[i][j] == ico && board[i + 1][j + 1] == ico) { sameCount++; } else if (sameCount < WIN_COUNT - 1) { sameCount = 0; } j++; } } } if (sameCount == 0) { // 从右上到左下计算相同棋子的数目 int j = startX; for (int i = endY; i > startY; i--) { if (j < endY) { if (board[i][j] == ico && board[i-1][j+1] == ico) { sameCount++; } else if (sameCount < WIN_COUNT - 1) { sameCount = 0; } j++; } } } return sameCount >= (WIN_COUNT-1)?true:false; }}4.控制类import java.util.Scanner;public class Main { public static void main(String[] args) throws Exception { GobangGame gb = new GobangGame(new Chessboard()); gb.start(); }}源代码
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