java实现四子棋游戏

import java.util.Scanner;
/**
 * 
 * 
 * 玩法:1.跟五子棋玩法差不多,只是少一颗子,下棋只能选择每列下在每列棋子上面一格。
 * 2.棋子分为黄、红,执黄先行。
 * 3.胜利条件跟五子棋一样，就是少一颗子。
 */
class Desk {
 //棋桌类
 private char[][] date = new char[6][7];
 private Scanner scanner = new Scanner(System.in) ;
 private int hand = 1 ;
 
 //画出整个棋盘以及上面的棋子
 public void draw() {
 for (int i = 0; i < this.date.length; i++) {
 System.out.print("|");
 for (int j = 0; j < this.date[i].length; j++) {
 System.out.print(this.date[i][j] + "|");
 }
 System.out.println();
 }
 if (this.hand % 2 == 1) {
 System.out.print("现在是第" + this.hand + "手,轮到黄棋: ");
 playchess('Y');
 }
 else {
 System.out.print("现在是第" + this.hand + "手,轮到红棋: ") ;
 playchess('R');
 }
 }
 
 //控制落子
 public void playchess(char color) {
 this.hand ++;
 int place = scanner.nextInt() ;
 int i ;
 for (i = 5; i >= 0; i--) { //
 if (date[i][place] == '\u0000') {
 date[i][place] = color;
 break;
 }
 }
 if (i < 0)System.exit(1);
 else win(i, place, color) ;
 }
 
 //判断游戏是否有人胜利或平局(依据是根据落子位置的两个方向是否连成四子)
 public void win(int x, int place,char color) {
 int number = 1;
 //第一个方向(右斜线方向)
 for (int i = x - 1, j = place - 1; (i >= 0) && (j >= 0); i--, j--) {
 if (date[i][j] == color) {
 number++;
 }
 else break;
 }
 for (int i = x + 1, j = place + 1; (i <= 5) && (j <= 6); i++, j++) {
 if (date[i][j] == color) {
 number ++ ;
 }
 else break;
 }
 if (number == 4)end(color, "win");
 //第二个方向(左斜线方向)
 number = 1;
 for (int i = x - 1, j = place + 1; (i >= 0) && (j <= 6); i--, j++) {
 if (date[i][j] == color) {
 number++;
 }
 else break;
 }
 for (int i = x + 1, j = place - 1; (i <= 5) && (j >= 0); i++, j--) {
 if (date[i][j] == color) {
 number ++ ;
 }
 else break;
 }
 if (number == 4)end(color, "win");
 //第三个方向(水平)
 number = 1;
 for (int i = x, j = place - 1; j >= 0; j--) {
 if (date[i][j] == color) {
 number ++ ;
 }
 else break ;
 }
 for (int i = x, j = place + 1; j <= 6; j++) {
 if (date[i][j] == color) {
 number ++ ;
 }
 else break;
 }
 if (number == 4)end(color, "win");
 //第四个方向(竖直)
 number = 1;
 for (int i = x + 1, j = place; i <= 5; i++) {
 if (date[i][j] == color) {
 number ++ ;
 }
 else break;
 }
 if (number == 4)end(color, "win") ;
 //判断平局
 for (int i = 0; i < date.length; i++) {
 for (int j = 0; j < date[i].length; j++) {
 if (date[i][j] != 'Y' || date[i][j] != 'R')draw() ;
 }
 }
 end(color, "s") ;
 }
 
 //判断游戏是否结束
 public void end(char color, String str) {
 if (str.equals("win")) {
 System.out.print(color + "棋获得胜利!!!");
 System.exit(0);
 }
 else {
 System.out.print("两棋子平局.") ;
 System.exit(0);
 }
 }
}

public class ChessOffour {
 public static void main(String[] args) {
 Desk desk = new Desk() ;
 desk.draw() ;
 }
}