import java.util.Scanner;
/**
 * 
 * 
 * 玩法:1.跟五子棋玩法差不多,只是少一顆子,下棋只能選擇每列下在每列棋子上面一格。
 * 2.棋子分為黃、紅,執(zhí)黃先行。
 * 3.勝利條件跟五子棋一樣，就是少一顆子。
 */
class Desk {
 //棋桌類(lèi)
 private char[][] date = new char[6][7];
 private Scanner scanner = new Scanner(System.in) ;
 private int hand = 1 ;
 
 //畫(huà)出整個(gè)棋盤(pán)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("現(xiàn)在是第" + this.hand + "手,輪到黃棋: ");
 playchess('Y');
 }
 else {
 System.out.print("現(xiàn)在是第" + this.hand + "手,輪到紅棋: ") ;
 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) ;
 }
 
 //判斷游戲是否有人勝利或平局(依據(jù)是根據(jù)落子位置的兩個(gè)方向是否連成四子)
 public void win(int x, int place,char color) {
 int number = 1;
 //第一個(gè)方向(右斜線方向)
 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");
 //第二個(gè)方向(左斜線方向)
 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");
 //第三個(gè)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");
 //第四個(gè)方向(豎直)
 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") ;
 //判斷平局
 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") ;
 }
 
 //判斷游戲是否結(jié)束
 public void end(char color, String str) {
 if (str.equals("win")) {
 System.out.print(color + "棋獲得勝利!!!");
 System.exit(0);
 }
 else {
 System.out.print("兩棋子平局.") ;
 System.exit(0);
 }
 }
}

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