import java.util.Arrays;
import java.util.Scanner;
/**
- 简易五子棋
*/
public class Gobang {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
boolean finish = false; // 游戏是否结束
int turn = 1; // 当前下棋者标记,1则PLAYER1下棋，-1则PLAYER2下棋
int x = 0, y = 0; // 当前棋子的横纵坐标
final char PLAYER1 = '*';// 玩家1使用的字符
final char PLAYER2 = 'o';// 玩家2使用的字符
final char EMPTY = '-';// 空棋盘使用的字符
/* 棋盘初始化 */
char checkerboard[][] = new char[10][10];
for (int i = 0; i < checkerboard.length; i++) {
Arrays.fill(checkerboard[i], EMPTY);
}
game : while (!finish) {
/* 打印棋盘 */
System.out.println("---------------------");
System.out.println(" 0 1 2 3 4 5 6 7 8 9");
for (int i = 0; i < checkerboard.length; i++) {
System.out.print(i + " ");
for (int j = 0; j < checkerboard[i].length; j++) {
System.out.print(checkerboard[i][j] + " ");
}
System.out.println();
}
System.out.println("---------------------");
/* 判断当前下棋者 */
if (turn == 1) {
System.out.println("请" + PLAYER1 + "输入棋子坐标：");
} else {
System.out.println("请" + PLAYER2 + "输入棋子坐标：");
}
/* 输入棋子坐标 */
String str = sc.nextLine();
x = Integer.parseInt(String.valueOf(str.charAt(0)));
y = Integer.parseInt(String.valueOf(str.charAt(1)));
/* 判断坐标是否在棋盘之内 */
if (x < 0 || x > 8 || y < 0 || y > 8) {
System.out.println("***您输入的坐标有误请重新输入！***");
continue;
}
/* 判断坐标上是否有棋子 */
if (checkerboard[x][y] == EMPTY) {
if (turn == 1) {
checkerboard[x][y] = PLAYER1;
} else {
checkerboard[x][y] = PLAYER2;
}
} else {
System.out.println("***您输入位置已经有其他棋子，请重新选择！***");
continue;
}
/* 五子棋输赢算法那*/
for (int i = 0; i < checkerboard.length; i++) {
for (int j = 0; j < checkerboard[i].length; j++) {
char flagch = checkerboard[i][j];
if (flagch == EMPTY) {// 如果此处没有棋子
continue;// 不进行输赢判断
}
/* 判断棋子左侧 */
if (y - 4 >= 0) {
if (checkerboard[i][j - 1] == flagch
&& checkerboard[i][j - 2] == flagch
&& checkerboard[i][j - 3] == flagch
&& checkerboard[i][j - 4] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子右侧 */
if (y + 4 <= 9) {
if (checkerboard[i][j + 1] == flagch
&& checkerboard[i][j + 2] == flagch
&& checkerboard[i][j + 3] == flagch
&& checkerboard[i][j + 4] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子上方 */
if (x - 4 >= 0) {
if (checkerboard[i - 1][j] == flagch
&& checkerboard[i - 2][j] == flagch
&& checkerboard[i - 3][j] == flagch
&& checkerboard[i - 4][j] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子下方 */
if (x + 4 <= 9) {
if (checkerboard[i + 1][j] == flagch
&& checkerboard[i + 2][j] == flagch
&& checkerboard[i + 3][j] == flagch
&& checkerboard[i + 4][j] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子西北 */
if (x - 4 >= 0 && y - 4 >= 0) {
if (checkerboard[i - 1][j - 1] == flagch
&& checkerboard[i - 2][j - 2] == flagch
&& checkerboard[i - 3][j - 3] == flagch
&& checkerboard[i - 4][j - 4] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子西南 */
if (x + 4 <= 9 && y - 4 >= 0) {
if (checkerboard[i + 1][j - 1] == flagch
&& checkerboard[i + 2][j - 2] == flagch
&& checkerboard[i + 3][j - 3] == flagch
&& checkerboard[i + 4][j - 4] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子东北 */
if (x - 4 >= 0 && y + 4 <= 9) {
if (checkerboard[i - 1][j + 1] == flagch
&& checkerboard[i - 2][j + 2] == flagch
&& checkerboard[i - 3][j + 3] == flagch
&& checkerboard[i - 4][j + 4] == flagch) {
finish = true;
break game;
}
}
/* 判断棋子东南 */
if (x + 4 <= 9 && y + 4 <= 9) {
if (checkerboard[i + 1][j + 1] == flagch
&& checkerboard[i + 2][j + 2] == flagch
&& checkerboard[i + 3][j + 3] == flagch
&& checkerboard[i + 4][j + 4] == flagch) {
finish = true;
break game;
}
}
}
}
turn *= -1; // 更换下棋者标记
}
/* 输出最后胜利的棋盘 */
System.out.println("---------------------");
System.out.println(" 0 1 2 3 4 5 6 7 8 9");
for (int i = 0; i < checkerboard.length; i++) {
System.out.print(i + " ");
for (int j = 0; j < checkerboard[i].length; j++) {
System.out.print(checkerboard[i][j] + " ");
}
System.out.println();
}
System.out.println("---------------------");
/* 输出赢家 */
if (turn == 1) {
System.out.println("*棋胜利！");
} else {
System.out.println("o棋胜利！");
}
sc.close();
}
}
