我必须做这个tic tac toe程序，可以从3x3缩放到10x10。 我在教程的帮助下掌握了游戏的基础知识，但没有成功地找到如何使其可扩展。
程序是玩家与计算机，计算机试图阻止玩家赢得游戏。游戏规则是基本的tictactoe / fiveinarow / sixinarowow等等。
public class TicTacToe {
static int A1, A2, A3, B1, B2, B3, C1, C2, C3; // Board spots.
static Scanner sc = new Scanner(System.in);
/**
*
*
*
*/
public static void main(String[] args) {
String prompt = "Make you move with the letters A-C and numbers 1-3"
+ "\nYou are \"X\" and the computer is \"O\"\n";
String yourTurn; // player's playturn
String computerTurn; // computer's playturn
boolean gameIsWon = false; // Boolean to game win/lose
// There are a maximum of nine plays, so a for loop keeps track of
// the number of plays. The game is over after the ninth play.
// Each time through the loop, both the human and the computer play.
// So i is incremented in the body of the loop after the computer plays.
for (int i = 1; i <= 9; i++) {
// Player
yourTurn = getMove(prompt);
updateBoard(yourTurn, 1);
displayBoard(); // shows the board
if (isGameWon()) {
System.out.println("YOU WIN!");
gameIsWon = true;
break;
}
// Computer
if (i < 9) {
computerTurn = computerTurn();
System.out.println("Computer's turn: " + computerTurn);
updateBoard(computerTurn, 2);
displayBoard();
if (isGameWon()) {
System.out.println("YOU LOSE!");
gameIsWon = true;
break;
}
prompt = "Your turn: ";
i++;
}
}
if (!gameIsWon) {
System.out.println("NO WINNER! DRAW!");
}
}
/**
*
*
*
* @param prompt
* @return
*/
public static String getMove(String prompt) {
String play;
System.out.print(prompt);
do {
play = sc.nextLine();
if (!isValidPlay(play)) {
System.out.println("Error! Use only combination of A-C and 1-3!"
+ " For Example: A1"
+ "\nIf you used the right combination "
+ "check if you or the computer do not already have "
+ "\"X\" or \"O\" there.");
}
} while (!isValidPlay(play));
return play;
}
/**
* Checks if the play is possible.
*
*
* @param play
* @return
*/
public static boolean isValidPlay(String play) {
if (play.equalsIgnoreCase("A1") & A1 == 0) {
return true;
}
if (play.equalsIgnoreCase("A2") & A2 == 0) {
return true;
}
if (play.equalsIgnoreCase("A3") & A3 == 0) {
return true;
}
if (play.equalsIgnoreCase("B1") & B1 == 0) {
return true;
}
if (play.equalsIgnoreCase("B2") & B2 == 0) {
return true;
}
if (play.equalsIgnoreCase("B3") & B3 == 0) {
return true;
}
if (play.equalsIgnoreCase("C1") & C1 == 0) {
return true;
}
if (play.equalsIgnoreCase("C2") & C2 == 0) {
return true;
}
return play.equalsIgnoreCase("C3") & C3 == 0;
}
/**
*
*
*
* @param play
* @param player
*/
public static void updateBoard(String play, int player) {
if (play.equalsIgnoreCase("A1")) {
A1 = player;
}
if (play.equalsIgnoreCase("A2")) {
A2 = player;
}
if (play.equalsIgnoreCase("A3")) {
A3 = player;
}
if (play.equalsIgnoreCase("B1")) {
B1 = player;
}
if (play.equalsIgnoreCase("B2")) {
B2 = player;
}
if (play.equalsIgnoreCase("B3")) {
B3 = player;
}
if (play.equalsIgnoreCase("C1")) {
C1 = player;
}
if (play.equalsIgnoreCase("C2")) {
C2 = player;
}
if (play.equalsIgnoreCase("C3")) {
C3 = player;
}
}
/**
*
*
*
*/
public static void displayBoard() {
String line;
System.out.println();
line = " " + getXO(A1) + " | " + getXO(A2) + " | " + getXO(A3);
System.out.println(line);
System.out.println("-----------");
line = " " + getXO(B1) + " | " + getXO(B2) + " | " + getXO(B3);
System.out.println(line);
System.out.println("-----------");
line = " " + getXO(C1) + " | " + getXO(C2) + " | " + getXO(C3);
System.out.println(line);
System.out.println();
}
public static String getXO(int square) {
if (square == 1) {
return "X";
}
if (square == 2) {
return "O";
}
return " ";
}
/**
*
*
*
* @return
*/
public static String computerTurn() {
if (A1 == 0) {
return "A1";
}
if (A2 == 0) {
return "A2";
}
if (A3 == 0) {
return "A3";
}
if (B1 == 0) {
return "B1";
}
if (B2 == 0) {
return "B2";
}
if (B3 == 0) {
return "B3";
}
if (C1 == 0) {
return "C1";
}
if (C2 == 0) {
return "C2";
}
if (C3 == 0) {
return "C3";
}
return "";
}
/**
*
*
*
* @return
*/
public static boolean isGameWon() {
if (isRowWon(A1, A2, A3)) {
return true;
}
if (isRowWon(B1, B2, B3)) {
return true;
}
if (isRowWon(C1, C2, C3)) {
return true;
}
if (isRowWon(A1, B1, C1)) {
return true;
}
if (isRowWon(A2, B2, C2)) {
return true;
}
if (isRowWon(A3, B3, C3)) {
return true;
}
if (isRowWon(A1, B2, C3)) {
return true;
}
return isRowWon(A3, B2, C1);
}
/**
*
*
*
* @param a
* @param b
* @param c
* @return
*/
public static boolean isRowWon(int a, int b, int c) {
return ((a == b) & (a == c) & (a != 0));
}
}
答案 0 :(得分：3)
编写这个程序的方法真的很长，但有些提示：
static int A1, A2, A3, B1, B2, B3, C1, C2, C3; // Board spots.
实际上这是模拟
static int board[][] = new int[3][3];
通过
扩展程序替换变量声明static int size;
static int board[][];
询问用户的尺寸和
System.out.print("Insert size of the board : ");
size = c.nextInt();
board = new int[size][size];
在此之后，相应地更新您的displayBoard，isValidPlay和updateBoard。
注意如果您不想使用逗号，我希望像1,1而不是A1一样进行移动，在0开始登录你可以玩01
（你会看到现在的方法要短得多）。
public static boolean isValidPlay(String play) { // play = 1,1 or 3,1
int x = Integer.valueOf(play.split(",")[0]);
int y = Integer.valueOf(play.split(",")[0]);
// check if move is inside the board
if (x > size || y > size) return false;
// check if given position is empty and return accordingly
if (board[x][y] == 0) return true;
else return false;
}