早些时候发帖:How do I make my tictactoe program scalable
我试图使Tic Tac Toe程序(人类与计算机)可扩展(可以更改电路板尺寸)。我早些时候遇到了重大问题,但修复了大部分问题。
游戏的规则是基本的Tic Tac Toe,但是一个不同的规则是,无论棋盘有多大(当>= 5
时),玩家或计算机只需连续赢得五个分数。
现在我的计划唯一的游戏破解问题是确定谁赢了比赛。只有游戏才能结束“平局”。在这一刻。 (我还没有实现" >= 5
"还有)。
具体的问题解释是我需要确定胜利者和结束屏幕,例如" computer wins
"和/或" player wins
"。
package tictactoe;
import java.util.Scanner;
import java.util.Random;
public class TicTacToe {
public static int size;
public static char[][] board;
public static int score = 0;
public static Scanner scan = new Scanner(System.in);
/**
* Creates base for the game.
*
* @param args the command line parameters. Not used.
*/
public static void main(String[] args) {
System.out.println("Select board size");
System.out.print("[int]: ");
size = Integer.parseInt(scan.nextLine());
board = new char[size][size];
setupBoard();
int i = 1;
while (true) {
if (i % 2 == 1) {
displayBoard();
getMove();
} else {
computerTurn();
}
// isWon()
if (isDraw()) {
System.err.println("Draw!");
break;
}
i++;
}
}
/**
* Checks for draws.
*
* @return if this game is a draw
*/
public static boolean isDraw() {
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
if (board[i][j] == ' ') {
return false;
}
}
}
return true;
}
/**
* Displays the board.
*
*
*/
public static void displayBoard() {
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
System.out.printf("[%s]", board[i][j]);
}
System.out.println();
}
}
/**
* Displays the board.
*
*
*/
public static void setupBoard() {
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
board[i][j] = ' ';
}
}
}
/*
* Checks if the move is allowed.
*
*
*/
public static void getMove() {
Scanner sc = new Scanner(System.in);
while (true) {
System.out.printf("ROW: [0-%d]: ", size - 1);
int x = Integer.parseInt(sc.nextLine());
System.out.printf("COL: [0-%d]: ", size - 1);
int y = Integer.parseInt(sc.nextLine());
if (isValidPlay(x, y)) {
board[x][y] = 'X';
break;
}
}
}
/*
* Randomizes computer's turn - where it inputs the mark 'O'.
*
*
*/
public static void computerTurn() {
Random rgen = new Random(); // Random number generator
while (true) {
int x = (int) (Math.random() * size);
int y = (int) (Math.random() * size);
if (isValidPlay(x, y)) {
board[x][y] = 'O';
break;
}
}
}
/**
* Checks if the move is possible.
*
* @param inX
* @param inY
* @return
*/
public static boolean isValidPlay(int inX, int inY) {
// Play is out of bounds and thus not valid.
if ((inX >= size) || (inY >= size)) {
return false;
}
// Checks if a play have already been made at the location,
// and the location is thus invalid.
return (board[inX][inY] == ' ');
}
}
答案 0 :(得分:2)
你已经有了循环播放,因此,在每次迭代中,你都会以同样的方式检查游戏isDraw()
,同时检查一些玩家是否赢了:
while (true) {
if (i % 2 == 1) {
displayBoard();
getMove();
} else {
computerTurn();
}
// isWon()
if (isDraw()) {
System.err.println("Draw!");
break;
} else if (playerHasWon()){
System.err.println("YOU WIN!");
break;
} else if (computerHasWon()) {
System.err.println("Computer WINS!\nYOU LOOSE!!");
break;
}
i++;
}
创建所需方法后:
public static boolean playerHasWon() {
boolean hasWon = false;
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
// check if 5 in a line
}
}
return hasWon ;
}
public static boolean computerHasWon() {
boolean hasWon = false;
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
// check if 5 in a line
}
}
return hasWon ;
}
接下来的问题当然是我如何创建这种方法?如果你有这个问题,不知道怎么办,但要快速检查here here和{{3你会发现一些想法。
ADD ON:
为了澄清,我会创建一个函数返回int
而不是booleans
,以检查游戏是否使用了一些常量:
private final int DRAW = 0;
private final int COMPUTER = 1;
private final int PLAYER = 2;
private int isGameFinished() {
if (isDraw()) return DRAW;
else if (computerHasWon()) return COMPUTER;
else if (playerHasWon()) return PLAYER;
}
然后只需使用开关案例here
进行检查loop: while (true) {
// other stufff
switch (isGameFinished()) {
case PLAYER:
System.err.println("YOU WIN!");
break loop;
case COMPUTER:
System.err.println("Computer WINS!\nYOU LOOSE!!");
break loop;
case DRW:
System.err.println("IT'S A DRAW");
break loop;
}