[英]How do I print a tic-tac-toe board after the user enters in the rows and columns in c++
[英]How do I make a function to check for the winning move in tic-tac-toe if the user chooses the size of the game board?
我已将井字游戏程序从使用普通的 3x3 网格更改为用户选择的网格大小(3 到 9 之间)。 我正在使用全局常量“SIZE”来保存用户选择的值。 我的问题是调整我的 winMove(); function 以便根据用户选择的当前棋盘尺寸 (SIZE) 进行调整以检查获胜棋步。 我尝试了不同的循环,但无法让它工作。 现在它只适用于 3x3 板。
我仍在学习 c++ 并且我已经坚持了几天,所以我希望友好的人可以提供帮助。 这是我到目前为止的完整程序,希望它不会太乱!
#include <iostream>
using namespace std;
struct TicTacToe
{
char **board;
};
void makeBoard(TicTacToe&);
void deallocBoard(TicTacToe&);
void printBoard(TicTacToe);
bool isDraw(TicTacToe);
void convertInput(char, char, int&, int&);
char winMove(TicTacToe, int, int);
bool validateSIZE(int);
int SIZE = 1;
int main(){
while(SIZE < 3 || SIZE > 9)
{
cout << "Enter number between 3 and 9 for the length of board.\n";
cout << "Example: 4 will make a board with 4 rows and 4 columns: ";
cin >> SIZE;
validateSIZE(SIZE);
}
TicTacToe game;
makeBoard(game);
char winner = 0;
char turn = 'X';
char rowIn, colIn;
int row, column;
while(!winner && !isDraw(game))
{
printBoard(game);
cout << "\nPlayer " << turn << "'s move (input format: a1): ";
cin >> rowIn >> colIn;
convertInput(rowIn, colIn, row, column);
if (game.board[row][column]==' ')
{
game.board[row][column] = turn;
if (turn == 'X')
{turn = 'O';}
else
{turn = 'X';}
winner = winMove(game, row, column);
}
else
cout << "Taken, try again!\n";
}
printBoard(game);
if (winner == 'X' || winner == 'O')
{cout << " Congrats, the winner is " << winner << '.' << endl;}
else
{cout << " Game ends in a draw." << endl;}
cout << endl << "Game Over!" << endl << endl;
deallocBoard(game);
return 0;
}
// Need help with this function.
char winMove(TicTacToe gameIn, int i, int j)
{
//row win
if (gameIn.board[i][0]==gameIn.board[i][1] &&
gameIn.board[i][0]==gameIn.board[i][2])
{
return gameIn.board[i][j];
}
//column win
if (gameIn.board[0][j]==gameIn.board[1][j] &&
gameIn.board[0][j]==gameIn.board[2][j])
{
return gameIn.board[i][j];
}
//left diagonal win
if (gameIn.board[0][0] != ' ' &&
gameIn.board[0][0] == gameIn.board[1][1] &&
gameIn.board[0][0] == gameIn.board[2][2])
{
return gameIn.board[i][j];
}
//right diagonal win
if (gameIn.board[0][2] != ' ' &&
gameIn.board[0][2] == gameIn.board[1][1] &&
gameIn.board[0][2] == gameIn.board[2][0])
{
return gameIn.board[i][j];
}
return 0;
}
bool validateSIZE(int SIZE)
{
if(SIZE < 3 || SIZE > 9)
{
cout << "\n\nNumber must be between 3 and 9!\nTry again!\nPlease ";
return false;
}
return true;
};
void makeBoard(TicTacToe& gameIn)
{
gameIn.board = new char*[SIZE];
for(int i = 0; i < SIZE; i++)
{gameIn.board[i] = new char[SIZE];}
for(int j =0; j < SIZE; j++)
for(int k = 0; k < SIZE; k++)
{gameIn.board[j][k] = ' ';}
}
void deallocBoard(TicTacToe& gameIn)
{
for(int i = 0; i < SIZE; i++)
delete [] gameIn.board[i];
delete [] gameIn.board;
gameIn.board = NULL;
}
void printBoard(TicTacToe gameIn)
{
int temp = 1;
cout << " ";
while(temp < SIZE + 1)
{
cout << temp << " ";
temp++;
}
temp = 1;
cout << endl;
for(int i = 0; i < SIZE; i++)
{
cout << char(i + 'a') << '|';
for(int j = 0; j < SIZE; j++)
{
cout << gameIn.board[i][j] << '|';
}
cout << endl;
}
}
bool isDraw(TicTacToe gameIn)
{
bool full = true;
for(int i = 0; full && i < SIZE; i++)
for(int j = 0; full && j < SIZE; j++)
full = gameIn.board[i][j] != ' ';
return full;
}
void convertInput(char rowIn, char colIn, int& row, int& column)
{
row = toupper(rowIn) - 'A';
column = colIn - '1';
}
您可以轻松地使用 2 个 for 循环来迭代每个起点及其方向以进行胜利检查。 看起来像这样的东西:
// hor ver diagonals
// dx[4] = {1, 0, 1, 1};
// dy[4] = {0, 1, 1, -1};
// check horizontal win
for(int i = 0; i < SIZE; ++i)
{
bool win = true;
for(int j = 1; j < SIZE; ++j)
{
if(gameIn.board[j][i] != gameIn.board[j - 1][i])
{
win = false;
break;
}
}
if(win == true){return ;}
}
// check vertical win
.
.
.
// check diagonal 1 win
for(int i = 1; i < SIZE; ++i)
{
if(gameIn.board[i][i] != gameIn.board[i - 1][i - 1])
break;
if(i == SIZE - 1)return ;
}
// check diagonal 2 win
for(int i = 1; i < SIZE; ++i)
{
if(gameIn.board[i][SIZE - i - 1] != gameIn.board[i - 1][SIZE - i])
break;
if(i == SIZE - 1)return ;
}
我会把垂直胜利留给你。
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