4x4井字游戏

#include <iostream>

using namespace std;



class Board
{
char board[4][4];
public:
Board()
{
    for(int i=0;i<4;i++)
    {
        for(int j=0;j<4;j++)
        {
            board[i][j]='_';
        }
    }
}


void printBoard()
{

    for(int i=0;i<4;i++)
    {
        for(int j=0;j<4;j++)
        {
            cout<<board[i][j]<<'|';
        }
    cout<<endl;
    }
cout<<endl;
}
int setPosition(char choice)
{
while(1)
{
int row,column;
cout<<"Please enter the row and column"<<endl;
cin>>row>>column;
if(board[row][column]=='_')
{
board[row][column]=choice;
break;

}
else
{
cout<<"Position is taken"<<endl;

}
}
}
char getPosition()
{
for(int i=0;i<4;i++)
{
    for(int j=0;j<4;j++)
    {
        return board[i][j];
    }
    }

}
int checkHorizontal(char choice)
{


int count;
for(int i=0;i<4;i++)
{
    count=0;
    for(int j=0;j<4;j++)
    {
        if(board[i][j]==choice)
        {
            count++;
        }
        if(count==4)
        {

            return 1;
        }
    }

}
return 0;
}
int checkVertical(char choice)
{
int count;
for(int i=0;i<4;i++)
{
    count=0;
    for(int j=0;j<4;j++)
    {
        if(board[j][i]==choice)
        {
            count++;
        }
        if(count==4)
        {

            return 1;
        }
    }

}
return 0;
}
int checkprincipalDiagonal(char choice)
{
int count=0;
for(int i=0;i<4;i++)
{
    if (board[i][i]==choice)
    {
        count++;
    }

    }
if(count==4)
{

  return 1;
}


return 0;
}
int checkotherDiagonal(char choice)
{
int count=0;
for(int i=0;i<4;i++)
{

    for(int j=0;j<4;j++)
    {

        if((i+j)%3==0 && i!=j)
        {
         if (board[i][j]==choice)
        {
           count++;
        }
        }


    }
}

if(count==4)
{

    return 1;
}
    else
    {
        return 0;
    }
}
int checkDraw()
{
for(int i=0;i<4;i++)
{
    for(int j=0;j<4;j++)
    {
        if(board[i][j]=='_')
        {
            return 1;
            break;
        }

    }
 }
return 0;
}

};
class Player
{
string Name;
char choice;
public:
void setName(string NameIn)
{
 Name=NameIn;
}
void setChoice(char choiceIn)
{
    choice=choiceIn;
}
char getChoice()
{
    return choice;
    cout<<endl<<endl;
}

string getName()
{
    return Name;
    cout<<endl<<endl;
}
};
int main()
{
char choice1,choice2;
string Name1,Name2;
Board b1;
cout<<"The board is printed below:"<<endl;
b1.printBoard();
cout<<endl;
Player p1,p2;
cout<<"Player 1,Please Enter your name"<<endl<<endl;
cin>>Name1;
cout<<endl<<endl<<"Player 2,Please Enter your name"<<endl<<endl;
cin>>Name2;
p1.setName(Name1);
p2.setName(Name2);
cout<<endl<<endl<<"Player 1,Please Enter a character to use"<<endl<<endl;
cin>>choice1;
cout<<endl<<endl<<"Player 2,Please Enter a character to use"<<endl<<endl;
cin>>choice2;
p1.setChoice(choice1);
p2.setChoice(choice2);
while(1)
{
cout<<endl<<endl<<"Your turn,"<<Name1<<endl<<endl;
b1.setPosition(choice1);
b1.getPosition();
b1.printBoard();
if(b1.checkHorizontal(choice1)==1 || b1.checkVertical(choice1)==1|| 
b1.checkprincipalDiagonal(choice1)==1 || b1.checkotherDiagonal(choice1)==1)
{
    cout<<endl<<endl<<"Congrats"<<"\t"<<Name1<<"\t"<<"You have won"<<endl;
    break;
}
cout<<endl<<endl<<"Your turn,"<<Name2<<endl<<endl;
b1.setPosition(choice2);
b1.getPosition();
b1.printBoard();

if(b1.checkHorizontal(choice2)==1 || b1.checkVertical(choice2)==1|| 
b1.checkprincipalDiagonal(choice2)==1 || b1.checkotherDiagonal(choice2)==1)
{
    cout<<endl<<endl<<"Congrats "<<Name2<<" You Have won!"<<endl;
    break;
}
if(b1.checkDraw()==0)
{
    cout<<endl<<endl<<"The match is a draw!"<<endl;
    break;
}


}



}

Please enter the row and column
1,4
_|_|_|_|
a|_|_|_|
_|_|_|_|
_|_|_|_|



Your turn,Roland

Please enter the row and column
Position is taken
Please enter the row and column
Position is taken
Please enter the row and column
Position is taken
Please enter the row and column
Position is taken
...

void play(Board &board, Player &player) {
    while (true) {
        std::cout << "Please enter the row and column (1..4): ";

        // If a simple string cannot be read, something is seriously
        // broken. Stop the whole program.
        std::string line;
        if (!std::getline(std::cin, line)) {
            std::exit(std::cin.eof() ? 0 : 1);
        }

        // Let the user type the coordinates either as "1 4"
        // or as "1,4" or "1, 4" or any other variant.
        std::replace(line.begin(), line.end(), ',', ' ');

        int row, column;
        if (!(std::stringstream(line) >> row >> column)) {
            std::cout << "Please enter two numbers\n";
            continue;
        }

        // Make sure that the coordinates are correct.
        // Otherwise the program may crash or do something entirely different.
        // This is called "undefined behavior" and it should frighten you.
        row--;
        column--;
        if (!(0 <= row && row < 4 && 0 <= column && column < 4)) {
            std::cout << "Please enter only numbers in the range 1..4\n";
            continue;
        }

        if (board.at(row, column) != '_') {
            std::cout << "Position is already taken\n";
            continue;
        }

        board.playAt(row, column, player);
        return;
    }
}

Player input(const std::string &defaultName, char defaultSymbol) {
    std::string line;
    Player player;

    std::cout << defaultName << ", please enter your name: ";
    if (std::getline(std::cin, line) && !line.empty()) {
        player.name = line;
    } else {
        player.name = defaultName;
    }

    std::cout << player.name << ", please enter a character to use: ";
    if (std::getline(std::cin, line) && !line.empty()) {
        player.symbol = line[0];
    } else {
        player.symbol = defaultSymbol;
    }

    return player;
}

int main() {
    Player p1 = input("Player 1", 'x');
    Player p2 = input("Player 2", 'o');
    Board board;

    ...
}