Hello guys I had an Exercise for a Noughts and Crosses game and i thought maybe it could help whoever needs to get an idea of Classes and Arrays.

``````#include <iostream>
using namespace std;

class CNoughts
{

private:
int grid[3][3];

public:
void Initialise();
void Grid();
void PlayerInput();
int Player,i,j;
int Winning();
int Drawing();
};
void CNoughts::Initialise()//Sets Initial value in the grid as 0
{

for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
grid[i][j] = 0;
}
}
}

void CNoughts::Grid()//Creates the Grid on the screen!
{
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
cout << "[ " << grid[i][j] << " ]";
}
cout << endl;
}
}

void CNoughts::PlayerInput()//Selects the current player putting a value in the grid.
{
do
{
cout << "\nEnter the current player [1 or 2] : ";
cin >> Player;
}
while ( 0>= Player > 2); //Doesn't allow the player to enter any other integer than 1 or 2.

do
{
do
{
cout << "Please enter the Row: ";
cin >> i;
}
while( i<0 || i>2);//Check if player has put for row a number from 0 to 2.
do
{
cout << "Please enter the Collumn: ";
cin >> j;
}
while( j<0 || j>2);//Check if player has put for Collumn a number from 0 to 2.
cout << endl;
grid[i][j] = Player;//Assisgns the number(1 or 2) of the current player in the possition he chose in the grid.
}
while (grid[i][j]==0);

}
int CNoughts::Winning()
{
//Check if Player 1 has won
if (grid[0][0]==1 && grid[0][1]==1 && grid[0][2]==1) //Orizontal win for player 1
{
return 1;
}
if (grid[1][0]==1 && grid[1][1]==1 && grid[1][2]==1)
{
return 1;
}
if (grid[2][0]==1 && grid[2][1]==1 && grid[2][2]==1)
{
return 1;
}
if (grid[0][0]==1 && grid[1][0]==1 && grid[2][0]==1)//Vertical win for player 1
{
return 1;
}
if (grid[0][1]==1 && grid[1][1]==1 && grid[2][1]==1)
{
return 1;
}
if (grid[0][2]==1 && grid[1][2]==1 && grid[2][2]==1)
{
return 1;
}
if (grid[0][0]==1 && grid[1][1]==1 && grid[2][2]==1)//Diagonal win for player 1
{
return 1;
}
if (grid[0][2]==1 && grid[1][1]==1 && grid[2][0]==1)
{
return 1;
}

//Check if Player 2 has won
if (grid[0][0]==2 && grid[0][1]==2 && grid[0][2]==2)//Orizontal win for player 2
{
return 1;
}
if (grid[1][0]==2 && grid[1][1]==2 && grid[1][2]==2)
{
return 1;
}
if (grid[2][0]==2 && grid[2][1]==2 && grid[2][2]==2)
{
return 1;
}
if (grid[0][0]==2 && grid[1][0]==2 && grid[2][0]==2)//Vertical win for player 2
{
return 1;
}
if (grid[0][1]==2 && grid[1][1]==2 && grid[2][1]==2)
{
return 1;
}
if (grid[0][2]==2 && grid[1][2]==2 && grid[2][2]==2)
{
return 1;
}
if (grid[0][0]==2 && grid[1][1]==2 && grid[2][2]==2)//Diagonal win for player 2
{
return 1;
}
if (grid[0][2]==2 && grid[1][1]==2 && grid[2][0]==2)
{
return 1;
}
return 0;
}

int CNoughts::Drawing()//Checks if the grid has no more 0's in it and if it becomes 1 then the main will show a msg for Draw.
{
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
if (grid[i][j]==0)
{
return 0;
}
}
}
return 1;
}
int main()
{
CNoughts* Game = new CNoughts;

cout << "TIPS!!\n";
cout << "The Possitions of the game are:\n";
cout << "(0, 0) (0, 1) (0, 2)\n";
cout <<	"(1, 0) (1, 1) (1, 2)\n";
cout <<	"(2, 0) (2, 1) (2, 2)\n";
cout << "When you input Row or Collumn use numbers from 0 to 2!\n";

Game->Initialise();//Creates a 3x3 grid and fills it with all 0's.

do
{
Game->PlayerInput();
Game->Grid();
Game->Winning();
Game->Drawing();
}
while (Game->Winning()!=1 && Game->Drawing()!=1);

if (Game->Drawing()==1)
{
cout << "\nIt is a Draw , Thank you for playing!\n\n";
}
if(Game->Winning()==1)
{
cout << "\nCongratulations player " << Game->Player << " you have won!!!\n\n";
}

system("pause");
delete(Game);
}``````
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