TicTacToc.cpp

#include <iostream>
#include <conio.h>

using namespace std;

void printInputMatrix();
void printBoard();
int addMark();
int check();

char board[3][3] = {' ',' ',' ',
					' ',' ',' ',
					' ',' ',' '};
int turn = 1; //1-Player 1 | 0-Player 2
char mark = 'O'; //O-Player 1 | X-Player 2
int input;
 
int main(){


	int won = 0;
	int validInput = 0;

	for(int i=0; i<9; i++){
		system("cls");
		printBoard();
		if(turn) cout<<"Player 1 Turn (Symbol: O)"<<endl;
		else cout<<"Player 2 Turn (Symbol: X)"<<endl;
		printInputMatrix();
		cout<<"Enter Input from Input Matrix: ";
		cin>>input;
		while(input<0 || input>9){
			cout<<"Invalid Input. Please Re-Enter input: ";
			cin>>input;
		}
		if(turn) mark = 'O';
		else mark = 'X';

		validInput = addMark();
		if( !validInput ){
			i--;
			continue;
		}
		won = check();
		if( won){
			system("cls");
			printBoard();
			if(turn) cout<<endl<<"*** Player 1 - You Won ***";
			else cout<<endl<<"*** Player 2 - You Won ***";
			getch();
			break;
		}
		if(i==8){
			system("cls");
			printBoard();
			cout<<endl<<"*** MATCH DRAW ***";
		}

		turn = !turn;
	}
	system("cls");

	return 0;
	 }

void printInputMatrix(){
	cout<<endl<<endl<<"INPUT MATRIX"<<endl;
	cout<<" 1 | 2 | 3 "<<endl;
	cout<<"------------"<<endl;
	cout<<" 4 | 5 | 6 "<<endl;
	cout<<"------------"<<endl;
	cout<<" 7 | 8 | 9 "<<endl;
}
void printBoard(){
	cout<<" "<<board[0][0]<<" | "<<board[0][1]<<" | "<<board[0][2]<<" "<<endl;
	cout<<"------------"<<endl;
	cout<<" "<<board[1][0]<<" | "<<board[1][1]<<" | "<<board[1][2]<<" "<<endl;
	cout<<"------------"<<endl;
	cout<<" "<<board[2][0]<<" | "<<board[2][1]<<" | "<<board[2][2]<<" "<<endl;
}
int addMark(){
	for(int i=0,k=1; i<3; i++ ){
		for(int j=0; j<3; j++,k++){
			if( k==input )
				if(board[i][j] == ' '){
					board[i][j] = mark;
					return 1;
				}
				else{
					cout<<"Invalid Input";
					getch();
					return 0;
				}
		}
	}
}
int check(){
	//checking rows
	if(board[0][0]==mark && board[0][1]==mark && board[0][2]==mark)
		return 1;
	if(board[1][0]==mark && board[1][1]==mark && board[1][2]==mark)
		return 1;
	if(board[2][0]==mark && board[2][1]==mark && board[2][2]==mark)
		return 1;
	//checking Columns
	if(board[0][0]==mark && board[1][0]==mark && board[2][0]==mark)
		return 1;
	if(board[0][1]==mark && board[1][1]==mark && board[2][1]==mark)
		return 1;
	if(board[0][2]==mark && board[1][2]==mark && board[2][2]==mark)
		return 1;

	//checking diagonals
	if(board[0][0]==mark && board[1][1]==mark && board[2][2]==mark)
		return 1;
	if(board[0][2]==mark && board[1][1]==mark && board[2][0]==mark)
		return 1;

	return 0;
}

//TIC TAC TOC Game using c++