made a very simple tic-tac-toe game in cpp

Author: [Divyansh Jain]

games/tic_tac_toe_game.cpp

@@ -0,0 +1,114 @@
+#include <iostream>
+using namespace std;
+
+
+
+char board[3][3] = { {'1','2','3'}, {'4','5','6'}, {'7','8','9'} };
+char current_marker;
+int current_player;
+
+
+
+
+void drawBoard() {
+    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;
+}
+
+bool placeMarker(int slot) {
+    int row = (slot - 1) / 3;
+    int col = (slot - 1) % 3;
+
+    if (board[row][col] != 'X' && board[row][col] != 'O') {
+        board[row][col] = current_marker;
+        return true;
+    } else {
+        return false;
+    }
+}
+
+
+int winner() {
+    // Rows
+    for (int i = 0; i < 3; i++) {
+        if (board[i][0] == board[i][1] && board[i][1] == board[i][2]) return current_player;
+    }
+
+    // Columns
+    for (int i = 0; i < 3; i++) {
+        if (board[0][i] == board[1][i] && board[1][i] == board[2][i]) return current_player;
+    }
+
+    // Diagonals
+    if (board[0][0] == board[1][1] && board[1][1] == board[2][2]) return current_player;
+    if (board[0][2] == board[1][1] && board[1][1] == board[2][0]) return current_player;
+
+    return 0;
+}
+
+void swapPlayerAndMarker() {
+    if (current_marker == 'X') current_marker = 'O';
+    else current_marker = 'X';
+
+    if (current_player == 1) current_player = 2;
+    else current_player = 1;
+}
+
+
+
+
+void game() {
+    cout << "Player 1, choose your marker: X or O: ";
+    char marker_p1;
+    cin >> marker_p1;
+
+    current_player = 1;
+    current_marker = marker_p1;
+
+    drawBoard();
+
+    int player_won;
+
+    for (int i = 0; i < 9; i++) {
+        cout << "It's player " << current_player << "'s turn. Enter your slot: ";
+        int slot;
+        cin >> slot;
+
+        if (slot < 1 || slot > 9 || !placeMarker(slot)) {
+            cout << "Invalid move, try again.\n";
+            i--;
+            continue;
+        }
+
+        drawBoard();
+        player_won = winner();
+
+        if (player_won == 1) { cout << "Player 1 wins!\n"; break; }
+        if (player_won == 2) { cout << "Player 2 wins!\n"; break; }
+
+        swapPlayerAndMarker();
+    }
+
+    if (player_won == 0) cout << "It's a tie!\n";
+}
+
+int main() {
+    bool yorn=true;
+    while(yorn){
+        cout<<"Do you want to play?"<<"\n Y/N"<<endl;
+        char ch;
+        cin>>ch;
+        if(ch=='Y'){
+            yorn==true;
+        }
+        else{
+            yorn==false;
+            break;
+        }
+        game();   
+    }
+    return 0;
+}