/*
  tictac_lib.h

  Library header file to define helper functions to create a
  two-player tic-tac-toe game (text-based).

  The 'board' is reprsented by a N by N tabe (2D array), where N
  should be between 3 and 10. The 'player' symbols are single
  characters (defined as constants).
*/

// Returns true is 'row' has N 'player' symbols
int isRowFull(char board[10][10], int N, char player, int row);

// Returns true if 'col' has N 'player' symbols
int isColFull(char board[10][10], int N, char player, int col);

// Returns true if the main diagonal contains N 'player' symbols
int isDiagFull(char board[10][10], int N, char player);

// Returns true if the minor diagonal contains N 'player' symbols
int isMinorDiagFull(char board[10][10], int N, char player);

// Returns true if there are N 'player' symbols in any row, column,
// or diagonal
int hasPlayerWon(char board[10][10], int N, char player);

// Returns true if all spots are occupied
int gameOver(char board[10][10], int N);

// Initialize the board to 'empty' characters
void init_board(char board[10][10], int N);

// Displays the board with the 'player' symbols
void show_board(char board[10][10], int N);

// Asks the user for row and column of symbol and, if the input is
// valid, places the 'player' symbol at the indicated slot.
void getMove(char board[10][10], int N, char player);