/*****************************************************************************
// File Name :         Schillage_Austin_1
// Author :            Austin Schillage
// Creation Date :     February 19, 2021
//
// Brief Description : Checks the tic tac toe game status and decides the  
                       game state. 
*****************************************************************************/
using UnityEngine;

public class Schillage_Austin_1 : MonoBehaviour
{
    /// <summary>
    /// A global array that represents the 3x3 board. Originally it is filled 
    /// with -1 in all 9 slots
    /// </summary>
    public int[] gameBoard = { -1, -1, -1, -1, -1, -1, -1, -1, -1 };

    /// <summary>
    ///  Checks the state of the board and returns an integer
    ///  that equals the state of the game
    /// </summary>
    /// <returns> 0 = X wins, 1 = O win
    /// -1 = Tie, -2 = Unfinished </returns>
    public int ReturnGameStatus()
    {
        if (gameBoard[0] != -1
        && gameBoard[0] == gameBoard[1] && gameBoard[1] == gameBoard[2])
        {
            return gameBoard[0];
        }
        else if (gameBoard[3] != -1
        && gameBoard[3] == gameBoard[4] && gameBoard[4] == gameBoard[5])
        {
            return gameBoard[3];
        }
        else if (gameBoard[6] != -1
        && gameBoard[6] == gameBoard[7] && gameBoard[7] == gameBoard[8])
        {
            return gameBoard[6];
        }
        else if (gameBoard[0] != -1
        && gameBoard[0] == gameBoard[3] && gameBoard[3] == gameBoard[6])
        {
            return gameBoard[0];
        }
        else if (gameBoard[1] != -1 &&
        gameBoard[1] == gameBoard[4] && gameBoard[4] == gameBoard[7])
        {
            return gameBoard[1];
        }
        else if (gameBoard[2] != -1 &&
        gameBoard[2] == gameBoard[5] && gameBoard[5] == gameBoard[8])
        {
            return gameBoard[2];
        }
        else if (gameBoard[0] != -1
        && gameBoard[0] == gameBoard[4] && gameBoard[4] == gameBoard[8])
        {
            return gameBoard[0];
        }
        else if (gameBoard[2] != -1
        && gameBoard[2] == gameBoard[4] && gameBoard[4] == gameBoard[6])
        {
            return gameBoard[2];
        }
        else if (gameBoard[0] != -1 && gameBoard[1] != -1 &&
            gameBoard[2] != -1 && gameBoard[3] != -1 &&
            gameBoard[4] != -1 && gameBoard[5] != -1 &&
            gameBoard[6] != -1 && gameBoard[7] != -1 &&
            gameBoard[8] != -1)
        {
            return -1;
        }
        return -2;
    }
}