Interface for the Mancala Game state class.

The Mancala board is represented by a 2xC array.
The following shows what indices correspond to the locations of the buckets.
| 1,0 | 1,1 | 1,2 | 1,3 | 1,4 | 1,5 | ...
| 0,0 | 0,1 | 0,2 | 0,3 | 0,4 | 0,5 | ...

Player buckets are stored in a 1x2 array (scores).

public class MancalaGameState {
    // Constructor for a new Mancala gamestate with the specified number of 
    // stones in each bucket
    public MancalaGameState(int startingStones);

    // Creates a copy of the game state
    public MancalaGameState copy();

    // Resets the game to the initial state
    public void reset();

    // Accessors

    // Get the current player
    public int CurrentPlayer();

    // Get the number of stones at the specified bucket
    public int stonesAt(int x, int y);

    // Get the number of rows on the board
    public int rows();

    // Get the number of columns on the board
    public int cols();

    // Check whether the move is valid
    public boolean validMove(int col);

    // Play at a given column, throws an Exception if the move is not valid
    public GameState play(int col) throws Exception;

    // Check if the state is terminal
    public boolean checkEndGame();

    // Compute the final score (should be called once at the end of a game)
    public void computeFinalScore();

    // Get the score of the specified player
    public int getScore(int i);

    // Prints the state in the console
    public void printState()
}