Reversi for Windows Mobile

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;

namespace GameExample.Reversi
{
    /// <summary>
    /// The game board.
    /// </summary>
    public class Board
    {
        /// <summary>
        /// The width of the board.
        /// </summary>
        private readonly int _boardWidth;
        /// <summary>
        /// The height of the board.
        /// </summary>
        private readonly int _boardHeight;
        /// <summary>
        /// The board data.
        /// </summary>
        private readonly Position[] _data;


        /// <summary>
        /// Initializes a new instance of the <see cref="Board"/> class.
        /// </summary>
        /// <param name="size">The size.</param>
        public Board(int size)
            : this ( size,size)
        {

        }

        /// <summary>
        /// Initializes a new instance of the <see cref="Board"/> class.
        /// </summary>
        /// <param name="width">The width.</param>
        /// <param name="height">The height.</param>
        public Board(int width, int height)
        {
            if (width < 3 || (width % 2) != 0)
            {
                throw new ArgumentException();
            }
            if (height < 3 || (height % 2) != 0)
            {
                throw new ArgumentException();
            }
            _data = CreateBoard(width, height);
            _boardHeight = height;
            _boardWidth = width;
        }

        /// <summary>
        /// Creates the board.
        /// </summary>
        /// <param name="size">The size.</param>
        /// <returns></returns>
        private static Position[] CreateBoard(int width, int height)
        {
            int centerX = width / 2, centerY = height / 2;
            int cellCount = width * height;
            Position[] data = new Position[cellCount];

            // Set the four center points
            data[((centerY * width) + centerX)] = new Position(Player.PlayerTwo);
            data[(((centerY - 1) * width) + centerX)] = new Position(Player.PlayerOne);
            data[((centerY * width) + (centerX - 1))] = new Position(Player.PlayerOne);
            data[(((centerY - 1) * width) + (centerX - 1))] = new Position(Player.PlayerTwo);
            
            return data;
        }

        /// <summary>
        /// Gets the <see cref="GameExample.Reversi.Position"/> with the specified coordinates
        /// </summary>
        /// <value></value>
        public Position this[int x, int y]
        {
            get
            {
                if (x >= _boardWidth)
                {
                    throw new ArgumentOutOfRangeException("x", "X must be greater than or equal to zero and less than the board size !");
                }
                if (y >= _boardHeight)
                {
                    throw new ArgumentOutOfRangeException("y", "Y must be greater than or equal to zero and less than the board size !");
                }

                return _data[(y * _boardWidth) + x];
            }
            set {
                if (x >= _boardWidth)
                {
                    throw new ArgumentOutOfRangeException("x", "X must be greater than or equal to zero and less than the board size !");
                }
                if (y >= _boardHeight)
                {
                    throw new ArgumentOutOfRangeException("y", "Y must be greater than or equal to zero and less than the board size !");
                }

                _data[(y * _boardWidth) + x] = value;
            }
        }

        /// <summary>
        /// Gets the board data.
        /// </summary>
        /// <value>The data.</value>
        public Position[] Data
        {
            get
            {
                return _data;
            }
        }

        public int BoardWidth
        {
            get
            {
                return _boardWidth;
            }
        }

        public int BoardHeight
        {
            get
            {
                return _boardHeight;
            }
        }
        
    }


}