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

namespace BoardGame
{
    class Board     // 2D board game
    {
        // Attributes
        private char[,] _board;
        private int _width;
        private int _height;
        private char _reset;    // Represents empty cell on board

        // Constructors
        public Board(int width, int height, char resetChar)
        {
            _width = width;
            _height = height;
            _reset = resetChar;
            _board = new char[_width, _height];
            Reset();  // Empty the board
        }

        // Properties

        // Methods
        public int GetWidth()
        {
            return _width;
        }

        public int GetHeight()
        {
            return _height;
        }

        public void Reset()
        {
            for (int y = 0; y < _height; y++)
            {
                for (int x = 0; x < _width; x++)
                {
                    _board[x, y] = _reset;  // Fill board with "empty" cell char
                }
            }
        }

        public void Display()
        {
            // Replace the line below with the following
            // line if you need y=0  at top left of display
            //for (int y = 0; y < _height; y++)
            for (int y = _height-1; y >= 0; y--)
            {
                for (int x = 0; x < _width; x++)
                {
                    Console.Write("{0} ", _board[x, y]);
                }
                Console.WriteLine();  // Move to next line at end of row
            }
        }

        // Is the provided position legal
        public bool IsValidPosition(int x, int y)
        {
            if (x >= 0 && x < _width)
            {
                if (y >= 0 && y < _height)
                {
                    return true;
                }
            }
            return false;
        }

        public bool SetValue(int x, int y, char value)
        {
            if (IsValidPosition(x, y) == true)
            {
                _board[x, y] = value;
                return true;
            }
            return false;
        }

        public bool GetValue(int x, int y, out char value)
        {
            value = ' '; // Bogus to avoid compile error
            if (IsValidPosition(x, y) == true)
            {
                value = _board[x, y];
                return true;
            }
            return false;
        }

    }
}