// GameBoard.cpp
  include <GameBoard.h>
  
  // Microsoft Visual Studio requires you to omit the following two lines.
  // However, some compilers require them.
  //const int GameBoard::kDefaultWidth;
  //const int GameBoard::kDefaultHeight;
  
  GameBoard::GameBoard(int inWidth, int inHeight) :
    mWidth(inWidth), mHeight(inHeight)
  {
    mCells = new GamePiece* [mWidth];
    for (int i = 0; i < mWidth; i++) {
      mCells[i] = new GamePiece[mHeight];
    }
  }
  
  GameBoard::GameBoard(const GameBoard& src)
  {
    copyFrom(src);
  }
  
  GameBoard::~GameBoard()
  {
    // free the old memory
    for (int i = 0; i < mWidth; i++) {
      delete [] mCells[i];
    }
  
    delete [] mCells;
  }
  
  void GameBoard::copyFrom(const GameBoard& src)
  {
    int i, j;
    mWidth = src.mWidth;
    mHeight = src.mHeight;
  
    mCells = new GamePiece* [mWidth];
    for (i = 0; i < mWidth; i++) {
      mCells[i] = new GamePiece[mHeight];
    }
    for (i = 0; i < mWidth; i++) {
      for (j = 0; j < mHeight; j++) {
        mCells[i][j] = src.mCells[i][j];
      }
    }
  }
  
  GameBoard& GameBoard::operator=(const GameBoard& rhs)
  {
    // check for self-assignment
    if (this == &rhs) {
      return (*this);
    }
    // free the old memory
    for (int i = 0; i < mWidth; i++) {
      delete [] mCells[i];
    }
    delete [] mCells;
  
    // copy the new memory
    copyFrom(rhs);
  
    return (*this);
  }
  
  void GameBoard::setPieceAt(int x, int y, const GamePiece& inElem)
  {
    mCells[x][y] = inElem;
  }
  
  GamePiece& GameBoard::getPieceAt(int x, int y)
  {
    return (mCells[x][y]);
  }
  
  const GamePiece& GameBoard::getPieceAt(int x, int y) const
  {
    return (mCells[x][y]);
  }