public GameState()
{
IsPlayerTwo = false;
PieceToMove = null;
LastMove = null;
BoardPositions = new Piece[8][];
for (int i = 0; i < 8; i++)
{
BoardPositions[i] = new Piece[8];
for (int j = 0; j < 8; j++)
{
BoardPositions[i][j] = null;
}
}
PiecePositions = new Piece[2][];
PiecePositions[0] = new Piece[8];
PiecePositions[1] = new Piece[8];
for (int i = 0; i < 8; i++)
{
PiecePositions[0][i] = new Piece(false, new Point(i, 7), (PieceColor)i, 0);
BoardPositions[7][i] = PiecePositions[0][i];
PiecePositions[1][i] = new Piece(true, new Point(7 - i, 0), (PieceColor)i, 0);
BoardPositions[0][7 - i] = PiecePositions[1][i];
}
}
public Move(GameState state, Piece piece, Point end)
{
_state = state;
_piece = piece;
_end = end;
_start = _piece.Position;
}
public SumoDazedMove(GameState state, Piece piece)
{
_state = state;
_piece = piece;
_end = _piece.Position;
_start = _piece.Position;
}
public GameState Execute()
{
_numPushed = 0;
_oldPieceToMove = _state.PieceToMove;
_oldLastMove = _state.LastMove;
_start = _piece.Position;
int ystep = _end.Y - _start.Y;
_state.BoardPositions[_piece.Position.Y][_piece.Position.X] = null;
Piece currentPiece = _piece;
while (_state.BoardPositions[currentPiece.Position.Y + ystep][currentPiece.Position.X] != null)
{
Piece next = _state.BoardPositions[currentPiece.Position.Y + ystep][currentPiece.Position.X];
_state.BoardPositions[currentPiece.Position.Y + ystep][currentPiece.Position.X] = currentPiece;
currentPiece.Position = new Point(currentPiece.Position.X, currentPiece.Position.Y + ystep);
currentPiece = next;
_numPushed++;
}
_state.BoardPositions[currentPiece.Position.Y + ystep][currentPiece.Position.X] = currentPiece;
currentPiece.Position = new Point(currentPiece.Position.X, currentPiece.Position.Y + ystep);
_state.IsPlayerTwo = !_state.IsPlayerTwo;
_state.PieceToMove = currentPiece;
_state.LastMove = this;
List<IMove> possible = new List<IMove>();
possible.Add(new SumoDazedMove(_state, currentPiece));
_state.PossibleMoves = possible;
return _state;
}
public GameState(List<Piece> ps, Piece pToMove)
{
List<Piece> pieces = new List<Piece>();
Piece pieceToMove = null;
foreach (Piece p in ps)
{
pieces.Add(p.Copy());
}
if (pToMove != null)
{
foreach (Piece p in pieces)
{
if (p.Position.Equals(pToMove.Position))
{
pieceToMove = p;
break;
}
}
}
if (pieceToMove == null)
{
IsPlayerTwo = false;
PieceToMove = null;
}
else
{
IsPlayerTwo = pieceToMove.BelongsToPlayerTwo;
PieceToMove = pieceToMove;
}
LastMove = null;
BoardPositions = new Piece[8][];
for (int i = 0; i < 8; i++)
{
BoardPositions[i] = new Piece[8];
for (int j = 0; j < 8; j++)
{
BoardPositions[i][j] = null;
}
}
PiecePositions = new Piece[2][];
PiecePositions[0] = new Piece[8];
PiecePositions[1] = new Piece[8];
foreach (Piece piece in pieces)
{
BoardPositions[piece.Position.Y][piece.Position.X] = piece;
PiecePositions[piece.BelongsToPlayerTwo ? 1 : 0][(int)piece.Color] = piece;
}
}
public GameState Execute()
{
_oldPieceToMove = _state.PieceToMove;
_oldLastMove = _state.LastMove;
_state.IsPlayerTwo = !_state.IsPlayerTwo;
_state.PieceToMove = _state.PiecePositions[_state.IsPlayerTwo ? 1 : 0][(int)Board.Tile[_end.Y, _end.X]];
_state.PossibleMoves = null;
_state.LastMove = this;
return _state;
}
public GamePlayViewModel(GameEngine engine)
{
_engine = engine;
UpdateDisplayState();
_selectedPiece = null;
SelectTileCommand = new RelayCommand(param =>
{
if (engine.ActivePlayer is Human && _selectedPiece == null)
{
Point chosenPoint = ParamToPoint(param);
if ((engine.CurrentState.PieceToMove == null && chosenPoint.Y == 7)
|| (engine.CurrentState.PieceToMove != null && chosenPoint.Equals(engine.CurrentState.PieceToMove.Position)))
{
_selectedPiece = _engine.CurrentState.BoardPositions[chosenPoint.Y][chosenPoint.X];
}
}
else if (engine.ActivePlayer is Human)
{
Point chosenPoint = ParamToPoint(param);
IMove chosenMove = null;
foreach (IMove move in engine.CurrentState.PossibleMoves)
{
if(move.Piece == _selectedPiece && move.End.Equals(chosenPoint))
{
chosenMove = move;
break;
}
}
if(chosenMove != null)
{
(engine.ActivePlayer as Human).ChosenMove = chosenMove;
(engine.ActivePlayer as Human).GotMove = true;
_selectedPiece = null;
}
}
}, param => { return true; });
}
public SumoPushMove(GameState state, Piece piece, Point end)
{
_state = state;
_piece = piece;
_end = end;
}