public void ApplyMovement(Piece piece, Square oldSquare, Square newSquare)
{
if (newSquare.Piece != null)
return;
PieceMovement movement = this.GetValidMovement(piece, oldSquare, newSquare);
if (movement == null)
return;
oldSquare.Piece = null;
newSquare.Piece = piece;
DrawingManager.Instance.DrawableObjects.Add(oldSquare);
DrawingManager.Instance.DrawableObjects.Add(newSquare);
piece.Selected = false;
if (movement.JumpPosition != null)
{
BoardPosition killPosition = oldSquare.BoardPosition + movement.JumpPosition;
Square killSquare = _draughts.Board[killPosition];
killSquare.Piece = null;
DrawingManager.Instance.DrawableObjects.Add(killSquare);
}
if (piece is CommonPiece && ((piece.BoardPosition.I == 7 && piece.Color == PieceColor.Black) ||
(piece.BoardPosition.I == 0 && piece.Color == PieceColor.White)))
{
newSquare.Piece = new QueenPiece(piece.Color, piece.BoardPosition);
if (this.PieceUpgraded != null)
this.PieceUpgraded(this, new PieceEventArgs(newSquare.Piece));
_draughts.ChangePlayer();
}
else
this.ChangePlayerIfNeeded(piece, movement);
this.CheckPlayerVictory();
}
private PieceMovement GetValidMovement(Piece piece, Square oldSquare, Square newSquare)
{
if (newSquare.Piece != null)
return null;
List<PieceMovement> pieceValidMovements = this.GetValidMovements(piece);
PieceMovement newMovement = pieceValidMovements.FirstOrDefault(m => (oldSquare.BoardPosition + m.BoardMovement).Equals(newSquare.BoardPosition));
if (newMovement == null)
return null;
if (newMovement.JumpPosition == null)
{
List<PieceMovement> allPiecesValidMovements = this.GetPlayerValidMovements(_draughts.CurrentPlayer);
return allPiecesValidMovements.FirstOrDefault(m => m.JumpPosition != null) == null ? newMovement : null;
}
else if (!(piece is QueenPiece))
{
if (this.CheckIfPlayerHasQueenJumpMovements())
return null;
}
return newMovement;
}
public bool ValidateNewPosition(Piece piece, Square oldSquare, Square newSquare)
{
PieceMovement movement = this.GetValidMovement(piece, oldSquare, newSquare);
//newSquare.Invalid = movement == null;
if (movement == null)
return false;
return true;
}