// add move part but omit those that do nothing
void AddMovePart(MovePartModel movepart)
{
if (!IsNoop(movepart))
{
_move.MoveParts.Add(movepart);
}
}
// Create piece from existing with changes
internal PieceModel Create(MovePartModel movepart)
{
var ret = MemberwiseClone() as PieceModel;
_move_lookup[movepart.Kind](ret, movepart);
return(ret);
}
// move part that does nothing
bool IsNoop(MovePartModel mp)
{
if (mp.Kind == MoveKinds.Move || mp.Kind == MoveKinds.Copy)
{
return(mp.Position == mp.Final && mp.Piece == _move.Piece);
}
if (Kind == MoveKinds.Owner)
{
return(mp.Player == _move.Player);
}
if (Kind == MoveKinds.Piece)
{
return(mp.Piece == _move.Piece);
}
return(false);
}
internal void AddSetAttribute(IdentValue ident, BoolValue value)
{
_changes.Add(MovePartModel.CreateSetAttribute(Player, Position, Piece, ident, value));
}
internal void AddDrop(PlayerValue player, PositionValue position, PieceValue piece)
{
_changes.Add(MovePartModel.Create(MoveKinds.Drop, player, position, piece));
}
internal void AddCapture(PositionValue position)
{
_changes.Add(MovePartModel.Create(MoveKinds.Take, Player, position, Piece));
}
internal void AddChangeOwner(PositionValue position, PlayerValue player)
{
_changes.Add(MovePartModel.Create(MoveKinds.Owner, player, position, Piece));
}
internal void AddChangePiece(PositionValue position, PieceValue piece)
{
_changes.Add(MovePartModel.Create(MoveKinds.Piece, Player, position, piece));
}
internal MovePartModel CreateMovePart(PieceValue piece)
{
return((Kind == MoveKinds.Move || Kind == MoveKinds.Copy)
? MovePartModel.Create(Kind, Player, From, piece ?? Piece, To ?? Current)
: MovePartModel.Create(Kind, Player, To ?? Current, piece ?? Piece, null));
}
