// returns the fallen distance of the piece
public int Drop(Tetrimino next)
{
int distance = Board.DropDistance(Piece);
// TODO: check this again!
if (distance < 0 && Board.Intersects(Piece))
{
throw new GameOverException();
}
// let piece fall
Piece.Fall(distance);
Board.Place(Piece);
Piece = null;
// remove lines
int lines = Board.RemoveLines();
Lines += lines;
// calculate score
Score += TetrisScore.GetSoftdropScore(distance);
Score += TetrisScore.GetLineScore(lines, Level);
if (NextPiece.HasValue)
{
// TODO: only generate new piece if this is explicitly wanted!
Piece = new Piece(NextPiece.Value);
NextPiece = next;
}
return(distance);
}
internal void DropUnchecked(int distance)
{
// let piece fall
Piece.Fall(distance);
Board.PlaceUnchecked(Piece);
Pieces.Push(new Piece(Piece)); // we need to remember the dropped pieces for the landing height feature (heuristic)
Piece = null;
// remove lines
int lines = Board.RemoveLines();
Lines += lines;
// calculate score
Score += TetrisScore.GetSoftdropScore(distance);
Score += TetrisScore.GetLineScore(lines, Level);
if (NextPiece.HasValue)
{
Piece = new Piece(NextPiece.Value);
NextPiece = Tetriminos.GetRandom();
}
}
