internal TryMovePieceResult TryMovePiece(TetrisState state, int rowDelta, int columnDelta)
{
lock (PieceMoveLock) {
SetState(state);
TryMovePieceResult result = new TryMovePieceResult();
bool canMove = CanMovePiece(rowDelta, columnDelta);
if (canMove)
{
MovePiece(CurrentPiece, rowDelta, columnDelta);
result.Moved = true;
}
else
{
bool tryingToMoveDown = rowDelta > 0;
if (tryingToMoveDown)
{
result.DeletedRows = StickPiece();
MakeNewPiece();
if (CurrentPiece == null)
{
result.IsGameEnd = true;
}
}
}
return(result);
}
}
public TetrisState MovePieceAllTheWayDown(TetrisState state)
{
if (State != GameState.Running)
{
return(state);
}
TryMovePieceResult result = BoardLogic.MovePieceAllTheWayDownAndStick(state);
AfterStickPiece(result.DeletedRows, result.IsGameEnd);
TetrisState newState = GetState();
return(newState);
}
internal TryMovePieceResult MovePieceAllTheWayDownAndStick(TetrisState state)
{
lock (PieceMoveLock) {
SetState(state);
int rowDeltaMoved = MovePieceAllTheWayDown(CurrentPiece);
int deletedRows = StickPiece();
MakeNewPiece();
TryMovePieceResult result = new TryMovePieceResult {
Moved = rowDeltaMoved > 0,
DeletedRows = deletedRows,
IsGameEnd = CurrentPiece == null
};
return(result);
}
}
private TetrisState TryMovePiece(TetrisState state, int rowDelta, int columnDelta, bool fireEvent)
{
if (State != GameState.Running)
{
return(state);
}
TryMovePieceResult result = BoardLogic.TryMovePiece(state, rowDelta, columnDelta);
AfterStickPiece(result.DeletedRows, result.IsGameEnd);
TetrisState newState = GetState();
if (fireEvent && (result.Moved || result.DeletedRows > 0))
{
StateChanged?.Invoke(newState);
}
return(newState);
}
