private bool PlacePiece(Piece piece, int[] origin, int orientation)
{
int[,] toOccupy = piece.DetermineCellsToOccupy(origin, orientation);
List <int> occupiedRows = new List <int>();
//verify placement i.t.o board edge and existing pieces
for (int i = 0; i < toOccupy.GetLength(0); i++)
{
try {
if (boardOccupation[toOccupy[i, 0], toOccupy[i, 1]])
{
// Already occupied
return(false);
}
if (!occupiedRows.Contains(toOccupy[i, 1]))
{
occupiedRows.Add(toOccupy[i, 1]);
}
}
catch (IndexOutOfRangeException) {
// Not a valid placement
return(false);
}
}
// Keep the game up to date
game.ManuallyPlacePiece(piece, origin, orientation);
occupiedRows.Sort();
game.ClearRows(occupiedRows.ToArray(), new int[occupiedRows.Count]);
for (int i = 0; i < toOccupy.GetLength(0); i++)
{
this.boardOccupation[toOccupy[i, 0], toOccupy[i, 1]] = true;
boardFills[toOccupy[i, 0], toOccupy[i, 1]].Fill = piece.Brush;
}
//Clear the board as necessary, not optimized.
List <int> rowsToOccupy = new List <int>();
for (int i = 0; i < toOccupy.GetLength(0); i++)
{
if (!rowsToOccupy.Contains(toOccupy[i, 1]))
{
rowsToOccupy.Add(toOccupy[i, 1]);
}
}
/*
* The logic is pretty simple, we don't care about efficiency, so start at the bottom row, if it's full, remove it and bring down all the rows above.
* Repeat for that row, once done, test the row up, until every row is tested.
*/
for (int i = this.height - 1; i >= 0; i--)
{
bool rowFull = true;
for (int j = 0; j < this.width; j++)
{
if (!this.boardOccupation[j, i])
{
rowFull = false;
break;
}
}
if (rowFull)
{
for (int j = i - 1; j >= 0; j--) // Start at the row above to send it down
{
for (int x = 0; x < width; x++) // Move horizontally along the board
{
boardFills[x, j + 1].Fill = boardFills[x, j].Fill;
//Grid.SetColumn(boardFills[x, j + 1], j + 1);
this.boardOccupation[x, j + 1] = this.boardOccupation[x, j]; // set the board occupation for later verification.
}
}
i++;
for (int x = 0; x < width; x++)
{
boardFills[x, 0].Fill = transparentBrush;
this.boardOccupation[x, 0] = false;
}
}
}
// Verify the two different calculations match
if (!this.boardOccupation.ToString().Equals(this.game.Board.ToString()))
{
Console.WriteLine(this.boardOccupation.ToString());
Console.WriteLine(this.game.Board.ToString());
throw new Exception("TetrisGame and Tetris boards do not match");
}
display_score.Text = this.game.Score.ToString();
return(true);
}