public bool IsObstructed(TetrisPiece piece, ObstructionDirection direction)
{
bool isObstructed = false;
int yCheck = 0;
int xCheck = 0;
switch (direction)
{
case ObstructionDirection.DOWN:
{
yCheck = 1;
xCheck = 0;
}
break;
case ObstructionDirection.LEFT:
{
yCheck = 0;
xCheck = -1;
}
break;
case ObstructionDirection.RIGHT:
{
yCheck = 0;
xCheck = 1;
}
break;
}
for (int itRow = piece.size.row - 1; itRow >= 0; itRow--)
{
for (int itCol = 0; itCol < piece.size.col; itCol++)
{
// check block is filled
if (piece.Get(itRow, itCol) == 1)
{
int rowPos = (piece.position.row + itRow) + yCheck;
int colPos = (piece.position.col + itCol) + xCheck;
if (rowPos >= 0 && rowPos < this.row &&
colPos >= 0 && colPos < this.col)
{
if (boardData[rowPos, colPos] == 1)
{
return(true);
}
}
else
{
// hit bottom
return(true);
}
}
}
}
return(isObstructed);
}
public void AttachPiece(TetrisPiece piece)
{
if (IsInside(piece))
{
for (int itRow = 0; itRow < piece.size.row; itRow++)
{
for (int itCol = 0; itCol < piece.size.col; itCol++)
{
if (piece.Get(itRow, itCol) == 1)
{
boardData[piece.position.row + itRow, piece.position.col + itCol] = piece.Get(itRow, itCol);
tetrisCells[piece.position.row + itRow, piece.position.col + itCol] = piece.GetCell(itRow, itCol);
}
}
}
}
}
public bool IsInside(TetrisPiece piece)
{
for (int itRow = 0; itRow < piece.size.row; itRow++)
{
for (int itCol = 0; itCol < piece.size.col; itCol++)
{
if (piece.Get(itRow, itCol) == 1)
{
if (piece.position.row + itRow >= 0 && piece.position.row + itRow < row &&
piece.position.col + itCol >= 0 && piece.position.col < col)
{
}
else
{
return(false);
}
}
}
}
return(true);
}