// NOTE - This function does NOT check for out of bounds when advancing the indexes.
private void advanceToNextSlotInGivenDirection(ref int io_Row, ref int io_Col,
eBoardScanningDirections i_Direction)
{
switch (i_Direction)
{
case eBoardScanningDirections.Up:
io_Row--;
break;
case eBoardScanningDirections.TopRight:
io_Row--;
io_Col++;
break;
case eBoardScanningDirections.BottomLeft:
io_Row++;
io_Col--;
break;
case eBoardScanningDirections.BottomRight:
io_Row++;
io_Col++;
break;
case eBoardScanningDirections.Down:
io_Row++;
break;
case eBoardScanningDirections.Left:
io_Col--;
break;
case eBoardScanningDirections.Right:
io_Col++;
break;
case eBoardScanningDirections.TopLeft:
io_Row--;
io_Col--;
break;
}
}
// This function will scan the board, STARTING from the given slot(i_Row, i_Col), and TOWARDS the given direction.
// It will return how many EQUAL SLOTS (to the starting slot) there are in that direction - NOT including the original slot.
private int SequenceSizeFromSlotToDirection(int i_Row, int i_Col, eBoardScanningDirections i_ScanningDirection)
{
const bool v_insideSequence = true;
bool isInsideSequence = v_insideSequence;
int sequenceSize = 0;
int nextRow = i_Row, nextCol = i_Col;
advanceToNextSlotInGivenDirection(ref nextRow, ref nextCol, i_ScanningDirection);
while (IsSlotIndexWithinBounds(nextRow, nextCol) && isInsideSequence)
{
if (m_GameBoard[i_Row - 1, i_Col - 1] == m_GameBoard[nextRow - 1, nextCol - 1])
{
sequenceSize++;
advanceToNextSlotInGivenDirection(ref nextRow, ref nextCol, i_ScanningDirection);
}
else
{
isInsideSequence = !v_insideSequence;
}
}
return(sequenceSize);
}
