private bool IsAdjacencyBlocked(uint x, uint y, uint width, uint height, Direction?direction)
{
/** Precondition: IsHittingEdge was already called to this point */
switch (direction)
{
case Direction.LEFT:
return(blockMask.GetColumn(x - 1, y, y + height - 1, Bitmask.CheckType.ANY_BLOCKED));
case Direction.UP:
return(blockMask.GetRow(x, x + width - 1, y - 1, Bitmask.CheckType.ANY_BLOCKED));
case Direction.RIGHT:
return(blockMask.GetColumn(x + width, y, y + height - 1, Bitmask.CheckType.ANY_BLOCKED));
case Direction.DOWN:
return(blockMask.GetRow(x, x + width - 1, y + height, Bitmask.CheckType.ANY_BLOCKED));
default:
return(true);
}
}
