SYNOPSIS:
    MARKCC_CONNECTED x y z targetset [sourceset] [maxsteps]

DESCRIPTION:
    Fill the connected area starting at x,y,z. If no sourceset is
    given, or it is empty, use the class of the voxel at x/y/z.
    All voxels belonging to sourceset that are connected to x,y,z
    are remarked to targetset.
    If maxsteps is given, the flooding is stopped after this number
    of steps.

SEE ALSO:
    MARKCC_CONNECTED_VIS, MARKCC_CONNECTED2D, MARKCC_KILLSIDE
    MARKCC_CONNECTED_CUT
