// FIXME: looks like the lack of a check on 'submerged' here is the
            // reason monsters can attack submerged monsters they happen to
            // walk into -cao

            // FIXME: looks like the lack of a check on 'submerged' here
            // is the reason monsters can attack submerged monsters they
            // happen to walk into. -cao

                // There was nowhere the monster could move to, so it did
                // nothing.

            {
                // There was nowhere the monster could move to, so it
                // did nothing.

            }

    // If the player can ever walk through walls, this will
    // need special-casing too.

    // If the player can ever walk through walls, this will need
    // special-casing too.

    // We don't want to hit a monster in a wall square twice.
    // Also stop single target beams from affecting a monster if they already

    // We don't want to hit a monster in a wall square twice.  Also,
    // stop single target beams from affecting a monster if they already