beam.damage   = dice_def( 3, 2 + power / 25 );

        beam.damage   = dice_def(1,0);

        // FIXME: Players don't get the poison effect, only monsters
        // do. This should be changed (probably by changing monsters).
        beam.flavour  = BEAM_POISON;

        // Well, it works, even if the name isn't quite intuitive.
        beam.flavour  = BEAM_POTION_STINKING_CLOUD;

        beam.is_beam  = true;

        beam.ench_power = power; // probably meaningless
        beam.is_explosion = true;

        || name == "great blast of cold"
        || name == "ball of vapour")

        || name == "great blast of cold")

        const cloud_type cl_type = (flavour == BEAM_MIASMA) ? CLOUD_MIASMA
                                                            : CLOUD_STINK;
        big_cloud(cl_type, whose_kill(), killer(), pos(), 0, 9);

        // death drake; swamp drakes handled earlier
        ASSERT(flavour == BEAM_MIASMA);
        big_cloud(CLOUD_MIASMA, whose_kill(), killer(), pos(), 0, 9);

    if (is_explosion
        || is_big_cloud
        || aimed_at_spot
        || name == "blast of poison"
        || name == "foul vapour"
        || name == "ball of vapour")
    {
        return (true);
    }
    return (false);

    return (is_explosion || is_big_cloud || aimed_at_spot);

    if (name == "ball of vapour")

    if (name == "foul vapour")