Function water_damage_chain

src/trap.c:4854–4888

}

void
water_damage_chain(
    struct obj *obj,
    boolean here)
{
    struct obj *otmp;
    coordxy x, y;
    coord save_bhitpos;

    if (!obj)
        return;

    /* initialize acid context: so far, neither seen (dknown) potions of
       acid nor unseen have exploded during this water damage sequence */
    ga.acid_ctx.dkn_boom = ga.acid_ctx.unk_boom = 0;
    ga.acid_ctx.ctx_valid = TRUE;
    /* we don't want to permanently overwrite bhitpos below, since we can get
       here from scenarios where it was in use up the call stack (e.g. thrown
       item hurtling the levitating hero into a wall of water) */
    save_bhitpos = gb.bhitpos;
    /* erode_obj() relies on bhitpos if target objects aren't carried by
       the hero or a monster, to check visibility controlling feedback */
    if (get_obj_location(obj, &x, &y, CONTAINED_TOO))
        gb.bhitpos.x = x, gb.bhitpos.y = y;

    for (; obj; obj = otmp) {
        otmp = here ? obj->nexthere : obj->nobj;
        water_damage(obj, (char *) 0, FALSE);
    }

    /* reset acid context and bhitpos */
    ga.acid_ctx.dkn_boom = ga.acid_ctx.unk_boom = 0;
    ga.acid_ctx.ctx_valid = FALSE;
    gb.bhitpos = save_bhitpos;
}

/*
 * This function is potentially expensive - rolling