Function hits_bars

src/mthrowu.c:1498–1559

TRUE iff thrown/kicked/rolled object doesn't pass through iron bars */

/* TRUE iff thrown/kicked/rolled object doesn't pass through iron bars */
boolean
hits_bars(
    struct obj **obj_p,   /* *obj_p will be set to NULL if object breaks */
    coordxy x, coordxy y,
    coordxy barsx, coordxy barsy,
    int always_hit,       /* caller can force a hit for items which would
                           * fit through */
    int whodidit)         /* 1==hero, 0=other, -1==just check whether it
                           * will pass through */
{
    struct obj *otmp = *obj_p;
    int obj_type = otmp->otyp;
    boolean hits = always_hit;

    if (!hits)
        switch (otmp->oclass) {
        case WEAPON_CLASS: {
            int oskill = objects[obj_type].oc_skill;

            hits = (oskill != -P_BOW && oskill != -P_CROSSBOW
                    && oskill != -P_DART && oskill != -P_SHURIKEN
                    && oskill != P_SPEAR
                    && oskill != P_KNIFE); /* but not dagger */
            break;
        }
        case ARMOR_CLASS:
            hits = (objects[obj_type].oc_armcat != ARM_GLOVES);
            break;
        case TOOL_CLASS:
            hits = (obj_type != SKELETON_KEY && obj_type != LOCK_PICK
                    && obj_type != CREDIT_CARD && obj_type != TALLOW_CANDLE
                    && obj_type != WAX_CANDLE && obj_type != LENSES
                    && obj_type != TIN_WHISTLE && obj_type != MAGIC_WHISTLE);
            break;
        case ROCK_CLASS: /* includes boulder */
            if (obj_type != STATUE || mons[otmp->corpsenm].msize > MZ_TINY)
                hits = TRUE;
            break;
        case FOOD_CLASS:
            if (obj_type == CORPSE && mons[otmp->corpsenm].msize > MZ_TINY)
                hits = TRUE;
            else
                hits = (obj_type == MEAT_STICK
                        || obj_type == ENORMOUS_MEATBALL);
            break;
        case SPBOOK_CLASS:
        case WAND_CLASS:
        case BALL_CLASS:
        case CHAIN_CLASS:
            hits = TRUE;
            break;
        default:
            break;
        }

    if (hits && whodidit != -1) {
        hit_bars(obj_p, x, y, barsx, barsy,
                 (whodidit == 1) ? BRK_BY_HERO : 0);