Function doengrave_sfx_item

src/engrave.c:741–892

special engraving effects for all objects */

/* special engraving effects for all objects */
staticfn boolean
doengrave_sfx_item(struct _doengrave_ctx *de)
{
    switch (de->otmp->oclass) {
    default:
    case AMULET_CLASS:
    case CHAIN_CLASS:
    case POTION_CLASS:
    case COIN_CLASS:
        break;
    case RING_CLASS:
        /* "diamond" rings and others should work */
    case GEM_CLASS:
        /* diamonds & other hard gems should work */
        if (objects[de->otmp->otyp].oc_tough) {
            de->type = ENGRAVE;
            break;
        }
        break;
    case ARMOR_CLASS:
        if (is_boots(de->otmp)) {
            de->type = DUST;
            break;
        }
        FALLTHROUGH;
        /*FALLTHRU*/
    /* Objects too large to engrave with */
    case BALL_CLASS:
    case ROCK_CLASS:
        You_cant("engrave with such a large object!");
        de->ptext = FALSE;
        break;
    /* Objects too silly to engrave with */
    case FOOD_CLASS:
    case SCROLL_CLASS:
    case SPBOOK_CLASS:
        pline("%s would get %s.", Yname2(de->otmp),
              de->frosted ? "all frosty" : "too dirty");
        de->ptext = FALSE;
        break;
    case RANDOM_CLASS: /* This should mean fingers */
        break;

    /* The charge is removed from the wand before prompting for
     * the engraving text, because all kinds of setup decisions
     * and pre-engraving messages are based upon knowing what type
     * of engraving the wand is going to do.  Also, the player
     * will have potentially seen "You wrest .." message, and
     * therefore will know they are using a charge.
     */
    case WAND_CLASS:
        if (zappable(de->otmp)) {
            check_unpaid(de->otmp);
            if (de->otmp->cursed && !rn2(WAND_BACKFIRE_CHANCE)) {
                wand_explode(de->otmp, 0);
                de->ret = ECMD_TIME;
                return FALSE;
            }