shop_draw cached

// Shop draw function for each shelf slot, replaces GetItem_Draw inside of EnGirlA_Draw
void shop_draw(z64_actor_t *actor, z64_game_t *game) {
    EnGirlA *this = (EnGirlA *)actor;
    model_t model = {
        .object_id = 0x0000,
        .graphic_id = 0x00,
    };

    //See if there is cached data stored in the actor's isInitialized variable at 0x018C.
    //Cached data is as follows:
    //2 bytes: model object_id
    //1 byte: model graphic_id
    uint16_t object_id = (((uint8_t*)this)[0x018D] << 1) & ((uint8_t*)this)[0x018E];
    uint8_t graphic_id = ((uint8_t*)this)[0x18F];

    /*
        SOLD OUT is given a get item ID of 0x53 for the slot,
        which conflicts with the Gerudo Mask override if it's
        shuffled and the override in the Gerudo Mask slot happens
        to be progressive. To prevent the mask shop from filling up
        with longshots or golden gauntlets, check the currently loaded
        object ID for OBJECT_GI_SOLDOUT (0x148) before attempting to use
        the override model.
    */
    // There is already cached model data, use it instead of doing lookups
    if (object_id > 0 && graphic_id > 0 && graphic_id != 0xFF && game->obj_ctxt.objects[this->objBankIndex].id != 0x148) {
        model.object_id = object_id;
        model.graphic_id = graphic_id;
        draw_model(model, actor, game, 0.0);
        return;
    }

    // There is no cached data, check if there needs to be
    if (this->getItemId && game->obj_ctxt.objects[this->objBankIndex].id != 0x148) {
        // If the item isn't overridden then we don't want to do an unnecessary lookup, so we store -1 in graphic_id
        if (graphic_id != -1) {
            // Look up the override so we can either cache its model data, or cache that it doesn't exist
            override_t override = lookup_override((z64_actor_t*) this, z64_game.scene_index, this->getItemId);
            if (override.key.all) { // Override exists, cache the model data and load
                lookup_model_by_override(&model, override);
                if (model.object_id != 0x0000) {
                    // Cache object_id and graphic_id
                    ((uint8_t*)this)[0x18D] = (model.object_id >> 1);
                    ((uint8_t*)this)[0x18E] = (model.object_id & 0xFF);
                    ((uint8_t*)this)[0x18F] = model.graphic_id;
                    draw_model(model, actor, game, 0.0);
                }
                return;
            }
            else { // Override does not exist
                ((uint8_t*)this)[0x18D] = 0;
                ((uint8_t*)this)[0x18E] = 0;
                ((uint8_t*)this)[0x18F] = 0xFF;
            }
        }
    }

    // vanilla draw function if the slot is a regular shop item, shuffled or unshuffled
    GetItem_Draw(game, this->giDrawId);
}