new item type

/* object-related defines */
/* Item types: used by obj_data.obj_flags.type_flag */
#define ITEM_LIGHT      1		/**< Item is a light source	*/
#define ITEM_SCROLL     2		/**< Item is a scroll		*/
#define ITEM_WAND       3		/**< Item is a wand		*/
#define ITEM_STAFF      4		/**< Item is a staff		*/
#define ITEM_WEAPON     5		/**< Item is a weapon		*/
#define ITEM_FURNITURE  6   /**< Sittable Furniture		*/
#define ITEM_FREE       7   /**< Unimplemented		*/
#define ITEM_TREASURE   8   /**< Item is a treasure, not gold	*/
#define ITEM_ARMOR      9   /**< Item is armor		*/
#define ITEM_POTION    10   /**< Item is a potion		*/
#define ITEM_WORN      11		/**< Unimplemented		*/
#define ITEM_OTHER     12		/**< Misc object			*/
#define ITEM_TRASH     13		/**< Trash - shopkeepers won't buy	*/
#define ITEM_FREE2     14		/**< Unimplemented		*/
#define ITEM_CONTAINER 15		/**< Item is a container		*/
#define ITEM_NOTE      16		/**< Item is note 		*/
#define ITEM_DRINKCON  17		/**< Item is a drink container	*/
#define ITEM_KEY       18		/**< Item is a key		*/
#define ITEM_FOOD      19		/**< Item is food			*/
#define ITEM_MONEY     20		/**< Item is money (gold)		*/
#define ITEM_PEN       21		/**< Item is a pen		*/
#define ITEM_BOAT      22		/**< Item is a boat		*/
#define ITEM_FOUNTAIN  23		/**< Item is a fountain		*/
/** Total number of item types.*/
#define NUM_ITEM_TYPES    24

for (i = 0; i < NUM_ITEM_TYPES; i++)