UNDEF_TYP
{UNDEF_TYP, 0, POTION_SYM, 2, 0},
{UNDEF_TYP, 0, FOOD_SYM, 10, 1},
{UNDEF_TYP, UNDEF_SPE, WAND_SYM, 2, 0},
{UNDEF_TYP, UNDEF_SPE, RING_SYM, 2, 0},
{UNDEF_TYP, UNDEF_SPE, POTION_SYM, 2, 0},
{UNDEF_TYP, UNDEF_SPE, SCROLL_SYM, 3, 0},
if (trop->trotyp != UNDEF_TYP)