function spawn_item(spawn_item, pos, gv,lv) 
if gv==nil then gv=db.actor:game_vertex_id() end 
if lv==nil then lv=db.actor:level_vertex_id() end 
return alife():create(spawn_item, pos, lv, gv) 
end 

function remove_item_from_inventory(remove_item,npc) 
if npc==nil then npc=db.actor end 
if remove_item~=nil then 
-- npc:mark_item_dropped(remove_item) 
alife():release(alife():object(remove_item:id()), true) 
return true 
end 
return false 
end 

