plop

git-svn-id: http://svn.net-core.org/repos/t-engine4@2407 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/class/Store.lua

@@ -41,7 +41,7 @@ function _M:init(t, no_default)
 
 	if not self.store.actor_filter then
 		self.store.actor_filter = function(o)
-			return (o.type == "gem" or o.unique) and not o.quest and not o.lore
+			return (o.type == "gem" or o.unique) and not o.quest and not o.lore and o.cost and o.cost > 0
 		end
 	end
 end