fix

git-svn-id: http://svn.net-core.org/repos/t-engine4@6183 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/class/Actor.lua

@@ -4139,6 +4139,7 @@ function _M:canSeeNoCache(actor, def, def_pct)
 	-- ESP, see all, or only types/subtypes
 	if self.esp then
 		local esp = self.esp
+		local t, st = rawget(actor, "type") or "???", rawget(actor, "subtype") or "???"
 		-- Type based ESP
 		if esp[actor.type] and esp[actor.type] > 0 then
 			return true, 100