fix

git-svn-id: http://svn.net-core.org/repos/t-engine4@3920 51575b47-30f0-44d4-a5cc-537603b46e54

game/engines/default/engine/Actor.lua

@@ -150,6 +150,7 @@ end
 -- @param force if true do not check for the presence of an other entity. *Use wisely*
 -- @return true if a move was *ATTEMPTED*. This means the actor will probably want to use energy
 function _M:move(x, y, force)
+	if not x or not y then return end
 	if self.dead then return true end
 	local map = game.level.map
 

game/engines/default/engine/dialogs/ShowAchievements.lua

@@ -145,7 +145,7 @@ function _M:generateList(kind)
 				cache[img] = tex
 			end
 		end
-		if not data.notdone or a.show then
+		if data and (not data.notdone or a.show) then
 			if a.show == "full" or not data.notdone then
 				list[#list+1] = { name=a.name, color=color, desc=a.desc, when=data.when, who=data.who, order=a.order, id=id, tex=tex, a=a }
 			elseif a.show == "none" then