Fix some bugs

modules/game_interface/gameinterface.lua

@@ -395,7 +395,7 @@ function processMouseAction(menuPosition, mouseButton, autoWalkPos, lookThing, u
     if multiUseThing and keyboardModifiers == KeyboardNoModifier and mouseButton == MouseRightButton and not g_mouse.isPressed(MouseLeftButton) then
       local player = g_game.getLocalPlayer()
       if multiUseThing:isCreature() and multiUseThing:isCreature() ~= player then
-        g_game.attack(multiUseThing:isCreature())
+        g_game.attack(multiUseThing)
         return true
       elseif multiUseThing:isContainer() then
         if multiUseThing:getParentContainer() then

modules/game_interface/widgets/uiitem.lua

@@ -24,12 +24,15 @@ function UIItem:onDrop(widget, mousePos)
   if not widget or not widget.currentDragThing then return false end
 
   local item = widget.currentDragThing
+  if not item:isItem() then return false end
+
   local toPos = self.position
 
   local itemPos = item:getPosition()
   if itemPos.x == toPos.x and itemPos.y == toPos.y and itemPos.z == toPos.z then return false end
 
   if item:getCount() > 1 then
+	g_game.look(item)
     modules.game_interface.moveStackableItem(item, toPos)
   else
     g_game.move(item, toPos, 1)