Improve clicking on walking creatures

modules/game_interface/gameinterface.lua

@@ -394,8 +394,8 @@ function processMouseAction(menuPosition, mouseButton, autoWalkPos, lookThing, u
   else
     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)
+      if creatureThing ~= player then
+        g_game.attack(creatureThing)
         return true
       elseif multiUseThing:isContainer() then
         if multiUseThing:getParentContainer() then

src/otclient/game.cpp

@@ -769,7 +769,7 @@ void Game::attack(const CreaturePtr& creature)
     if(!canPerformGameAction() || creature == m_localPlayer)
         return;
 
-    if(creature == m_attackingCreature) {
+    if(creature && creature == m_attackingCreature) {
         cancelAttack();
         return;
     }