world: fix build

src/world/unit_manager.cpp

@@ -76,7 +76,7 @@ void UnitManager::unregister_destroy_callback(UnitDestroyCallback* udc)
 void UnitManager::trigger_destroy_callbacks(UnitId id)
 {
 	ListNode* cur;
-	list_for_each(cur != &_callbacks.node)
+	list_for_each(cur, &_callbacks.node)
 	{
 		UnitDestroyCallback* udc = (UnitDestroyCallback*)container_of(cur, UnitDestroyCallback, node);
 		udc->destroy(id, udc->user_data);

src/world/world.cpp

@@ -67,7 +67,7 @@ World::~World()
 {
 	// Destroy loaded levels
 	ListNode* cur;
-	list_for_each(cur != &_levels)
+	list_for_each(cur, &_levels)
 	{
 		Level* level = (Level*)container_of(cur, Level, _node);
 		CE_DELETE(*_allocator, level);