Method undo

Engine/source/forest/editor/forestUndo.cpp:86–95

}

void ForestCreateUndoAction::undo()
{
   for ( S32 i = mItems.size()-1; i >= 0; i-- )
   {
      const ForestItem &item = mItems[i];
      mData->removeItem( item.getKey(), item.getPosition() );
   }

   mEditor->onUndoAction();
}