message: Track mouse hover with packed parameter method
diff: @@ -647,7 +647,7 @@ void MapViewState::onMouseMove(int /*x*/, int /*y*/, int /*rX*/, int /*rY*/)
  }
  }
  - mTileMapMouseHover = {mTileMap->tileMouseHoverX(), mTileMap->tileMouseHoverY()};
  + mTileMapMouseHover = mTileMap->tileMouseHover();
  }
  