message: Use reference syntax for Tile in landingSiteSuitable
diff: @@ -200,19 +200,19 @@ bool landingSiteSuitable(TileMap* tilemap, NAS2D::Point<int> position)
  {
  for (const auto offset : DirectionScan3x3)
  {
  - Tile* tile = tilemap->getTile(position + offset);
  + auto& tile = *tilemap->getTile(position + offset);
  - if (tile->index() == TerrainType::TERRAIN_IMPASSABLE)
  + if (tile.index() == TerrainType::TERRAIN_IMPASSABLE)
  {
  doAlertMessage(constants::ALERT_LANDER_LOCATION, constants::ALERT_SEED_TERRAIN);
  return false;
  }
  - else if (tile->mine())
  + else if (tile.mine())
  {
  doAlertMessage(constants::ALERT_LANDER_LOCATION, constants::ALERT_SEED_MINE);
  return false;
  }
  - else if (tile->thing())
  + else if (tile.thing())
  {
  // This is a case that should never happen. If it does, blow up loudly.
  throw std::runtime_error("Tile obstructed by a Thing other than a Mine.");
  