message: Not really related to this change set but take advantage of the new numeric constant
diff: @@ -607,7 +607,7 @@ void TileMap::AdjacentCost(void* state, std::vector<StateCost>* adjacent)
  for (const auto& offset : DirectionClockwise4)
  {
  Tile* adjacent_tile = getTile(tilePosition + offset, 0);
  - float cost = 0.5f;
  + float cost = constants::ROUTE_BASE_COST;
  if (!adjacent_tile || !adjacent_tile->empty() || adjacent_tile->index() == TerrainType::TERRAIN_IMPASSABLE) { cost = FLT_MAX; }
  else { cost *= static_cast<float>(adjacent_tile->index()) + 1.0f; }
  