Function CheckforTownRating

src/town_cmd.cpp:4077–4105

* Does the town authority allow the (destructive) action of the current company? * @param flags Checking flags of the command. * @param t Town that must allow the company action. * @param type Type of action that is wanted. * @return A succeeded command if the action is allowed, a failed command if it is not allowed. */

 * @return A succeeded command if the action is allowed, a failed command if it is not allowed.
 */
CommandCost CheckforTownRating(DoCommandFlags flags, Town *t, TownRatingCheckType type)
{
	/* if magic_bulldozer cheat is active, town doesn't restrict your destructive actions */
	if (t == nullptr || !Company::IsValidID(_current_company) ||
			_cheats.magic_bulldozer.value || flags.Test(DoCommandFlag::NoTestTownRating)) {
		return CommandCost();
	}

	/* minimum rating needed to be allowed to remove stuff */
	static const int needed_rating[][to_underlying(TownRatingCheckType::End)] = {
		/*                   RoadRemove,                     TunnelBridgeRemove */
		{    RATING_ROAD_NEEDED_LENIENT,    RATING_TUNNEL_BRIDGE_NEEDED_LENIENT}, // Lenient
		{    RATING_ROAD_NEEDED_NEUTRAL,    RATING_TUNNEL_BRIDGE_NEEDED_NEUTRAL}, // Neutral
		{    RATING_ROAD_NEEDED_HOSTILE,    RATING_TUNNEL_BRIDGE_NEEDED_HOSTILE}, // Hostile
		{ RATING_ROAD_NEEDED_PERMISSIVE, RATING_TUNNEL_BRIDGE_NEEDED_PERMISSIVE}, // Permissive
	};

	/* check if you're allowed to remove the road/bridge/tunnel
	 * owned by a town no removal if rating is lower than ... depends now on
	 * difficulty setting. Minimum town rating selected by difficulty level
	 */
	int needed = needed_rating[_settings_game.difficulty.town_council_tolerance][to_underlying(type)];

	if (GetRating(t) < needed) {
		return CommandCostWithParam(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS, t->index);
	}

	return CommandCost();
}

template <>
Town::SuppliedHistory SumHistory(std::span<const Town::SuppliedHistory> history)