Add: new town council "indifferent" attitude

Closes: #184

src/lang/english.txt

@@ -1123,6 +1123,7 @@ STR_TERRAIN_TYPE_HILLY                                          :Hilly
 STR_TERRAIN_TYPE_MOUNTAINOUS                                    :Mountainous
 STR_TERRAIN_TYPE_ALPINIST                                       :Alpinist
 
+STR_CITY_APPROVAL_INDIFFERENT                                   :Indifferent
 STR_CITY_APPROVAL_PERMISSIVE                                    :Permissive
 STR_CITY_APPROVAL_TOLERANT                                      :Tolerant
 STR_CITY_APPROVAL_HOSTILE                                       :Hostile

src/lang/korean.txt

@@ -1123,6 +1123,7 @@ STR_TERRAIN_TYPE_HILLY                                          :언덕
 STR_TERRAIN_TYPE_MOUNTAINOUS                                    :산
 STR_TERRAIN_TYPE_ALPINIST                                       :매우 험한 산지
 
+STR_CITY_APPROVAL_INDIFFERENT                                   :무관심
 STR_CITY_APPROVAL_PERMISSIVE                                    :신경 안씀
 STR_CITY_APPROVAL_TOLERANT                                      :신경 씀
 STR_CITY_APPROVAL_HOSTILE                                       :싫어함

src/station_cmd.cpp

@@ -2304,6 +2304,8 @@ uint8 GetAirportNoiseLevelForDistance(const AirportSpec *as, uint distance)
 	 * So no need to go any further*/
 	if (as->noise_level < 2) return as->noise_level;
 
+	if (_settings_game.difficulty.town_council_tolerance == TOWN_COUNCIL_INDIFFERENT) return 1;
+
 	/* The steps for measuring noise reduction are based on the "magical" (and arbitrary) 8 base distance
 	 * adding the town_council_tolerance 4 times, as a way to graduate, depending of the tolerance.
 	 * Basically, it says that the less tolerant a town is, the bigger the distance before

src/table/settings.ini

@@ -106,6 +106,13 @@ static const SettingDescEnumEntry _linkgraph_mode_per_cargo[] = {
 { DT_ASYMMETRIC_NEAR, STR_CONFIG_SETTING_DISTRIBUTION_ASYMMETRIC_NEAREST },
 { 0, STR_NULL }
 };
+static const SettingDescEnumEntry _town_council_approval[] = {
+{ 255, STR_CITY_APPROVAL_INDIFFERENT },
+{ 0, STR_CITY_APPROVAL_PERMISSIVE },
+{ 1, STR_CITY_APPROVAL_TOLERANT },
+{ 2, STR_CITY_APPROVAL_HOSTILE },
+{ 0, STR_NULL }
+};
 
 static const SettingDescEnumEntry _train_braking_model[] = {
 { TBM_ORIGINAL, STR_CONFIG_SETTING_ORIGINAL },
@@ -375,19 +382,15 @@ str      = STR_CONFIG_SETTING_DISASTERS
 strhelp  = STR_CONFIG_SETTING_DISASTERS_HELPTEXT
 cat      = SC_BASIC
 
-[SDT_VAR]
+[SDT_ENUM]
 base     = GameSettings
 var      = difficulty.town_council_tolerance
 type     = SLE_UINT8
 from     = SLV_97
-guiflags = SGF_MULTISTRING
 def      = 0
-min      = 0
-max      = 2
-interval = 1
+enumlist = _town_council_approval
 str      = STR_CONFIG_SETTING_CITY_APPROVAL
 strhelp  = STR_CONFIG_SETTING_CITY_APPROVAL_HELPTEXT
-strval   = STR_CITY_APPROVAL_PERMISSIVE
 proc     = DifficultyNoiseChange
 
 [SDT_BOOL]

src/town.h

@@ -38,6 +38,8 @@ static const uint TOWN_GROWTH_DESERT = 0xFFFFFFFF; ///< The town needs the cargo
 static const uint16 TOWN_GROWTH_RATE_NONE = 0xFFFF; ///< Special value for Town::growth_rate to disable town growth.
 static const uint16 MAX_TOWN_GROWTH_TICKS = 930; ///< Max amount of original town ticks that still fit into uint16, about equal to UINT16_MAX / TOWN_GROWTH_TICKS but slightly less to simplify calculations
 
+static const byte TOWN_COUNCIL_INDIFFERENT = 0xFF;
+
 typedef Pool<Town, TownID, 64, 64000> TownPool;
 extern TownPool _town_pool;
 
@@ -148,7 +150,7 @@ struct Town : TownPool::PoolItem<&_town_pool> {
 	 */
 	inline uint16 MaxTownNoise() const
 	{
-		if (this->cache.population == 0) return 0; // no population? no noise
+		if (this->cache.population == 0 || _settings_game.difficulty.town_council_tolerance == TOWN_COUNCIL_INDIFFERENT) return 0; // no population? no noise
 
 		/* 3 is added (the noise of the lowest airport), so the  user can at least build a small airfield. */
 		return (this->cache.population / _settings_game.economy.town_noise_population[_settings_game.difficulty.town_council_tolerance]) + 3;

src/town_cmd.cpp

@@ -809,7 +809,10 @@ static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
 	Town *t = Town::GetByTile(tile);
 
 	if (Company::IsValidID(_current_company)) {
-		if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
+		if (rating > t->ratings[_current_company]
+			&& !(flags & DC_NO_TEST_TOWN_RATING)
+			&& !_cheats.magic_bulldozer.value
+			&& _settings_game.difficulty.town_council_tolerance != TOWN_COUNCIL_INDIFFERENT) {
 			SetDParam(0, t->index);
 			return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
 		}
@@ -3886,7 +3889,7 @@ CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags
 	Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
 	if (t == nullptr) return CommandCost();
 
-	if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
+	if (t->ratings[_current_company] > RATING_VERYPOOR || _settings_game.difficulty.town_council_tolerance == TOWN_COUNCIL_INDIFFERENT) return CommandCost();
 
 	SetDParam(0, t->index);
 	return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
@@ -4047,6 +4050,10 @@ CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType
 		return CommandCost();
 	}
 
+	if (_settings_game.difficulty.town_council_tolerance == TOWN_COUNCIL_INDIFFERENT) {
+		return CommandCost();
+	}
+
 	/* minimum rating needed to be allowed to remove stuff */
 	static const int needed_rating[][TOWN_RATING_CHECK_TYPE_COUNT] = {
 		/*                  ROAD_REMOVE,                    TUNNELBRIDGE_REMOVE */