Add: Add settings for building new types of depots.

src/lang/english.txt

@@ -1622,6 +1622,19 @@ STR_CONFIG_SETTING_DISTANT_JOIN_DEPOTS                          :Allow to join d
 STR_CONFIG_SETTING_DISTANT_JOIN_DEPOTS_HELPTEXT                 :Allow adding parts to a depot without directly touching the existing parts. Needs Ctrl+Click while placing the new parts
 STR_CONFIG_SETTING_DEPOT_SPREAD                                 :Maximum depot spread: {STRING2}
 STR_CONFIG_SETTING_DEPOT_SPREAD_HELPTEXT                        :Maximum area the parts of a single depot may be spread out on.
+
+STR_CONFIG_SETTING_RAIL_DEPOT_TYPES                             :Rail depot types: {STRING2}
+STR_CONFIG_SETTING_RAIL_DEPOT_TYPES_HELPTEXT                    :Available rail depot types for construction for human players.
+STR_CONFIG_SETTING_ROAD_DEPOT_TYPES                             :Road depot types: {STRING2}
+STR_CONFIG_SETTING_ROAD_DEPOT_TYPES_HELPTEXT                    :Available road depot types for construction for human players.
+STR_CONFIG_SETTING_WATER_DEPOT_TYPES                            :Water depot types: {STRING2}
+STR_CONFIG_SETTING_WATER_DEPOT_TYPES_HELPTEXT                   :Available water depot types for construction for human players.
+###length 3
+STR_CONFIG_SETTING_ONLY_STANDARD_DEPOT                          :Standard depots
+STR_CONFIG_SETTING_ONLY_EXTENDED_DEPOT                          :Extended depots
+STR_CONFIG_SETTING_BOTH_DEPOT_TYPES                             :Both depot types
+###next-name-looks-similar
+
 STR_CONFIG_SETTING_REPLACE_INCOMPATIBLE_RAIL                    :Allow replacing rail vehicles with incompatible rail types: {STRING2}
 STR_CONFIG_SETTING_REPLACE_INCOMPATIBLE_RAIL_HELPTEXT           :Allow replacing rail vehicles even if they are not compatible by rail type.
 STR_CONFIG_SETTING_REPLACE_INCOMPATIBLE_ROAD                    :Allow replacing road vehicles with incompatible road types: {STRING2}
@@ -5134,6 +5147,8 @@ STR_ERROR_CAN_T_BUILD_TRAM_DEPOT                                :{WHITE}Can't bu
 STR_ERROR_CAN_T_BUILD_SHIP_DEPOT                                :{WHITE}Can't build ship depot here...
 
 STR_ERROR_ADJOINS_MORE_THAN_ONE_EXISTING_DEPOT                  :{WHITE}... adjoins more than one existing depot
+STR_ERROR_DEPOT_TYPE_NOT_AVAILABLE                              :{WHITE}... depot type not available
+
 STR_ERROR_CAN_T_RENAME_DEPOT                                    :{WHITE}Can't rename depot...
 
 STR_ERROR_TRAIN_MUST_BE_STOPPED_INSIDE_DEPOT                    :{WHITE}... must be stopped inside a depot

src/saveload/afterload.cpp

@@ -821,6 +821,13 @@ bool AfterLoadGame()
 		_settings_game.depot.allow_no_comp_roadtype_replacements = false;
 	}
 
+	if (IsSavegameVersionBefore(SLV_EXTENDED_DEPOTS)) {
+		/* Set standard depots as the only available depots. */
+		_settings_game.depot.rail_depot_types = 1;
+		_settings_game.depot.road_depot_types = 1;
+		_settings_game.depot.water_depot_types = 1;
+	}
+
 	/* Load the sprites */
 	GfxLoadSprites();
 	LoadStringWidthTable();

src/saveload/saveload.h

@@ -397,6 +397,8 @@ enum SaveLoadVersion : uint16_t {
 
 	SLV_KEEP_REMOVED_DEPOTS,                ///< 320  PR#XXXXX Keep remove depots for a while.
 
+	SLV_EXTENDED_DEPOTS,                    ///< 321  PR#8480 Extended depots for rail, road and water transport.
+
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };
 

src/settings_gui.cpp

@@ -2150,6 +2150,10 @@ static SettingsContainer &GetSettingsTree()
 				depots->Add(new SettingEntry("depot.depot_spread"));
 				depots->Add(new SettingEntry("depot.distant_join_depots"));
 
+				depots->Add(new SettingEntry("depot.rail_depot_types"));
+				depots->Add(new SettingEntry("depot.road_depot_types"));
+				depots->Add(new SettingEntry("depot.water_depot_types"));
+
 				depots->Add(new SettingEntry("depot.allow_no_comp_railtype_replacements"));
 				depots->Add(new SettingEntry("depot.allow_no_comp_roadtype_replacements"));
 			}

src/settings_table.cpp

@@ -396,6 +396,11 @@ static void InvalidateReplacementWindows(int32_t)
 	InvalidateWindowClassesData(WC_REPLACE_VEHICLE);
 }
 
+static void DepotSettingsChanged(int32_t)
+{
+	CloseWindowByClass(WC_BUILD_TOOLBAR);
+}
+
 /**
  * Update any possible saveload window and delete any newgrf dialogue as
  * its widget parts might change. Reinit all windows as it allows access to the

src/settings_type.h

@@ -570,12 +570,22 @@ struct StationSettings {
 	uint8_t station_spread;                  ///< amount a station may spread
 };
 
+enum DepotTypes : uint8_t {
+	ONLY_STANDARD_DEPOT_TYPE = 1,
+	ONLY_EXTENDED_DEPOT_TYPE = 2,
+	BOTH_DEPOT_TYPES         = 3,
+};
+
 /** Settings related to depots. */
 struct DepotSettings {
 	uint8_t depot_spread;            ///< amount a depot may spread
 	bool    adjacent_depots;         ///< allow depots to be built directly adjacent to other depots
 	bool    distant_join_depots;     ///< allow to join non-adjacent depots
 
+	uint8_t rail_depot_types;        ///< allowed rail depot types for contruction
+	uint8_t road_depot_types;        ///< allowed road depot types for contruction
+	uint8_t water_depot_types;       ///< allowed water depot types for contruction
+
 	bool    allow_no_comp_railtype_replacements;  ///< allow replacing rail vehicles even if rail type is not compatible
 	bool    allow_no_comp_roadtype_replacements;  ///< allow replacing road vehicles even if road type is not compatible
 };

src/table/settings/game_settings.ini

@@ -23,6 +23,7 @@ static void StationCatchmentChanged(int32_t new_value);
 static void MaxVehiclesChanged(int32_t new_value);
 static bool CheckDifferentRailRoadTypesReplacements(int32_t &new_value);
 static void InvalidateReplacementWindows(int32_t new_value);
+static void DepotSettingsChanged(int32_t new_value);
 
 static const SettingVariant _game_settings_table[] = {
 [post-amble]
@@ -147,6 +148,51 @@ str      = STR_CONFIG_SETTING_DISTANT_JOIN_STATIONS
 strhelp  = STR_CONFIG_SETTING_DISTANT_JOIN_STATIONS_HELPTEXT
 post_cb  = [](auto) { CloseWindowById(WC_SELECT_STATION, 0); }
 
+[SDT_VAR]
+var      = depot.rail_depot_types
+type     = SLE_UINT8
+from     = SLV_EXTENDED_DEPOTS
+flags    = SF_GUI_DROPDOWN
+def      = 1
+min      = 1
+max      = 3
+interval = 1
+str      = STR_CONFIG_SETTING_RAIL_DEPOT_TYPES
+strhelp  = STR_CONFIG_SETTING_RAIL_DEPOT_TYPES_HELPTEXT
+strval   = STR_CONFIG_SETTING_ONLY_STANDARD_DEPOT
+post_cb  = DepotSettingsChanged
+cat      = SC_EXPERT
+
+[SDT_VAR]
+var      = depot.road_depot_types
+type     = SLE_UINT8
+from     = SLV_EXTENDED_DEPOTS
+flags    = SF_GUI_DROPDOWN
+def      = 1
+min      = 1
+max      = 3
+interval = 1
+str      = STR_CONFIG_SETTING_ROAD_DEPOT_TYPES
+strhelp  = STR_CONFIG_SETTING_ROAD_DEPOT_TYPES_HELPTEXT
+strval   = STR_CONFIG_SETTING_ONLY_STANDARD_DEPOT
+post_cb  = DepotSettingsChanged
+cat      = SC_EXPERT
+
+[SDT_VAR]
+var      = depot.water_depot_types
+type     = SLE_UINT8
+from     = SLV_EXTENDED_DEPOTS
+flags    = SF_GUI_DROPDOWN
+def      = 1
+min      = 1
+max      = 3
+interval = 1
+str      = STR_CONFIG_SETTING_WATER_DEPOT_TYPES
+strhelp  = STR_CONFIG_SETTING_WATER_DEPOT_TYPES_HELPTEXT
+strval   = STR_CONFIG_SETTING_ONLY_STANDARD_DEPOT
+post_cb  = DepotSettingsChanged
+cat      = SC_EXPERT
+
 [SDT_BOOL]
 var      = depot.adjacent_depots
 from     = SLV_DEPOT_SPREAD