Add Districts to TownBlocks and Towns.

Towny/src/main/java/com/palmergames/bukkit/config/ConfigNodes.java

@@ -2020,6 +2020,7 @@ public enum ConfigNodes {
 	NOTIFICATION_PLOT_NOTFORSALE("notification.plot.notforsale", "&e[Not For Sale]"),
 	NOTIFICATION_PLOT_TYPE("notification.plot.type", "&6[%s]"),
 	NOTIFICATION_GROUP("notification.group", "&f[%s]"),
+	NOTIFICATION_DISTRICT("notification.district", "&2[%s]"),
 	NOTIFICATION_TOWN_NAMES_ARE_VERBOSE(
 			"notification.town_names_are_verbose",
 			"true",

Towny/src/main/java/com/palmergames/bukkit/towny/ChunkNotification.java

@@ -14,6 +14,7 @@
 import com.palmergames.bukkit.towny.object.TownBlockType;
 import com.palmergames.bukkit.towny.object.TownyWorld;
 import com.palmergames.bukkit.towny.object.WorldCoord;
+import com.palmergames.bukkit.towny.object.District;
 import com.palmergames.bukkit.towny.object.PlayerCache.TownBlockStatus;
 import com.palmergames.bukkit.towny.utils.CombatUtil;
 import com.palmergames.bukkit.towny.utils.PlayerCacheUtil;
@@ -41,6 +42,7 @@ public class ChunkNotification {
 	public static String notForSaleNotificationFormat = Colors.Yellow + "[Not For Sale]";
 	public static String plotTypeNotificationFormat = Colors.Gold + "[%s]";	
 	public static String groupNotificationFormat = Colors.White + "[%s]";
+	public static String districtNotificationFormat = Colors.DARK_GREEN + "[%s]";
 
 	/**
 	 * Called on Config load.
@@ -64,16 +66,18 @@ public static void loadFormatStrings() {
 		notForSaleNotificationFormat = Colors.translateColorCodes(TownySettings.getString(ConfigNodes.NOTIFICATION_PLOT_NOTFORSALE));
 		plotTypeNotificationFormat = Colors.translateColorCodes(TownySettings.getString(ConfigNodes.NOTIFICATION_PLOT_TYPE));
 		groupNotificationFormat = Colors.translateColorCodes(TownySettings.getString(ConfigNodes.NOTIFICATION_GROUP));
+		districtNotificationFormat = Colors.translateColorCodes(TownySettings.getString(ConfigNodes.NOTIFICATION_DISTRICT));
 	}
 
 	WorldCoord from, to;
 	boolean fromWild = false, toWild = false, toForSale = false, fromForSale = false,
-			toHomeBlock = false, toOutpostBlock = false, toPlotGroupBlock = false;
+			toHomeBlock = false, toOutpostBlock = false, toPlotGroupBlock = false,  toDistrictBlock = false;
 	TownBlock fromTownBlock, toTownBlock = null;
 	Town fromTown = null, toTown = null;
 	Resident fromResident = null, toResident = null;
 	TownBlockType fromPlotType = null, toPlotType = null;
 	PlotGroup fromPlotGroup = null, toPlotGroup = null;
+	District fromDistrict = null, toDistrict = null;
 
 	public ChunkNotification(WorldCoord from, WorldCoord to) {
 
@@ -88,6 +92,9 @@ public ChunkNotification(WorldCoord from, WorldCoord to) {
 				fromPlotGroup = fromTownBlock.getPlotObjectGroup();
 				fromForSale = fromPlotGroup.getPrice() != -1;
 			}
+			if (fromTownBlock.hasDistrict()) {
+				fromDistrict = fromTownBlock.getDistrict();
+			}
 			fromTown = fromTownBlock.getTownOrNull();
 			fromResident = fromTownBlock.getResidentOrNull();
 
@@ -109,7 +116,10 @@ public ChunkNotification(WorldCoord from, WorldCoord to) {
 				toPlotGroup = toTownBlock.getPlotObjectGroup();
 				toForSale = toPlotGroup.getPrice() != -1;
 			}
-
+			toDistrictBlock = toTownBlock.hasDistrict();
+			if (toDistrictBlock) {
+				toDistrict = toTownBlock.getDistrict();
+			}
 		} else {
 			toWild = true;
 		}
@@ -277,6 +287,10 @@ public List<String> getPlotNotificationContent() {
 		if (output != null && output.length() > 0)
 			out.add(output);
 
+		output = getDistrictNotification();
+		if (output != null && output.length() > 0)
+			out.add(output);
+
 		return out;
 	}
 
@@ -323,6 +337,12 @@ public String getGroupNotification() {
 		return null;
 	}
 
+	public String getDistrictNotification() {
+		if (toDistrictBlock && (fromDistrict != toDistrict))
+			return String.format(districtNotificationFormat, StringMgmt.remUnderscore(toDistrict.getName()));
+		return null;
+	}
+
 	public String getPlotTypeNotification() {
 
 		if (toPlotType != null && !toPlotType.equals(fromPlotType) && !TownBlockType.RESIDENTIAL.equals(toPlotType))

Towny/src/main/java/com/palmergames/bukkit/towny/TownyAsciiMap.java

@@ -170,6 +170,7 @@ else if (townblock.isOutpost())
 					Component forSaleComponent = Component.empty();
 					Component claimedAtComponent = Component.empty();
 					Component groupComponent = Component.empty();
+					Component districtComponent = Component.empty();
 
 					if (TownyEconomyHandler.isActive()) {
 						double cost = townblock.hasPlotObjectGroup() 
@@ -192,6 +193,13 @@ else if (townblock.isOutpost())
 							.append(translator.component("map_hover_plots", townblock.getPlotObjectGroup().getTownBlocks().size()).color(NamedTextColor.GREEN)
 							.append(Component.newline()))));
 
+					if (townblock.hasDistrict())
+						districtComponent = translator.component("map_hover_district").color(NamedTextColor.DARK_GREEN)
+							.append(Component.text(townblock.getDistrict().getFormattedName(), NamedTextColor.GREEN)
+							.append(translator.component("map_hover_plot_group_size").color(NamedTextColor.DARK_GREEN)
+							.append(translator.component("map_hover_plots", townblock.getDistrict().getTownBlocks().size()).color(NamedTextColor.GREEN)
+							.append(Component.newline()))));
+
 					if (townblock.hasResident())
 						residentComponent = Component.text(" (" + townblock.getResidentOrNull().getName() + ")", NamedTextColor.GREEN);
 
@@ -209,6 +217,7 @@ else if (townblock.isOutpost())
 
 					Component hoverComponent = townComponent
 						.append(plotTypeComponent)
+						.append(districtComponent)
 						.append(groupComponent)
 						.append(forSaleComponent)
 						.append(claimedAtComponent)

Towny/src/main/java/com/palmergames/bukkit/towny/TownyFormatter.java

@@ -110,6 +110,9 @@ public static StatusScreen getStatus(TownBlock townBlock, Player player) {
 		screen.addComponentOf("firespread", colourKeyValue(translator.of("firespread"), ((world.isForceFire() || townBlock.getPermissions().fire) ? translator.of("status_on"):translator.of("status_off")))); 
 		screen.addComponentOf("mobspawns", colourKeyValue(translator.of("mobspawns"), ((world.isForceTownMobs() || townBlock.getPermissions().mobs || town.isAdminEnabledMobs()) ?  translator.of("status_on"): translator.of("status_off"))));
 
+		if (townBlock.hasDistrict())
+			screen.addComponentOf("district", colourKey(translator.of("status_district_name_and_size", townBlock.getDistrict().getName(), townBlock.getDistrict().getTownBlocks().size())));
+
 		if (townBlock.hasPlotObjectGroup())
 			screen.addComponentOf("plotgroup", colourKey(translator.of("status_plot_group_name_and_size", townBlock.getPlotObjectGroup().getName(), townBlock.getPlotObjectGroup().getTownBlocks().size())));
 

Towny/src/main/java/com/palmergames/bukkit/towny/TownyUniverse.java

@@ -10,6 +10,7 @@
 import com.palmergames.bukkit.towny.exceptions.KeyAlreadyRegisteredException;
 import com.palmergames.bukkit.towny.exceptions.NotRegisteredException;
 import com.palmergames.bukkit.towny.exceptions.initialization.TownyInitException;
+import com.palmergames.bukkit.towny.object.District;
 import com.palmergames.bukkit.towny.object.Nation;
 import com.palmergames.bukkit.towny.object.PlotGroup;
 import com.palmergames.bukkit.towny.object.Position;
@@ -89,6 +90,7 @@ public class TownyUniverse {
     private final Map<UUID, Jail> jailUUIDMap = new ConcurrentHashMap<>();
     private final Map<String, String> replacementNamesMap = new ConcurrentHashMap<>();
     private final Map<UUID, PlotGroup> plotGroupUUIDMap = new ConcurrentHashMap<>();
+    private final Map<UUID, District> districtUUIDMap = new ConcurrentHashMap<>();
 
     private final Map<WorldCoord, TownyMapData> wildernessMapDataMap = new ConcurrentHashMap<WorldCoord, TownyMapData>();
     private final String rootFolder;
@@ -905,6 +907,57 @@ public PlotGroup getGroup(UUID groupID) {
 		return plotGroupUUIDMap.get(groupID);
 	}
 
+    /*
+     * District Stuff.
+     */
+
+    /**
+     * Used in loading only.
+     * @param uuid UUID to assign to the District.
+     */
+    public void newDistrictInternal(UUID uuid) {
+    	District district = new District(uuid, null, null);
+    	registerDistrict(district);
+    }
+
+
+	public void registerDistrict(District district) {
+		districtUUIDMap.put(district.getUUID(), district);
+	}
+
+	public void unregisterDistrict(UUID uuid) {
+		District district = districtUUIDMap.get(uuid);
+		if (district == null)
+			return;
+		district.getTown().removeDistrict(district);
+		districtUUIDMap.remove(uuid);
+	}
+
+	/**
+	 * Get all the districts from all towns
+	 * Returns a collection that does not reflect any district additions/removals
+	 * 
+	 * @return collection of District
+	 */
+	public Collection<District> getDistricts() {
+    	return new ArrayList<>(districtUUIDMap.values());
+	}
+
+	public Set<UUID> getDistrictUUIDs() {
+		return districtUUIDMap.keySet();
+	}
+
+	/**
+	 * Gets the district from the town name and the district UUID 
+	 * 
+	 * @param districtID UUID of the district
+	 * @return District if found, null if none found.
+	 */
+	@Nullable
+	public District getDistrict(UUID districtID) {
+		return districtUUIDMap.get(districtID);
+	}
+
 	/*
 	 * Metadata Stuff
 	 */

Towny/src/main/java/com/palmergames/bukkit/towny/command/HelpMenu.java

@@ -827,6 +827,17 @@ protected MenuBuilder load() {
 				.add(Translatable.of("msg_nfs_abr"));
 		}
 	},
+
+	PLOT_DISTRICT_HELP {
+		@Override
+		protected MenuBuilder load() {
+			return new MenuBuilder("plot district")
+				.add("add|new|create [name]", Translatable.of("plot_district_help_0"))
+				.add("remove", Translatable.of("plot_district_help_1"))
+				.add("delete", Translatable.of("plot_district_help_2"))
+				.add("rename [newName]", Translatable.of("plot_district_help_3"));
+		}
+	},
 
 	PLOT_GROUP_HELP {
 		@Override