Island levels (#178)

* Stores level data on a per island basis

* Migrate after BentoBox worlds have loaded.

* Added new Admin set initial level handicap command

* Bug fixing

* Fix test

* Removed code smell

pom.xml

@@ -65,7 +65,7 @@
         <!-- Do not change unless you want different name for local builds. -->
         <build.number>-LOCAL</build.number>
         <!-- This allows to change between versions. -->
-        <build.version>2.3.4</build.version>
+        <build.version>2.4.0</build.version>
     </properties>
 
     <!-- Profiles will allow to automatically change build version. -->

src/main/java/world/bentobox/level/Level.java

@@ -22,6 +22,7 @@ import world.bentobox.bentobox.database.objects.Island;
 import world.bentobox.level.calculators.Pipeliner;
 import world.bentobox.level.commands.AdminLevelCommand;
 import world.bentobox.level.commands.AdminLevelStatusCommand;
+import world.bentobox.level.commands.AdminSetInitialLevelCommand;
 import world.bentobox.level.commands.AdminTopCommand;
 import world.bentobox.level.commands.IslandLevelCommand;
 import world.bentobox.level.commands.IslandTopCommand;
@@ -30,7 +31,6 @@ import world.bentobox.level.config.BlockConfig;
 import world.bentobox.level.config.ConfigSettings;
 import world.bentobox.level.listeners.IslandActivitiesListeners;
 import world.bentobox.level.listeners.JoinLeaveListener;
-import world.bentobox.level.objects.LevelsData;
 import world.bentobox.level.requests.LevelRequestHandler;
 import world.bentobox.level.requests.TopTenRequestHandler;
 
@@ -99,6 +99,9 @@ public class Level extends Addon implements Listener {
 
     @EventHandler
     public void onBentoBoxReady(BentoBoxReadyEvent e) {
+        // Perform upgrade check
+        manager.migrate();
+        // Load TopTens
         manager.loadTopTens();
         /*
          * DEBUG code to generate fake islands and then try to level them all.
@@ -187,6 +190,7 @@ public class Level extends Addon implements Listener {
             new AdminLevelCommand(this, adminCommand);
             new AdminTopCommand(this, adminCommand);
             new AdminLevelStatusCommand(this, adminCommand);
+            new AdminSetInitialLevelCommand(this, adminCommand);
         });
         gm.getPlayerCommand().ifPresent(playerCmd -> {
             new IslandLevelCommand(this, playerCmd);
@@ -319,12 +323,4 @@ public class Level extends Addon implements Listener {
         if (island != null) getManager().calculateLevel(playerUUID, island);
     }
 
-    /**
-     * Load a player from the cache or database
-     * @param targetPlayer - UUID of target player
-     * @return LevelsData object or null if not found
-     */
-    public LevelsData getLevelsData(UUID targetPlayer) {
-        return getManager().getLevelsData(targetPlayer);
-    }
 }

src/main/java/world/bentobox/level/LevelsManager.java

@@ -9,6 +9,7 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Objects;
 import java.util.TreeMap;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
@@ -21,6 +22,8 @@ import org.bukkit.World;
 import org.eclipse.jdt.annotation.NonNull;
 import org.eclipse.jdt.annotation.Nullable;
 
+import com.google.common.collect.Maps;
+
 import world.bentobox.bentobox.api.events.addon.AddonBaseEvent;
 import world.bentobox.bentobox.api.events.addon.AddonEvent;
 import world.bentobox.bentobox.api.panels.PanelItem;
@@ -33,6 +36,7 @@ import world.bentobox.bentobox.database.objects.Island;
 import world.bentobox.level.calculators.Results;
 import world.bentobox.level.events.IslandLevelCalculatedEvent;
 import world.bentobox.level.events.IslandPreLevelEvent;
+import world.bentobox.level.objects.IslandLevels;
 import world.bentobox.level.objects.LevelsData;
 import world.bentobox.level.objects.TopTenData;
 import world.bentobox.level.panels.DetailsGUITab;
@@ -55,9 +59,9 @@ public class LevelsManager {
 
 
     // Database handler for level data
-    private final Database<LevelsData> handler;
+    private final Database<IslandLevels> handler;
     // A cache of island levels.
-    private final Map<UUID, LevelsData> levelsCache;
+    private final Map<String, IslandLevels> levelsCache;
 
     private final Database<TopTenData> topTenHandler;
     // Top ten lists
@@ -72,7 +76,7 @@ public class LevelsManager {
         // Get the BentoBox database
         // Set up the database handler to store and retrieve data
         // Note that these are saved by the BentoBox database
-        handler = new Database<>(addon, LevelsData.class);
+        handler = new Database<>(addon, IslandLevels.class);
         // Top Ten handler
         topTenHandler = new Database<>(addon, TopTenData.class);
         // Initialize the cache
@@ -83,6 +87,39 @@ public class LevelsManager {
         background = new PanelItemBuilder().icon(Material.BLACK_STAINED_GLASS_PANE).name(" ").build();
     }
 
+    public void migrate() {
+        Database<LevelsData> oldDb = new Database<>(addon, LevelsData.class);
+        oldDb.loadObjects().forEach(ld -> {
+            try {
+                UUID owner = UUID.fromString(ld.getUniqueId());
+                // Step through each world
+                ld.getLevels().keySet().stream()
+                // World
+                .map(Bukkit::getWorld).filter(Objects::nonNull)
+                // Island
+                .map(w -> addon.getIslands().getIsland(w, owner)).filter(Objects::nonNull)
+                .forEach(i -> {
+                    // Make new database entry
+                    World w = i.getWorld();
+                    IslandLevels il = new IslandLevels(i.getUniqueId());
+                    il.setInitialLevel(ld.getInitialLevel(w));
+                    il.setLevel(ld.getLevel(w));
+                    il.setMdCount(ld.getMdCount(w));
+                    il.setPointsToNextLevel(ld.getPointsToNextLevel(w));
+                    il.setUwCount(ld.getUwCount(w));
+                    // Save it
+                    handler.saveObjectAsync(il);
+                });
+                // Now delete the old database entry
+                oldDb.deleteID(ld.getUniqueId());
+            } catch (Exception e) {
+                addon.logError("Could not migrate level data database! " + e.getMessage());
+                e.printStackTrace();
+                return;
+            }
+        });
+    }
+
     /**
      * Add a score to the top players list
      * @param world - world
@@ -286,9 +323,7 @@ public class LevelsManager {
      * @return initial level of island
      */
     public long getInitialLevel(Island island) {
-        @Nullable
+        return getLevelsData(island).getInitialLevel();
-        LevelsData ld = getLevelsData(island.getOwner());
-        return ld == null ? 0 : ld.getInitialLevel(island.getWorld());
     }
 
     /**
@@ -299,11 +334,9 @@ public class LevelsManager {
      */
     public long getIslandLevel(@NonNull World world, @Nullable UUID targetPlayer) {
         if (targetPlayer == null) return 0L;
-        // Get the island owner
+        // Get the island
-        UUID owner = addon.getIslands().getOwner(world, targetPlayer);
+        Island island = addon.getIslands().getIsland(world, targetPlayer);
-        if (owner == null) return 0L;
+        return island == null ? 0L : getLevelsData(island).getLevel();
-        LevelsData ld = getLevelsData(owner);
-        return ld == null ? 0L : ld.getLevel(world);
     }
 
     /**
@@ -317,23 +350,30 @@ public class LevelsManager {
     }
 
     /**
-     * Load a level data for the island owner from the cache or database. Only island owners are stored.
+     * Load a level data for the island from the cache or database.
-     * @param islandOwner - UUID of island owner
+     * @param island - UUID of island
-     * @return LevelsData object or null if not found
+     * @return IslandLevels object
      */
-    @Nullable
+    @NonNull
-    public LevelsData getLevelsData(@NonNull UUID islandOwner) {
+    public IslandLevels getLevelsData(@NonNull Island island) {
+        String id = island.getUniqueId();
+        if (levelsCache.containsKey(id)) {
+            return levelsCache.get(id);
+        }
         // Get from database if not in cache
-        if (!levelsCache.containsKey(islandOwner) && handler.objectExists(islandOwner.toString())) {
+        if (handler.objectExists(id)) {
-            LevelsData ld = handler.loadObject(islandOwner.toString());
+            IslandLevels ld = handler.loadObject(id);
             if (ld != null) {
-                levelsCache.put(islandOwner, ld);
+                levelsCache.put(id, ld);
             } else {
-                handler.deleteID(islandOwner.toString());
+                handler.deleteID(id);
+                levelsCache.put(id, new IslandLevels(id));
             }
+        } else {
+            levelsCache.put(id, new IslandLevels(id));
         }
-        // Return cached value or null
+        // Return cached value
-        return levelsCache.get(islandOwner);
+        return levelsCache.get(id);
     }
 
     /**
@@ -344,10 +384,8 @@ public class LevelsManager {
      */
     public String getPointsToNextString(@NonNull World world, @Nullable UUID targetPlayer) {
         if (targetPlayer == null) return "";
-        UUID owner = addon.getIslands().getOwner(world, targetPlayer);
+        Island island = addon.getIslands().getIsland(world, targetPlayer);
-        if (owner == null) return "";
+        return island == null ? "" : String.valueOf(getLevelsData(island).getPointsToNextLevel());
-        LevelsData ld = getLevelsData(owner);
-        return ld == null ? "" : String.valueOf(ld.getPointsToNextLevel(world));
     }
 
     /**
@@ -394,9 +432,6 @@ public class LevelsManager {
                 // Update based on user data
                 // Remove any non island owners
                 tt.getTopTen().keySet().removeIf(u -> !addon.getIslands().isOwner(world, u));
-                for (UUID uuid : tt.getTopTen().keySet()) {
-                    tt.getTopTen().compute(uuid, (k,v) -> v = updateLevel(k, world));
-                }
             } else {
                 addon.logError("TopTen world '" + tt.getUniqueId() + "' is not known on server. You might want to delete this table. Skipping...");
             }
@@ -409,14 +444,6 @@ public class LevelsManager {
      * @param uuid - the player's uuid
      */
     public void removeEntry(World world, UUID uuid) {
-        // Load the user if they haven't yet done anything to put them in the cache
-        this.getLevelsData(uuid);
-        // Remove them
-        if (levelsCache.containsKey(uuid)) {
-            levelsCache.get(uuid).remove(world);
-            // Save
-            handler.saveObjectAsync(levelsCache.get(uuid));
-        }
         if (topTenLists.containsKey(world)) {
             topTenLists.get(world).getTopTen().remove(uuid);
             topTenHandler.saveObjectAsync(topTenLists.get(world));
@@ -441,14 +468,14 @@ public class LevelsManager {
     }
 
     /**
-     * Set an initial island level for player
+     * Set an initial island level
-     * @param island - the island to set. Must have a non-null world and owner
+     * @param island - the island to set. Must have a non-null world
      * @param lv - initial island level
      */
     public void setInitialIslandLevel(@NonNull Island island, long lv) {
-        if (island.getOwner() == null || island.getWorld() == null) return;
+        if (island.getWorld() == null) return;
-        levelsCache.computeIfAbsent(island.getOwner(), LevelsData::new).setInitialLevel(island.getWorld(), lv);
+        levelsCache.computeIfAbsent(island.getUniqueId(), IslandLevels::new).setInitialLevel(lv);
-        handler.saveObjectAsync(levelsCache.get(island.getOwner()));
+        handler.saveObjectAsync(levelsCache.get(island.getUniqueId()));
     }
 
     /**
@@ -458,10 +485,18 @@ public class LevelsManager {
      * @param lv - level
      */
     public void setIslandLevel(@NonNull World world, @NonNull UUID targetPlayer, long lv) {
-        levelsCache.computeIfAbsent(targetPlayer, LevelsData::new).setLevel(world, lv);
+        // Get the island
-        handler.saveObjectAsync(levelsCache.get(targetPlayer));
+        Island island = addon.getIslands().getIsland(world, targetPlayer);
+        if (island != null) {
+            String id = island.getUniqueId();
+            IslandLevels il = levelsCache.computeIfAbsent(id, IslandLevels::new);
+            // Remove the initial level
+            il.setLevel(lv - il.getInitialLevel());
+            handler.saveObjectAsync(levelsCache.get(id));
             // Update TopTen
-        addToTopTen(world, targetPlayer, levelsCache.get(targetPlayer).getLevel(world));
+            addToTopTen(world, targetPlayer, levelsCache.get(id).getLevel());
+        }
+
     }
 
     /**
@@ -471,26 +506,27 @@ public class LevelsManager {
      * @param r - results of the calculation
      */
     private void setIslandResults(World world, @NonNull UUID owner, Results r) {
-        LevelsData ld = levelsCache.computeIfAbsent(owner, LevelsData::new);
+        // Get the island
-        ld.setLevel(world, r.getLevel());
+        Island island = addon.getIslands().getIsland(world, owner);
-        ld.setUwCount(world, r.getUwCount());
+        if (island == null) return;
-        ld.setMdCount(world, r.getMdCount());
+        IslandLevels ld = levelsCache.computeIfAbsent(island.getUniqueId(), IslandLevels::new);
-        ld.setPointsToNextLevel(world, r.getPointsToNextLevel());
+        ld.setLevel(r.getLevel() - ld.getInitialLevel());
-        levelsCache.put(owner, ld);
+        ld.setUwCount(Maps.asMap(r.getUwCount().elementSet(), elem -> r.getUwCount().count(elem)));
+        ld.setMdCount(Maps.asMap(r.getMdCount().elementSet(), elem -> r.getMdCount().count(elem)));
+        ld.setPointsToNextLevel(r.getPointsToNextLevel());
+        levelsCache.put(island.getUniqueId(), ld);
         handler.saveObjectAsync(ld);
         // Update TopTen
-        addToTopTen(world, owner, ld.getLevel(world));
+        addToTopTen(world, owner, ld.getLevel());
     }
 
-    private Long updateLevel(UUID uuid, World world) {
+    /**
-        if (handler.objectExists(uuid.toString())) {
+     * Removes island from cache when it is deleted
-            @Nullable
+     * @param uniqueId - id of island
-            LevelsData ld = handler.loadObject(uuid.toString());
+     */
-            if (ld != null) {
+    public void deleteIsland(String uniqueId) {
-                return ld.getLevel(world);
+        levelsCache.remove(uniqueId);
-            }
+        handler.deleteID(uniqueId);
-        }
-        return 0L;
     }
 
 }

src/main/java/world/bentobox/level/commands/AdminSetInitialLevelCommand.java

@@ -0,0 +1,80 @@
+package world.bentobox.level.commands;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import org.eclipse.jdt.annotation.Nullable;
+
+import world.bentobox.bentobox.api.commands.CompositeCommand;
+import world.bentobox.bentobox.api.localization.TextVariables;
+import world.bentobox.bentobox.api.user.User;
+import world.bentobox.bentobox.database.objects.Island;
+import world.bentobox.bentobox.util.Util;
+import world.bentobox.level.Level;
+
+public class AdminSetInitialLevelCommand extends CompositeCommand {
+
+    private @Nullable UUID targetUUID;
+    private @Nullable Island island;
+    private Level addon;
+
+    public AdminSetInitialLevelCommand(Level addon, CompositeCommand parent) {
+        super(parent, "sethandicap");
+        this.addon = addon;
+    }
+
+    @Override
+    public void setup() {
+        this.setPermission("admin.level.sethandicap");
+        this.setOnlyPlayer(false);
+        this.setParametersHelp("admin.level.sethandicap.parameters");
+        this.setDescription("admin.level.sethandicap.description");
+    }
+
+    @Override
+    public Optional<List<String>> tabComplete(User user, String alias, List<String> args) {
+        String lastArg = !args.isEmpty() ? args.get(args.size()-1) : "";
+        if (args.isEmpty()) {
+            // Don't show every player on the server. Require at least the first letter
+            return Optional.empty();
+        }
+        List<String> options = new ArrayList<>(Util.getOnlinePlayerList(user));
+        return Optional.of(Util.tabLimit(options, lastArg));
+    }
+
+    @Override
+    public boolean execute(User user, String label, List<String> args) {
+        String initialLevel = String.valueOf(addon.getManager().getInitialLevel(island));
+        long lv = Long.parseLong(args.get(1));
+        addon.getManager().setInitialIslandLevel(island, lv);
+        user.sendMessage("admin.level.sethandicap.changed", TextVariables.NUMBER, initialLevel, "[new_number]", String.valueOf(lv));
+        return true;
+    }
+
+    @Override
+    public boolean canExecute(User user, String label, List<String> args) {
+        if (args.size() != 2) {
+            showHelp(this, user);
+            return false;
+        }
+        targetUUID = getAddon().getPlayers().getUUID(args.get(0));
+        if (targetUUID == null) {
+            user.sendMessage("general.errors.unknown-player", TextVariables.NAME, args.get(0));
+            return false;
+        }
+        // Check value
+        if (!Util.isInteger(args.get(1), true)) {
+            user.sendMessage("admin.level.sethandicap.invalid-level");
+            return false;
+        }
+        // Check island
+        island = getAddon().getIslands().getIsland(getWorld(), targetUUID);
+        if (island == null) {
+            user.sendMessage("general.errors.player-has-no-island");
+            return false;
+        }
+        return true;
+    }
+}

src/main/java/world/bentobox/level/commands/IslandLevelCommand.java

@@ -38,7 +38,7 @@ public class IslandLevelCommand extends CompositeCommand {
             final UUID playerUUID = getPlugin().getPlayers().getUUID(args.get(0));
             if (playerUUID == null) {
                 user.sendMessage("general.errors.unknown-player", TextVariables.NAME, args.get(0));
-                return true;
+                return false;
             }
             // Ops, console and admin perms can request and calculate other player levels
             if (!user.isPlayer() || user.isOp() || user.hasPermission(this.getPermissionPrefix() + "admin.level")) {

src/main/java/world/bentobox/level/listeners/IslandActivitiesListeners.java

@@ -8,6 +8,7 @@ import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 
 import world.bentobox.bentobox.api.events.island.IslandEvent.IslandCreatedEvent;
+import world.bentobox.bentobox.api.events.island.IslandEvent.IslandDeleteEvent;
 import world.bentobox.bentobox.api.events.island.IslandEvent.IslandPreclearEvent;
 import world.bentobox.bentobox.api.events.island.IslandEvent.IslandRegisteredEvent;
 import world.bentobox.bentobox.api.events.island.IslandEvent.IslandResettedEvent;
@@ -65,6 +66,12 @@ public class IslandActivitiesListeners implements Listener {
         remove(world, uuid);
     }
 
+    @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
+    public void onIslandDeleted(IslandDeleteEvent e) {
+        // Remove island
+        addon.getManager().deleteIsland(e.getIsland().getUniqueId());
+    }
+
     private void remove(World world, UUID uuid) {
         if (uuid != null && world != null) {
             addon.getManager().removeEntry(world, uuid);
@@ -88,14 +95,14 @@ public class IslandActivitiesListeners implements Listener {
     @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
     public void onIsland(IslandUnregisteredEvent e) {
 
-        // Remove player from the top ten and level
+        // Remove player from the top ten
         remove(e.getIsland().getWorld(), e.getPlayerUUID());
     }
 
     @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
     public void onIsland(IslandRegisteredEvent e) {
 
-        // Remove player from the top ten and level
+        // Remove player from the top ten
         remove(e.getIsland().getWorld(), e.getPlayerUUID());
     }
 

src/main/java/world/bentobox/level/listeners/JoinLeaveListener.java

@@ -27,8 +27,6 @@ public class JoinLeaveListener implements Listener {
 
     @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
     public void onPlayerJoin(PlayerJoinEvent e) {
-        // Load player into cache
-        addon.getManager().getLevelsData(e.getPlayer().getUniqueId());
         // If level calc on login is enabled, run through all the worlds and calculate the level
         if (addon.getSettings().isCalcOnLogin()) {
             addon.getPlugin().getAddonsManager().getGameModeAddons().stream()

src/main/java/world/bentobox/level/objects/IslandLevels.java

@@ -0,0 +1,154 @@
+package world.bentobox.level.objects;
+
+import java.util.EnumMap;
+import java.util.Map;
+
+import org.bukkit.Material;
+
+import com.google.gson.annotations.Expose;
+
+import world.bentobox.bentobox.database.objects.DataObject;
+import world.bentobox.bentobox.database.objects.Table;
+
+/**
+ * Stores the levels data of the island.
+ * A note - if this class is extended to support new exposed fields and legacy data doesn't include those fields
+ * they will be set to null by GSON. They will not be initialized and if any attempt is made to use them, then
+ * the JVM will give up WITHOUT AN ERROR!!! That is why there are null checks throughout this class.
+ *
+ * @author tastybento
+ *
+ */
+@Table(name = "IslandLevels")
+public class IslandLevels implements DataObject {
+
+    // uniqueId is the island's UUID
+    @Expose
+    private String uniqueId = "";
+
+    /**
+     * Island level
+     */
+    @Expose
+    private long level;
+    /**
+     * Initial level
+     */
+    @Expose
+    private long initialLevel;
+    /**
+     * Points to next level
+     */
+    @Expose
+    private long pointsToNextLevel;
+
+    /**
+     * Underwater count
+     */
+    @Expose
+    private Map<Material, Integer> uwCount;
+
+    /**
+     * MaterialData count - count of all blocks
+     */
+    @Expose
+    private Map<Material, Integer> mdCount;
+
+    /**
+     * Constructor for new island
+     * @param islandUUID - island UUID
+     */
+    public IslandLevels(String islandUUID) {
+        uniqueId = islandUUID;
+        uwCount = new EnumMap<>(Material.class);
+        mdCount = new EnumMap<>(Material.class);
+    }
+
+    /**
+     * @return the uniqueId
+     */
+    @Override
+    public String getUniqueId() {
+        return uniqueId;
+    }
+
+    /**
+     * @param uniqueId the uniqueId to set
+     */
+    @Override
+    public void setUniqueId(String uniqueId) {
+        this.uniqueId = uniqueId;
+    }
+
+    /**
+     * @return the level
+     */
+    public long getLevel() {
+        return level;
+    }
+
+    /**
+     * @param level the level to set
+     */
+    public void setLevel(long level) {
+        this.level = level;
+    }
+
+    /**
+     * @return the initialLevel
+     */
+    public long getInitialLevel() {
+        return initialLevel;
+    }
+
+    /**
+     * @param initialLevel the initialLevel to set
+     */
+    public void setInitialLevel(long initialLevel) {
+        this.initialLevel = initialLevel;
+    }
+
+    /**
+     * @return the pointsToNextLevel
+     */
+    public long getPointsToNextLevel() {
+        return pointsToNextLevel;
+    }
+
+    /**
+     * @param pointsToNextLevel the pointsToNextLevel to set
+     */
+    public void setPointsToNextLevel(long pointsToNextLevel) {
+        this.pointsToNextLevel = pointsToNextLevel;
+    }
+
+    /**
+     * @return the uwCount
+     */
+    public Map<Material, Integer> getUwCount() {
+        return uwCount;
+    }
+
+    /**
+     * @param uwCount the uwCount to set
+     */
+    public void setUwCount(Map<Material, Integer> uwCount) {
+        this.uwCount = uwCount;
+    }
+
+    /**
+     * @return the mdCount
+     */
+    public Map<Material, Integer> getMdCount() {
+        return mdCount;
+    }
+
+    /**
+     * @param mdCount the mdCount to set
+     */
+    public void setMdCount(Map<Material, Integer> mdCount) {
+        this.mdCount = mdCount;
+    }
+
+
+}

src/main/java/world/bentobox/level/panels/DetailsGUITab.java

@@ -27,7 +27,7 @@ import world.bentobox.bentobox.api.user.User;
 import world.bentobox.bentobox.database.objects.Island;
 import world.bentobox.bentobox.util.Util;
 import world.bentobox.level.Level;
-import world.bentobox.level.objects.LevelsData;
+import world.bentobox.level.objects.IslandLevels;
 
 /**
  * @author tastybento
@@ -131,20 +131,20 @@ public class DetailsGUITab implements Tab, ClickHandler {
 
     private void generateReport(DetailsType type) {
         items = new ArrayList<>();
-        LevelsData ld = addon.getManager().getLevelsData(island.getOwner());
+        IslandLevels ld = addon.getManager().getLevelsData(island);
         // Get the items from the report
         Map<Material, Integer> sumTotal = new EnumMap<>(Material.class);
-        sumTotal.putAll(ld.getMdCount(world));
+        sumTotal.putAll(ld.getMdCount());
-        sumTotal.putAll(ld.getUwCount(world));
+        sumTotal.putAll(ld.getUwCount());
         switch(type) {
         case ABOVE_SEA_LEVEL_BLOCKS:
-            ld.getMdCount(world).forEach(this::createItem);
+            ld.getMdCount().forEach(this::createItem);
             break;
         case SPAWNERS:
             sumTotal.entrySet().stream().filter(m -> m.getKey().equals(Material.SPAWNER)).forEach(e -> createItem(e.getKey(), e.getValue()));
             break;
         case UNDERWATER_BLOCKS:
-            ld.getUwCount(world).forEach(this::createItem);
+            ld.getUwCount().forEach(this::createItem);
             break;
         default:
             sumTotal.forEach(this::createItem);

src/main/resources/locales/en-US.yml

@@ -7,6 +7,11 @@ admin:
   level:
     parameters: "<player>"
     description: "calculate the island level for player"
+    sethandicap:
+      parameters: <player> <handicap>
+      description: "set the island handicap, usually the level of the starter island"
+      changed: "&a Initial island handicap changed from [number] to [new_number]."
+      invalid-level: "&c Invalid handicap. Use an integer."
   levelstatus:
     description: "show how many islands are in the queue for scanning"
     islands-in-queue: "&a Islands in queue: [number]"
@@ -18,6 +23,7 @@ admin:
       description: "remove player from Top Ten"
       parameters: "<player>"
 
+
 island:
   level: 
     parameters: "[player]"

src/test/java/world/bentobox/level/LevelTest.java

@@ -275,8 +275,8 @@ public class LevelTest {
         addon.onEnable();
         verify(plugin).logWarning("[Level] Level Addon: No such world in blockconfig.yml : acidisland_world");
         verify(plugin).log("[Level] Level hooking into BSkyBlock");
-        verify(cmd, times(3)).getAddon(); // Three commands
+        verify(cmd, times(3)).getAddon(); // 3 commands
-        verify(adminCmd, times(3)).getAddon(); // Three commands
+        verify(adminCmd, times(4)).getAddon(); // Four commands
         // Placeholders
         verify(phm).registerPlaceholder(eq(addon), eq("bskyblock_island_level"), any());
         verify(phm).registerPlaceholder(eq(addon), eq("bskyblock_visited_island_level"), any());

src/test/java/world/bentobox/level/LevelsManagerTest.java

@@ -16,6 +16,7 @@ import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
@@ -58,7 +59,7 @@ import world.bentobox.bentobox.managers.PlayersManager;
 import world.bentobox.level.calculators.Pipeliner;
 import world.bentobox.level.calculators.Results;
 import world.bentobox.level.config.ConfigSettings;
-import world.bentobox.level.objects.LevelsData;
+import world.bentobox.level.objects.IslandLevels;
 import world.bentobox.level.objects.TopTenData;
 
 /**
@@ -104,7 +105,7 @@ public class LevelsManagerTest {
     @Mock
     private PluginManager pim;
     @Mock
-    private LevelsData levelsData;
+    private IslandLevels levelsData;
     @Mock
     private IslandsManager im;
 
@@ -125,6 +126,7 @@ public class LevelsManagerTest {
     /**
      * @throws java.lang.Exception
      */
+    @SuppressWarnings("unchecked")
     @Before
     public void setUp() throws Exception {
         when(addon.getPlugin()).thenReturn(plugin);
@@ -154,9 +156,11 @@ public class LevelsManagerTest {
         when(island.getMemberSet()).thenReturn(iset);
         when(island.getOwner()).thenReturn(uuid);
         when(island.getWorld()).thenReturn(world);
+        when(island.getUniqueId()).thenReturn(UUID.randomUUID().toString());
         // Default to uuid's being island owners
         when(im.isOwner(eq(world), any())).thenReturn(true);
         when(im.getOwner(any(), any(UUID.class))).thenAnswer(in -> in.getArgument(1, UUID.class));
+        when(im.getIsland(eq(world), eq(uuid))).thenReturn(island);
 
         // Player
         when(player.getUniqueId()).thenReturn(uuid);
@@ -205,9 +209,10 @@ public class LevelsManagerTest {
         // Include a known UUID
         ttd.getTopTen().put(uuid, 456789L);
         topTen.add(ttd);
-        when(handler.loadObjects()).thenReturn(topTen);
+        // Supply no island levels first, then topTen
+        when(handler.loadObjects()).thenReturn(Collections.emptyList(), topTen);
         when(handler.objectExists(anyString())).thenReturn(true);
-        when(levelsData.getLevel(any())).thenReturn(-5L, -4L, -3L, -2L, -1L, 0L, 1L, 2L, 3L, 4L, 5L, 45678L);
+        when(levelsData.getLevel()).thenReturn(-5L, -4L, -3L, -2L, -1L, 0L, 1L, 2L, 3L, 4L, 5L, 45678L);
         when(levelsData.getUniqueId()).thenReturn(uuid.toString());
         when(handler.loadObject(anyString())).thenReturn(levelsData );
 
@@ -220,6 +225,7 @@ public class LevelsManagerTest {
         when(iwm.getPermissionPrefix(any())).thenReturn("bskyblock.");
 
         lm = new LevelsManager(addon);
+        lm.migrate();
     }
 
     /**
@@ -252,7 +258,7 @@ public class LevelsManagerTest {
         lm.calculateLevel(uuid, island);
         cf.complete(results);
 
-        assertEquals(Long.valueOf(10000), lm.getLevelsData(uuid).getLevel(world));
+        assertEquals(10000L, lm.getLevelsData(island).getLevel());
         //Map<UUID, Long> tt = lm.getTopTen(world, 10);
         //assertEquals(1, tt.size());
         //assertTrue(tt.get(uuid) == 10000);
@@ -280,7 +286,9 @@ public class LevelsManagerTest {
      */
     @Test
     public void testGetPointsToNextString() {
-        assertEquals("0", lm.getPointsToNextString(world, UUID.randomUUID()));
+        // No island player
+        assertEquals("", lm.getPointsToNextString(world, UUID.randomUUID()));
+        // Player has island
         assertEquals("0", lm.getPointsToNextString(world, uuid));
     }
 
@@ -297,7 +305,7 @@ public class LevelsManagerTest {
      */
     @Test
     public void testGetLevelsData() {
-        assertEquals(levelsData, lm.getLevelsData(uuid));
+        assertEquals(levelsData, lm.getLevelsData(island));
 
     }