Resets statistics as well as advancements.

#8
Some advancements can be triggered by statistics so those need to be
reset as well.

src/main/java/world/bentobox/boxed/Boxed.java

@@ -36,6 +36,11 @@ public class Boxed extends GameModeAddon {
             .type(Type.PROTECTION)
             .defaultRank(RanksManager.OWNER_RANK)
             .build();
+    public static final Flag ALLOW_MOVE_BOX = new Flag.Builder("ALLOW_MOVE_BOX", Material.COMPOSTER)
+            .mode(Mode.BASIC)
+            .type(Type.WORLD_SETTING)
+            .defaultSetting(true)
+            .build();
 
     private static final String NETHER = "_nether";
     private static final String THE_END = "_the_end";
@@ -108,10 +113,16 @@ public void onEnable(){
         advManager = new AdvancementsManager(this);
         // Get delete chunk generator
         delChunks = new DeleteGen(this);
-        // Make flag only applicable to this game mode
+        // Make flags only applicable to this game mode
         MOVE_BOX.setGameModes(Collections.singleton(this));
+        ALLOW_MOVE_BOX.setGameModes(Collections.singleton(this));
         // Register protection flag with BentoBox
-        getPlugin().getFlagsManager().registerFlag(this, MOVE_BOX);
+        getPlugin().getFlagsManager().registerFlag(this, ALLOW_MOVE_BOX);
+        if (ALLOW_MOVE_BOX.isSetForWorld(getOverWorld())) {
+            getPlugin().getFlagsManager().registerFlag(this, MOVE_BOX);
+        } else {
+            getPlugin().getFlagsManager().unregister(MOVE_BOX);
+        }
 
     }
 

src/main/java/world/bentobox/boxed/listeners/AdvancementListener.java

@@ -1,16 +1,20 @@
 package world.bentobox.boxed.listeners;
 
+import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Spliterator;
 import java.util.Spliterators;
 import java.util.stream.StreamSupport;
 
 import org.bukkit.Bukkit;
+import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
 import org.bukkit.Sound;
+import org.bukkit.Statistic;
 import org.bukkit.advancement.Advancement;
 import org.bukkit.advancement.AdvancementProgress;
+import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
@@ -195,14 +199,49 @@ private void grantAdv(User user, List<String> list) {
 
     }
 
+    @SuppressWarnings("deprecation")
     private void clearAdv(User user) {
+        // Clear stats
+        // Statistics
+        Arrays.stream(Statistic.values()).forEach(s -> {
+            switch(s.getType()) {
+            case BLOCK:
+                for (Material m: Material.values()) {
+                    if (m.isBlock() && !m.isLegacy()) {
+                            user.getPlayer().setStatistic(s, m, 0);
+                    }
+                }
+            case ITEM:
+                for (Material m: Material.values()) {
+                    if (m.isItem() && !m.isLegacy()) {
+                        user.getPlayer().setStatistic(s, m, 0);
+                    }
+                }
+                break;
+            case ENTITY:
+                for (EntityType en: EntityType.values()) {
+                    if (en.isAlive()) {
+                        user.getPlayer().setStatistic(s, en, 0);
+                    }
+                }
+                break;
+            case UNTYPED:
+                user.getPlayer().setStatistic(s, 0);
+                break;
+            default:
+                break;
+
+            }
+
+        });
         // Clear advancements
         Iterator<Advancement> it = Bukkit.advancementIterator();
         while (it.hasNext()) {
             Advancement a = it.next();
             AdvancementProgress p = user.getPlayer().getAdvancementProgress(a);
             p.getAwardedCriteria().forEach(p::revokeCriteria);
         }
+
     } 
 
     /**