Add Chunk Unload Event + Update bukkit api and bStats version

pom.xml

@@ -28,13 +28,13 @@
         <dependency>
             <groupId>org.bukkit</groupId>
             <artifactId>bukkit</artifactId>
-            <version>1.13.1-R0.1-SNAPSHOT</version>
+            <version>1.13.2-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.bstats</groupId>
             <artifactId>bstats-bukkit</artifactId>
-            <version>1.4</version>
+            <version>1.5</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

src/main/java/com/simonorj/mc/phantomsmp/PhantomListener.java

@@ -17,6 +17,7 @@
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
 import org.bukkit.event.world.ChunkLoadEvent;
+import org.bukkit.event.world.ChunkUnloadEvent;
 
 import java.util.*;
 
@@ -115,6 +116,13 @@ private void untarget(Player p, boolean sleeping) {
         }
     }
 
+    private void removePhantom(Phantom phantom) {
+        Player p = phantomPlayerMap.remove(phantom);
+        if (p == null)
+            return;
+        playerPhantomMap.get(p).remove(phantom);
+    }
+
     @EventHandler(priority = EventPriority.MONITOR)
     public void onPlayerJoin(PlayerJoinEvent e) {
         playerPhantomMap.put(e.getPlayer(), new LinkedHashSet<>());
@@ -176,17 +184,22 @@ public void onPhantomInLoadedChunk(ChunkLoadEvent e) {
                 targeting((Phantom) ent, null, null);
     }
 
+    // Untrack phantoms in unloaded chunks
     @EventHandler
-    public void onPhantomDeath(EntityDeathEvent e) {
-        if (!(e.getEntity() instanceof Phantom))
+    public void onPhantomInUnloadedChunk(ChunkUnloadEvent e) {
+        if (e.getWorld().getEnvironment() != World.Environment.NORMAL)
             return;
 
-        Phantom phantom = (Phantom) e.getEntity();
+        for (Entity ent : e.getChunk().getEntities())
+            if (ent instanceof Phantom)
+                removePhantom((Phantom) ent);
+    }
 
-        Player p = phantomPlayerMap.remove(phantom);
-        if (p == null)
+    @EventHandler
+    public void onPhantomDeath(EntityDeathEvent e) {
+        if (!(e.getEntity() instanceof Phantom))
             return;
 
-        playerPhantomMap.get(p).remove(phantom);
+        removePhantom((Phantom) e.getEntity());
     }
 }