Add AutoSaver task for Challenges Addon.

Remove WorldSave event listener.

src/main/java/world/bentobox/challenges/ChallengesAddon.java

@@ -220,6 +220,16 @@ public void onEnable() {
             this.registerRequestHandler(new LevelDataRequestHandler(this));
 
             this.registerRequestHandler(new CompletedChallengesRequestHandler(this));
+
+            if (this.settings.getAutoSaveTimer() > 0)
+            {
+                this.getPlugin().getServer().getScheduler().runTaskTimerAsynchronously(
+                    this.getPlugin(),
+                    bukkitTask -> ChallengesAddon.this.challengesManager.save(),
+                    this.settings.getAutoSaveTimer() * 60 * 20,
+                    this.settings.getAutoSaveTimer() * 60 * 20
+                );
+            }
         } else {
             this.logError("Challenges could not hook into AcidIsland or BSkyBlock so will not do anything!");
             this.setState(State.DISABLED);

src/main/java/world/bentobox/challenges/Settings.java

@@ -155,6 +155,12 @@ public class Settings implements ConfigObject
     @ConfigEntry(path = "title.title-showtime")
     private int titleShowtime = 70;
 
+    @ConfigComment("")
+    @ConfigComment("Long that represents how frequently (in minutes) challenges addon will save data to database.")
+    @ConfigComment("If this is set to 0, saving will not happen.")
+    @ConfigEntry(path = "auto-saver")
+    private long autoSaveTimer = 30;
+
     @ConfigComment("")
     @ConfigComment("This list stores GameModes in which Challenges addon should not work.")
     @ConfigComment("To disable addon it is necessary to write its name in new line that starts with -. Example:")
@@ -369,6 +375,27 @@ public int getTitleShowtime()
     }
 
 
+    /**
+     * This method returns the autoSaveTimer object.
+     * @return the autoSaveTimer object.
+     */
+    public long getAutoSaveTimer()
+    {
+        return autoSaveTimer;
+    }
+
+
+    /**
+     * This method sets the autoSaveTimer object value.
+     * @param autoSaveTimer the autoSaveTimer object new value.
+     *
+     */
+    public void setAutoSaveTimer(long autoSaveTimer)
+    {
+        this.autoSaveTimer = autoSaveTimer;
+    }
+
+
     /**
      * This method sets the titleShowtime object value.
      * @param titleShowtime the titleShowtime object new value.

src/main/java/world/bentobox/challenges/listeners/SaveListener.java

@@ -22,21 +22,6 @@ public SaveListener(ChallengesAddon addon) {
     }
 
 
-    /**
-     * This event listener handles world save event.
-     * @param e World Save event.
-     */
-    @EventHandler(priority = EventPriority.LOW, ignoreCancelled = true)
-    public void onWorldSave(WorldSaveEvent e)
-    {
-        // Save only for worlds where exist any challenge addon data.
-        if (this.addon.getChallengesManager().hasAnyChallengeData(e.getWorld()))
-        {
-            this.addon.getChallengesManager().save();
-        }
-    }
-
-
     /**
      * This event listener handles player kick event.
      * If player is kicked, then remove it from player cache data.

src/main/resources/config.yml

@@ -109,6 +109,10 @@ title:
   # Integer that represents how long title will be visible for player.
   title-showtime: 70
 #
+# Long that represents how frequently (in minutes) challenges addon will save data to database.
+# If this is set to 0, saving will not happen.
+auto-saver: 30
+#
 # This list stores GameModes in which Challenges addon should not work.
 # To disable addon it is necessary to write its name in new line that starts with -. Example:
 # disabled-gamemodes: