feat(ObservableListener): Changed UserManagerListener to ObservableLi…

…stener

BREAKING CHANGE: Bumped major version due to extensive internal API changes

core/src/main/java/com/georgev22/skinoverlay/SkinOverlay.java

@@ -20,7 +20,7 @@
 import com.georgev22.skinoverlay.hook.SkinHook;
 import com.georgev22.skinoverlay.hook.hooks.SkinHookImpl;
 import com.georgev22.skinoverlay.listeners.DebugListeners;
-import com.georgev22.skinoverlay.listeners.UserManagerListener;
+import com.georgev22.skinoverlay.listeners.ObservableListener;
 import com.georgev22.skinoverlay.utilities.MessagesUtil;
 import com.georgev22.skinoverlay.utilities.OptionsUtil;
 import com.georgev22.skinoverlay.utilities.PluginMessageUtils;
@@ -328,18 +328,37 @@ protected void setupCommands() {
     }
 
     /**
-     * Adds the specified list of {@link UserManagerListener}s to this {@link UserManager} instance. Each listener in the
-     * list will be registered with the {@link ObservableObjectMap} that holds the loaded users in the user manager, and
-     * will be notified whenever a new user is added to the map.
+     * Adds the specified list of {@link ObservableListener}s to this {@link UserManager} instance.
+     * Each listener in the
+     * list will be registered with the {@link ObservableObjectMap}
+     * that holds the loaded users in the user manager,
+     * and
+     * will be notified whenever a new user is added or removed to the map.
      *
      * @param managerListeners the list of listeners to be added
      */
-    public void registerUserManagerListeners(@NotNull List<UserManagerListener<UUID, UserManager.User>> managerListeners) {
-        for (UserManagerListener<UUID, UserManager.User> managerListener : managerListeners) {
+    public void registerUserManagerListeners(@NotNull List<ObservableListener<UUID, UserManager.User>> managerListeners) {
+        for (ObservableListener<UUID, UserManager.User> managerListener : managerListeners) {
             this.userManager.getLoadedUsers().addListener(managerListener);
         }
     }
 
+    /**
+     * Adds the specified list of {@link ObservableListener}s to this {@link SkinOverlayImpl} instance.
+     * Each listener in the
+     * list will be registered with the {@link ObservableObjectMap}
+     * that holds the online players in the server,
+     * and
+     * will be notified whenever a new player is added or removed to the map.
+     *
+     * @param pListeners the list of listeners to be added
+     */
+    public void registerOnlinePlayersListeners(@NotNull List<ObservableListener<UUID, PlayerObject>> pListeners) {
+        for (ObservableListener<UUID, PlayerObject> pListener : pListeners) {
+            this.skinOverlay.onlinePlayers().addListener(pListener);
+        }
+    }
+
 
     private void unregisterCommands() {
         if (!type().isProxy() && OptionsUtil.PROXY.getBooleanValue())

core/src/main/java/com/georgev22/skinoverlay/listeners/ObservableListener.java

@@ -0,0 +1,13 @@
+package com.georgev22.skinoverlay.listeners;
+
+import com.georgev22.library.maps.ObservableObjectMap;
+import org.jetbrains.annotations.Nullable;
+
+public abstract class ObservableListener<K, V> implements ObservableObjectMap.MapChangeListener<K, V> {
+
+    @Override
+    public abstract void entryAdded(K key, V value);
+
+    @Override
+    public abstract void entryRemoved(Object key, @Nullable Object value);
+}