Heavy debugging and refactor for skill trees.

MMOCore-API/src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java

@@ -893,6 +893,10 @@ public class PlayerData extends SynchronizedDataHolder implements OfflinePlayerD
         return profess == null ? MMOCore.plugin.classManager.getDefaultClass() : profess;
     }
 
+    public boolean isProfessNull() {
+        return profess == null;
+    }
+
     /**
      * @deprecated Provide reason with {@link #giveMana(double, PlayerResourceUpdateEvent.UpdateReason)}
      */

MMOCore-Dist/src/main/java/net/Indyuce/mmocore/MMOCoreBukkit.java

@@ -38,6 +38,10 @@ public class MMOCoreBukkit {
         if (plugin.getConfig().getBoolean("vanilla-exp-redirection.enabled"))
             Bukkit.getPluginManager().registerEvents(new RedirectVanillaExp(plugin.getConfig().getDouble("vanilla-exp-redirection.ratio")), plugin);
 
+        if (plugin.getConfig().getBoolean("force-class-choose-on-first-login"))
+            Bukkit.getPluginManager().registerEvents(new ForceChooseClassListener(), MMOCore.plugin);
+
+
         Bukkit.getPluginManager().registerEvents(new WaypointsListener(), plugin);
         Bukkit.getPluginManager().registerEvents(new PlayerListener(), plugin);
         Bukkit.getPluginManager().registerEvents(new GoldPouchesListener(), plugin);

MMOCore-Dist/src/main/java/net/Indyuce/mmocore/listener/ForceChooseClassListener.java

@@ -0,0 +1,54 @@
+package net.Indyuce.mmocore.listener;
+
+import io.lumine.mythic.lib.api.event.SynchronizedDataLoadEvent;
+import io.lumine.mythic.lib.api.util.TemporaryListener;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.event.PlayerChangeClassEvent;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.manager.InventoryManager;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+
+public class ForceChooseClassListener implements Listener {
+    @EventHandler
+    public void onJoin(SynchronizedDataLoadEvent event) {
+        if (event.getManager().getOwningPlugin().equals(MMOCore.plugin)) {
+            PlayerData playerData = PlayerData.get(event.getHolder().getProfileId());
+            if (playerData.isProfessNull()) {
+                InventoryManager.CLASS_SELECT.newInventory(playerData).open();
+                //Give 1 class point to make sure the player can choose a class.
+                playerData.setClassPoints(1);
+                TemporaryListener closeGUIListener = new TemporaryListener(InventoryCloseEvent.getHandlerList()) {
+
+                    @EventHandler
+                    public void whenClosed(InventoryCloseEvent e) {
+                        if (e.getPlayer().equals(playerData.getPlayer()))
+                            InventoryManager.CLASS_SELECT.newInventory(playerData).open();
+                    }
+
+                    @Override
+                    public void whenClosed() {
+
+                    }
+                };
+                new TemporaryListener(PlayerChangeClassEvent.getHandlerList()) {
+                    @EventHandler
+                    public void whenChoose(PlayerChangeClassEvent e) {
+                        if (e.getPlayer().equals(playerData.getPlayer())) {
+                            closeGUIListener.close();
+                            close();
+                        }
+
+                    }
+
+                    @Override
+                    public void whenClosed() {
+
+                    }
+                };
+            }
+        }
+    }
+
+}

MMOCore-Dist/src/main/resources/config.yml

@@ -193,6 +193,9 @@ vanilla-exp-redirection:
 # Requires a SERVER reload when changed.
 override-vanilla-exp: true
 
+#Forces the player to choose a class at first join.
+force-class-choose-on-first-login: false
+
 # Check the target player's RPG profile when shift when shift right clicking.
 shift-click-player-profile-check: false