fix: text blocks are not supported by lib

nicko-core/src/main/java/net/artelnatif/nicko/gui/MainGUI.java

@@ -14,18 +14,16 @@ import org.bukkit.entity.Player;
 public class MainGUI {
     private final Player player;
     private final GUI gui;
-    private final String structure = """
+    private final String[] structure = new String[]{
-            # # # # # # # # #
+            "# # # # # # # # #",
-            # % % % % % % % #
+            "# % % % A % % % #",
-            # % # R S P # % #
+            "# % # R S P # % #",
-            # % % % A % % % #
+            "# % % % % % % % #",
-            E # # # # # # # #
+            "E # # # # # # # #"};
-            """;
 
     public MainGUI(Player player) {
         if (!player.hasPermission("nicko.admin") || !player.isOp()) {
-            final String[] rows = structure.split("\n");
+            structure[3] = structure[3].replace("A", "#");
-            rows[3] = rows[3].replace("A", "#");
         }
 
         this.gui = new GUIBuilder<>(GUIType.NORMAL)

nicko-core/src/main/java/net/artelnatif/nicko/gui/items/admin/SkinInvalidatorItem.java

@@ -0,0 +1,4 @@
+package net.artelnatif.nicko.gui.items.admin;
+
+public class SkinInvalidatorItem {
+}

nicko-core/src/main/java/net/artelnatif/nicko/gui/items/main/AdminItem.java

@@ -3,17 +3,21 @@ package net.artelnatif.nicko.gui.items.main;
 import de.studiocode.invui.item.ItemProvider;
 import de.studiocode.invui.item.builder.ItemBuilder;
 import de.studiocode.invui.item.impl.BaseItem;
-import net.artelnatif.nicko.gui.AdminPanelGUI;
+import net.artelnatif.nicko.gui.sub.AdminPanelGUI;
 import org.bukkit.Material;
+import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.ClickType;
 import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.inventory.ItemFlag;
 import org.jetbrains.annotations.NotNull;
 
 public class AdminItem extends BaseItem {
     @Override
     public ItemProvider getItemProvider() {
-        final ItemBuilder builder = new ItemBuilder(Material.REDSTONE_TORCH);
+        final ItemBuilder builder = new ItemBuilder(Material.COMMAND_BLOCK);
+        builder.addEnchantment(Enchantment.DAMAGE_ALL, 1, false);
+        builder.addItemFlags(ItemFlag.HIDE_ENCHANTS);
         builder.setDisplayName("§cAdministration panel...");
         builder.addLoreLines("§7Access the administration panel.");
         return builder;

nicko-core/src/main/java/net/artelnatif/nicko/gui/items/main/SettingsItem.java

@@ -3,7 +3,7 @@ package net.artelnatif.nicko.gui.items.main;
 import de.studiocode.invui.item.ItemProvider;
 import de.studiocode.invui.item.builder.ItemBuilder;
 import de.studiocode.invui.item.impl.BaseItem;
-import net.artelnatif.nicko.gui.SettingsGUI;
+import net.artelnatif.nicko.gui.sub.SettingsGUI;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.ClickType;

nicko-core/src/main/java/net/artelnatif/nicko/gui/items/main/SkinItem.java

@@ -3,7 +3,7 @@ package net.artelnatif.nicko.gui.items.main;
 import de.studiocode.invui.item.ItemProvider;
 import de.studiocode.invui.item.builder.ItemBuilder;
 import de.studiocode.invui.item.impl.BaseItem;
-import net.artelnatif.nicko.gui.AppearanceGUI;
+import net.artelnatif.nicko.gui.sub.AppearanceGUI;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.ClickType;

nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/AdminPanelGUI.java

@@ -11,11 +11,11 @@ import org.bukkit.entity.Player;
 public class AdminPanelGUI {
     private final Player player;
     private final GUI gui;
-    private final String structure = """
+    private final String[] structure = new String[]{
-            # # # # # # # # #
+            "# # # # # # # # #",
-            # % % X X X % % #
+            "# % % X X X % % #",
-            B # # # # # # # #
+            "B # # # # # # # #"
-            """;
+    };
 
     public AdminPanelGUI(Player player) {
         this.gui = new GUIBuilder<>(GUIType.NORMAL)

nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/AppearanceGUI.java

@@ -15,13 +15,12 @@ import org.bukkit.entity.Player;
 public class AppearanceGUI {
     private final Player player;
     private final GUI gui;
-    private final String structure = """
+    private final String[] structure = new String[]{
-            # # # # # # # # #
+            "# # # # # # # # #",
-            # % % % % % % % #
+            "# % % % % % % % #",
-            # % # N A S # % #
+            "# % # N A S # % #",
-            # % % % % % % % #
+            "# % % % % % % % #",
-            B # # # # # # # #
+            "B # # # # # # # #"};
-            """;
 
     public AppearanceGUI(Player player) {
         this.gui = new GUIBuilder<>(GUIType.NORMAL)

nicko-core/src/main/java/net/artelnatif/nicko/gui/sub/SettingsGUI.java

@@ -14,16 +14,15 @@ import org.bukkit.entity.Player;
 public class SettingsGUI {
     private final Player player;
     private final GUI gui;
-    private final String structure = """
+    private final String[] structure = new String[]{
-            # # # # # # # # #
+            "# # # # # # # # #",
-            # % % L # T % % #
+            "# % % L # T % % #",
-            B # # # # # # # #
+            "B # # # # # # # #"
-            """;
+    };
 
     public SettingsGUI(Player player) {
         if (!NickoBukkit.getInstance().getNickoConfig().isBungeecordSupport()) {
-            final String[] rows = structure.split("\n");
+            structure[1] = structure[1].replace("T", "#");
-            rows[1] = rows[1].replace("T", "#");
         }
 
         this.gui = new GUIBuilder<>(GUIType.NORMAL)