respawn the entity if display content changes

src/main/java/me/youhavetrouble/notjustnameplates/NJNConfig.java

@@ -6,6 +6,8 @@ import org.bukkit.Color;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.entity.Display;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionDefault;
 
 import javax.annotation.Nullable;
 import java.util.HashMap;
@@ -20,6 +22,13 @@ public class NJNConfig {
 
     protected NJNConfig(NotJustNameplates plugin) {
         this.plugin = plugin;
+
+        plugin.getServer().getPluginManager().getPermissions().forEach(permission -> {
+            if (permission.getName().startsWith("notjustnameplates.display.")) {
+                plugin.getServer().getPluginManager().removePermission(permission);
+            }
+        });
+
         plugin.saveDefaultConfig();
         plugin.reloadConfig();
 
@@ -86,6 +95,8 @@ public class NJNConfig {
             String backgroundColor = frameSection.getString("background");
             displayContent.addFrame(new DisplayFrame(text, colorFromHex(backgroundColor)));
         });
+        Permission permission = new Permission("notjustnameplates.display." + displayContentSection.getName(), "Allows player to use " + displayContentSection.getName() + " nameplate", PermissionDefault.FALSE);
+        plugin.getServer().getPluginManager().addPermission(permission);
         return displayContent;
     }
 

src/main/java/me/youhavetrouble/notjustnameplates/NotJustNameplates.java

@@ -46,6 +46,17 @@ public final class NotJustNameplates extends JavaPlugin {
             });
 
             if (time % 20 != 0) return;
+            updateNameplatesBasedOnPermission();
+        }, 1, 1);
+    }
+
+    public void reloadPluginConfig() {
+        config = new NJNConfig(this);
+        nameplateManager.reloadNameplates();
+        updateNameplatesBasedOnPermission();
+    }
+
+    private void updateNameplatesBasedOnPermission() {
         nameplateManager.getNameplates().forEach(((uuid, nameplate) -> {
             Player player = Bukkit.getPlayer(uuid);
             if (player == null || !player.isOnline()) return;
@@ -59,13 +70,6 @@ public final class NotJustNameplates extends JavaPlugin {
             }
             nameplate.setContent(config.getDisplayContent("default"));
         }));
-
-        }, 1, 1);
-    }
-
-    public void reloadPluginConfig() {
-        config = new NJNConfig(this);
-        nameplateManager.reloadNameplates();
     }
 
     public TeamManager getTeamManager() {

src/main/java/me/youhavetrouble/notjustnameplates/nameplates/Nameplate.java

@@ -81,7 +81,9 @@ public class Nameplate {
     }
 
     public void setContent(@NotNull DisplayContent content) {
+        if (this.content == content) return;
         this.content = content;
+        Bukkit.getScheduler().runTask(NotJustNameplates.getInstance(), this::remove);
     }
 
     public void setAlignment(@NotNull TextDisplay.TextAlignment alignment) {