Adds a reload command

src/main/java/net/knarcraft/dropper/Dropper.java

@@ -10,6 +10,7 @@ import net.knarcraft.dropper.command.JoinArenaCommand;
 import net.knarcraft.dropper.command.JoinArenaTabCompleter;
 import net.knarcraft.dropper.command.LeaveArenaCommand;
 import net.knarcraft.dropper.command.ListArenaCommand;
+import net.knarcraft.dropper.command.ReloadCommand;
 import net.knarcraft.dropper.command.RemoveArenaCommand;
 import net.knarcraft.dropper.command.RemoveArenaTabCompleter;
 import net.knarcraft.dropper.container.SerializableMaterial;
@@ -65,6 +66,14 @@ public final class Dropper extends JavaPlugin {
         return this.playerRegistry;
     }
 
+    /**
+     * Reloads all configurations and data from disk
+     */
+    public void reload() {
+        // Load all arenas again
+        this.arenaHandler.loadArenas();
+    }
+
     @Override
     public void onLoad() {
         super.onLoad();
@@ -97,6 +106,7 @@ public final class Dropper extends JavaPlugin {
         pluginManager.registerEvents(new MoveListener(), this);
         pluginManager.registerEvents(new PlayerLeaveListener(), this);
 
+        registerCommand("dropperreload", new ReloadCommand(), null);
         registerCommand("droppercreate", new CreateArenaCommand(), null);
         registerCommand("dropperlist", new ListArenaCommand(), null);
         registerCommand("dropperjoin", new JoinArenaCommand(), new JoinArenaTabCompleter());

src/main/java/net/knarcraft/dropper/command/ReloadCommand.java

@@ -0,0 +1,33 @@
+package net.knarcraft.dropper.command;
+
+import net.knarcraft.dropper.Dropper;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The command for reloading the plugin
+ */
+public class ReloadCommand implements TabExecutor {
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s,
+                             @NotNull String[] arguments) {
+        Dropper.getInstance().reload();
+        commandSender.sendMessage("Plugin reloaded!");
+        return true;
+    }
+
+    @Nullable
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s,
+                                      @NotNull String[] arguments) {
+        return new ArrayList<>();
+    }
+
+}

src/main/resources/plugin.yml

@@ -5,6 +5,12 @@ api-version: 1.19
 description: A plugin for dropper mini-games
 
 commands:
+  dropperreload:
+    aliases:
+      - dreload
+    permission: dropper.admin
+    usage: /<command>
+    description: Reloads all data from disk
   dropperlist:
     aliases:
       - dlist