Move Plex to API-driven plugin and fix NoClassDefFoundError on startup

server/src/main/java/dev/plex/command/impl/CreativeCMD.java

@@ -0,0 +1,70 @@
+package dev.plex.command.impl;
+
+import com.google.common.collect.ImmutableList;
+import dev.plex.command.PlexCommand;
+import dev.plex.command.annotation.CommandParameters;
+import dev.plex.command.annotation.CommandPermissions;
+import dev.plex.command.exception.CommandFailException;
+import dev.plex.command.source.RequiredCommandSource;
+import dev.plex.api.event.GameModeUpdateEvent;
+import dev.plex.rank.enums.Rank;
+import dev.plex.util.PlexUtils;
+import java.util.List;
+import net.kyori.adventure.text.Component;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+@CommandPermissions(level = Rank.OP, permission = "plex.gamemode.creative", source = RequiredCommandSource.ANY)
+@CommandParameters(name = "creative", aliases = "gmc", description = "Set your own or another player's gamemode to creative mode")
+public class CreativeCMD extends PlexCommand
+{
+    @Override
+    protected Component execute(@NotNull CommandSender sender, @Nullable Player playerSender, String[] args)
+    {
+        if (args.length == 0)
+        {
+            if (isConsole(sender))
+            {
+                throw new CommandFailException(PlexUtils.messageString("consoleMustDefinePlayer"));
+            }
+            if (!(playerSender == null))
+            {
+                Bukkit.getServer().getPluginManager().callEvent(new GameModeUpdateEvent(sender, playerSender.getPlayer(), GameMode.CREATIVE));
+            }
+            return null;
+        }
+
+        if (checkRank(sender, Rank.ADMIN, "plex.gamemode.creative.others"))
+        {
+            if (args[0].equals("-a"))
+            {
+                for (Player targetPlayer : Bukkit.getServer().getOnlinePlayers())
+                {
+                    targetPlayer.setGameMode(GameMode.CREATIVE);
+                    messageComponent("gameModeSetTo", "creative");
+                }
+                PlexUtils.broadcast(messageComponent("setEveryoneGameMode", sender.getName(), "creative"));
+                return null;
+            }
+
+            Player nPlayer = getNonNullPlayer(args[0]);
+            Bukkit.getServer().getPluginManager().callEvent(new GameModeUpdateEvent(sender, nPlayer, GameMode.CREATIVE));
+            return null;
+        }
+        return null;
+    }
+
+    @Override
+    public @NotNull List<String> tabComplete(@NotNull CommandSender sender, @NotNull String alias, @NotNull String[] args) throws IllegalArgumentException
+    {
+        if (checkTab(sender, Rank.ADMIN, "plex.gamemode.creative.others"))
+        {
+            return PlexUtils.getPlayerNameList();
+        }
+        return ImmutableList.of();
+    }
+}