Add slime world support for per player worlds

Move package to dev.plex.extras to prevent any possible conflicts with main plugin

src/main/java/dev/plex/extras/command/AutoTeleportCommand.java

@@ -0,0 +1,57 @@
+package dev.plex.extras.command;
+
+import dev.plex.extras.TFMExtras;
+import dev.plex.cache.DataUtils;
+import dev.plex.command.PlexCommand;
+import dev.plex.command.annotation.CommandParameters;
+import dev.plex.command.annotation.CommandPermissions;
+import dev.plex.command.exception.PlayerNotFoundException;
+import dev.plex.player.PlexPlayer;
+import dev.plex.rank.enums.Rank;
+import net.kyori.adventure.text.Component;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+@CommandParameters(name = "autoteleport", description = "If a player is specified, it will toggle whether or not the player is automatically teleported when they join. If no player is specified, you will be randomly teleported", usage = "/<command> [player]", aliases = "autotp,rtp,randomtp,tpr")
+@CommandPermissions(level = Rank.OP, permission = "plex.tfmextras.autotp")
+public class AutoTeleportCommand extends PlexCommand
+{
+    @Override
+    protected Component execute(@NotNull CommandSender sender, @Nullable Player player, @NotNull String[] args)
+    {
+        if (args.length == 0)
+        {
+            if (sender instanceof ConsoleCommandSender)
+            {
+                return usage();
+            }
+            player.teleportAsync(TFMExtras.getRandomLocation(player.getWorld()));
+            return null;
+        }
+        checkRank(sender, Rank.ADMIN, "plex.tfmextras.autotp.other");
+        PlexPlayer target = DataUtils.getPlayer(args[0]);
+        if (target == null)
+        {
+            throw new PlayerNotFoundException();
+        }
+        List<String> names = TFMExtras.getModule().getConfig().getStringList("server.teleport-on-join");
+        boolean isEnabled = names.contains(target.getName());
+        if (!isEnabled)
+        {
+            names.add(target.getName());
+        }
+        else
+        {
+            names.remove(target.getName());
+        }
+        TFMExtras.getModule().getConfig().set("server.teleport-on-join", names);
+        TFMExtras.getModule().getConfig().save();
+        isEnabled = !isEnabled;
+        return messageComponent("modifiedAutoTeleport", target.getName(), isEnabled ? "now" : "no longer");
+    }
+}