Reset World on command

So I want a command, that resets my world on a command. For example I type the command "reset" all players get kicked and the world called "world" gets deleted and a new world called "world" gets created.

 

How far back do you plan on making this be able to be used? You could use Bukkit.unloadWorld and set the boolean parameter to false, where it would not save the world.

 

Could you give me an exmaple please? I´m not quiet sure what you mean.

 

@MiBB3L
- Teleport all the players in the world into another world.
- Use Bukkit#unloadWorld for unload the world
- Remove the world
- wait some seconds then recreate the world, set the spawn

A world can take some times to remove, be sure the method unloadWorld return true and the world folder has been removed.

If tyou want the same world, use the seed for recreate the world

 

Could you please tell me how to unload, remove and create a world? I have no idea how to do that.

 

@MiBB3L I've never tried this before but, i'd imagine something like this should work:

Code:Java

World world = ...; // The world you want to reset
String worldName = world.getName(); // The world name
long worldSeed = world.getSeed(); // The world seed
 
if (!Bukkit.unloadWorld(world, false)) return; // unload the world, return if not successful
 
File worldFolder = new File(plugin.getDataFolder().getParentFile().getParentFile(), worldName); // World folder
worldFolder.delete(); // Delete world folder
 
Bukkit.createWorld(new WorldCreator(worldName).seed(worldSeed)); // Create the world

 

Thank you for you effort! This is my full Command Class. I get an error on "File worldFolder = new File(plugin.getDataFolder().getParentFile().getParentFile(), worldName);" It can´t find "plugin". I also had to change your "return" after unload world to "return false".

Code:

public class ResetCommand implements CommandExecutor{

    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        Player p = (Player) sender;
   

            FileConfiguration config = main.getPlugin().getConfig();
            World worldtp = Bukkit.getWorld(config.getString("Spawn.World"));
            double x = config.getDouble("Spawn.X");
            double y = config.getDouble("Spawn.Y");
            double z = config.getDouble("Spawn.Z");
            float yaw = (float) config.getDouble("Spawn.Yaw");
            float pitch = (float) config.getDouble("Spawn.Pitch");
            Location location = new Location(worldtp, x, y, z, yaw, pitch);
            World world = p.getWorld(); // The world you want to reset
            for(Player player : Bukkit.getOnlinePlayers()){
                player.teleport(location);
            }
           
            String worldName = world.getName(); // The world name
            
            if (!Bukkit.unloadWorld(world, false)) return false; // unload the world, return if not successful
            
            File worldFolder = new File(plugin.getDataFolder().getParentFile().getParentFile(), worldName); // World folder
            worldFolder.delete(); // Delete world folder
            
            Bukkit.createWorld(new WorldCreator(worldName)); // Create the world
       
        return false;
    }
   
   
}

 

@MiBB3L The "return" was more of a "return something, or nothing if void" kind of example.

'plugin' is your main class (the one that extends JavaPlugin) instance, you can pass it through the command class' constructor.

 

What is wrong?
This is my error:
null
org.bukkit.command.CommandException: Unhandled exception executing command 'reset' in plugin MiBB3L_Funny v1.0
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1162) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:997) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-db6de12-18fbb24]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_241]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_241]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot.jar:git-Spigot-db6de12-18fbb24]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
Caused by: java.lang.Error: Unresolved compilation problem:
plugin cannot be resolved

at me.MiBB3L.funny.ResetCommand.onCommand(ResetCommand.java:42) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
... 15 more


This is my code:

Code:

package me.MiBB3L.funny;

import java.io.File;

import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.WorldCreator;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;



public class ResetCommand implements CommandExecutor{

    private main plugin;
    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        Player p = (Player) sender;
      
      

            FileConfiguration config = main.getPlugin().getConfig();
            World worldtp = Bukkit.getWorld(config.getString("Spawn.World"));
            double x = config.getDouble("Spawn.X");
            double y = config.getDouble("Spawn.Y");
            double z = config.getDouble("Spawn.Z");
            float yaw = (float) config.getDouble("Spawn.Yaw");
            float pitch = (float) config.getDouble("Spawn.Pitch");
            Location location = new Location(worldtp, x, y, z, yaw, pitch);
            World world = p.getWorld(); // The world you want to reset
            for(Player player : Bukkit.getOnlinePlayers()){
                player.teleport(location);
            }
          
            String worldName = world.getName(); // The world name
           
            if (!Bukkit.unloadWorld(world, false)) return false;  // unload the world, return if not successful
           
            File worldFolder = new File(plugin.getDataFolder().getParentFile().getParentFile(), worldName); // World folder
            worldFolder.delete(); // Delete world folder
           
            Bukkit.createWorld(new WorldCreator(worldName)); // Create the world
      
        return false;
    }
  
  
}

 

@MiBB3L Please follow the Java naming conventions. Anyway, you have a static method 'getPlugin()' to get your main class instance.