[SOLVED]World Builder

Cleardragonf · December 4, 2015, 6:07am

K so what i’m trying to do is create a new world using a command…just basic all predetermined in the code like every single one is in the overworld…any one willing to help is amazing… thank you

lucdon · December 4, 2015, 9:21am

it is possible to create a world by using the world builder class like this:

public World generateWorld(String name) {
    WorldBuilder builder = this.game.getRegistry().createBuilder(WorldBuilder.class);
    builder.dimensionType(DimensionTypes.OVERWORLD);
    builder.name(name);
    builder.enabled(true);
    builder.hardcore(false);
    builder.keepsSpawnLoaded(true);
    builder.loadsOnStartup(true);
    builder.usesMapFeatures(false);
    builder.generator(GeneratorTypes.DEFAULT);
    Optional<World> optWorld = builder.build();
    if (optWorld.isPresent()) {
        return (optWorld.get());
    }
    return null;
}

Cleardragonf · December 4, 2015, 10:14pm

ok so i see that that would work on it’s own…but how would i get it to tie in with a command? thjis is what i have in a CreateWorld class seperate from the mainClass.

> public class CreateWorld implements CommandExecutor {
>     private Game game;
>     private String name;
>     public CommandResult execute(CommandSource src, CommandContext args) throws CommandException {
>             WorldBuilder builder = this.game.getRegistry().createBuilder(WorldBuilder.class);
>             builder.dimensionType(DimensionTypes.OVERWORLD);
>             builder.name(name);
>             builder.enabled(true);
>             builder.hardcore(false);
>             builder.keepsSpawnLoaded(true);
>             builder.loadsOnStartup(true);
>             builder.usesMapFeatures(false);
>             builder.generator(GeneratorTypes.DEFAULT);
>             Optional<World> optWorld = builder.build();
>             if (optWorld.isPresent()) {
>                 return (optWorld.get());
>             }
>             return null;
>         return null;
>     }

}

Cleardragonf · December 4, 2015, 10:19pm

however i want it to work whenever t;his code is called from the main class any help is awesome as always

Cleardragonf · December 4, 2015, 10:45pm

ok…so i figured if i make a new command and then using the command class that handles it to call a new instance of the world creation it would make a new world… but after i type /mv name i get this in the server logs

[16:42:05] [Server thread/FATAL] [FML/]: Exception caught executing FutureTask: java.util.concurrent.ExecutionException: java.lang.NullPointerException
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_65]
	at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_65]
	at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:715) [FMLCommonHandler.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:656) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:364) [po.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478) [MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_65]
Caused by: java.lang.NullPointerException
	at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:81) ~[cl.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:812) ~[rj.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:791) ~[rj.class:?]
	at net.minecraft.network.play.client.C01PacketChatMessage.func_180757_a(SourceFile:37) ~[lu.class:?]
	at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(SourceFile:9) ~[lu.class:?]
	at net.minecraft.network.PacketThreadUtil$1.onProcessPacket(SourceFile:63) ~[ih.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) ~[ih.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_65]
	at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_65]
	at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:714) ~[FMLCommonHandler.class:?]
	... 5 more

any and all help with getting this to work correctely would be awesome

simon816 · December 4, 2015, 10:48pm

You’re returning null in execute which breaks it’s non-null contract.
You need to return an instanceof CommandResult, for example CommandResult.success();

Cleardragonf · December 4, 2015, 11:07pm

Hmmm ok well in eclipse there are no errors on it…however now i’m having other issues…here’s what i have so far

MainClass.java
> package me.Cleardragonf.Multiverse;

> import org.spongepowered.api.event.game.state.GamePreInitializationEvent;

> import org.spongepowered.api.service.config.ConfigDir;
> import org.spongepowered.api.event.network.ClientConnectionEvent.Join;
> import org.spongepowered.api.event.game.state.GameInitializationEvent;

> import java.io.File;

> import ninja.leaping.configurate.commented.CommentedConfigurationNode;
> import ninja.leaping.configurate.loader.ConfigurationLoader;
> import org.spongepowered.api.service.config.DefaultConfig;
> import com.google.inject.Inject;
> import org.spongepowered.api.util.command.spec.CommandSpec;
> import org.spongepowered.api.text.Texts;
> import org.spongepowered.api.event.Listener;
> import org.spongepowered.api.plugin.Plugin;

> @Plugin(id = "ManyVerse", name = "ManyVerse", version = "0.0.1")
> public class MainClass {

>     @Inject @ConfigDir(sharedRoot = false) private File configDir;

>     // this is where the file is located
>     @Inject @DefaultConfig(sharedRoot = false) private File configFile;

>     // this loads the default config
>     @Inject @DefaultConfig(sharedRoot = false) private ConfigurationLoader<CommentedConfigurationNode> configManager;

>     @Listener
>     public void onGamePreInitializationEvent(GamePreInitializationEvent e) {
>         if (!configDir.exists())
>             configDir.mkdir();
>         if (!configFile.exists())
>             ;

>         ConfigManager.getInstance().setup(configFile, configManager);
>     }

>     @Listener
>     public void onGameInitializationEvent(GameInitializationEvent e) {
>         CommandSpec mv = CommandSpec.builder()
>                 .executor(new CreateWorld())
>                 .build();

>         e.getGame().getCommandDispatcher().register(this, mv, "mv", "ManyVerse", "manyverse");
>     }

>     @Listener
>     public void ClientConnectionEvent(Join e) {
>         e.getTargetEntity().sendMessage(Texts.of(ConfigManager.getInstance().getConfig().getNode("MOTD").getString()));
>     }
> }

CreateWorld.java

package me.Cleardragonf.Multiverse;


import java.util.Optional;

import org.spongepowered.api.world.World;
import org.spongepowered.api.world.GeneratorTypes;
import org.spongepowered.api.world.DimensionTypes;
import org.spongepowered.api.world.WorldBuilder;
import org.spongepowered.api.Game;
import org.spongepowered.api.util.command.CommandException;
import org.spongepowered.api.util.command.CommandResult;
import org.spongepowered.api.util.command.CommandSource;
import org.spongepowered.api.util.command.args.CommandContext;
import org.spongepowered.api.util.command.spec.CommandExecutor;


public class CreateWorld implements CommandExecutor {

private Game game;
private String name;
public CommandResult execute(CommandSource src, CommandContext args) throws CommandException {
WorldBuilder builder = this.game.getRegistry().createBuilder(WorldBuilder.class);
builder.dimensionType(DimensionTypes.OVERWORLD);
builder.name(name);
builder.hardcore(false);
builder.keepsSpawnLoaded(true);
builder.loadsOnStartup(true);
builder.usesMapFeatures(false);
builder.generator(GeneratorTypes.DEFAULT);
Optional optWorld = builder.build();
if (optWorld.isPresent()) {
return (CommandResult) (optWorld.get());
}
return CommandResult.success();
}
}

and finally there is a config manager but that’s not important can someone point out why i’m still getting issues?

lucdon · December 4, 2015, 11:13pm

the problem is with the name: you need to make it an argument:

onEnableMethod

createWorldCommand

simon816 · December 4, 2015, 11:35pm

You can’t just say a world object is a command result. Doesn’t make sense to return the world there

Cleardragonf · December 5, 2015, 2:09am

ok so I’ve gotten all of it to play nice…however i’m getting this now that the world creation is an arguement like lucdon suggested and now when i type create Test the server comes up with the following nomethod

[20:05:48] [Server thread/ERROR] [Sponge/]: Error occurred while executing command 'create Test' for source EntityPlayerMP['Cleardragonf'/320, l='world', x=55.00, y=117.00, z=153.00]: org.spongepowered.api.GameRegistry.createBuilder(Ljava/lang/Class;)Lorg/spongepowered/api/util/ResettableBuilder;
java.lang.NoSuchMethodError: org.spongepowered.api.GameRegistry.createBuilder(Ljava/lang/Class;)Lorg/spongepowered/api/util/ResettableBuilder;
	at me.Cleardragonf.ManyVerse.WorldCreation.execute(WorldCreation.java:30) ~[WorldCreation.class:?]
	at org.spongepowered.api.util.command.spec.CommandSpec.process(CommandSpec.java:334) ~[CommandSpec.class:1.8-1521-2.1DEV-726+spongeproject-ci-b726.git-bd07085cf983e5024b395e249c647f6465c1295c]
	at org.spongepowered.api.util.command.dispatcher.SimpleDispatcher.process(SimpleDispatcher.java:340) ~[SimpleDispatcher.class:1.8-1521-2.1DEV-726+spongeproject-ci-b726.git-bd07085cf983e5024b395e249c647f6465c1295c]
	at org.spongepowered.api.service.command.SimpleCommandService.process(SimpleCommandService.java:250) [SimpleCommandService.class:1.8-1521-2.1DEV-726+spongeproject-ci-b726.git-bd07085cf983e5024b395e249c647f6465c1295c]
	at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:80) [cl.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:812) [rj.class:?]
	at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:791) [rj.class:?]
	at net.minecraft.network.play.client.C01PacketChatMessage.func_180757_a(SourceFile:37) [lu.class:?]
	at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(SourceFile:9) [lu.class:?]
	at net.minecraft.network.PacketThreadUtil$1.onProcessPacket(SourceFile:53) [ih.class:?]
	at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [ih.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_65]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_65]
	at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:714) [FMLCommonHandler.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:656) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:364) [po.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478) [MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_65]
[20:06:16] [Server thread/DEBUG] [mixin/]: Mixing text.MixinTextPlaceholder from mixins.common.api.json into org.spongepowered.api.text.Text$Placeholder

Cleardragonf · December 5, 2015, 2:11am

ok but that doesn’t tell me what i need to do to make this work…I understand it doesn’t make sense and i understand that sponge is still being developed as i’ve already made several plugins for my hopefully future server all on sponge…but I do still need some help being a novice as such

simon816 · December 5, 2015, 4:40am

Build 726 is an old build which is why it’s failing. Get the latest version from files.minecraftforge.net/spongepowered

Cleardragonf · December 5, 2015, 5:15am

Yes! OMG YES!!! Now I just need to figure out a way to teleport between the two!!! or make a portal… but i’ll take either! thank you I’ll open up another Forum for that I hope these notes will help others Just as you all have helped me on this!!!