[SOLVED][1.8.9 ] Teleportation from a packet handler

[heero]

Hi,

 

What I want : Teleport the player when I hit the H key.

What I get : That work, but I get some strange warnings

 

My warnings :

00:34:37] [Client thread/INFO]: [CHAT] Player447 has just earned the achievement [Taking Inventory]
[00:34:43] [Netty Server IO #1/WARN]: ****************************************
[00:34:43] [Netty Server IO #1/WARN]: * There is an attempt to load a chunk (4,-1) in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager$PlayerInstance.<init>(PlayerManager.java:395)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager.getPlayerInstance(PlayerManager.java:106)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager.addPlayer(PlayerManager.java:150)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.ServerConfigurationManager.preparePlayer(ServerConfigurationManager.java:269)...
[00:34:43] [Netty Server IO #1/WARN]: ****************************************
[00:34:43] [server thread/WARN]: ****************************************
[00:34:43] [server thread/WARN]: * There is an attempt to load a chunk (-5,6) in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:43] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:43] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:43] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:99)
[00:34:43] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:200)
[00:34:43] [server thread/WARN]: *  at net.minecraft.world.World.getChunkFromChunkCoords(World.java:336)
[00:34:43] [server thread/WARN]: *  at net.minecraft.world.World.getChunkFromBlockCoords(World.java:328)...
[00:34:43] [server thread/WARN]: ****************************************
[00:34:43] [Netty Server IO #1/WARN]: ****************************************
[00:34:43] [Netty Server IO #1/WARN]: * There is an attempt to load a chunk (8,0) in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager$PlayerInstance.<init>(PlayerManager.java:395)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager.getPlayerInstance(PlayerManager.java:106)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager.addPlayer(PlayerManager.java:150)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.ServerConfigurationManager.preparePlayer(ServerConfigurationManager.java:269)...
[00:34:43] [Netty Server IO #1/WARN]: ****************************************
[00:34:43] [Netty Server IO #1/WARN]: ****************************************
[00:34:43] [Netty Server IO #1/WARN]: * There is an attempt to load a chunk (-2,- in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager$PlayerInstance.<init>(PlayerManager.java:395)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager.getPlayerInstance(PlayerManager.java:106)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.PlayerManager.addPlayer(PlayerManager.java:150)
[00:34:43] [Netty Server IO #1/WARN]: *  at net.minecraft.server.management.ServerConfigurationManager.preparePlayer(ServerConfigurationManager.java:269)...
[00:34:43] [Netty Server IO #1/WARN]: ****************************************
[00:34:44] [server thread/WARN]: ****************************************
[00:34:44] [server thread/WARN]: * There is an attempt to load a chunk (-10,4) in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:99)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:200)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.World.getChunkFromChunkCoords(World.java:336)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.WorldServer.updateBlocks(WorldServer.java:376)...
[00:34:44] [server thread/WARN]: ****************************************
[00:34:44] [server thread/WARN]: ****************************************
[00:34:44] [server thread/WARN]: * There is an attempt to load a chunk (-1,-12) in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:99)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:200)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.World.getChunkFromChunkCoords(World.java:336)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.WorldServer.updateBlocks(WorldServer.java:376)...
[00:34:44] [server thread/WARN]: ****************************************
[00:34:44] [server thread/WARN]: ****************************************
[00:34:44] [server thread/WARN]: * There is an attempt to load a chunk (-8,12) in di    >mension 3 that is already being loaded. This will cause weird chunk breakages.
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:152)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:129)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:99)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:200)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.World.getChunkFromChunkCoords(World.java:336)
[00:34:44] [server thread/WARN]: *  at net.minecraft.world.WorldServer.updateBlocks(WorldServer.java:376)...
[00:34:44] [server thread/WARN]: ****************************************

My code :

// ExampleMod
@Mod(modid = ExampleMod.MODID, version = ExampleMod.VERSION)
public class ExampleMod {
    public static final String MODID = "examplemod";
    public static final String VERSION = "1.0";
    public static final SimpleNetworkWrapper packetPipeline = NetworkRegistry.INSTANCE.newSimpleChannel("test");

    @EventHandler
    public void preInit(FMLPreInitializationEvent event) {
        GameRegistry.registerItem(new ItemTest().setCreativeTab(CreativeTabs.tabMisc).setUnlocalizedName("item_test"), "item_test");

        GameRegistry.registerWorldGenerator(new WorldGeneratorTest(), 0);
        DimensionManager.registerProviderType(3, WorldProviderSurface.class, false);
        DimensionManager.registerDimension(3, 3);

        packetPipeline.registerMessage(HandlerTeleportation.class, PacketTeleportation.class, 0, Side.SERVER);
    }

    private class WorldGeneratorTest implements IWorldGenerator {
        @Override
        public void generate(Random random, int chunkX, int chunkZ, World world, IChunkProvider chunkGenerator, IChunkProvider chunkProvider) {
        }
    }

    public class ItemTest extends Item {
        @Override
        public ItemStack onItemRightClick(ItemStack itemStackIn, World worldIn, EntityPlayer playerIn) {
            if (!worldIn.isRemote) {
                return itemStackIn;
            }

            packetPipeline.sendToServer(new PacketTeleportation());

            return itemStackIn;
        }
    }
}


// HandlerTeleportation
public class HandlerTeleportation implements IMessageHandler<PacketTeleportation, IMessage> {
    @Override
    public IMessage onMessage(PacketTeleportation message, MessageContext ctx) {
        EntityPlayerMP player = ctx.getServerHandler().playerEntity;

        player.mcServer.getConfigurationManager().transferPlayerToDimension(player, 3, new TeleporterTest(MinecraftServer.getServer().worldServerForDimension(3)));
        return null;
    }
}

// PacketTeleportation
public class PacketTeleportation implements IMessage {
    @Override
    public void fromBytes(ByteBuf buffer) {
    }

    @Override
    public void toBytes(ByteBuf buffer) {
    }
}

// TeleporterTest
public class TeleporterTest extends Teleporter {
    public TeleporterTest(WorldServer par1WorldServer) {
        super(par1WorldServer);
    }

    @Override
    public void placeInPortal(Entity entity, float rotationYaw) {
        entity.setPositionAndUpdate(0, 100, 0);
    }

    @Override
    public void removeStalePortalLocations(long par1) {
    }
}

 

The code doesn't show the key binding part, because it's not necesary to reproduce de bug.

If I try to teleport from the Item function itself, there is no warning.

[Choonster]

It may or may not be the source of the issue, but packet handlers are run on a separate thread where you can't safely interact with normal Minecraft classes. You need to schedule a task to run on the main thread, as explained here.

[heero]

Thx,

 

I'm upgrading my mod from 1.7.10 to 1.8.9, so yeah it's probably that.

That solved my problem!