[1.16.3] Dedicated Server Crash on Start

[jstN0body]

I can't run my mod on a dedicated server because of this? Is there any way to fix this?

java.lang.RuntimeException: Attempted to load class net/minecraft/client/renderer/entity/PlayerRenderer for invalid dist DEDICATED_SERVER
        at net.minecraftforge.fml.loading.RuntimeDistCleaner.processClassWithFlags(RuntimeDistCleaner.java:71) ~[forge.jar:34.1] {}
        at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:85) ~[modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:119) ~[modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:256) ~[modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:135) ~[modlauncher-7.0.1.jar:?] {re:classloading}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:97) ~[modlauncher-7.0.1.jar:?] {re:classloading}
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_271] {}
        at java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:1.8.0_271] {}
        at java.lang.Class.privateGetDeclaredConstructors(Unknown Source) ~[?:1.8.0_271] {}
        at java.lang.Class.getConstructor0(Unknown Source) ~[?:1.8.0_271] {}
        at java.lang.Class.getConstructor(Unknown Source) ~[?:1.8.0_271] {}
        at net.minecraftforge.eventbus.api.EventListenerHelper.computeListenerList(EventListenerHelper.java:96) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.api.EventListenerHelper.getListenerListInternal(EventListenerHelper.java:63) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.api.EventListenerHelper.getListenerList(EventListenerHelper.java:48) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.addToListeners(EventBus.java:263) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.register(EventBus.java:256) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.registerListener(EventBus.java:150) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.lambda$null$6(EventBus.java:98) ~[eventbus-3.0.3-service.jar:?] {}
        at java.util.Optional.ifPresent(Unknown Source) ~[?:1.8.0_271] {}
        at net.minecraftforge.eventbus.EventBus.lambda$registerObject$7(EventBus.java:98) ~[eventbus-3.0.3-service.jar:?] {}
        at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.Spliterators$ArraySpliterator.forEachRemaining(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[?:1.8.0_271] {}
        at java.util.stream.ReferencePipeline.forEach(Unknown Source) ~[?:1.8.0_271] {}
        at net.minecraftforge.eventbus.EventBus.registerObject(EventBus.java:94) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.register(EventBus.java:120) ~[eventbus-3.0.3-service.jar:?] {}
        at com.github.jstN0body.shrinkmod.SizeMod.<init>(SizeMod.java:58) ~[?:1.0] {re:classloading}
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_271] {}
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_271] {}
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_271] {}
        at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_271] {}
        at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_271] {}
        at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[?:34.1] {re:classloading}
        at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$5(ModContainer.java:111) ~[?:?] {re:classloading}
        at java.util.concurrent.CompletableFuture$AsyncRun.run(Unknown Source) [?:1.8.0_271] {}
        at java.util.concurrent.CompletableFuture$AsyncRun.exec(Unknown Source) [?:1.8.0_271] {}
        at java.util.concurrent.ForkJoinTask.doExec(Unknown Source) [?:1.8.0_271] {}
        at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source) [?:1.8.0_271] {}
        at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) [?:1.8.0_271] {}
        at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source) [?:1.8.0_271] {}
[m[1;31m[19:05:24] [main/FATAL] [ne.mi.fm.ModLoader/LOADING]: Failed to complete lifecycle event CONSTRUCT, 1 errors found
[m[32m[19:05:24] [main/INFO] [STDOUT/]: [net.minecraft.crash.CrashReport:func_85057_a:196]: Negative index in crash report handler (16/18)
[m[1;31m[19:05:24] [main/FATAL] [ne.mi.fm.se.ServerModLoader/]: Crash report saved to .\crash-reports\crash-2020-11-09_19.05.24-fml.txt
[m---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 11/9/20 7:05 PM
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
        at net.minecraftforge.fml.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:85) ~[?:?] {re:classloading}
        at net.minecraftforge.fml.server.ServerModLoader.load(ServerModLoader.java:51) ~[?:?] {re:classloading}
        at net.minecraft.server.Main.main(Main.java:96) ~[?:?] {re:classloading}
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_271] {}
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_271] {}
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_271] {}
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_271] {}
        at net.minecraftforge.fml.loading.FMLServerLaunchProvider.lambda$launchService$0(FMLServerLaunchProvider.java:51) ~[forge.jar:34.1] {}
        at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {}
        at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63) [forge.jar:?] {}
        at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60) [forge.jar:?] {}
        at net.minecraftforge.server.ServerMain.main(ServerMain.java:57) [forge.jar:?] {}

 

[poopoodice]

Attempted to load class net/minecraft/client/renderer/entity/PlayerRenderer for invalid dist DEDICATED_SERVER

https://mcforge.readthedocs.io/en/latest/concepts/sides/

You should also post all your code

[jstN0body]

8 minutes ago, poopoodice said:

Attempted to load class net/minecraft/client/renderer/entity/PlayerRenderer for invalid dist DEDICATED_SERVER

https://mcforge.readthedocs.io/en/latest/concepts/sides/

You should also post all your code

Currently reading the docs, here's the code of the class where I'm getting the error just in case:

@Mod(SizeMod.MODID)
public class SizeMod {
    // Directly reference a log4j logger.
    private static final Logger LOGGER = LogManager.getLogger();

    public static final String MODID = "sizemod";
    public static final String VERSION = "1.0.0";

    public static float sizePercentage = 1.0f;


    public SizeMod() {


        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
        // Register the enqueueIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::enqueueIMC);
        // Register the processIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::processIMC);
        // Register the doClientStuff method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::doClientStuff);


        // Register ourselves for server and other game events we are interested in
        MinecraftForge.EVENT_BUS.register(this);
    }

    private void setup(final FMLCommonSetupEvent event)
    {
        // some preinit code

    }

    private void doClientStuff(final FMLClientSetupEvent event) {
        // do something that can only be done on the client

    }

    private void enqueueIMC(final InterModEnqueueEvent event)
    {
        // some example code to dispatch IMC to another mod

    }

    private void processIMC(final InterModProcessEvent event)
    {
        // some example code to receive and process InterModComms from other mods

    }

    // You can use SubscribeEvent and let the Event Bus discover methods to call
    @SubscribeEvent
    public void onServerStarting(FMLServerStartingEvent event) {
        ModCommands.register(event.getServer().getCommandManager().getDispatcher());
    }

    @SubscribeEvent
    public void onSizeChange(PlayerEvent.Size event) {

        if (event.getEntity() instanceof PlayerEntity) {
            EntitySize newSize;
            switch (event.getPose()) {
                case CROUCHING:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 1.5f * sizePercentage);
                    break;

                case SWIMMING:
                case FALL_FLYING:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 0.6f * sizePercentage);
                    break;

                case SLEEPING:
                    newSize = EntitySize.fixed(0.2f * sizePercentage, 0.2f * sizePercentage);
                    break;

                default:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 1.8f * sizePercentage);
            }
            event.setNewSize(newSize);
            event.setNewEyeHeight(newSize.height * 0.9f);
        }
    }

    @SubscribeEvent
    public void preRenderPlayer(RenderPlayerEvent.Pre event) {
        event.getMatrixStack().push();
        event.getMatrixStack().scale(sizePercentage, sizePercentage, sizePercentage);
    }

    @SubscribeEvent
    public void postRenderPlayer(RenderPlayerEvent.Post event) {
        event.getMatrixStack().pop();
    }

    @SubscribeEvent
    public void onPlayerRespawn(PlayerEvent.PlayerRespawnEvent event) {
        if (!(event.getEntity() instanceof PlayerEntity)) return;

        SizeMod.sizePercentage -= 0.01;
        for (ServerPlayerEntity player : event.getPlayer().getServer().getPlayerList().getPlayers()) {
            player.setBoundingBox(AxisAlignedBB.func_241550_g_(0.6, 1.8, 0.6));
            player.sendStatusMessage(new TranslationTextComponent("Your size is now: " +
                    new DecimalFormat("0.00").format(SizeMod.sizePercentage*100) + "%"), true);
        }
    }

    int hunger;
    float saturation;
    @SubscribeEvent
    public void startPlayerEat(LivingEntityUseItemEvent.Start event) {
        if (event.getItem().isFood() && event.getEntity() instanceof PlayerEntity) {
            PlayerEntity player = (PlayerEntity) event.getEntity();
            FoodStats foodStats = player.getFoodStats();
            hunger = foodStats.getFoodLevel();
            saturation = foodStats.getSaturationLevel();
        }
    }

    @SubscribeEvent
    public void finishPlayerEat(LivingEntityUseItemEvent.Finish event) {
        if (event.getItem().isFood() && event.getEntity() instanceof PlayerEntity) {
            PlayerEntity player = (PlayerEntity) event.getEntity();
            FoodStats foodStats = player.getFoodStats();
            hunger = foodStats.getFoodLevel() - hunger;
            saturation = foodStats.getSaturationLevel() - saturation;
            hunger *= (1 - sizePercentage);
            saturation *= (1 - sizePercentage);
            foodStats.addStats(Math.round(hunger), saturation);
        }
    }

    // You can use EventBusSubscriber to automatically subscribe events on the contained class (this is subscribing to the MOD
    // Event bus for receiving Registry Events)
    @Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
    public static class RegistryEvents {
        @SubscribeEvent
        public static void onBlocksRegistry(final RegistryEvent.Register<Block> blockRegistryEvent) {
            // register a new block here

        }
    }
}

 

[poopoodice]

Afaik all rendering events are client only and that includes the two render player event you are using, you should move them to other places.

[jstN0body]

14 minutes ago, poopoodice said:

Afaik all rendering events are client only and that includes the two render player event you are using, you should move them to other places.

Sorry if I'm being dumb, but wdym "other places."

[Danebi]

Another class.

[poopoodice]

Yes, another class that is client only (means you should not have any reference to that class from server side).

[jstN0body]

Ok, I have set the render events as only client accessible, and the server starts, however, when trying to scale the player, the player shrinks for a split second and then goes back to normal.

[poopoodice]

What's the updated code?

[jstN0body]

@Mod(SizeMod.MODID)
public class SizeMod {
    // Directly reference a log4j logger.
    private static final Logger LOGGER = LogManager.getLogger();

    public static final String MODID = "sizemod";
    public static final String VERSION = "1.1.2";

    public static float sizePercentage = 1.0f;


    public SizeMod() {

        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
        // Register the enqueueIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::enqueueIMC);
        // Register the processIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::processIMC);
        // Register the doClientStuff method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::doClientStuff);

        ModLoadingContext.get().registerExtensionPoint(ExtensionPoint.DISPLAYTEST, () -> Pair.of(() -> FMLNetworkConstants.IGNORESERVERONLY, (a, b) -> true));

        // Register ourselves for server and other game events we are interested in
        MinecraftForge.EVENT_BUS.register(this);
    }

    private void setup(final FMLCommonSetupEvent event)
    {
        // some preinit code
    }

    private void doClientStuff(final FMLClientSetupEvent event) {
        // do something that can only be done on the client

    }

    private void enqueueIMC(final InterModEnqueueEvent event)
    {
        // some example code to dispatch IMC to another mod
    }

    private void processIMC(final InterModProcessEvent event)
    {
        // some example code to receive and process InterModComms from other mods
    }


    @SubscribeEvent
    public void onServerStarting(FMLServerStartingEvent event) {
        ModCommands.register(event.getServer().getCommandManager().getDispatcher());
    }


    @SubscribeEvent
    public void onSizeChange(PlayerEvent.Size event) {

        if (event.getEntity() instanceof PlayerEntity) {
            EntitySize newSize;
            switch (event.getPose()) {
                case CROUCHING:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 1.5f * sizePercentage);
                    break;

                case SWIMMING:
                case FALL_FLYING:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 0.6f * sizePercentage);
                    break;

                case SLEEPING:
                    newSize = EntitySize.fixed(0.2f * sizePercentage, 0.2f * sizePercentage);
                    break;

                default:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 1.8f * sizePercentage);
            }
            event.setNewSize(newSize);
            event.setNewEyeHeight(newSize.height * 0.9f);
        }
    }

    @OnlyIn(Dist.CLIENT)
    @SubscribeEvent
    public void preRenderPlayer(RenderPlayerEvent.Pre event) {
        event.getMatrixStack().push();
        event.getMatrixStack().scale(sizePercentage, sizePercentage, sizePercentage);
    }

    @OnlyIn(Dist.CLIENT)
    @SubscribeEvent
    public void postRenderPlayer(RenderPlayerEvent.Post event) {
        event.getMatrixStack().pop();
    }


    @SubscribeEvent
    public void onPlayerRespawn(PlayerEvent.PlayerRespawnEvent event) {
        if (!(event.getEntity() instanceof PlayerEntity)) return;

        SizeMod.sizePercentage -= 0.01;
        for (ServerPlayerEntity player : event.getPlayer().getServer().getPlayerList().getPlayers()) {
            player.setBoundingBox(AxisAlignedBB.func_241550_g_(0.6, 1.8, 0.6));
            player.sendStatusMessage(new TranslationTextComponent("Your size is now: " +
                    new DecimalFormat("0.00").format(SizeMod.sizePercentage*100) + "%"), true);
        }
    }

    int hunger;
    float saturation;
    @SubscribeEvent
    public void startPlayerEat(LivingEntityUseItemEvent.Start event) {
        if (event.getItem().isFood() && event.getEntity() instanceof PlayerEntity) {
            PlayerEntity player = (PlayerEntity) event.getEntity();
            FoodStats foodStats = player.getFoodStats();
            hunger = foodStats.getFoodLevel();
            saturation = foodStats.getSaturationLevel();
        }
    }

    @SubscribeEvent
    public void finishPlayerEat(LivingEntityUseItemEvent.Finish event) {
        if (event.getItem().isFood() && event.getEntity() instanceof PlayerEntity) {
            PlayerEntity player = (PlayerEntity) event.getEntity();
            FoodStats foodStats = player.getFoodStats();
            hunger = foodStats.getFoodLevel() - hunger;
            saturation = foodStats.getSaturationLevel() - saturation;
            hunger *= (1 - sizePercentage);
            saturation *= (1 - sizePercentage);
            foodStats.addStats(Math.round(hunger), saturation);
        }
    }

    // You can use EventBusSubscriber to automatically subscribe events on the contained class (this is subscribing to the MOD
    // Event bus for receiving Registry Events)
    @Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
    public static class RegistryEvents {
        @SubscribeEvent
        public static void onBlocksRegistry(final RegistryEvent.Register<Block> blockRegistryEvent) {
            // register a new block here

        }
    }
}

 

[ChampionAsh5357]

You should never use OnlyIn. Properly isolate your client code in a different class.

[jstN0body]

Ok, so after I move it to a separate class, how do I make it so that is only run by the client?

[ChampionAsh5357]

DistExecutor#unsafeRunForDist iirc or one of the other methods that specifies sided running.

[poopoodice]

17 hours ago, poopoodice said:

client only (means you should not have any reference to that class from server side).

 

[Draco18s]

By the way:

This:

On 11/9/2020 at 6:36 PM, jstN0body said:

        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
        // Register the enqueueIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::enqueueIMC);
        // Register the processIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::processIMC);
        // Register the doClientStuff method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::doClientStuff);

And this:

Quote

        // Register ourselves for server and other game events we are interested in
        MinecraftForge.EVENT_BUS.register(this);

Do the exact same thing, just in a different way. @EventBusSubscriber also does this. Th only difference is that there are two different busses (the mod bus and the forge bus) and one of them is for FML events ("life cycle events" which are on the mod event bus) and the rest are for game events (the forge event bus). You should use two different classes for the two different types of events, separating out all the client stuff to another third (and possibly fourth) class.

 

And personally I'd use the @EventBusSubscriber annotation, because then it's very easy to tell what bus a given set of events is for.

[TheGreyGhost]

Howdy

 

You might get some inspiration from this class, it shows the method I've used to make the example mod work with Dedicated Server:

https://github.com/TheGreyGhost/MinecraftByExample/blob/master/src/main/java/minecraftbyexample/MinecraftByExample.java

 

The key bits are:

 

    
@Mod(MinecraftByExample.MODID)
public class MinecraftByExample {

  public MinecraftByExample() {
	// We need to split the registration of events into:
    // 1) "Common" events that are executed on a dedicated server and also on an integrated client + server installation
    // 2) "Client only" events that are not executed on a dedicated server.
    // If you aren't careful to split these into two parts, your mod will crash when installed on a dedicated server
    // It doesn't matter if your client-only code is never actually called; simply referencing the class is often enough to
    //   cause a crash.

    registerCommonEvents();
    DistExecutor.runWhenOn(Dist.CLIENT, () -> MinecraftByExample::registerClientOnlyEvents);
  }
}
  public static void registerCommonEvents() {
    MOD_EVENT_BUS.register(minecraftbyexample.mbe01_block_simple.StartupCommon.class);
  }

  public static void registerClientOnlyEvents() {
    MOD_EVENT_BUS.register(minecraftbyexample.mbe01_block_simple.StartupClientOnly.class);
  }


public class StartupCommon
{
  public static BlockSimple blockSimple;  // this holds the unique instance of your block
  public static BlockItem itemBlockSimple;  // this holds the unique instance of the ItemBlock corresponding to your block

  @SubscribeEvent
  public static void onBlocksRegistration(final RegistryEvent.Register<Block> blockRegisterEvent) {
    blockSimple = (BlockSimple)(new BlockSimple().setRegistryName("minecraftbyexample", "mbe01_block_simple_registry_name"));
    blockRegisterEvent.getRegistry().register(blockSimple);
  }
}
    
public class StartupClientOnly
{
  /**
   * Tell the renderer this is a solid block
   * @param event
   */
  @SubscribeEvent
  public static void onClientSetupEvent(FMLClientSetupEvent event) {
    RenderTypeLookup.setRenderLayer(StartupCommon.blockSimple, RenderType.getSolid());
  }
}

 

[jstN0body]

Ok, I moved the render events to a class called Render, but I still have the same problem where I shrink for a split second and go back to normal. It works fine singleplayer, just not on a server. I can however, change my size in singleplayer and then connect to the server and remain that same size. Any ideas on what's happening?

@Mod(SizeMod.MODID)
public class SizeMod {
    // Directly reference a log4j logger.
    private static final Logger LOGGER = LogManager.getLogger();

    public static final String MODID = "sizemod";
    public static final String VERSION = "1.1.2";

    public static float sizePercentage = 1.0f;


    public SizeMod() {

        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
        // Register the enqueueIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::enqueueIMC);
        // Register the processIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::processIMC);
        // Register the doClientStuff method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::doClientStuff);

        ModLoadingContext.get().registerExtensionPoint(ExtensionPoint.DISPLAYTEST, () -> Pair.of(() -> FMLNetworkConstants.IGNORESERVERONLY, (a, b) -> true));

        DistExecutor.unsafeRunWhenOn(Dist.CLIENT, () -> Render::new);

        MinecraftForge.EVENT_BUS.register(this);
    }

    private void setup(final FMLCommonSetupEvent event)
    {
        // some preinit code
    }

    private void doClientStuff(final FMLClientSetupEvent event) {

    }

    private void enqueueIMC(final InterModEnqueueEvent event)
    {
        // some example code to dispatch IMC to another mod
    }

    private void processIMC(final InterModProcessEvent event)
    {
        // some example code to receive and process InterModComms from other mods
    }


    @SubscribeEvent
    public void onServerStarting(FMLServerStartingEvent event) {
        ModCommands.register(event.getServer().getCommandManager().getDispatcher());
    }

    @SubscribeEvent
    public void onSizeChange(PlayerEvent.Size event) {

        if (event.getEntity() instanceof PlayerEntity) {
            EntitySize newSize;
            switch (event.getPose()) {
                case CROUCHING:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 1.5f * sizePercentage);
                    break;

                case SWIMMING:
                case FALL_FLYING:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 0.6f * sizePercentage);
                    break;

                case SLEEPING:
                    newSize = EntitySize.fixed(0.2f * sizePercentage, 0.2f * sizePercentage);
                    break;

                default:
                    newSize = EntitySize.fixed(0.6f * sizePercentage, 1.8f * sizePercentage);
            }
            event.setNewSize(newSize);
            event.setNewEyeHeight(newSize.height * 0.9f);
        }
    }


    @SubscribeEvent
    public void onPlayerRespawn(PlayerEvent.PlayerRespawnEvent event) {
        if (!(event.getEntity() instanceof PlayerEntity)) return;

        SizeMod.sizePercentage -= 0.01;
        for (ServerPlayerEntity player : event.getPlayer().getServer().getPlayerList().getPlayers()) {
            player.setBoundingBox(AxisAlignedBB.func_241550_g_(0.6, 1.8, 0.6));
            player.sendStatusMessage(new TranslationTextComponent("Your size is now: " +
                    new DecimalFormat("0.00").format(SizeMod.sizePercentage*100) + "%"), true);
        }
    }

    int hunger;
    float saturation;
    @SubscribeEvent
    public void startPlayerEat(LivingEntityUseItemEvent.Start event) {
        if (event.getItem().isFood() && event.getEntity() instanceof PlayerEntity) {
            PlayerEntity player = (PlayerEntity) event.getEntity();
            FoodStats foodStats = player.getFoodStats();
            hunger = foodStats.getFoodLevel();
            saturation = foodStats.getSaturationLevel();
        }
    }

    @SubscribeEvent
    public void finishPlayerEat(LivingEntityUseItemEvent.Finish event) {
        if (event.getItem().isFood() && event.getEntity() instanceof PlayerEntity) {
            PlayerEntity player = (PlayerEntity) event.getEntity();
            FoodStats foodStats = player.getFoodStats();
            hunger = foodStats.getFoodLevel() - hunger;
            saturation = foodStats.getSaturationLevel() - saturation;
            hunger *= (1 - sizePercentage);
            saturation *= (1 - sizePercentage);
            foodStats.addStats(Math.round(hunger), saturation);
        }
    }

    // You can use EventBusSubscriber to automatically subscribe events on the contained class (this is subscribing to the MOD
    // Event bus for receiving Registry Events)
    @Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
    public static class RegistryEvents {
        @SubscribeEvent
        public static void onBlocksRegistry(final RegistryEvent.Register<Block> blockRegistryEvent) {
            // register a new block here

        }
    }
}

public class Render {

    public Render() {
        MinecraftForge.EVENT_BUS.register(this);
    }

    @SubscribeEvent
    public void preRenderPlayer(RenderPlayerEvent.Pre event) {
        event.getMatrixStack().push();
        event.getMatrixStack().scale(SizeMod.sizePercentage, SizeMod.sizePercentage, SizeMod.sizePercentage);
    }

    @SubscribeEvent
    public void postRenderPlayer(RenderPlayerEvent.Post event) {
        event.getMatrixStack().pop();
    }
}