Registering Entities (1.16.5)

[tal124]

I thought that registering Entities would be similar to the other ways I have registered Items or Fluids, The tutorials I have seen to do this are both easier, and more difficult than the DeferredRegister's way in 1.16. I have created a Slime Entity called EntityChocolateSlime, but I am unsure as to how I should register it

 

public class ModEntities{

    public static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create(ForgeRegistries.ENTITIES, chocolate.MODID);

    //Attaches the deferred register to the event bus
    public static void init() {
        ENTITIES.register(FMLJavaModLoadingContext.get().getModEventBus());
    }




    public static final EntityType<?> CHOCOLATE_SLIME =
            ENTITIES.register("chocolate_slime", EntityType.Builder.<EntityChocolateSlime>create(EntityChocolateSlime::new,
                    EntityClassification.MONSTER).size(2.04F, 2.04F).trackingRange(8));


}

 

The error message I get is 

error: method register in class DeferredRegister<T> cannot be applied to given types;
ENTITIES.register("chocolate_cube", EntityType.Builder.<EntityChocolateSlime>create(EntityChocolateSlime::new,
^

Why can it not be applied?

[poopoodice]

The register method takes a supplier.

[tal124]

58 minutes ago, poopoodice said:

The register method takes a supplier.

I have registered the Entity but the game doesn't recognize it, however I can start it up, and I have created both the required renderer and model for my Entity called Chocolate_Slime

 

However it gives me the error "MCP Entity class missing World constructor now"

 

I have tried copying and pasting and changing the magma cubes to match my chocolate slime however it still gives me this error, I have since reverted it back to what I had originally.

 

What am I missing?

 

Edited March 16, 2021 by tal124

[tal124]

public class ModEntities{

    public static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create(ForgeRegistries.ENTITIES, chocolate.MODID);

    //Attaches the deferred register to the event bus
    public static void init() {
        ENTITIES.register(FMLJavaModLoadingContext.get().getModEventBus());
    }


    public static final EntityType<EntityChocolateSlime> CHOCOLATE_SLIME = make(EntityNames.CHOCOLATE_SLIME, EntityChocolateSlime::new,
            EntityClassification.MONSTER, 2.04F, 2.04F);



    @SuppressWarnings("unchecked")
    private static <E extends Entity> EntityType<E> build(ResourceLocation id, EntityType.Builder<E> builder) {
        boolean cache = SharedConstants.useDatafixers;
        SharedConstants.useDatafixers = false;
        EntityType<E> ret = (EntityType<E>) builder.build(id.toString()).setRegistryName(id);
        SharedConstants.useDatafixers = cache;
        return ret;
    }

    private static <E extends Entity> EntityType<E> make(ResourceLocation id, EntityType.IFactory<E> factory, EntityClassification classification, float width, float height) {
        return build(id, makeBuilder(factory, classification).size(width, height));
    }
    

    private static <E extends Entity> EntityType.Builder<E> makeBuilder(EntityType.IFactory<E> factory, EntityClassification classification) {
        return EntityType.Builder.create(factory, classification).
                size(0.6F, 1.8F).
                setTrackingRange(80).
                setUpdateInterval(3).
                setShouldReceiveVelocityUpdates(true);
    }


}

public class EntityChocolateSlime extends SlimeEntity {
    public EntityChocolateSlime(EntityType<? extends EntityChocolateSlime> type, World worldIn) {
        super((EntityType<? extends SlimeEntity>) ModEntities.CHOCOLATE_SLIME, worldIn);
    }




    public static AttributeModifierMap.MutableAttribute func_234294_m_() {
        return MonsterEntity.func_234295_eP_().createMutableAttribute(Attributes.MOVEMENT_SPEED, (double)0.2F);
    }
    public static boolean func_223367_b(EntityType<EntityChocolateSlime> p_223367_0_, IWorld p_223367_1_, SpawnReason p_223367_2_, BlockPos p_223367_3_, Random p_223367_4_) {
        return p_223367_1_.getDifficulty() != Difficulty.PEACEFUL;
    }

    public boolean isNotColliding(IWorldReader worldIn) {
        return worldIn.checkNoEntityCollision(this) && !worldIn.containsAnyLiquid(this.getBoundingBox());
    }
    public EntityType<? extends EntityChocolateSlime> getType() {
        return (EntityType<? extends EntityChocolateSlime>)super.getType();
    }

    protected void setSlimeSize(int size, boolean resetHealth) {
        super.setSlimeSize(size, resetHealth);
        this.getAttribute(Attributes.ARMOR).setBaseValue((double)(size * 3));
    }
    protected int getJumpDelay() {
        return super.getJumpDelay() * 4;
    }

    protected void alterSquishAmount() {
        this.squishAmount *= 0.9F;
    }

    protected void jump() {
        Vector3d vector3d = this.getMotion();
        this.setMotion(vector3d.x, (double)(this.getJumpUpwardsMotion() + (float)this.getSlimeSize() * 0.1F), vector3d.z);
        this.isAirBorne = true;
        net.minecraftforge.common.ForgeHooks.onLivingJump(this);
    }
    protected void handleFluidJump(ITag<Fluid> fluidTag) {
        if (fluidTag == FluidTags.LAVA) {
            Vector3d vector3d = this.getMotion();
            this.setMotion(vector3d.x, (double)(0.22F + (float)this.getSlimeSize() * 0.05F), vector3d.z);
            this.isAirBorne = true;
        } else {
            super.handleFluidJump(fluidTag);
        }

    }
    protected boolean canDamagePlayer() {
        return this.isServerWorld();
    }

    protected float func_225512_er_() {
        return super.func_225512_er_() + 2.0F;
    }

    protected SoundEvent getHurtSound(DamageSource damageSourceIn) {
        return this.isSmallSlime() ? SoundEvents.ENTITY_MAGMA_CUBE_HURT_SMALL : SoundEvents.ENTITY_MAGMA_CUBE_HURT;
    }

    protected SoundEvent getDeathSound() {
        return this.isSmallSlime() ? SoundEvents.ENTITY_MAGMA_CUBE_DEATH_SMALL : SoundEvents.ENTITY_MAGMA_CUBE_DEATH;
    }

    protected SoundEvent getSquishSound() {
        return this.isSmallSlime() ? SoundEvents.ENTITY_MAGMA_CUBE_SQUISH_SMALL : SoundEvents.ENTITY_MAGMA_CUBE_SQUISH;
    }

    protected SoundEvent getJumpSound() {
        return SoundEvents.ENTITY_MAGMA_CUBE_JUMP;
    }
}

Here is my Entity Code, And nothing is wrong with my spawnegg either, I changed it from my mod entity to a regular slime and it worked fine

 

I'm just a little confused and looking at what other mod creators have done with 1.16 entities is a little bit hard since all of them are incredibly more proficient at modding than me.

[tal124]

public chocolate() {

        ModFluids.init();
        ModBlocks.init();
        ModItems.init();
        ModEntities.init();
        MinecraftForge.EVENT_BUS.addListener(EventPriority.HIGH, OreGeneration::generateOres);
        MinecraftForge.EVENT_BUS.addListener(EventPriority.HIGH, FluidGeneration::generateFluids);

        // 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);



    }

Right here

[tal124]

I am getting the MCP entity class missing world constructor for some reason and no matter what I do, I can't get it to go away, even straight ripping off the Magma slime entity won't get rid of it.

[tal124]

The game runs fine, but the Entities just won't exist and no matter how much I look into other mods and adjust my code test it, and then reset it back to where I want it.

[tal124]

I have all of my current code here https://github.com/Tyrannys/Chocolate, if that's what you mean? I'm relatively new to modding only started a couple weeks ago.

[tal124]

3 minutes ago, diesieben07 said:

The code you posted does not even compile. After commenting out the data generator code that didn't compile, the game crashes with a null pointer exception in your registration code.

I may have committed the wrong code as I just put it into github a couple of hours ago to organize the mod a bit, Try my test branch and see if that works better, I just committed to it what I currently have.

Edited March 16, 2021 by tal124

[tal124]

Its not letting me commit for some reason, I'll fix it and then let you know when it commits

[tal124]

I made a new commit and switched the other one to private https://github.com/Tyrannys/Chocolate-Mod, don't know why it wouldn't let me push a commit

[tal124]

There were a lot of changes that I made when adding new blocks, apparently they didn't stick. I'll change it to where I had it. give me a few minutes

[tal124]

Alright I made the changes and now the code should work just fine. I'm not sure why it reset it back to 2 hours ago.

[tal124]

So what code should I use instead? I know you probably want me to figure this out on my own, but I've been looking at this code for almost a week now while working on other parts of the mod as well.

[tal124]

public static final DeferredRegister<Block> BLOCKS = DeferredRegister.create(ForgeRegistries.BLOCKS, chocolate.MODID);
  
  
  public static final RegistryObject<Block> CHOCOLATE_ORE = BLOCKS.register("chocolate_ore", () ->
            new Block(AbstractBlock.Properties.create(Material.ROCK).hardnessAndResistance(3.0F, 3.0F)
            .sound(SoundType.STONE).harvestLevel(1).harvestTool(ToolType.PICKAXE))
        );

This is how I register them, 

 

public static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create(ForgeRegistries.ENTITIES, chocolate.MODID);

public static final EntityType<EntityChocolateSlime> CHOCOLATE_SLIME = ENTITIES.register("chocolate_slime", ()->
       /*right here*/     );

Its simple with the blocks as you can define a new Block(properties), but new EntityType<> doesn't work the right way either, is there something im missing?

[tal124]

Its telling me It has private access and I'm not sure how to get around that yet.

[tal124]

4 minutes ago, diesieben07 said:

You already created an EntityType in your previous code.

Then I suppose im still a little confused, I've typed it out a few different ways and it always comes back with an error

 

public static EntityType<EntityChocolateSlime> CHOCOLATE_SLIME = ENTITIES.register("chocolate_slime", ()->
            new EntityType.Builder(EntityChocolateSlime::new, EntityClassification.MONSTER).size(2.04F,2.04F).trackingRange(8));

This is what I keep coming back to though, however EntityType.Builder errors out.

 

[tal124]

public static final EntityType<EntityChocolateSlime> CHOCOLATE_SLIME = ENTITIES.register(EntityNames.CHOCOLATE_SLIME,()-> EntityChocolateSlime::new, 
            EntityClassification.MONSTER, 2.04F, 2.04F);

Like this?

[DietmarKracht]

I think what you are missing is the actual function to build your entity type. Just add .build() and it should be fine. Also dont use static initializers as @diesieben07 already said. Use RegistryObjects instead.

4 hours ago, tal124 said:

Then I suppose im still a little confused, I've typed it out a few different ways and it always comes back with an error

 

public static EntityType<EntityChocolateSlime> CHOCOLATE_SLIME = ENTITIES.register("chocolate_slime", ()->
            new EntityType.Builder(EntityChocolateSlime::new, EntityClassification.MONSTER).size(2.04F,2.04F).trackingRange(8));

This is what I keep coming back to though, however EntityType.Builder errors out.

 

 

 

Here is an example of how i register entity types:

public static RegistryObject<EntityType<EntityItemUpgradable>> ENTITY_UPGRADABLE = ALL.register("upgradable_type",
        () -> EntityType.Builder.<EntityItemUpgradable>create(EntityItemUpgradable::new, EntityClassification.MISC)
                .build(new ResourceLocation(Main.MODID, "upgradable_type").toString()));

[tal124]

3 hours ago, DietmarKracht said:

I think what you are missing is the actual function to build your entity type. Just add .build() and it should be fine. Also dont use static initializers as @diesieben07 already said. Use RegistryObjects instead.

 

 

Here is an example of how i register entity types:

public static RegistryObject<EntityType<EntityItemUpgradable>> ENTITY_UPGRADABLE = ALL.register("upgradable_type",
        () -> EntityType.Builder.<EntityItemUpgradable>create(EntityItemUpgradable::new, EntityClassification.MISC)
                .build(new ResourceLocation(Main.MODID, "upgradable_type").toString()));

Thank you for the sample but now its simply saying my registry object isn't present, the code pushes out, but it says NullPointerException: Registry Object not present: chocolate:chocolate_slime

Edited March 16, 2021 by tal124

[tal124]

I updated it

[DietmarKracht]

You need to paste your stacktrace when you get NPEs. The NPE might be due to calling the entity type before it was registered.

[tal124]

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 3/16/21 3:30 PM
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
	at net.minecraftforge.fml.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:85) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.client.ClientModLoader.completeModLoading(ClientModLoader.java:188) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.lambda$null$1(Minecraft.java:513) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.util.Util.acceptOrElse(Util.java:323) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.client.Minecraft.lambda$new$2(Minecraft.java:509) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.ResourceLoadProgressGui.render(ResourceLoadProgressGui.java:113) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:493) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1002) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:612) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_282] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_282] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_282] {}
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_282] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at java.util.Objects.requireNonNull(Objects.java:290) ~[?:1.8.0_282] {}
-- MOD chocolate --
Details:
	Caused by 0: java.lang.ExceptionInInitializerError
		at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:102) ~[?:?] {re:classloading}
		at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:95) ~[?:?] {re:classloading}
		at tyrannus.chocolate.setup.ModBlocks.<clinit>(ModBlocks.java:77) ~[?:?] {re:classloading}
		at tyrannus.chocolate.chocolate.<init>(chocolate.java:42) ~[?:?] {re:classloading}
		at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_282] {}
		at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_282] {}
		at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_282] {}
		at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_282] {}
		at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_282] {}
		at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.0] {re:classloading}
		at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading}
		at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_282] {}
		at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175) ~[?:1.8.0_282] {}

	Mod File: main
	Failure message: Chocolate (chocolate) has failed to load correctly
		java.lang.ExceptionInInitializerError: null
	Mod Version: NONE
	Mod Issue URL: NOT PROVIDED
	Exception message: java.lang.NullPointerException: Registry Object not present: chocolate:chocolate_slime
Stacktrace:
	at java.util.Objects.requireNonNull(Objects.java:290) ~[?:1.8.0_282] {}
	at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:120) ~[forge:?] {re:classloading}
	at tyrannus.chocolate.setup.ModItems.<clinit>(ModItems.java:106) ~[?:?] {re:classloading}
	at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:102) ~[?:?] {re:classloading}
	at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:95) ~[?:?] {re:classloading}
	at tyrannus.chocolate.setup.ModBlocks.<clinit>(ModBlocks.java:77) ~[?:?] {re:classloading}
	at tyrannus.chocolate.chocolate.<init>(chocolate.java:42) ~[?:?] {re:classloading}
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_282] {}
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_282] {}
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_282] {}
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_282] {}
	at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_282] {}
	at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.0] {re:classloading}
	at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading}
	at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_282] {}
	at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175) ~[?:1.8.0_282] {}


-- System Details --
Details:
	Minecraft Version: 1.16.5
	Minecraft Version ID: 1.16.5
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_282, Amazon.com Inc.
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Amazon.com Inc.
	Memory: 1666800792 bytes (1589 MB) / 3224371200 bytes (3075 MB) up to 7618953216 bytes (7266 MB)
	CPUs: 24
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 8.0.9+86+master.3cf110c
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/mixin-0.8.2.jar mixin PLUGINSERVICE 
		/eventbus-4.0.0.jar eventbus PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 36.0
	Forge: net.minecraftforge:36.0.48
	FML Language Providers: 
		javafml@36.0
		minecraft@1
	Mod List: 
		client-extra.jar                                  |Minecraft                     |minecraft                     |1.16.5              |CREATE_REG|a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
		forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16|Forge                         |forge                         |36.0.48             |CREATE_REG|NOSIGNATURE
		main                                              |Chocolate                     |chocolate                     |NONE                |ERROR     |NOSIGNATURE
	Crash Report UUID: 4fa0efb2-03a8-4530-857c-52cd156f3c41

 

[DietmarKracht]

So the problem is inside your chocolate.java class you register the items including spawn eggs for the entities before the entities are registered. swap both inits and you should be good

[tal124]

I swapped them and got this again

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 3/16/21 4:14 PM
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
	at net.minecraftforge.fml.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:85) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraftforge.fml.client.ClientModLoader.completeModLoading(ClientModLoader.java:188) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.lambda$null$1(Minecraft.java:513) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.util.Util.acceptOrElse(Util.java:323) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.client.Minecraft.lambda$new$2(Minecraft.java:509) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.ResourceLoadProgressGui.render(ResourceLoadProgressGui.java:113) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:493) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1002) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:612) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_282] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_282] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_282] {}
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_282] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at java.util.Objects.requireNonNull(Objects.java:290) ~[?:1.8.0_282] {}
-- MOD chocolate --
Details:
	Caused by 0: java.lang.ExceptionInInitializerError
		at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:102) ~[?:?] {re:classloading}
		at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:95) ~[?:?] {re:classloading}
		at tyrannus.chocolate.setup.ModBlocks.<clinit>(ModBlocks.java:77) ~[?:?] {re:classloading}
		at tyrannus.chocolate.chocolate.<init>(chocolate.java:42) ~[?:?] {re:classloading}
		at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_282] {}
		at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_282] {}
		at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_282] {}
		at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_282] {}
		at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_282] {}
		at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.0] {re:classloading}
		at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading}
		at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_282] {}
		at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) ~[?:1.8.0_282] {}
		at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175) ~[?:1.8.0_282] {}

	Mod File: main
	Failure message: Chocolate (chocolate) has failed to load correctly
		java.lang.ExceptionInInitializerError: null
	Mod Version: NONE
	Mod Issue URL: NOT PROVIDED
	Exception message: java.lang.NullPointerException: Registry Object not present: chocolate:chocolate_slime
Stacktrace:
	at java.util.Objects.requireNonNull(Objects.java:290) ~[?:1.8.0_282] {}
	at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:120) ~[forge:?] {re:classloading}
	at tyrannus.chocolate.setup.ModItems.<clinit>(ModItems.java:106) ~[?:?] {re:classloading}
	at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:102) ~[?:?] {re:classloading}
	at tyrannus.chocolate.setup.ModBlocks.register(ModBlocks.java:95) ~[?:?] {re:classloading}
	at tyrannus.chocolate.setup.ModBlocks.<clinit>(ModBlocks.java:77) ~[?:?] {re:classloading}
	at tyrannus.chocolate.chocolate.<init>(chocolate.java:42) ~[?:?] {re:classloading}
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_282] {}
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_282] {}
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_282] {}
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_282] {}
	at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_282] {}
	at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.0] {re:classloading}
	at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading}
	at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_282] {}
	at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) ~[?:1.8.0_282] {}
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175) ~[?:1.8.0_282] {}


-- System Details --
Details:
	Minecraft Version: 1.16.5
	Minecraft Version ID: 1.16.5
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_282, Amazon.com Inc.
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Amazon.com Inc.
	Memory: 2733412320 bytes (2606 MB) / 3161456640 bytes (3015 MB) up to 7618953216 bytes (7266 MB)
	CPUs: 24
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 8.0.9+86+master.3cf110c
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/mixin-0.8.2.jar mixin PLUGINSERVICE 
		/eventbus-4.0.0.jar eventbus PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE 
		/forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16.5-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 36.0
	Forge: net.minecraftforge:36.0.48
	FML Language Providers: 
		javafml@36.0
		minecraft@1
	Mod List: 
		client-extra.jar                                  |Minecraft                     |minecraft                     |1.16.5              |CREATE_REG|a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
		forge-1.16.5-36.0.48_mapped_snapshot_20210309-1.16|Forge                         |forge                         |36.0.48             |CREATE_REG|NOSIGNATURE
		main                                              |Chocolate                     |chocolate                     |NONE                |ERROR     |NOSIGNATURE
	Crash Report UUID: dc6a8c1b-2ae6-49b9-b271-ed348743358a