Luis_ST

you never use your static field COPPER_ORE, it is still null in BiomeLoadingEvent

why on earth are you creating a ResourceKey in BiomeLoadingEvent, you should use the Name you get from the Event and the Location of the ResourceKey (you can get it from ResourceKey#location) instead also is your FMLCommonSetupEvent fierd?

MCreator is not supported on this Forum

so you don't use MCreator for modding?

did you use MCreator?

post the error

forge use in 1.17 mojang mappings for classes and the packages, the entity package has been moved into the world package

show more of your code 1 line doesn't help, since this line looks good for me also do you know basic java since the error should says whats wrong

define "doesn't work"

yes since BiomeManager#addAdditionalOverworldBiomes requierd that the Biome is registerd via the RegistryEvent or DeferredRegister yes and yes

if you add the Biomes via json you need only need a ResourceKey if you want to add the Biome to the Overworld you still need a RegistryObject for more information about how to create a json Biome you can look here

you need to use BiomeLoadingEvent to add custom features to Biomes if you not use json Biomes, since Features are registered after to Biomes

post screenshots of the mods folder form server and client

you use the correct way to register CF, the code you post looks also okay can you post the the full debug log and the code where you add the CF to your custom Biome

yes, i would also recommend you to follow the Java Naming Conventions

post the full log, not only the stacktrace

you need to check if the World is an instance of ServerWorld first the you can cast the World like vanilla

First of all do never use @OnlyIn since it is only for vanilla, second since you are creating a skeleton you can look at the vanilla skeleton renderer

show your code

show your code

post more of your code, i prefer a git repo

this question is completely irrelevant, you could simply test it if it works it is done, if it doesn't work it's not done

the ItemInHandLayer is called in 1.16.5 HeldItemLayer, everything else should be the same

use LightningBolt#setVisualOnly with parm true, this will stop the LightningBolt for damage Entities and place Fire, after that you need to call the damge function manualy, something like: List<Entity> entities = lightningBolt.level.getEntities(this, new AABB(this.getX() - 3.0D, this.getY() - 3.0D, this.getZ() - 3.0D, this.getX() + 3.0D, this.getY() + 6.0D + 3.0D, this.getZ() + 3.0D), Entity::isAlive); for(Entity entity : entities) { if (!net.minecraftforge.event.ForgeEventFactory.onEntityStruckByLightning(entity, this)) entity.thunderHit((ServerLevel)lightningBolt.level, this); } }

nop its for 1.17.1 but if you want to use this for 1.16.5, you need to search in your IDE for the class since it can be that the class name I gave you above is different (since 1.17 use mojang class names)