Main

public class CrystalMain
{
    public static final Logger LOGGER = LogManager.getLogger();
    public static final String Mod_ID = "crystalcodex";
    public static final ItemGroup CRYSTAL_GROUP = new CrystalGroup("crystaltab");

    public CrystalMain() {
        IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus();
        bus.addListener(this::setup);

        ItemInit.ITEMS.register(bus);
        BlockInit.BLOCKS.register(bus);
        MobRegistration.ENTITIES.register(bus);

        MinecraftForge.EVENT_BUS.register(this);
    }

    private void setup(final FMLCommonSetupEvent event)
    {

    }

    public static class CrystalGroup extends ItemGroup{
        public CrystalGroup(String label) {
            super(label);
        }

        @Override
        public ItemStack makeIcon() {
            return ItemInit.RUBERON_CRYSTAL.get().getDefaultInstance();
        }
    }

    @SubscribeEvent
    public static void entityAttributeCreationEvent(EntityAttributeCreationEvent event) {
        LOGGER.info("Entity Attribute Event");
        event.put(WeirdMobEntity.TYPE, WeirdMobEntity.MAP);
    }

    public static ResourceLocation location(String name)
    {
        return new ResourceLocation(Mod_ID, name);
    }
}