The values saved in playerdata file.

However, the values aren't imported when login.

How do I fix?

 

Main:

public static final ResourceLocation CAP_RESOURCE = new ResourceLocation(MODID, "capabilities");

public TestMod() {
  FMLJavaModLoadingContext.get().getModEventBus().addListener(TestMod::onFMLCommonSetup);
}

@SubscribeEvent
public static void onFMLCommonSetup(FMLCommonSetupEvent event) {
  CapabilityManager.INSTANCE.register(IMyCapability.class, new MyCapabilityStorage(), () -> new MyCapability(2.0f));
}

@SubscribeEvent
public static void attachCapability(AttachCapabilitiesEvent<Entity> event) {
  if (!(event.getObject() instanceof PlayerEntity)) return;

  event.addCapability(CAP_RESOURCE, new MyCapabilityProvider());
}

 

Provider:

public class MyCapabilityProvider implements ICapabilitySerializable<INBT> {
  @CapabilityInject(IMyCapability.class)
  public static final Capability<IMyCapability> CAP = null;

  private LazyOptional<IMyCapability> instance = LazyOptional.of(CAP::getDefaultInstance);

  @Nonnull
  @Override
  public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
    return CAP.orEmpty(cap, instance);
  }

  @Override
  public INBT serializeNBT() {
    return (INBT) CAP.getStorage().writeNBT(CAP, instance.orElseThrow(() -> new IllegalArgumentException("at serialize")), null);
  }

  @Override
  public void deserializeNBT(INBT nbt) {
    CAP.getStorage().readNBT(CAP, instance.orElseThrow(() -> new IllegalArgumentException("at deserialize")), null, nbt);
  }
}

 

Storage:

public class MyCapabilityStorage implements Capability.IStorage<IMyCapability> {
  @Override
  public INBT writeNBT(Capability<IMyCapability> capability, IMyCapability instance, Direction side) {
    CompoundNBT tag = new CompoundNBT();
    tag.putFloat("cap1", instance.getCap1());
    tag.putFloat("cap2", instance.getCap2());
    tag.putFloat("cap3", instance.getCap3());
    return tag;
  }

  @Override
  public void readNBT(Capability<IMyCapability> capability, IMyCapability instance, Direction side, INBT nbt) {
    CompoundNBT tag = (CompoundNBT) nbt;
    instance.setCap1(tag.getFloat("cap1"));
    instance.setCap2(tag.getFloat("cap2"));
    instance.setCap3(tag.getFloat("cap3"));
  }
}

 

Edited August 6, 20205 yr by kyazuki

I checked by NBTExplorer.

My cap value is synced player max health.

It's reset every time player join the world.

"scale" is the value.

The players max health is set to "scale" multiplied by 20.

https://github.com/kyazuki/DietMod/blob/e82c049c1cb76167f99ec54318fbaf1b85e8be64/src/main/java/com/github/kyazuki/dietmod/EventSubscriber.java#L87

Edited August 7, 20205 yr by kyazuki

I fixed!

https://github.com/kyazuki/DietMod/blob/3f17baad31d4b91edaf56e75dd90c168f5194aad/src/main/java/com/github/kyazuki/dietmod/EventSubscriber.java#L84

I noticed PlayerEntity.distanceWalkModified reset when login.

How do I get statics correctly on 1.16.1?