Capability issue

[GiantNuker]

Hi, I am working with Minecraft 1.11.2 and I am having a problem with the capability system.  There is the "AttachCapabilitiesEvent" but my problem is if my mod is installed AFTER a world is generated, I cannot attach ANY capabilities!(My mod REALLY needs this one)

Thank you for your time 

[Draco18s]

What are you trying to attach a capability to?
You can't install a mod while the game is running which means that the event should work just fine.

[GiantNuker]

14 hours ago, Draco18s said:

What are you trying to attach a capability to?
You can't install a mod while the game is running which means that the event should work just fine.

When I am in my development environment and I run my mod, it has a capability check which determines if it can run.

My mod attaches capabilities to the player(specifically them "magic user" capability) and the mod fails without it.

[Jay Avery]

7 minutes ago, GiantNuker said:

When I am in my development environment and I run my mod, it has a capability check which determines if it can run.

My mod attaches capabilities to the player(specifically them "magic user" capability) and the mod fails without it.

What? Your mod attaches capabilities, but if your mod capability isn't already there then your mod doesn't run...? Post your code to explain what is happening.

[GiantNuker]

On 3/18/2017 at 9:35 AM, Jay Avery said:

What? Your mod attaches capabilities, but if your mod capability isn't already there then your mod doesn't run...? Post your code to explain what is happening.

if (!player.hasCapability(MagicUserProvider.USER_CAP, null)) throw new IllegalArgumentException("player object must have capability")

Will capabilities automatically be created?(In which case this code is completely pointless )

[Jay Avery]

No, capabilities are not created automatically. What exactly are you trying to do?

[Matryoshika]

You need to manually attach the Capability to the intended object, as well as register the Capability.

To attach a Capability to an Entity (like a player) you need to use an @Mod.EventBusSubscriber annotated eventhandler for the AttachCapabilitiesEvent<Entity> event.

To register the Capability, call CapabilityManager::register with the Interface class, an IStorage object for the Capability, and lastly a Factory for said Capability (Most just call a new instance of the Capability with lambda).

 

It would be easiest for everyone if you posted your code, and state what you have tried already.

[GiantNuker]

Ok, I did not realize that capabilities were attached automatically.

 

[LexManos]

THey arnt, as stated above you need to do so in the AttachCapabilityEvent.

[GiantNuker]

On 3/26/2017 at 0:11 PM, LexManos said:

THey arnt, as stated above you need to do so in the AttachCapabilityEvent.

I mean when a new mod is added all entities will get a run through of the AttatchCapabilitiesEvent?

[LexManos]

Every time time the entity class is loaded it will fire the event.

It doesnt care if mods are added or not.

Has nothing to do with the world being old or new.

Its whenever the instance of the class is created in the JVM.