(1.16.5) Player Capabilities help

Zanckor · February 17, 2022

Eya, I need some help to add capabilities to the player.

I want just to add simple NBT to the player, like booleans and int, no more, but I've been searching for information since 1 or 2 weeks ago and every guide or github do the capabilities different, i've seen like 6 differents forms or more to do the capabilities but i dont understand it, some people make only 1 class, others makes like 8...

So, I hope if anybody can give me a little example and can explain it a bit to me, thanks!

Luis_ST · February 17, 2022

you can take a look at the doc or at this example

Zanckor · February 17, 2022

2 hours ago, Luis_ST said:

you can take a look at the doc or at this example

A lot of this code is not working, are you sure that is for 1.16.5?

Edited February 17, 2022 by Zanckor

Luis_ST · February 17, 2022

it's for 1.18 but the doc exists for 1.16, also show your code and define 'not working'

Zanckor · February 17, 2022

5 minutes ago, Luis_ST said:

it's for 1.18 but the doc exists for 1.16, also show your code and define 'not working'

well, a lot of code errors, but if its for 1.18 that explains all

Zanckor · February 17, 2022

Ok, I done all of the capability system, i think, so, this should work? Or im missing something?

That should work on players?

https://github.com/Zanckor/mmorpg/tree/main/src/main/java/com/mod

Edited February 17, 2022 by Zanckor

Luis_ST · February 17, 2022

where is your CapabilityProvider, also i would recommend you to ignore the CapabilityStorage since it's unused

Zanckor · February 17, 2022

K, tnks, so, i need to add the provider and delete storage?

Btw, what do the storage??

diesieben07 · February 17, 2022

46 minutes ago, Zanckor said:

Btw, what do the storage??

It was intended so that mod B can serialize capabilities that are added by mod A. But it was never really used, so it was removed in 1.18.

Zanckor · February 19, 2022

okay, i done everything but still dont works

when i try to open the game to test the capabilities it crash... there's my code and crash-log:

code:

https://github.com/Zanckor/mmorpg

crash-log:

Quote

Description: Ticking player

java.lang.ClassFormatError: Illegal field modifiers in class com/mod/capabilities/Capabilities: 0x1009
   at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_231] {}
   at java.lang.ClassLoader.defineClass(ClassLoader.java:756) ~[?:1.8.0_231] {}
   at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:138) ~[modlauncher-8.0.9.jar:?] {re:classloading}
   at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) ~[modlauncher-8.0.9.jar:?] {re:classloading}
   at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_231] {}
   at com.mod.handlers.ModEventHandler.onPlayerTick(ModEventHandler.java:33) ~[main/:?] {re:classloading}
   at net.minecraftforge.eventbus.ASMEventHandler_4_ModEventHandler_onPlayerTick_PlayerTickEvent.invoke(.dynamic) ~[?:?] {}
   at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
   at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
   at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
   at net.minecraftforge.fml.hooks.BasicEventHooks.onPlayerPreTick(BasicEventHooks.java:85) ~[forge:?] {re:classloading}
   at net.minecraft.entity.player.PlayerEntity.tick(PlayerEntity.java:196) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.entity.player.ServerPlayerEntity.doTick(ServerPlayerEntity.java:404) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.network.play.ServerPlayNetHandler.tick(ServerPlayNetHandler.java:207) ~[forge:?] {re:classloading}
   at net.minecraft.network.NetworkManager.tick(NetworkManager.java:226) ~[forge:?] {re:classloading}
   at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:134) ~[forge:?] {re:classloading}
   at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:865) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:787) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.server.integrated.IntegratedServer.tickServer(IntegratedServer.java:78) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:642) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:232) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_231] {}

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

-- Head --
Thread: Server thread
Stacktrace:
   at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_231] {}
   at java.lang.ClassLoader.defineClass(ClassLoader.java:756) ~[?:1.8.0_231] {}
   at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:138) ~[modlauncher-8.0.9.jar:?] {re:classloading}
   at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) ~[modlauncher-8.0.9.jar:?] {re:classloading}
   at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_231] {}
   at com.mod.handlers.ModEventHandler.onPlayerTick(ModEventHandler.java:33) ~[main/:?] {re:classloading}
   at net.minecraftforge.eventbus.ASMEventHandler_4_ModEventHandler_onPlayerTick_PlayerTickEvent.invoke(.dynamic) ~[?:?] {}
   at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
   at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
   at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
   at net.minecraftforge.fml.hooks.BasicEventHooks.onPlayerPreTick(BasicEventHooks.java:85) ~[forge:?] {re:classloading}
   at net.minecraft.entity.player.PlayerEntity.tick(PlayerEntity.java:196) ~[forge:?] {re:classloading,pl:accesstransformer:B}
-- Player being ticked --
Details:
   Entity Type: minecraft:player (net.minecraft.entity.player.ServerPlayerEntity)
   Entity ID: 152
   Entity Name: Dev
   Entity's Exact location: -170.74, 66.00, -81.88
   Entity's Block location: World: (-171,66,-82), Chunk: (at 5,4,14 in -11,-6; contains blocks -176,0,-96 to -161,255,-81), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
   Entity's Momentum: 0.00, -0.08, 0.00
   Entity's Passengers: []
   Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
   at net.minecraft.entity.player.ServerPlayerEntity.doTick(ServerPlayerEntity.java:404) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.network.play.ServerPlayNetHandler.tick(ServerPlayNetHandler.java:207) ~[forge:?] {re:classloading}
   at net.minecraft.network.NetworkManager.tick(NetworkManager.java:226) ~[forge:?] {re:classloading}
   at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:134) ~[forge:?] {re:classloading}
   at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:865) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:787) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.server.integrated.IntegratedServer.tickServer(IntegratedServer.java:78) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:642) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:232) ~[forge:?] {re:classloading,pl:accesstransformer:B}
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_231] {}

diesieben07 · February 19, 2022

Make sure you are using Java 8 for both compiling and running the game.

Zanckor · February 19, 2022

1 hour ago, diesieben07 said:

Make sure you are using Java 8 for both compiling and running the game.

where can i check it?

diesieben07 · February 19, 2022

What IDE are you using and how are you starting the game?

Zanckor · February 19, 2022

4 minutes ago, diesieben07 said:

What IDE are you using and how are you starting the game?

I'm using Eclipse, and to start it i just go to the icon "Start" and select the option runClient

diesieben07 · February 19, 2022

Then it should work. But I don't use Eclipse.

Zanckor · February 19, 2022

Maybe is my gradle? Cause it shows me this error:

"Could not run phased build action using a connection to Gradle distribution 'https://services.gradle.org/distributions/gradle-6.8.1-all.zip'.

Zanckor · February 19, 2022

Okay, i'm idiot, i put the capabilities.class like interface xD, so, how can i get the capabilitie now? like, make a player.getMana()

And, btw, i read that i need to send the information from the server to the client when i change my capabilities, how can i make it?

Luis_ST · February 19, 2022

Player#getCapability

Quote

And, btw, i read that i need to send the information from the server to the client when i change my capabilities, how can i make it?

you need a custom Network Packet (Message) and a SimpleChannel, you can read the doc

Edited February 19, 2022 by Luis_ST

Zanckor · February 20, 2022

Mhh, when i try to access to them it crash me.

My github:

https://github.com/Zanckor/mmorpg

Crash:

Time: 20/02/22 18:16 Description: Ticking memory connection java.lang.NullPointerException: Ticking memory connection at com.mod.capabilities.MyCapabilityProvider.<init>(MyCapabilityProvider.java:11) ~[main/:?] {re:classloading} at com.mod.capabilities.Capabilities.attachCapabilities(Capabilities.java:31) ~[main/:?] {re:classloading,pl:capability_inject_definalize:A} at net.minecraftforge.eventbus.ASMEventHandler_3_Capabilities_attachCapabilities_AttachCapabilitiesEvent.invoke(.dynamic) ~[?:?] {} at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {} at net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:579) ~[forge:?] {re:classloading} at net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:573) ~[forge:?] {re:classloading} at net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:48) ~[forge:?] {re:classloading} at net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:44) ~[forge:?] {re:classloading} at net.minecraft.entity.Entity.<init>(Entity.java:221) ~[forge:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.entity.LivingEntity.<init>(LivingEntity.java:205) ~[forge:?] {re:classloading} at net.minecraft.entity.player.PlayerEntity.<init>(PlayerEntity.java:159) ~[forge:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.entity.player.ServerPlayerEntity.<init>(ServerPlayerEntity.java:179) ~[forge:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.management.PlayerList.getPlayerForLogin(PlayerList.java:406) ~[forge:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.handleAcceptedLogin(ServerLoginNetHandler.java:118) ~[forge:?] {re:classloading} at net.minecraft.network.login.ServerLoginNetHandler.tick(ServerLoginNetHandler.java:65) ~[forge:?] {re:classloading} at net.minecraft.network.NetworkManager.tick(NetworkManager.java:222) ~[forge:?] {re:classloading} at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:134) ~[forge:?] {re:classloading} at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:865) ~[forge:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:787) ~[forge:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.integrated.IntegratedServer.tickServer(IntegratedServer.java:78) ~[forge:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:642) ~[forge:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:232) ~[forge:?] {re:classloading,pl:accesstransformer:B} at java.lang.Thread.run(Thread.java:748) [?:1.8.0_231] {}

Edited February 20, 2022 by Zanckor

diesieben07 · February 20, 2022

Please use the .gitignore file that comes with the MDK. You have potentially pushed Mojang's code that is under copyright to your repository.
Your capability is not registered, because this method is never called.

Zanckor · February 23, 2022

There's any way to send the capaiblities from PlayerTickEvent and save them into Server side without packets?

Edited February 23, 2022 by Zanckor

Luis_ST · February 23, 2022

no, you need a custom Packet if you want to send data from server to client

15 hours ago, Zanckor said:

send the capaiblities from PlayerTickEvent

this is a terrible idea, do not send data each tick, send the data only if it changed

Edited February 24, 2022 by Luis_ST

diesieben07 · February 24, 2022

15 hours ago, Zanckor said:

There's any way to send the capaiblities from PlayerTickEvent and save them into Server side without packets?

Also: Data is synced from server to client, not the other way around.

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(1.16.5) Player Capabilities help

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