Squander

Should I assign a new instance to the IItemHandler field

Everything works, repository on github updated.

Ok

Does my IItemHandler extension interface need to be registered with RegisterCapabilityEvent?

Oh, thank you so much!

This is not a backpack, I open it with an event (only for the test) in the ClickBlock class

When I turn on the menu, the items that I have in the hotbar appear in 9 slots form my capability, and I want more space

https://github.com/Squander12/Backpack-1.18.2 I think it should work.

My config in my mod project [core] repositoryformatversion = 0 filemode = false bare = false logallrefupdates = true symlinks = false ignorecase = true [remote "origin"] url = [email protected]:/Squander12/Backpack1.18.2.git fetch = +refs/heads/*:refs/remotes/origin/* [remote "github"] url = [email protected]:/Squander12/Backpack_1.18.2.git fetch = +refs/heads/*:refs/remotes/github/* [lfs] repositoryformatversion = 0 [remote "githubh"] url = [email protected]:/Squander12/Backpack_1.18.2.git fetch = +refs/heads/*:refs/remotes/githubh/* [remote "githubasd"] url = [email protected]:/Squander12/Backpack1.18.2123.git fetch = +refs/heads/*:refs/remotes/githubasd/* [remote "originn"] url = [email protected]:/Squander12/Backpack-1.18.2.git fetch = +refs/heads/*:refs/remotes/originn/* [remote "githubheunyrty"] url = [email protected]:/Squander12/aaaa.git fetch = +refs/heads/*:refs/remotes/githubheunyrty/* [commit] gpgsign = false

okay i run github desktop then file tab then add local repository i gave the path of my mod, all files are like loaded but i don't really know what to do now.

Github Desktop

error: cannot spawn gpg: No such file or directory error: gpg failed to sign the data fatal: failed to write commit object

Okay, I don't have the strength to bother with this anymore. Nothing works. Screw it.

https://github.com/Squander12/Backpack_1.18.2

I think it's the first

Can't finish GitHub sharing process Successfully created project 'Backpack1.18.2' on GitHub, but initial commit failed: gpg: skipped "Squander12 <[email protected]>": No secret key gpg: signing failed: No secret key gpg failed to sign the data failed to write commit object I get this error all the time.

public ExtraStorageMenu(int pContainerId, Inventory inventory, FriendlyByteBuf buffer) { this(pContainerId, inventory, new ItemStackHandler(buffer.readVarInt())); } public ExtraStorageMenu(int pContainerId, Inventory inventory, IItemHandler handler) { super(MenuTypeInit.EXTRA_STORAGE.get(), pContainerId); for(int i = 0; i < 9; ++i) { this.addSlot(new SlotItemHandler(handler, i, 1 + i * 18, 1)); } this.addPlayerInventory(inventory); this.addPlayerHotbar(inventory); } private void addPlayerInventory(Inventory inventory){ for(int i = 0; i < 3; ++i) { for(int j = 0; j < 9; ++j) { this.addSlot(new Slot(inventory, j + i * 9 + 9, 8 + j * 18, 84 + i * 18)); } } } private void addPlayerHotbar(Inventory inventory){ for(int k = 0; k < 9; ++k) { this.addSlot(new Slot(inventory, k, 8 + k * 18, 142)); } }

I did a new capability but still have items from the hotbar. public static final Capability<IItemHandler> EXTRA_STORAGE = CapabilityManager.get(new CapabilityToken<>(){}); private final LazyOptional<IItemHandler> optional = LazyOptional.of(() -> this); public ExtraStorageInventory(int size){ this.setSize(size); } @NotNull @Override public <T> LazyOptional<T> getCapability(@NotNull Capability<T> cap, @Nullable Direction side) { return cap == EXTRA_STORAGE ? optional.cast() : LazyOptional.empty(); } player.getCapability(ExtraStorageInventory.EXTRA_STORAGE).ifPresent(handler -> { NetworkHooks.openGui((ServerPlayer) player, new SimpleMenuProvider((id, inv, plr) -> new ExtraStorageMenu(id, inv, handler), new TextComponent("EXTRA STORAGE")), buffer -> buffer.writeVarInt(9)); });

public class ExtraStorageInventory extends ItemStackHandler implements ICapabilityProvider { private final LazyOptional<IItemHandler> optional = LazyOptional.of(() -> this); public ExtraStorageInventory(int size){ this.setSize(size); } @NotNull @Override public <T> LazyOptional<T> getCapability(@NotNull Capability<T> cap, @Nullable Direction side) { return cap == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY ? optional.cast() : LazyOptional.empty(); } }

Okay, after opening the menu, the items in the slots are the same as in the hotbar.

Attempts to attach capabilities to the player but receives this error. [10:27:23] [Server thread/ERROR] [ne.mi.ev.EventBus/EVENTBUS]: Exception caught during firing event: Cannot invoke "net.minecraftforge.common.util.LazyOptional.cast()" because "this.playerJoinedHandler" is null Index: 1 Listeners: 0: NORMAL 1: ASM: class me.squander.backpack.event.AttachCapabilities onAttachCapabilities(Lnet/minecraftforge/event/AttachCapabilitiesEvent;)V java.lang.NullPointerException: Cannot invoke "net.minecraftforge.common.util.LazyOptional.cast()" because "this.playerJoinedHandler" is null at TRANSFORMER/[email protected]/net.minecraft.world.entity.player.Player.getCapability(Player.java:2228) at TRANSFORMER/[email protected]/net.minecraftforge.common.capabilities.ICapabilityProvider.getCapability(ICapabilityProvider.java:34) at TRANSFORMER/[email protected]/me.squander.backpack.event.AttachCapabilities.onAttachCapabilities(AttachCapabilities.java:19) at net.minecraftforge.eventbus.ASMEventHandler_1_AttachCapabilities_onAttachCapabilities_AttachCapabilitiesEvent.invoke(.dynamic) at MC-BOOTSTRAP/[email protected]/net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) at MC-BOOTSTRAP/[email protected]/net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) at MC-BOOTSTRAP/[email protected]/net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) at TRANSFORMER/[email protected]/net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:593) at TRANSFORMER/[email protected]/net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:587) at TRANSFORMER/[email protected]/net.minecraftforge.common.capabilities.CapabilityProvider.doGatherCapabilities(CapabilityProvider.java:73) at TRANSFORMER/[email protected]/net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:68) at TRANSFORMER/[email protected]/net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:52) at TRANSFORMER/[email protected]/net.minecraft.world.entity.Entity.<init>(Entity.java:257) at TRANSFORMER/[email protected]/net.minecraft.world.entity.LivingEntity.<init>(LivingEntity.java:234) at TRANSFORMER/[email protected]/net.minecraft.world.entity.player.Player.<init>(Player.java:172) at TRANSFORMER/[email protected]/net.minecraft.server.level.ServerPlayer.<init>(ServerPlayer.java:238) at TRANSFORMER/[email protected]/net.minecraft.server.players.PlayerList.getPlayerForLogin(PlayerList.java:412) at TRANSFORMER/[email protected]/net.minecraft.server.network.ServerLoginPacketListenerImpl.handleAcceptedLogin(ServerLoginPacketListenerImpl.java:124) at TRANSFORMER/[email protected]/net.minecraft.server.network.ServerLoginPacketListenerImpl.tick(ServerLoginPacketListenerImpl.java:70) at TRANSFORMER/[email protected]/net.minecraft.network.Connection.tick(Connection.java:267) at TRANSFORMER/[email protected]/net.minecraft.server.network.ServerConnectionListener.tick(ServerConnectionListener.java:160) at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:947) at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:873) at TRANSFORMER/[email protected]/net.minecraft.client.server.IntegratedServer.tickServer(IntegratedServer.java:90) at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:704) at TRANSFORMER/[email protected]/net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:262) at java.base/java.lang.Thread.run(Thread.java:833) [10:27:23] [Server thread/ERROR] [minecraft/ServerLoginPacketListenerImpl]: Couldn't place player in world java.lang.NullPointerException: Cannot invoke "net.minecraftforge.common.util.LazyOptional.cast()" because "this.playerJoinedHandler" is null at net.minecraft.world.entity.player.Player.getCapability(Player.java:2228) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraftforge.common.capabilities.ICapabilityProvider.getCapability(ICapabilityProvider.java:34) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading} at me.squander.backpack.event.AttachCapabilities.onAttachCapabilities(AttachCapabilities.java:19) ~[%2384!/:?] {re:classloading} at net.minecraftforge.eventbus.ASMEventHandler_1_AttachCapabilities_onAttachCapabilities_AttachCapabilitiesEvent.invoke(.dynamic) ~[?:?] {} at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-5.0.7.jar%2310!/:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-5.0.7.jar%2310!/:?] {} at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-5.0.7.jar%2310!/:?] {} at net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:593) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading} at net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:587) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading} at net.minecraftforge.common.capabilities.CapabilityProvider.doGatherCapabilities(CapabilityProvider.java:73) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading} at net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:68) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading} at net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:52) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading} at net.minecraft.world.entity.Entity.<init>(Entity.java:257) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.world.entity.LivingEntity.<init>(LivingEntity.java:234) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading} at net.minecraft.world.entity.player.Player.<init>(Player.java:172) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.level.ServerPlayer.<init>(ServerPlayer.java:238) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.players.PlayerList.getPlayerForLogin(PlayerList.java:412) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading} at net.minecraft.server.network.ServerLoginPacketListenerImpl.handleAcceptedLogin(ServerLoginPacketListenerImpl.java:124) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.network.ServerLoginPacketListenerImpl.tick(ServerLoginPacketListenerImpl.java:70) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.network.Connection.tick(Connection.java:267) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading} at net.minecraft.server.network.ServerConnectionListener.tick(ServerConnectionListener.java:160) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading} at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:947) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:873) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.client.server.IntegratedServer.tickServer(IntegratedServer.java:90) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:704) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:262) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B} at java.lang.Thread.run(Thread.java:833) [?:?] {} [10:27:23] [Server thread/INFO] [minecraft/ServerLoginPacketListenerImpl]: com.mojang.authlib.GameProfile@5e18a6a7[id=380df991-f603-344c-a090-369bad2a924a,name=Dev,properties={},legacy=false] (local:E:d56832b6) lost connection: Invalid player data [10:27:23] [Server thread/WARN] [minecraft/Connection]: handleDisconnection() called twice @SubscribeEvent public static void onAttachCapabilities(AttachCapabilitiesEvent<Entity> event){ if(event.getObject() instanceof Player){ if(!event.getObject().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY).isPresent()){ event.addCapability(new ResourceLocation(BackpackMod.MODID, "extra_storage"), new ExtraStorageInventory(9)); } } }

Okay I changed my code and looked at Jorrit Tyberghein's tutorial though I'm still not sure if that's the right way. public class MoneyPacketSyncS2C { private final int playerMoney; public MoneyPacketSyncS2C(int playerMoney) { this.playerMoney = playerMoney; } public MoneyPacketSyncS2C(FriendlyByteBuf buf) { this.playerMoney = buf.readVarInt(); } public void encode(FriendlyByteBuf buf){ buf.writeVarInt(this.playerMoney); } public boolean handle(Supplier<NetworkEvent.Context> supplier){ NetworkEvent.Context ctx = supplier.get(); ctx.enqueueWork(() -> { ClientMoneyData.setMoney(this.playerMoney); }); return true; } public static void register(int id){ PacketHandler.INSTANCE.messageBuilder(MoneyPacketSyncS2C.class, id, NetworkDirection.PLAY_TO_CLIENT) .encoder(MoneyPacketSyncS2C::encode) .decoder(MoneyPacketSyncS2C::new) .consumer(MoneyPacketSyncS2C::handle).add(); } } public class ClientMoneyData { private static int playerMoney; public static void setMoney(int money){ ClientMoneyData.playerMoney = money; } public static int getMonet(){ return playerMoney; } }

My helper class and packet class I don't really know what to do now. public class MoneyHelper { public static void add(Player player, int amount){ player.getCapability(CapabilityMoney.MONEY).ifPresent(money -> { money.setMoney(money.getMoney() + amount); sendSyncPacket(player); }); } public static void remove(Player player, int amount){ player.getCapability(CapabilityMoney.MONEY).ifPresent(money -> { money.setMoney(money.getMoney() - amount); sendSyncPacket(player); }); } public static void messageMoney(Player player){ player.getCapability(CapabilityMoney.MONEY).ifPresent(x -> { player.sendMessage(new TextComponent("Money: " + x.getMoney()).withStyle(ChatFormatting.GREEN), player.getUUID()); }); } private static void sendSyncPacket(Player player){ PacketHandler.sendToClient(new MoneyPacketSyncS2C(), (ServerPlayer) player); } } public class MoneyPacketSyncS2C { public MoneyPacketSyncS2C() {} public MoneyPacketSyncS2C(FriendlyByteBuf buf) {} public void encode(FriendlyByteBuf buf){} public boolean handle(Supplier<NetworkEvent.Context> supplier){ NetworkEvent.Context ctx = supplier.get(); ctx.enqueueWork(() -> { }); return true; } public static void register(int id){ PacketHandler.INSTANCE.messageBuilder(MoneyPacketSyncS2C.class, id, NetworkDirection.PLAY_TO_CLIENT) .encoder(MoneyPacketSyncS2C::encode) .decoder(MoneyPacketSyncS2C::new) .consumer(MoneyPacketSyncS2C::handle).add(); } }

I attach my capability to player.