I am getting the following error. 

Quote

reason: no instance(s) of type variable(s) exist so that PlayerTeamCapability conforms to PlayerTeam inference variable T has incompatible bounds: equality constraints: PlayerTeam lower bounds: PlayerTeamCapability

The code is the follwoing

package uk.nf.teamserpentalise.tspaintball;


import net.minecraft.item.ItemGroup;
import net.minecraft.item.ItemStack;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.common.capabilities.CapabilityManager;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import uk.nf.teamserpentalise.tspaintball.capability.CapabilityTeamStorage;
import uk.nf.teamserpentalise.tspaintball.capability.PlayerTeam;
import uk.nf.teamserpentalise.tspaintball.capability.PlayerTeamCapability;
import uk.nf.teamserpentalise.tspaintball.init.*;

@Mod(TSPaintball.MOD_ID)
public class TSPaintball
{
    public static final String MOD_ID = "tspaintball";
    public static final Logger LOG = LogManager.getLogger();
    public TSPaintball()
    {
        IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus();
        MinecraftForge.EVENT_BUS.register(eventinit.class);
        bus.addListener(this::CommonSetup);
        bus.register(this);
    }
    public void CommonSetup(FMLCommonSetupEvent event){
        CapabilityManager.INSTANCE.register(PlayerTeam.class, new CapabilityTeamStorage(), PlayerTeamCapability::new);
    }

}

That is the main class where the capability manager is throwing the error. (I have shortened the class down to ease with size.

package uk.nf.teamserpentalise.tspaintball.capability;

import net.minecraft.nbt.INBT;
import net.minecraft.util.Direction;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.capabilities.CapabilityInject;
import net.minecraftforge.common.capabilities.ICapabilitySerializable;
import net.minecraftforge.common.util.LazyOptional;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

public class PlayerTeamCapability implements ICapabilitySerializable<INBT>
{

    @CapabilityInject(PlayerTeam.class)
    public static final Capability<PlayerTeam> TEAM_CAPABILITY = null;

    private LazyOptional<PlayerTeam> instance = LazyOptional.of(TEAM_CAPABILITY::getDefaultInstance);

    @Nonnull
    @Override
    public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
        return cap == TEAM_CAPABILITY ? instance.cast() : LazyOptional.empty();
    }

    @Override
    public INBT serializeNBT()
    {
        return TEAM_CAPABILITY.getStorage().writeNBT(TEAM_CAPABILITY,this.instance.orElseThrow(() -> new IllegalArgumentException("LazyOptional must not be empty!")), null);
    }

    @Override
    public void deserializeNBT(INBT nbt)
    {
        TEAM_CAPABILITY.getStorage().readNBT(TEAM_CAPABILITY, this.instance.orElseThrow(() -> new IllegalArgumentException("LazyOptional must not be empty!")), null, nbt);
    }
}

package uk.nf.teamserpentalise.tspaintball.capability;

import net.minecraft.nbt.CompoundNBT;
import net.minecraft.nbt.INBT;
import net.minecraft.util.Direction;
import net.minecraftforge.common.capabilities.Capability;

import javax.annotation.Nullable;

public class CapabilityTeamStorage implements Capability.IStorage<PlayerTeam>
{

    @Nullable
    @Override
    public INBT writeNBT(Capability<PlayerTeam> capability, PlayerTeam instance, Direction side)
    {
        CompoundNBT Tag = new CompoundNBT();
        Tag.putString("player.team",instance.GetTeam());
        return Tag;
    }

    @Override
    public void readNBT(Capability<PlayerTeam> capability, PlayerTeam instance, Direction side, INBT nbt)
    {
        instance.SetTeam(nbt.getAsString());
    }
}

package uk.nf.teamserpentalise.tspaintball.capability;

import net.minecraft.nbt.CompoundNBT;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.util.INBTSerializable;

public interface PlayerTeam extends INBTSerializable<CompoundNBT>
{
    String GetTeam();
    void SetTeam(String Team);



}

 

Any help is greatly appreciated. 

package uk.nf.teamserpentalise.tspaintball.init;

import net.minecraft.entity.Entity;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.event.AttachCapabilitiesEvent;
import net.minecraftforge.event.entity.living.LivingHurtEvent;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;
import uk.nf.teamserpentalise.tspaintball.TSPaintball;
import uk.nf.teamserpentalise.tspaintball.capability.PlayerTeamCapability;


@Mod.EventBusSubscriber(modid = TSPaintball.MOD_ID)
public class eventinit
{
    @SubscribeEvent
    public static void Hurt(LivingHurtEvent event)
    {
        TSPaintball.LOG.info("Hurt Event Fired");
        Entity Target = event.getEntity();
        Entity Hit = event.getSource().getDirectEntity();
        TSPaintball.LOG.info("Traget: " + Target.toString() + "\nHit: " + Hit.toString());

    }

    @SubscribeEvent
    public static void AttachCap(AttachCapabilitiesEvent<Entity> event)
    {
        if(event.getObject() instanceof PlayerEntity)
        {
            event.addCapability(new ResourceLocation(TSPaintball.MOD_ID,"player_team"),new PlayerTeamCapability());
        }
    }
}

This is where the attach event is located that the main class registers to the eventbus

@diesieben07How would I go about adding this last parameter as I'm new to this capability stuff but know enough java.

@diesieben07 not familiar with the factory could you possibly provide a basic example that way I can try to comprehend what it is.

Still don't quite get how to do this with the capability, I do understand the idea but having trouble implementing it.

Sorry if this is too much to ask but could you possibly show me how and what I've done wrong.

package uk.nf.teamserpentalise.tspaintball.capability;

public class CapabilityFactory
{
    public PlayerTeamCapability get(){
        return new PlayerTeamCapability();
    }
}

@diesieben07 Again my apologies if this is too much to ask

Edited June 15, 20223 yr by dan donn
Spelling

no instance(s) of type variable(s) exist so that CapabilityTeamStorage conforms to PlayerTeam inference variable T has incompatible bounds: equality constraints: PlayerTeam lower bounds: CapabilityTeamStorage

 

Managed to find a basic example and went from there but the error above is now what is happening

nevermind i misread the tutorial code

 

 Not sure if you already got it from the tutorial, but In your PlayerTeamCapability provider class, you should add:

public String team;

public PlayerTeamCapability() {this.team = ""}

@Override
public void SetTeam(String string) {
  this.team = string;
}

@Override
public String GetTeam() {
 	return this.team;
}

where we're using the methods from your interface PlayerTeam. But for this PlayerTeamCapability needs to implement PlayerTeam right after ICapabilitySerializable<INBT>.

 

Edited June 15, 20223 yr by urbanxx001

@urbanxx001Yes just managed to get that however now the first parameter does not meet type class<T> instead it is class<PlayerTeam> not sure what is going on there

Required type    Provided
type: Class<T>    Class<PlayerTeam>
storage: IStorage<T>    CapabilityTeamStorage
factory: Callable<? extends T>    <method reference>
reason: no instance(s) of type variable(s) exist so that CapabilityTeamStorage conforms to PlayerTeam inference variable T has incompatible bounds: equality constraints: PlayerTeam lower bounds: CapabilityTeamStorage

 

It's the top one giving me isssues

It may be because your PlayerTeam interface doesn't need to extend INBTSerializable<CompoundNBT>

Edited June 15, 20223 yr by urbanxx001

That hasn't fixed it. still same error

package uk.nf.teamserpentalise.tspaintball.capability;

import net.minecraft.nbt.CompoundNBT;

public class PlayerTeamImpl implements PlayerTeam
{
    private final String Team;

    public PlayerTeamImpl(){
        this("None");
    }
    public PlayerTeamImpl(String team)
    {
        Team = team;
    }


    @Override
    public String GetTeam()
    {
        return null;
    }

    @Override
    public void SetTeam(String Team)
    {

    }

    @Override
    public CompoundNBT serializeNBT()
    {
        final CompoundNBT nbt = new CompoundNBT();
        nbt.putString("player.team", this.GetTeam());
        return nbt;
    }

    @Override
    public void deserializeNBT(CompoundNBT nbt)
    {
        this.SetTeam(nbt.getString("player.team"));
    }
}

Does that seem right

The code in your previous PlayerTeamCapability was fine, but just needs the snippet I mention. You have some of it, but your GetTeam and SetTeam aren't affecting Team. You also shouldn't need:

public PlayerTeamImpl(){
    this("None");
}

And you can implement both interfaces with:

public class PlayerTeamCapability implements PlayerTeam, ICapabilitySerializable<INBT>

Then as far as I can tell, your code would be the same as what I have when I used capabilities, which was able to register and work in game.

Edited June 16, 20223 yr by urbanxx001

Now the error is to do with INBT and CompoundNBT. not sure why

https://github.com/DDX5/TSPaintball

it is under src/main/java/uk/nf/teamserpentalise/tspaintball/capability/

 

the main class has the register and eventinit has the attach capability

I may just stick to basic nbt saving, this seems like a headache to me. Thank you for the help anyways but I don't fully understand it

 

Mainly outside of my range of abilities.

Edited June 15, 20223 yr by dan donn
Appended