Problème de persistance avec une capability

LaurentOutang

Bonjour,

J’ai créé une nouvelle Capability représentant la température. Jusque là pas de problème, elle s’incrémente bien lorsque je casse un block (c’était pour tester). Le problème vient quand je me déconnecte et que je me reconnecte je perds toutes les données, rien n’a été sauvegardé sur le serveur. Voici donc les fichiers concernés :

ITemperature.java

package com.capabilities.modcapabilities.temperature;

import net.minecraft.entity.player.EntityPlayer;

public interface ITemperature {

	public void setTemperature(float t);
	
	public float getTemperature();
	
	public void addTemperature(float t);
	
	public void removeTemperature(float t);
	
	public void sync(EntityPlayer player);
}

Temperature.java

package com.capabilities.modcapabilities.temperature;

import com.capabilities.modcapabilities.ModCapabilities;
import com.capabilities.modcapabilities.network.TemperaturePacket;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;

public class Temperature implements ITemperature {
	
	public float temperature;

	public static int MIN = 0, MAX=100;
	
	public Temperature()
	{
		
	}
	
	public Temperature(float t)
	{
		temperature = t;
	}
	
	@Override
	public void setTemperature(float t) {
		if(t>= MIN && t <= MAX) 
			temperature = t;
		else if(t> MAX)
			temperature = (float)MAX;
		else
			temperature = (float)MIN;
	}

	@Override
	public float getTemperature() {
		return temperature;
	}

	@Override
	public void addTemperature(float t) {
		setTemperature(getTemperature()+t);
	}

	@Override
	public void removeTemperature(float t) {
		setTemperature(getTemperature()-t);
	}

	@Override	
	public void sync(EntityPlayer player) //sync data between player and server
	{
	    TemperaturePacket packet = new TemperaturePacket(temperature);
	    
	    if(!player.world.isRemote)
	    {
	    	System.out.println("sync, isRemote ? : no, send to player");
	        EntityPlayerMP playerMP = (EntityPlayerMP)player;
	        ModCapabilities.network.sendTo(packet, playerMP);
	    }
	    else
	    {
	    	System.out.println("sync, isRemote ? : yes, send to server");
	    	ModCapabilities.network.sendToServer(packet);
	    }
	}
	

}

TemperatureCapability.java

package com.capabilities.modcapabilities.temperature;

import com.capabilities.modcapabilities.ModCapabilities;
import com.capabilities.modcapabilities.network.TemperaturePacket;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.EnumFacing;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.capabilities.CapabilityManager;
import net.minecraftforge.common.capabilities.ICapabilityProvider;
import net.minecraftforge.common.util.INBTSerializable;

public class TemperatureCapability implements ICapabilityProvider, INBTSerializable<NBTTagCompound> {

	protected ITemperature temperature;
	
	protected EntityPlayer player;
	
	@Override
	public NBTTagCompound serializeNBT() {
		return (NBTTagCompound) ModCapabilities.TEMPERATURE_CAPABILITY.writeNBT(this.temperature, null);
	}

	@Override
	public void deserializeNBT(NBTTagCompound nbt) {
		ModCapabilities.TEMPERATURE_CAPABILITY.readNBT(this.temperature, null, nbt);
	}

	@Override
	public boolean hasCapability(Capability<?> capability, EnumFacing facing) {
		// TODO Auto-generated method stub
		return ModCapabilities.TEMPERATURE_CAPABILITY != null && capability == ModCapabilities.TEMPERATURE_CAPABILITY;
	}

	@Override
	public <T> T getCapability(Capability<T> capability, EnumFacing facing) {
		return this.hasCapability(capability, facing) ? ModCapabilities.TEMPERATURE_CAPABILITY.cast(this.temperature) : null;
	}
	
	public static void register()
	{
		 CapabilityManager.INSTANCE.register(ITemperature.class, new TemperatureStorage(), Temperature::new);
	}
	
	public TemperatureCapability(EntityPlayer player)
	{
		this.temperature  = new Temperature(0.0F);
		this.player = player;
	}
	
	public ITemperature getTemperatureObj()
	{
		return temperature;
	}
}

TemperatureStorage

package com.capabilities.modcapabilities.temperature;

import java.util.concurrent.Callable;

import com.capabilities.modcapabilities.ModCapabilities;

import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.EnumFacing;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.capabilities.CapabilityInject;

public class TemperatureStorage implements Capability.IStorage<ITemperature> {

	
	@Override
	public NBTBase writeNBT(Capability<ITemperature> capability, ITemperature instance,
			EnumFacing side) 
	{
		NBTTagCompound nbt = new NBTTagCompound();
		nbt.setFloat("temperature", capability.getDefaultInstance().getTemperature());
        return nbt;
	}

	@Override
	public void readNBT(Capability<ITemperature> capability, ITemperature instance, EnumFacing side,
			NBTBase base) 
	{
		 if(base instanceof NBTTagCompound) {
	            NBTTagCompound nbt = (NBTTagCompound)base;
	            capability.getDefaultInstance().setTemperature(nbt.getFloat("temperature"));
	        }
		
	}

}

La classe principale

package com.capabilities.modcapabilities;

import net.minecraft.init.Blocks;
import net.minecraftforge.common.capabilities.Capability;
import net.minecraftforge.common.capabilities.CapabilityInject;
import net.minecraftforge.common.capabilities.CapabilityManager;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
import net.minecraftforge.fml.relauncher.Side;

import org.apache.logging.log4j.Logger;

import com.capabilities.modcapabilities.network.TemperaturePacket;
import com.capabilities.modcapabilities.temperature.ITemperature;
import com.capabilities.modcapabilities.temperature.Temperature;
import com.capabilities.modcapabilities.temperature.TemperatureCapability;
import com.capabilities.modcapabilities.temperature.TemperatureStorage;

@Mod(modid = ModCapabilities.MODID, name = ModCapabilities.NAME, version = ModCapabilities.VERSION)
public class ModCapabilities
{
	@CapabilityInject(ITemperature.class)
    public static final Capability <ITemperature> TEMPERATURE_CAPABILITY = null;
	
    public static final String MODID = "mocapa";
    public static final String NAME = "Mod Capabilities";
    public static final String VERSION = "1.0";

    public static SimpleNetworkWrapper network;
    
    private static Logger logger;

     @EventHandler
    
        public void preInit(FMLPreInitializationEvent event)    
        {    
            logger = event.getModLog();            
    
            //Register network max range 255    
            network = NetworkRegistry.INSTANCE.newSimpleChannel("ModCapabilities");
    
            //Server processing    
            network.registerMessage(TemperaturePacket.ServerHandler.class, TemperaturePacket.class, 1, Side.SERVER);
    
            if(event.getSide() != Side.SERVER)    
            {    
            	//Client processing    
                network.registerMessage(TemperaturePacket.ClientHandler.class, TemperaturePacket.class, 0, Side.CLIENT);    
            }
        }
    
    public void init(FMLInitializationEvent event)
    {
    	//Register temperature capability
    	TemperatureCapability.register();
    }
}

Les events

package com.capabilities.modcapabilities;

import com.capabilities.modcapabilities.network.TemperaturePacket;
import com.capabilities.modcapabilities.temperature.ITemperature;
import com.capabilities.modcapabilities.temperature.TemperatureCapability;
import com.capabilities.modcapabilities.temperature.TemperatureStorage;

import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.text.TextComponentString;
import net.minecraftforge.event.AttachCapabilitiesEvent;
import net.minecraftforge.event.entity.player.PlayerEvent;
import net.minecraftforge.event.entity.player.PlayerInteractEvent;
import net.minecraftforge.event.world.BlockEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.PlayerEvent.PlayerLoggedInEvent;
import net.minecraftforge.fml.common.gameevent.PlayerEvent.PlayerLoggedOutEvent;
import net.minecraftforge.fml.common.gameevent.PlayerEvent.PlayerRespawnEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent.PlayerTickEvent;
import net.minecraftforge.fml.relauncher.Side;

@Mod.EventBusSubscriber
public class CapabilitiesEvent {
	
	@SubscribeEvent
	public static void onAttachCapability(AttachCapabilitiesEvent<Entity> event)
	{
		Entity entity = event.getObject();
	    if(entity instanceof EntityPlayer)
	    {
	        event.addCapability(new ResourceLocation(ModCapabilities.MODID + ":temperature_capability"), new TemperatureCapability((EntityPlayer) entity));
	    }
	}
	
	@SubscribeEvent
    public static void onPlayerCloned(PlayerEvent.Clone event)
    {
        if(event.isWasDeath())
        {
            if(event.getOriginal().hasCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null))
            {
            	//Cloned player has same temperature than old one
            	event.getEntityPlayer().getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null).setTemperature(
            			event.getOriginal().getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null).getTemperature());;
            }
        }
    }
	
	@SubscribeEvent
	public static void onPlayerRespawn(PlayerRespawnEvent event) 
	{
	    if(!event.player.world.isRemote)
	    {
	        event.player.getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null).sync(event.player);
	    }
	}
	
	@SubscribeEvent
	public static void onPlayerRightClickBlock(BlockEvent.BreakEvent event)
	{
		ITemperature temp = event.getPlayer().getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null);
		temp.addTemperature(1.0F);
		temp.sync(event.getPlayer());
		event.getPlayer().sendMessage(new TextComponentString("ta temperature : " + (temp.getTemperature())));
	}
	
	@SubscribeEvent
	public static void onPlayerLoggedIn(PlayerLoggedInEvent event)
	{		
		ITemperature temp = event.player.getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null);	
		temp.sync(event.player);
	}
	
	@SubscribeEvent
	public static void onPlayerLoggedOut(PlayerLoggedOutEvent event)
	{
		ITemperature temp = event.player.getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null);
		//TemperaturePacket packet = new TemperaturePacket(temp.getTemperature());
		System.out.println("Avant deconnexion : " + temp.getTemperature());
		temp.sync(event.player);
		
	}
	
}

ScheduledPacketTask .java

package com.capabilities.modcapabilities.network;

import com.capabilities.modcapabilities.ModCapabilities;

import net.minecraft.client.Minecraft;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ScheduledPacketTask implements Runnable
{
    private EntityPlayer player;
    private TemperaturePacket message;
 
    public ScheduledPacketTask(EntityPlayer player, TemperaturePacket message)
    {
        this.player = player;
        this.message = message;
    }
 
    @Override
    public void run()
    {
        EntityPlayer player = this.player == null ? getPlayer() : this.player;
        player.getCapability(ModCapabilities.TEMPERATURE_CAPABILITY, null).setTemperature(message.temperature);
    }
 
    @SideOnly(Side.CLIENT)
    private EntityPlayer getPlayer()
    {
        return Minecraft.getMinecraft().player;
    }
 
}

le paquet

package com.capabilities.modcapabilities.network;

import io.netty.buffer.ByteBuf;
import net.minecraft.client.Minecraft;
import net.minecraft.server.MinecraftServer;
import net.minecraft.world.WorldServer;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler;
import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import net.minecraftforge.fml.server.FMLServerHandler;

public class TemperaturePacket implements IMessage {

	public float temperature;
	
	public TemperaturePacket(float temperature)
	{
		this.temperature = temperature;
	}
	
	public TemperaturePacket()
	{
		
	}
	
	@Override
	public void fromBytes(ByteBuf buf) {
		temperature = buf.readFloat();
	}

	@Override
	public void toBytes(ByteBuf buf) {
		buf.writeFloat(temperature);
	}
	
	
	public static class ServerHandler implements IMessageHandler <TemperaturePacket, IMessage>{
		 
	    @Override
	    public IMessage onMessage(TemperaturePacket message, MessageContext ctx)
	    {
	    	System.out.println("Packet recu serveur, temperature = " + message.temperature);
	    	
	    	ctx.getServerHandler().player.getServerWorld().addScheduledTask(new ScheduledPacketTask(ctx.getServerHandler().player, message));
	        return null;
	    }
	 
	}
	 
	@SideOnly(Side.CLIENT)
	public static class ClientHandler implements IMessageHandler <TemperaturePacket, IMessage>{
	 
	    @Override
	    public IMessage onMessage(TemperaturePacket message, MessageContext ctx)
	    {
	        System.out.println("Packet recu client, temperature = " + message.temperature);
	        Minecraft.getMinecraft().addScheduledTask(new ScheduledPacketTask(null, message));
	        return null;
	    }
	}

}

J’ai suivi ce tuto où j’ai modifié quelques petites choses… Toutes les synchronisations affichent “Packet recu client, temperature = …” même quand je lance le jeu sur le serveur… Merci de votre aide.

robin4002

Dans ton writeNBT et dans ton readNBT remplace capability.getDefaultInstance() par instance

LaurentOutang

Ah ! Très bien, au moins c’était rapide :beaming_face_with_smiling_eyes:. Merci beaucoup, cela fonctionne aussi bien sur le client que sur le serveur !