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[1.12.2] PacketHandler is annoying like a fly.


[NoOneButNo]

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package com.Test.Nothing.ModSlicer.slashFX;

import java.util.List;
import java.util.Random;

import com.Test.Nothing.ModSlicer.interfaces.IFabledBlades;
import com.Test.Nothing.ModSlicer.network.PacketHandler;
import com.Test.Nothing.ModSlicer.network.message.MsgSlashFX;
import com.Test.Nothing.ModSlicer.util.Utilities;

import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemSword;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.DamageSource;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.network.simpleimpl.IMessage;

public class EntitySlice extends Entity
{
  public static final DataParameter<Integer> lifetime = EntityDataManager.createKey(EntitySlice.class, DataSerializers.VARINT);
  public static final DataParameter<Float> RED = EntityDataManager.createKey(EntitySlice.class, DataSerializers.FLOAT);
  public static final DataParameter<Float> GREEN = EntityDataManager.createKey(EntitySlice.class, DataSerializers.FLOAT);
  public static final DataParameter<Float> BLUE = EntityDataManager.createKey(EntitySlice.class, DataSerializers.FLOAT);
  public static final DataParameter<ItemStack> SWORD = EntityDataManager.createKey(EntitySlice.class, DataSerializers.ITEM_STACK);
  public static final DataParameter<Integer> LIFE_EFFECT = EntityDataManager.createKey(EntitySlice.class, DataSerializers.VARINT);
  public static final DataParameter<Float> ALPHA = EntityDataManager.createKey(EntitySlice.class, DataSerializers.FLOAT);
  public static final DataParameter<Boolean> SLASH_IMMEDIATELY = EntityDataManager.createKey(EntitySlice.class, DataSerializers.BOOLEAN);
  
  public EntityPlayer player = null;

  
  public EntitySlice(EntityPlayer player, World worldIn, float red, float green, float blue, ItemStack stack, int lifeeffect, float alpha)
  {
    super(worldIn);
    this.setSize(0, 0);
    this.setInvisible(true);
    this.getDataManager().set(RED, red);
    this.getDataManager().set(GREEN, green);
    this.getDataManager().set(BLUE, blue);
    this.getDataManager().set(ALPHA, alpha);
    if(stack != null)
    this.getDataManager().set(SWORD, stack);
    this.getDataManager().set(LIFE_EFFECT, lifeeffect);
    this.getDataManager().set(SLASH_IMMEDIATELY, true);
    this.player = player;

  }
  
  public EntitySlice(World worldIn)
  {
    super(worldIn);
  }
  
  public void setPlayer(EntityPlayer player)
  {
    this.player = player;
  }
  
  @Override
  public void onUpdate()
  {
	float red = this.getDataManager().get(RED).floatValue();
	float green = this.getDataManager().get(GREEN).floatValue();
	float blue = this.getDataManager().get(BLUE).floatValue();
	boolean slashImmediately = this.getDataManager().get(SLASH_IMMEDIATELY).booleanValue();
	
	ItemStack stack = this.getDataManager().get(SWORD);
	  
	if(player == null) {
		this.setDead();
		return;
	}
    if (slashImmediately && !this.world.isRemote || ((((Integer)getDataManager().get(lifetime)).intValue() % 3 == 0) && (!this.world.isRemote)))
    {
      this.getDataManager().set(SLASH_IMMEDIATELY, false);
      float offX = 0.5F * (float)Math.sin(Math.toRadians(-90.0F - this.player.rotationYaw));
      float offZ = 0.5F * (float)Math.cos(Math.toRadians(-90.0F - this.player.rotationYaw));
      double x1 = this.player.posX + this.player.getLookVec().x * 0.5D + offX;
      double y1 = this.player.posY + this.player.getLookVec().y * 0.5D + this.player.getEyeHeight();
      double z1 = this.player.posZ + this.player.getLookVec().z * 0.5D + offZ;
      double x2 = this.player.posX + this.player.getLookVec().x * 4.0D;
      double y2 = this.player.posY + this.player.getEyeHeight() + this.player.getLookVec().y * 4.0D;
      double z2 = this.player.posZ + this.player.getLookVec().z * 4.0D;
      this.posX = this.player.posX;
      this.posY = this.player.posY;
      this.posZ = this.player.posZ;
      
      float slashYaw = this.player.rotationYaw;
      float slashPitch = this.player.rotationPitch;
      float angle = 30.0F + new Random().nextFloat() * 120.0F;
      float radius = 2;
      float thickness = 1.5f;
      float arc = 150;
      
      Effect slash = new EffectSlash(this.player.world.provider.getDimension()).setSlashProperties(slashYaw, slashPitch, angle, radius, thickness, arc).setPosition(x1, y1, z1).setMotion((x2 - x1) / 5.0D, (y2 - y1) / 5.0D, (z2 - z1) / 5.0D).setLife(this.getDataManager().get(LIFE_EFFECT).intValue()).setAdditive(true).setColor(red, green, blue, 1.0F);
     
      IMessage mess = new MsgSlashFX(MysticRegistry.FX_SLASH, slash.write());
      
      PacketHandler.sendToAll(new MsgSlashFX(MysticRegistry.FX_SLASH, slash.write()));
          
      //Log.logger.info(mess + " idiot null");    
      //PacketHandler.sendToAll();
      
      double lx = this.player.posX + this.player.getLookVec().x * 2.0D;
      double ly = this.player.posY + this.player.getEyeHeight() + this.player.getLookVec().y * 2.0D;
      double lz = this.player.posZ + this.player.getLookVec().z * 2.0D;
      float dist = 4f;
      float dist2 = 4f;
      List<EntityLivingBase> entities = this.world.getEntitiesWithinAABB(EntityLivingBase.class, new AxisAlignedBB(lx - dist, ly - dist / 3, lz - dist, lx + dist2, ly + dist2 / 3, lz + dist2));
      for (EntityLivingBase e : entities) {
        if (e.getUniqueID().compareTo(this.player.getUniqueID()) != 0)
        {
          e.hurtResistantTime = 0;
  
          if (e.getHealth() > 0.0F)
          {
            Effect cut = new EffectCut(this.world.provider.getDimension()).setSlashProperties(this.player.rotationYaw, this.player.rotationPitch, new Random().nextFloat() * 360.0F).setColor(red, green, blue, 1.0F).setPosition(e.posX, e.posY + e.height / 2.0F, e.posZ).setAdditive(true).setLife(12);
            PacketHandler.sendToAll(new MsgSlashFX(MysticRegistry.FX_CUT, cut.write()));
           // Log.logger.info(cut + " idiot null");
          }
          
          if(stack.getItem() instanceof IFabledBlades && stack.getItem() instanceof ItemSword) {
          Utilities.spawnAppropriateSwordColor(stack, world, e, player);
          ItemSword sword = (ItemSword) stack.getItem();
          //Separate chance for different swords
          if(player.getRNG().nextInt(4) <= 0)
          sword.hitEntity(stack, e, player);
          float attackDamageSlash = (float) player.getEntityAttribute(SharedMonsterAttributes.ATTACK_DAMAGE).getAttributeValue();
          
          e.attackEntityFrom(DamageSource.causePlayerDamage(this.player).setDamageBypassesArmor(), e.getMaxHealth() * 0.025f + (attackDamageSlash / 5));
        }
        }
      }
    }
    getDataManager().set(lifetime, Integer.valueOf(((Integer)getDataManager().get(lifetime)).intValue() - 1));
    if (((Integer)getDataManager().get(lifetime)).intValue() <= 0) {
      setDead();
    }
  }
  
  protected void entityInit()
  {
    getDataManager().register(lifetime, Integer.valueOf(18));
    getDataManager().register(RED, Float.valueOf(1));
    getDataManager().register(GREEN, Float.valueOf(1));
    getDataManager().register(BLUE, Float.valueOf(1));
    getDataManager().register(SWORD, ItemStack.EMPTY);
    getDataManager().register(LIFE_EFFECT, Integer.valueOf(0));
    getDataManager().register(ALPHA, Float.valueOf(0));
    getDataManager().register(SLASH_IMMEDIATELY, Boolean.valueOf(true));
    getDataManager().setDirty(lifetime);
  }
  
  protected void readEntityFromNBT(NBTTagCompound compound)
  {
    //setDead();
  }
  
  protected void writeEntityToNBT(NBTTagCompound compound) {}
}

 

The code above is the code for the EntitySlice.

 

 

package com.Test.Nothing.ModSlicer.network;


import com.Test.Nothing.ModSlicer.network.message.MsgAlterHealthPercentage;
import com.Test.Nothing.ModSlicer.network.message.MsgAlterHealthPercentageClient;
import com.Test.Nothing.ModSlicer.network.message.MsgDecreaseDamage;
import com.Test.Nothing.ModSlicer.network.message.MsgDecreaseDamageClient;
import com.Test.Nothing.ModSlicer.network.message.MsgIncreaseDamage;
import com.Test.Nothing.ModSlicer.network.message.MsgIncreaseDamageClient;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementConsecutiveStrikes;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementConsecutiveStrikesClient;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementHitCount;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementHitCountClient;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementSwordModeClient;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementSwordSign;
import com.Test.Nothing.ModSlicer.network.message.MsgIncrementSwordSignClient;
import com.Test.Nothing.ModSlicer.network.message.MsgNewIncrementSwordMode;
import com.Test.Nothing.ModSlicer.network.message.MsgRemoveAwakened;
import com.Test.Nothing.ModSlicer.network.message.MsgRemoveAwakenedClient;
import com.Test.Nothing.ModSlicer.network.message.MsgResetConsecutiveStrikes;
import com.Test.Nothing.ModSlicer.network.message.MsgResetConsecutiveStrikesClient;
import com.Test.Nothing.ModSlicer.network.message.MsgResetHitCount;
import com.Test.Nothing.ModSlicer.network.message.MsgResetHitCountClient;
import com.Test.Nothing.ModSlicer.network.message.MsgResetSwordMode;
import com.Test.Nothing.ModSlicer.network.message.MsgResetSwordModeClient;
import com.Test.Nothing.ModSlicer.network.message.MsgResetSwordSign;
import com.Test.Nothing.ModSlicer.network.message.MsgResetSwordSignClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSetAwakenEnergy;
import com.Test.Nothing.ModSlicer.network.message.MsgSetAwakenEnergyClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSetAwakened;
import com.Test.Nothing.ModSlicer.network.message.MsgSetAwakenedClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSetModeSelection;
import com.Test.Nothing.ModSlicer.network.message.MsgSetModeSelectionClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSetReadyAwaken;
import com.Test.Nothing.ModSlicer.network.message.MsgSetSkillDuration;
import com.Test.Nothing.ModSlicer.network.message.MsgSetSkillDurationClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSetUsingSkillOrSign;
import com.Test.Nothing.ModSlicer.network.message.MsgSetUsingSkillOrSignClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSlashFX;
import com.Test.Nothing.ModSlicer.network.message.MsgSpecificAlterSwordMode;
import com.Test.Nothing.ModSlicer.network.message.MsgSpecificAlterSwordModeClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSpecificAlterSwordSign;
import com.Test.Nothing.ModSlicer.network.message.MsgSpecificAlterSwordSignClient;
import com.Test.Nothing.ModSlicer.network.message.MsgSuspend;
import com.Test.Nothing.ModSlicer.network.message.MsgUseLunarEnergyClient;
import com.Test.Nothing.ModSlicer.reference.RefStrings;

import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
import net.minecraftforge.fml.relauncher.Side;

public class PacketHandler
{
	public static final SimpleNetworkWrapper INSTANCE = NetworkRegistry.INSTANCE.newSimpleChannel(RefStrings.MODID);

	public static int id;
	
	public static void init()
	{
		INSTANCE.registerMessage(MsgIncreaseDamage.class, MsgIncreaseDamage.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgIncreaseDamageClient.class, MsgIncreaseDamageClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetAwakened.class, MsgSetAwakened.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgSetAwakenedClient.class, MsgSetAwakenedClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetUsingSkillOrSign.class, MsgSetUsingSkillOrSign.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgDecreaseDamage.class, MsgDecreaseDamage.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgDecreaseDamageClient.class, MsgDecreaseDamageClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgNewIncrementSwordMode.class, MsgNewIncrementSwordMode.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgIncrementSwordModeClient.class, MsgIncrementSwordModeClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgUseLunarEnergyClient.class, MsgUseLunarEnergyClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgRemoveAwakened.class, MsgRemoveAwakened.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgRemoveAwakenedClient.class, MsgRemoveAwakenedClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgIncrementSwordSign.class, MsgIncrementSwordSign.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgIncrementSwordSignClient.class, MsgIncrementSwordSignClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgResetSwordMode.class, MsgResetSwordMode.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgResetSwordModeClient.class, MsgResetSwordModeClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgResetConsecutiveStrikes.class, MsgResetConsecutiveStrikes.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgResetConsecutiveStrikesClient.class, MsgResetConsecutiveStrikesClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgIncrementConsecutiveStrikes.class, MsgIncrementConsecutiveStrikes.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgIncrementConsecutiveStrikesClient.class, MsgIncrementConsecutiveStrikesClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgResetSwordSign.class, MsgResetSwordSign.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgResetSwordSignClient.class, MsgResetSwordSignClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetReadyAwaken.class, MsgSetReadyAwaken.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgIncrementHitCount.class, MsgIncrementHitCount.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgIncrementHitCountClient.class, MsgIncrementHitCountClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgResetHitCount.class, MsgResetHitCount.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgResetHitCountClient.class, MsgResetHitCountClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSuspend.class, MsgSuspend.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgAlterHealthPercentage.class, MsgAlterHealthPercentage.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgAlterHealthPercentageClient.class, MsgAlterHealthPercentageClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetSkillDuration.class, MsgSetSkillDuration.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgSetSkillDurationClient.class, MsgSetSkillDurationClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSpecificAlterSwordMode.class, MsgSpecificAlterSwordMode.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgSpecificAlterSwordModeClient.class, MsgSpecificAlterSwordModeClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSpecificAlterSwordSign.class, MsgSpecificAlterSwordSign.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgSpecificAlterSwordSignClient.class, MsgSpecificAlterSwordSignClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetUsingSkillOrSignClient.class, MsgSetUsingSkillOrSignClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetAwakenEnergy.class, MsgSetAwakenEnergy.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgSetAwakenEnergyClient.class, MsgSetAwakenEnergyClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSetModeSelection.class, MsgSetModeSelection.class, id++, Side.SERVER);
		INSTANCE.registerMessage(MsgSetModeSelectionClient.class, MsgSetModeSelectionClient.class, id++, Side.CLIENT);
		INSTANCE.registerMessage(MsgSlashFX.MessageHolder.class, MsgSlashFX.class, id++, Side.CLIENT);
	
	}
	
	public static void sendToAll(IMessage message)
	{
		if(message != null)
		INSTANCE.sendToAll(message);
	}

	public static void sendTo(IMessage message, EntityPlayerMP player)
	{
		INSTANCE.sendTo(message, player);
	}

	public static void sendToDimension(IMessage message, int dimensionId)
	{
		INSTANCE.sendToDimension(message, dimensionId);
	}

	public static void sendToServer(IMessage message)
	{
		INSTANCE.sendToServer(message);
	}
	
}

 

The code above is for the PacketHandler (U idiot I wish u cAN DIE).

 

 

package com.Test.Nothing.ModSlicer.network.message;

import com.Test.Nothing.ModSlicer.slashFX.EffectsRegistry;

import io.netty.buffer.ByteBuf;
import net.minecraft.client.Minecraft;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraftforge.fml.common.network.ByteBufUtils;
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;

//Server Packet
public class MsgSlashFX implements IMessage {
	  public int id = 0;
	  public NBTTagCompound tag = new NBTTagCompound();

	  public MsgSlashFX() {
	  }

	  public MsgSlashFX(int id, NBTTagCompound tag) {
	    this.tag = tag;
	    this.id = id;
	  }

	  @Override
	  public void fromBytes(ByteBuf buf) {
	    id = buf.readInt();
	    tag = ByteBufUtils.readTag(buf);
	  }

	  @Override
	  public void toBytes(ByteBuf buf) {
	    buf.writeInt(id);
	    ByteBufUtils.writeTag(buf, tag);
	  }

	  public static class MessageHolder implements IMessageHandler<MsgSlashFX, IMessage> {
	    @SideOnly(Side.CLIENT)
	    @Override
	    public IMessage onMessage(final MsgSlashFX message, final MessageContext ctx) {
	      Minecraft.getMinecraft().addScheduledTask(() -> {
	        EffectsRegistry.effects.get(message.id).apply(message.tag);
	      });
	      return null;
	    }
	  }
	}

 

The code for the specific message. No need to tackle about EffectsRegistry. Its not the cause of the prob...

 

[20:12:04] [Server thread/ERROR] [FML]: SimpleChannelHandlerWrapper exception
java.lang.NullPointerException: null
	at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770) ~[guava-21.0.jar:?]
	at com.google.common.collect.SingletonImmutableList.<init>(SingletonImmutableList.java:38) ~[guava-21.0.jar:?]
	at com.google.common.collect.ImmutableList.of(ImmutableList.java:93) ~[guava-21.0.jar:?]
	at net.minecraftforge.fml.common.network.FMLOutboundHandler$OutboundTarget$3.selectNetworks(FMLOutboundHandler.java:120) ~[FMLOutboundHandler$OutboundTarget$3.class:?]
	at net.minecraftforge.fml.common.network.FMLOutboundHandler.write(FMLOutboundHandler.java:378) ~[FMLOutboundHandler.class:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:730) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:816) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:723) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:111) ~[MessageToMessageEncoder.class:4.1.9.Final]
	at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) ~[MessageToMessageCodec.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:801) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1032) ~[DefaultChannelPipeline.class:4.1.9.Final]
	at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:296) ~[AbstractChannel.class:4.1.9.Final]
	at net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper.sendToAll(SimpleNetworkWrapper.java:236) [SimpleNetworkWrapper.class:?]
	at com.Test.Nothing.ModSlicer.network.PacketHandler.sendToAll(PacketHandler.java:110) [PacketHandler.class:?]
	at com.Test.Nothing.ModSlicer.slashFX.EntitySlice.onUpdate(EntitySlice.java:107) [EntitySlice.class:?]
	at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2171) [World.class:?]
	at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:871) [WorldServer.class:?]
	at net.minecraft.world.World.updateEntity(World.java:2130) [World.class:?]
	at net.minecraft.world.World.updateEntities(World.java:1931) [World.class:?]
	at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:643) [WorldServer.class:?]
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:842) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743) [MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192) [IntegratedServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592) [MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
[20:12:04] [Netty Server IO #1/ERROR] [FML]: There was a critical exception handling a packet on channel theeightfabledblades
java.lang.NullPointerException: null
	at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770) ~[guava-21.0.jar:?]
	at com.google.common.collect.SingletonImmutableList.<init>(SingletonImmutableList.java:38) ~[guava-21.0.jar:?]
	at com.google.common.collect.ImmutableList.of(ImmutableList.java:93) ~[guava-21.0.jar:?]
	at net.minecraftforge.fml.common.network.FMLOutboundHandler$OutboundTarget$3.selectNetworks(FMLOutboundHandler.java:120) ~[FMLOutboundHandler$OutboundTarget$3.class:?]
	at net.minecraftforge.fml.common.network.FMLOutboundHandler.write(FMLOutboundHandler.java:378) ~[FMLOutboundHandler.class:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:730) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:816) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:723) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:111) ~[MessageToMessageEncoder.class:4.1.9.Final]
	at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) ~[MessageToMessageCodec.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:801) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[AbstractChannelHandlerContext.class:4.1.9.Final]
	at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1032) ~[DefaultChannelPipeline.class:4.1.9.Final]
	at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:296) ~[AbstractChannel.class:4.1.9.Final]
	at net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper.sendToAll(SimpleNetworkWrapper.java:236) ~[SimpleNetworkWrapper.class:?]
	at com.Test.Nothing.ModSlicer.network.PacketHandler.sendToAll(PacketHandler.java:110) ~[PacketHandler.class:?]
	at com.Test.Nothing.ModSlicer.slashFX.EntitySlice.onUpdate(EntitySlice.java:107) ~[EntitySlice.class:?]
	at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2171) ~[World.class:?]
	at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:871) ~[WorldServer.class:?]
	at net.minecraft.world.World.updateEntity(World.java:2130) ~[World.class:?]
	at net.minecraft.world.World.updateEntities(World.java:1931) ~[World.class:?]
	at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:643) ~[WorldServer.class:?]
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:842) ~[MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743) ~[MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192) ~[IntegratedServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592) ~[MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]

 

And the null pointer crash.

 

 

 

Okay, now that the supplied codes are provided, I will describe how it'll occur. The crash will be thrown if I attempt to lets say summon the EntitySlice 6x in a quick session (like for 3 seconds). If not spammed/quickly summoned, the probability of the crash reduces into infinitesimal(?). What is wrong with the code?

 

Edited by [NoOneButNo]
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Whoops I forgot to add some more code:

 

package com.Test.Nothing.ModSlicer.slashFX;

import com.Test.Nothing.ModSlicer.reference.Log;

import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class MysticRegistry {

	 public static int FX_BEAM, FX_SLASH, FX_CUT;
	
	
	public static void init() {	
	    FX_BEAM = EffectsRegistry.registerEffect(nbt -> {
	        EffectBeam beam = new EffectBeam();
	        beam.read(nbt);
	        EffectManager.addEffect(beam);
	        return null;
	      });
	      FX_SLASH = EffectsRegistry.registerEffect(nbt -> {
	        EffectSlash slash = new EffectSlash();
	        slash.read(nbt);
	        EffectManager.addEffect(slash);
	        return null;
	      });
	      FX_CUT = EffectsRegistry.registerEffect(nbt -> {
		        EffectCut slash = new EffectCut();
		        slash.read(nbt);
		        EffectManager.addEffect(slash);
		        return null;
		  });
	      
	 
	}
	
}

 

The code above is for the Mystic Registry, the init() method is called in the FMLPreInitializationEvent. 

 

package com.Test.Nothing.ModSlicer.slashFX;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.BufferBuilder;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class EffectSlash extends Effect {
  public float yaw = 0, pitch = 0, slashAngle = 0, slashWidth = 0, slashRange = 0, slashRadius = 0;

  public EffectSlash() {
  }

  public EffectSlash(int id) {
    super(id);
  }

  public EffectSlash setSlashProperties(float yaw, float pitch, float angle, float radius, float thickness, float arc) {
    this.yaw = yaw;
    this.pitch = pitch;
    this.slashAngle = angle;
    this.slashRadius = radius;
    this.slashWidth = thickness;
    this.slashRange = arc;
    return this;
  }

  @Override
  public void read(NBTTagCompound tag) {
    super.read(tag);
    yaw = tag.getFloat("yaw");
    pitch = tag.getFloat("pitch");
    slashAngle = tag.getFloat("slashAngle");
    slashRadius = tag.getFloat("slashRadius");
    slashWidth = tag.getFloat("slashWidth");
    slashRange = tag.getFloat("slashRange");
  }

  @Override
  public NBTTagCompound write() {
    NBTTagCompound tag = super.write();
    tag.setFloat("yaw", yaw);
    tag.setFloat("pitch", pitch);
    tag.setFloat("slashAngle", slashAngle);
    tag.setFloat("slashRadius", slashRadius);
    tag.setFloat("slashWidth", slashWidth);
    tag.setFloat("slashRange", slashRange);
    return tag;
  }

  @SideOnly(Side.CLIENT)
  @Override
  public void render(float pticks) {
    Minecraft.getMinecraft().renderEngine.bindTexture(RenderUtility.glow_texture);
    Tessellator tess = Tessellator.getInstance();
    BufferBuilder buffer = tess.getBuffer();
    GlStateManager.translate(getInterpX(pticks), getInterpY(pticks), getInterpZ(pticks));
    GlStateManager.rotate(-yaw, 0, 1, 0);
    GlStateManager.rotate(pitch, 1, 0, 0);
    GlStateManager.rotate(-slashAngle, 0, 0, 1);

    buffer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_LMAP_COLOR);
    RenderUtility.renderSlash(buffer, 0, 0, 0, r, g, b, a * getLifeCoeff(pticks), slashRadius, slashWidth, slashRange);
    tess.draw();
  }

}

 

The effect slash code. No need to post the code of Effect because its just duplicate-like (Really trust me).

If you really wanted it, then look below:

package com.Test.Nothing.ModSlicer.slashFX;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.GlStateManager.DestFactor;
import net.minecraft.client.renderer.GlStateManager.SourceFactor;
import net.minecraft.client.renderer.tileentity.TileEntityRendererDispatcher;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class Effect {
  public int lifetime = 0;
  public int maxLife = 0;
  public float r = 0;
  public float g = 0;
  public float b = 0;
  public float a = 0;
  public boolean inited = false;
  public double x = 0;
  public double y = 0;
  public double z = 0;
  public double px = 0;
  public double py = 0;
  public double pz = 0;
  public double vx = 0;
  public double vy = 0;
  public double vz = 0;
  public boolean additive = false;
  public boolean dead = false;
  public int dimId = 0;

  public Effect() {
    //
  }

  public Effect(int id) {
    this.dimId = id;
  }

  public Effect setLife(int l) {
    this.maxLife = l;
    this.lifetime = l;
    return this;
  }

  public Effect setColor(float r, float g, float b, float a) {
    this.r = r;
    this.g = g;
    this.b = b;
    this.a = a;
    return this;
  }

  public Effect setPosition(double x, double y, double z) {
    this.px = x;
    this.py = y;
    this.pz = z;
    this.x = x;
    this.y = y;
    this.z = z;
    return this;
  }

  public Effect setMotion(double vx, double vy, double vz) {
    this.vx = vx;
    this.vy = vy;
    this.vz = vz;
    return this;
  }

  public Effect setAdditive(boolean additive) {
    this.additive = additive;
    return this;
  }

  public void update() {
    if (!inited) {
      inited = true;
    }
    px = x;
    py = y;
    pz = z;
    x += vx;
    y += vy;
    z += vz;

    lifetime--;
    if (lifetime < 0) {
      kill();
    }
  }

  public void kill() {
    dead = true;
  }

  public float getLifeCoeff(float pTicks) {
    return Math.max(0, ((float) lifetime - pTicks) / (float) maxLife);
  }

  public float getInterpX(float pticks) {
    return (float) x * (pticks) + (float) px * (1f - pticks);
  }

  public float getInterpY(float pticks) {
    return (float) y * (pticks) + (float) py * (1f - pticks);
  }

  public float getInterpZ(float pticks) {
    return (float) z * (pticks) + (float) pz * (1f - pticks);
  }

  @SideOnly(Side.CLIENT)
  public void renderTotal(float pticks) {
    if (inited) {
      GlStateManager.enableBlend();
      GlStateManager.enableAlpha();
      GlStateManager.blendFunc(SourceFactor.SRC_ALPHA, additive ? DestFactor.ONE : DestFactor.ONE_MINUS_SRC_ALPHA);
      GlStateManager.depthMask(false);
      int dfunc = GL11.glGetInteger(GL11.GL_DEPTH_FUNC);
      GlStateManager.depthFunc(GL11.GL_LEQUAL);
      int func = GL11.glGetInteger(GL11.GL_ALPHA_TEST_FUNC);
      float ref = GL11.glGetFloat(GL11.GL_ALPHA_TEST_REF);
      GlStateManager.alphaFunc(GL11.GL_ALWAYS, 0);
      GlStateManager.disableCull();
      GlStateManager.shadeModel(GL11.GL_SMOOTH);

      GlStateManager.pushMatrix();
      GlStateManager
          .translate(-TileEntityRendererDispatcher.staticPlayerX, -TileEntityRendererDispatcher.staticPlayerY, -TileEntityRendererDispatcher.staticPlayerZ);

      render(pticks);

      GlStateManager.popMatrix();

      GlStateManager.alphaFunc(func, ref);
      GlStateManager.depthFunc(dfunc);
      GlStateManager.blendFunc(SourceFactor.SRC_ALPHA, DestFactor.ONE_MINUS_SRC_ALPHA);
      GlStateManager.depthMask(true);
      GlStateManager.disableBlend();
    }
  }

  public void read(NBTTagCompound tag) {
    px = x;
    x = tag.getDouble("x");
    py = y;
    y = tag.getDouble("y");
    pz = z;
    z = tag.getDouble("z");
    vx = tag.getDouble("vx");
    vy = tag.getDouble("vy");
    vz = tag.getDouble("vz");
    r = tag.getFloat("r");
    g = tag.getFloat("g");
    b = tag.getFloat("b");
    a = tag.getFloat("a");
    maxLife = tag.getInteger("maxlife");
    lifetime = tag.getInteger("life");
    dimId = tag.getInteger("dim");
    additive = tag.getBoolean("additive");
  }

  public NBTTagCompound write() {
    NBTTagCompound tag = new NBTTagCompound();
    tag.setDouble("x", x);
    tag.setDouble("y", y);
    tag.setDouble("z", z);
    tag.setDouble("vx", vx);
    tag.setDouble("vy", vy);
    tag.setDouble("vz", vz);
    tag.setFloat("r", r);
    tag.setFloat("g", g);
    tag.setFloat("b", b);
    tag.setFloat("a", a);
    tag.setInteger("maxlife", maxLife);
    tag.setInteger("life", lifetime);
    tag.setInteger("dim", dimId);
    tag.setBoolean("additive", additive);
    return tag;
  }

  @SideOnly(Side.CLIENT)
  public void render(float pticks) {

  }

}

 

Edited by [NoOneButNo]
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