Search the Forums BEFORE making a new post.

[1.11.2] [SOLVED!] How do I do Packets

Posted July 17, 20178 yr

Hey, I have an event where an animation is triggered after the player attacks or right clicks the entity. When the entity is attacked or right clicked, it is supposed to trigger new AI (which I got working with ease) and set an animation to open the entity's eyes (which I'm struggling with). I accomplished the AI part with a pair of setters and getters for a boolean which returns true when the event happens. I also got a pair of setters and getters for the model class and set the boolean to equal the boolean in the entity class, as well as an if statement in the livinganimations to trigger the animation, which right now is just a simple edit to the model rotations.

Here is my model class

Spoiler


package com.ninja3659.explorationexpansion.client.model;

import java.awt.print.Book;

import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;
import com.ninja3659.explorationexpansion.util.Utils;

import net.minecraft.client.model.ModelBase;
import net.minecraft.client.model.ModelRenderer;
import net.minecraft.client.renderer.BlockModelShapes;
import net.minecraft.client.renderer.block.model.ModelBakery;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.client.resources.IResourceManager;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.util.math.MathHelper;
import net.minecraftforge.event.entity.living.LivingHurtEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.event.FMLModIdMappingEvent.ModRemapping;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import scala.specialized;

public class ModelBeelzebook extends ModelBase{
	//EntityFlying

	public ModelRenderer book;
	public ModelRenderer BookTop;
	public ModelRenderer BookBottom;
	public ModelRenderer Eye1;
	public ModelRenderer Eye2;
	public ModelRenderer Eye3;
	public ModelRenderer Eye4;
	public ModelRenderer Spine;
	public ModelRenderer pagesT;
	public ModelRenderer pagesB;
	public ModelRenderer page1;
	public ModelRenderer page2;
	public ModelRenderer page3;
	public boolean awake;
	
	public ModelBeelzebook() {
		textureWidth = 128;
		textureHeight = 128;
		
		awake = false;
		book = new ModelRenderer(this, 0, 0);
		book.addBox(0, 0, 0, 0, 0, 0);
		book.setRotationPoint(0, 22, 0);
		
		BookTop = new ModelRenderer(this, 0, 0);
		BookTop.addBox(-10, -1.5f, -14, 20, 1, 14);
		BookTop.setRotationPoint(0, 0, 0);
		setRotation(BookTop, 0, 0, 0);
		book.addChild(BookTop);
		
		Eye1 = new ModelRenderer(this, 0, 32);
		Eye1.addBox(-1, -2, -2, 2, 2, 2);
		Eye1.setRotationPoint(-5, -1, -6);
		setRotation(Eye1, 81, 0, 0);
		BookTop.addChild(Eye1);
		
		Eye2 = new ModelRenderer(this, 0, 36);
		Eye2.addBox(-1, -2, -2, 2, 2, 2);
		Eye2.setRotationPoint(-2, -1, -8);
		setRotation(Eye2, 81, 0, 0);
		BookTop.addChild(Eye2);
		
		Eye3 = new ModelRenderer(this, 0, 40);
		Eye3.addBox(-1, -2, -2, 2, 2, 2);
		Eye3.setRotationPoint(4, 0, 0);
		Eye2.addChild(Eye3);
		
		Eye4 = new ModelRenderer(this, 0, 44);
		Eye4.addBox(-1, -2, -2, 2, 2, 2);
		Eye4.setRotationPoint(10, 0, 0);
		Eye1.addChild(Eye4);
		
		pagesT = new ModelRenderer(this, 0, 48);
		pagesT.addBox(-9, -.5f, -13, 18, 1, 13);
		pagesT.setRotationPoint(0, 0, 0);
		setRotation(pagesT, 0, 0, 0);
		BookTop.addChild(pagesT);
		
		BookBottom = new ModelRenderer(this, 0, 16);
		BookBottom.addBox(-10, .5f, -14, 20, 1, 14);
		BookBottom.setRotationPoint(0, 0, 0);
		book.addChild(BookBottom);
		
		pagesB = new ModelRenderer(this, 0, 48);
		pagesB.addBox(-9, -.5f, -13, 18, 1, 13);
		pagesB.setRotationPoint(0, 0, 0);
		BookBottom.addChild(pagesB);
		
		Spine = new ModelRenderer(this, 68, 13);
		Spine.addBox(-10, -1.5f, 0, 20, 3, 1);
		Spine.setRotationPoint(0, 0, 0);
		book.addChild(Spine);
		
		page1 = new ModelRenderer(this, 9, 32);
		page1.addBox(-1.5f, -19, 0, 3, 4, 0);
		page1.setRotationPoint(0, 0, 0);
		book.addChild(page1);
		
		page2 = new ModelRenderer(this, 9, 32);
		page2.addBox(-1.5f, -24, 0, 3, 4, 0);
		page2.setRotationPoint(0, 0, 0);
		book.addChild(page2);
		
		page3 = new ModelRenderer(this, 9, 32);
		page3.addBox(-1.5f, -29, 0, 3, 4, 0);
		page3.setRotationPoint(0, 0, 0);
		book.addChild(page3);
		
	}
	
	public void setAwake(boolean entityAwake) {
		this.awake = entityAwake;
	}
	
	public float deg2Rad(float d) {
		return d * ((float)Math.PI / 180);
	}
	
	public void setRotation(ModelRenderer model, float x, float y, float z) {
		model.rotateAngleX = deg2Rad(x);
		model.rotateAngleY = deg2Rad(y);
		model.rotateAngleZ  = deg2Rad(z);
	}
	

	@Override
	public void render(Entity entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch, float scale) {
		renderBook((EntityBeelzebook) entity, limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scale);
		
	}
	
	public void renderBook(EntityBeelzebook entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch, float scale) {
		book.render(scale);
		setRotationAngles(limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scale, entity);
	}
	
	@Override
	public void setRotationAngles(float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw,
			float headPitch, float scaleFactor, Entity entityIn) {
		super.setRotationAngles(limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scaleFactor, entityIn);
		BookTop.rotateAngleX = 0;
		BookBottom.rotateAngleX = MathHelper.cos(limbSwing * .666f) * .4F * limbSwingAmount + deg2Rad(20);
		
		if(awake) {
			AwakeAnimation((EntityBeelzebook) entityIn);
			Utils.getLogger().info("awake dude");
		}
		
//		if(entityIn.ticksExisted%60 == 0) {
//			book.rotateAngleX = headPitch * .666f;
//			book.rotateAngleY = netHeadYaw * .666f;
//		}
		deathAnim((EntityBeelzebook)entityIn, limbSwing, limbSwingAmount, ageInTicks);
	}
	
	public void deathAnim(EntityBeelzebook entity, float limbSwing, float limbSwingAmount, float ageInTicks) {
		if (entity.getdeathTime() != 0) {
			BookTop.rotateAngleX = deg2Rad(-(5 * MathHelper.cos(entity.ticksExisted * 2)) - 85);
			BookBottom.rotateAngleX = deg2Rad((5 * MathHelper.cos(entity.ticksExisted * 2)) +85);
		}		
	}	
	
	@Override
	public void setLivingAnimations(EntityLivingBase entitylivingbaseIn, float limbSwing, float limbSwingAmount,
			float partialTickTime) {
		if(awake) {
			AwakeAnimation((EntityBeelzebook) entitylivingbaseIn);
			Utils.getLogger().info("The model's good");
			
		}
		Utils.getLogger().info("hey its living animations");
	}
	
	public void AwakeAnimation(EntityBeelzebook entity) {
		setRotation(Eye1, 33, 0, 0);
		setRotation(Eye2, 33, 0, 0);
		Utils.getLogger().info("animation!");
	}

}

And here is the Entity class

Spoiler


package com.ninja3659.explorationexpansion.client.entities;

import com.ninja3659.explorationexpansion.client.ai.EntityAIWander3d;
import com.ninja3659.explorationexpansion.client.model.ModelBeelzebook;
import com.ninja3659.explorationexpansion.util.Utils;

import net.minecraft.enchantment.EnumEnchantmentType;
import net.minecraft.entity.EntityCreature;
import net.minecraft.entity.EntityFlying;
import net.minecraft.entity.ai.EntityAIAttackMelee;
import net.minecraft.entity.ai.EntityAIBase;
import net.minecraft.entity.ai.EntityAIFindEntityNearestPlayer;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWanderAvoidWater;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.ai.EntityMoveHelper;
import net.minecraft.entity.item.EntityXPOrb;
import net.minecraft.entity.monster.EntityGhast;
import net.minecraft.entity.monster.IMob;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraftforge.event.entity.living.LivingHurtEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class EntityBeelzebook extends EntityFlying implements IMob {

	ModelBeelzebook bookmodel = new ModelBeelzebook();
	public boolean entityAwake;
	
	public EntityBeelzebook(World worldIn) {
		super(worldIn);
		this.experienceValue = 200;
		this.setSize(2, .5f);
		this.moveHelper = new BeelzebookMoveHelper(this);
		moveHelper.setMoveTo(0, 10, 0, 1D);
		this.entityAwake = false;
		
	}
	
	
	@Override
	protected void entityInit() {
		super.entityInit();
	}
	
	
	@Override
	public void onUpdate() {
		super.onUpdate();
		if(entityAwake) {
			//Utils.getLogger().info("AWAKENED");
		}
	}
	
	@Override
	protected void initEntityAI() {
		if(entityAwake) {
			applyAttackAI();
		}
	}
	
	public boolean getentityAwake() {
		return entityAwake;
	}
	
	public void setEntityAwake(boolean truth) {
		this.entityAwake = truth;
	}
	
	
	protected void applyAttackAI() {
		this.tasks.addTask(0, new EntityAIDeath(this, deathTime));
		this.targetTasks.addTask(1, new EntityAIWatchClosest(this, EntityPlayer.class, 32));
		this.targetTasks.addTask(0, new EntityAIFindEntityNearestPlayer(this));
		
	}
	
	@Override
	protected void onDeathUpdate() {

        ++this.deathTime;
        
        if (this.deathTime != 0) {
        }
        
        if (this.deathTime == 200)
        {
            if (!this.world.isRemote && (this.isPlayer() || this.recentlyHit > 0 && this.canDropLoot() && this.world.getGameRules().getBoolean("doMobLoot")))
            {
                int i = this.getExperiencePoints(this.attackingPlayer);
                i = net.minecraftforge.event.ForgeEventFactory.getExperienceDrop(this, this.attackingPlayer, i);
                while (i > 0)
                {
                    int j = EntityXPOrb.getXPSplit(i);
                    i -= j;
                    this.world.spawnEntity(new EntityXPOrb(this.world, this.posX, this.posY, this.posZ, j));
                }
            }
            
            this.setDead();

            for (int k = 0; k < 20; ++k)
            {
                double d2 = this.rand.nextGaussian() * 0.02D;
                double d0 = this.rand.nextGaussian() * 0.02D;
                double d1 = this.rand.nextGaussian() * 0.02D;
                this.world.spawnParticle(EnumParticleTypes.EXPLOSION_NORMAL, this.posX + (double)(this.rand.nextFloat() * this.width * 2.0F) - (double)this.width, this.posY + (double)(this.rand.nextFloat() * this.height), this.posZ + (double)(this.rand.nextFloat() * this.width * 2.0F) - (double)this.width, d2, d0, d1, new int[0]);
            }
        }		
	}
	
	
	public int getdeathTime() {
		return this.deathTime;
	}
	
	
	
	@Override
	public void onLivingUpdate() {
		super.onLivingUpdate();
		if(entityAwake) {
			bookmodel.setAwake(entityAwake);
			Utils.getLogger().info("Living Update works");
		}
	}
	
	static class BeelzebookMoveHelper extends EntityMoveHelper {
		private final EntityBeelzebook parentEntity;
		private int courseCooldown;
		
		public BeelzebookMoveHelper(EntityBeelzebook book) {
			super(book);
			this.parentEntity = book;
		}
		
		public void onUpdateMoveHelper() {
			if (this.action == EntityMoveHelper.Action.MOVE_TO) {
				double dx = this.posX - this.parentEntity.posX;
				double dy = this.posY - this.parentEntity.posY;
				double dz = this.posZ - this.parentEntity.posZ;
				double df = dx * dx + dy * dy + dz * dz;
				
				if(this.courseCooldown-- <=0) {
					this.courseCooldown += this.parentEntity.getRNG().nextInt(5) + 2;
					df = (double)MathHelper.sqrt(df);
					
					if(this.isNotColliding(this.posX, this.posY, this.posZ, df)) {
						this.parentEntity.motionX += dx/df * .1D;
						this.parentEntity.motionY += dy/df * .1D;
						this.parentEntity.motionZ += dz/df * .1D;
					}
					else {
						this.action = EntityMoveHelper.Action.WAIT;
					}
				}
			}
		}
		
		private boolean isNotColliding(double x, double y, double z, double dividend) {
			double d0 = (x - this.parentEntity.posX) / dividend;
			double d1 = (y - this.parentEntity.posY) / dividend;
			double d2 = (z - this.parentEntity.posZ) / dividend;
			AxisAlignedBB ax = this.parentEntity.getEntityBoundingBox();
		
			for (int i =1; (double)i < dividend; ++i) {
				ax = ax.offset(d0, d1, d2);
				
				if(!this.parentEntity.world.getCollisionBoxes(this.parentEntity, ax).isEmpty()) {
					return false;
				}
			}
			
			return true;
		}
	}
}

class EntityAIDeath extends EntityAIBase{

	protected int death;
	protected EntityBeelzebook book;
	
	public EntityAIDeath(EntityBeelzebook entity, int deathT) {
		this.death = deathT;
		this.book = entity;
		setMutexBits(8);
	}
	
	@Override
	public boolean shouldExecute() {
		if (death != 0) {
			return true;
		}
		else {
			return false;
		}
	}
	
	@Override
	public boolean continueExecuting() {
		// TODO Auto-generated method stub
		return false;
	}
	
	@Override
	public void startExecuting() {
		this.book.getMoveHelper().setMoveTo(book.posX, book.posY + 10, book.posZ, 1D);
	}
	
}

Event class:

Spoiler


package com.ninja3659.explorationexpansion.events;

import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;

import net.minecraftforge.event.entity.living.LivingHurtEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class BeelzebookAwakeEvent {
			
		EntityBeelzebook book;
	
		@SubscribeEvent
		public void onEvent(LivingHurtEvent event) {
			if(event.getEntityLiving() instanceof EntityBeelzebook) {
				book = (EntityBeelzebook) event.getEntityLiving();
				book.setEntityAwake(true);
				
			}
		}
}

EDIT: So i got the boolean in the model class to set to true, the if statement in setLivingAnimation just isn't working

EDIT2: Yeah, the boolean is set to true and the AwakeAnimation IS being called, but for some reason, it isn't picking up the boolean as true

Edited July 19, 20178 yr by GooberGunter

Quote

July 17, 20178 yr

Author

Update: So it looks like the boolean is set to true when the setter is called but doesn't remain true

Unfortunately, this is as far as I can figure out. I can't think of a solution for this and I haven't really worked with triggered animations before

Edited July 17, 20178 yr by GooberGunter

Quote

July 17, 20178 yr

You're setting awake on the server.

You're expecting the client to render something.

You need to tell the client that the data has changed.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable. If you think this is the case, JUST REPORT ME. Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

July 18, 20178 yr

Author

Ah, that explains it. I'm very rough on serverside vs. clientside knowledge. Thanks!

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

Author

On second thought, I don't know how to do that

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

The magic of packets

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

July 18, 20178 yr

Author

Oh, fun.

Quote

July 18, 20178 yr

Author

Alright I've Been looking around for a while and I can't find any good tutorials on packets. I mean I understand the whole making a class for the message that has methods to send info to and from bits, but I don't know how it all fits together. Why do I need a message handler? How do I set information to the packet? How do I get the information? The forge documentation didn't give me much insight

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

I follow and watch these people. I beleive there are some network tutorials in there somewhere. Hopefully it can help you out.

https://www.youtube.com/playlist?list=PLBB_qIzJkK4tYfNWvvQ0LwKIcIdR0aU5h

https://www.youtube.com/playlist?list=PLpKu3PfwdqHRA8aoa4RAzO9camNR9Tm45

https://www.youtube.com/playlist?list=PL5oCR-MRH-12rXI0USklAz6rQagXr4nl5

Quote

July 18, 20178 yr

Author

Thanks! I'll check them out and update if I found a fix

Quote

July 18, 20178 yr

This might work for you: https://mcforge.readthedocs.io/en/latest/networking/

And have you already looked at the mc Dog? Not sure if it can help you, but when it sits down that data is sent to all the other clients too. Might be useful.

Here could be your advertisement!

Quote

July 18, 20178 yr

Author

So I followed cjminecraft's tutorial, only understanding what I'm doing here and there, and I got myself a promising error:

Spoiler

[23:16:36] [Client thread/ERROR]: Couldn't render entity
java.lang.NullPointerException
   at com.ninja3659.explorationexpansion.client.model.ModelBeelzebook.AwakeAnimation(ModelBeelzebook.java:193) ~[ModelBeelzebook.class:?]
   at com.ninja3659.explorationexpansion.client.model.ModelBeelzebook.setRotationAngles(ModelBeelzebook.java:172) ~[ModelBeelzebook.class:?]
   at com.ninja3659.explorationexpansion.client.model.ModelBeelzebook.renderBook(ModelBeelzebook.java:155) ~[ModelBeelzebook.class:?]
   at com.ninja3659.explorationexpansion.client.model.ModelBeelzebook.render(ModelBeelzebook.java:149) ~[ModelBeelzebook.class:?]
   at net.minecraft.client.renderer.entity.RenderLivingBase.renderModel(RenderLivingBase.java:259) ~[RenderLivingBase.class:?]
   at net.minecraft.client.renderer.entity.RenderLivingBase.doRender(RenderLivingBase.java:181) [RenderLivingBase.class:?]
   at net.minecraft.client.renderer.entity.RenderLiving.doRender(RenderLiving.java:51) [RenderLiving.class:?]
   at net.minecraft.client.renderer.entity.RenderLiving.doRender(RenderLiving.java:16) [RenderLiving.class:?]
   at net.minecraft.client.renderer.entity.RenderManager.doRenderEntity(RenderManager.java:389) [RenderManager.class:?]
   at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:373) [RenderManager.class:?]
   at net.minecraft.client.renderer.RenderGlobal.renderEntities(RenderGlobal.java:653) [RenderGlobal.class:?]
   at net.minecraft.client.renderer.EntityRenderer.renderWorldPass(EntityRenderer.java:1389) [EntityRenderer.class:?]
   at net.minecraft.client.renderer.EntityRenderer.renderWorld(EntityRenderer.java:1303) [EntityRenderer.class:?]
   at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1106) [EntityRenderer.class:?]
   at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1140) [Minecraft.class:?]
   at net.minecraft.client.Minecraft.run(Minecraft.java:407) [Minecraft.class:?]
   at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_131]
   at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
   at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_131]
   at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
   at GradleStart.main(GradleStart.java:26) [start/:?]

Model Code: Most of the important stuff is the AwakeAnimation

Spoiler


package com.ninja3659.explorationexpansion.client.model;

import java.awt.print.Book;

import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;
import com.ninja3659.explorationexpansion.networking.NeemPacketHandler;
import com.ninja3659.explorationexpansion.networking.PacketGetAwaken;
import com.ninja3659.explorationexpansion.util.Utils;

import net.minecraft.client.model.ModelBase;
import net.minecraft.client.model.ModelRenderer;
import net.minecraft.client.renderer.BlockModelShapes;
import net.minecraft.client.renderer.block.model.ModelBakery;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.client.resources.IResourceManager;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.network.NetHandlerPlayServer;
import net.minecraft.server.network.NetHandlerStatusServer;
import net.minecraft.util.math.MathHelper;
import net.minecraftforge.event.entity.living.LivingHurtEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.SidedProxy;
import net.minecraftforge.fml.common.event.FMLModIdMappingEvent.ModRemapping;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import scala.specialized;

public class ModelBeelzebook extends ModelBase{
	//EntityFlying

	public ModelRenderer book;
	public ModelRenderer BookTop;
	public ModelRenderer BookBottom;
	public ModelRenderer Eye1;
	public ModelRenderer Eye2;
	public ModelRenderer Eye3;
	public ModelRenderer Eye4;
	public ModelRenderer Spine;
	public ModelRenderer pagesT;
	public ModelRenderer pagesB;
	public ModelRenderer page1;
	public ModelRenderer page2;
	public ModelRenderer page3;
	public boolean awake = false;
	
	public static int sync = 0;
	
	public ModelBeelzebook() {
		textureWidth = 128;
		textureHeight = 128;
		
	
		book = new ModelRenderer(this, 0, 0);
		book.addBox(0, 0, 0, 0, 0, 0);
		book.setRotationPoint(0, 22, 0);
		
		BookTop = new ModelRenderer(this, 0, 0);
		BookTop.addBox(-10, -1.5f, -14, 20, 1, 14);
		BookTop.setRotationPoint(0, 0, 0);
		setRotation(BookTop, 0, 0, 0);
		book.addChild(BookTop);
		
		Eye1 = new ModelRenderer(this, 0, 32);
		Eye1.addBox(-1, -2, -2, 2, 2, 2);
		Eye1.setRotationPoint(-5, -1, -6);
		setRotation(Eye1, 81, 0, 0);
		BookTop.addChild(Eye1);
		
		Eye2 = new ModelRenderer(this, 0, 36);
		Eye2.addBox(-1, -2, -2, 2, 2, 2);
		Eye2.setRotationPoint(-2, -1, -8);
		setRotation(Eye2, 81, 0, 0);
		BookTop.addChild(Eye2);
		
		Eye3 = new ModelRenderer(this, 0, 40);
		Eye3.addBox(-1, -2, -2, 2, 2, 2);
		Eye3.setRotationPoint(4, 0, 0);
		Eye2.addChild(Eye3);
		
		Eye4 = new ModelRenderer(this, 0, 44);
		Eye4.addBox(-1, -2, -2, 2, 2, 2);
		Eye4.setRotationPoint(10, 0, 0);
		Eye1.addChild(Eye4);
		
		pagesT = new ModelRenderer(this, 0, 48);
		pagesT.addBox(-9, -.5f, -13, 18, 1, 13);
		pagesT.setRotationPoint(0, 0, 0);
		setRotation(pagesT, 0, 0, 0);
		BookTop.addChild(pagesT);
		
		BookBottom = new ModelRenderer(this, 0, 16);
		BookBottom.addBox(-10, .5f, -14, 20, 1, 14);
		BookBottom.setRotationPoint(0, 0, 0);
		book.addChild(BookBottom);
		
		pagesB = new ModelRenderer(this, 0, 48);
		pagesB.addBox(-9, -.5f, -13, 18, 1, 13);
		pagesB.setRotationPoint(0, 0, 0);
		BookBottom.addChild(pagesB);
		
		Spine = new ModelRenderer(this, 68, 13);
		Spine.addBox(-10, -1.5f, 0, 20, 3, 1);
		Spine.setRotationPoint(0, 0, 0);
		book.addChild(Spine);
		
		page1 = new ModelRenderer(this, 9, 32);
		page1.addBox(-1.5f, -19, 0, 3, 4, 0);
		page1.setRotationPoint(0, 0, 0);
		book.addChild(page1);
		
		page2 = new ModelRenderer(this, 9, 32);
		page2.addBox(-1.5f, -24, 0, 3, 4, 0);
		page2.setRotationPoint(0, 0, 0);
		book.addChild(page2);
		
		page3 = new ModelRenderer(this, 9, 32);
		page3.addBox(-1.5f, -29, 0, 3, 4, 0);
		page3.setRotationPoint(0, 0, 0);
		book.addChild(page3);
		
	}
	
	public void setAwake(boolean entityAwake) {
		awake = entityAwake;
		Utils.getLogger().info("Awake is now: " + awake);
	}//used to set the awake animation to true
	
	public boolean getAwake() {
		Utils.getLogger().info("FETCHED AWAKE IS: " + awake);
		return awake;
	
	}
	
	public float deg2Rad(float d) {
		return d * ((float)Math.PI / 180);
	}
	
	public void setRotation(ModelRenderer model, float x, float y, float z) {
		model.rotateAngleX = deg2Rad(x);
		model.rotateAngleY = deg2Rad(y);
		model.rotateAngleZ  = deg2Rad(z);
	}
	

	@Override
	public void render(Entity entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch, float scale) {
		renderBook((EntityBeelzebook) entity, limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scale);
		
	}
	
	public void renderBook(EntityBeelzebook entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch, float scale) {
		book.render(scale);
		setRotationAngles(limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scale, entity);
	}
	
	@Override
	public void setRotationAngles(float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw,
			float headPitch, float scaleFactor, Entity entityIn) {
		super.setRotationAngles(limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scaleFactor, entityIn);
		BookTop.rotateAngleX = 0;
		BookBottom.rotateAngleX = MathHelper.cos(limbSwing * .666f) * .4F * limbSwingAmount + deg2Rad(20);
		
		
		
//		if(entityIn.ticksExisted%60 == 0) {
//			book.rotateAngleX = headPitch * .666f;
//			book.rotateAngleY = netHeadYaw * .666f;
//		}
		
		AwakeAnimation((EntityBeelzebook) entityIn);
		deathAnim((EntityBeelzebook)entityIn, limbSwing, limbSwingAmount, ageInTicks);
	}
	
	public void deathAnim(EntityBeelzebook entity, float limbSwing, float limbSwingAmount, float ageInTicks) {
		if (entity.getdeathTime() != 0) {
			BookTop.rotateAngleX = deg2Rad(-(5 * MathHelper.cos(entity.ticksExisted * 2)) - 85);
			BookBottom.rotateAngleX = deg2Rad((5 * MathHelper.cos(entity.ticksExisted * 2)) +85);
		}		
	}	
	
	@Override
	public void setLivingAnimations(EntityLivingBase entitylivingbaseIn, float limbSwing, float limbSwingAmount,
			float partialTickTime) {
		
	}
	
	public void AwakeAnimation(EntityBeelzebook entity) {
		sync++;
		sync %= 10;
		if(sync == 0) {
			NeemPacketHandler.INSTANCE.sendToServer(new PacketGetAwaken(entity.getentityAwake(), "com.ninja3659.explorationexpansion.client.model.ModelBeelzebook", "awake", entity.getEntityId()));
		}
		
		if(this.getAwake()) {
			this.setRotation(Eye1, 33, 0, 0);
			this.setRotation(Eye2, 33, 0, 0);
			Utils.getLogger().info("animation!");
		}
	}//opens the book's eyes

}

Here's just the AwakeAnimation method:

Spoiler


public void AwakeAnimation(EntityBeelzebook entity) {
		sync++;
		sync %= 10;
		if(sync == 0) {
			NeemPacketHandler.INSTANCE.sendToServer(new PacketGetAwaken(entity.getentityAwake(), "com.ninja3659.explorationexpansion.client.model.ModelBeelzebook", "awake", entity.getEntityId()));
		}
		
		if(this.getAwake()) {
			this.setRotation(Eye1, 33, 0, 0);
			this.setRotation(Eye2, 33, 0, 0);
			Utils.getLogger().info("animation!");
		}

Packet Handler:

Spoiler


package com.ninja3659.explorationexpansion.networking;

import com.ninja3659.explorationexpansion.Reference;
import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;

import net.minecraft.entity.Entity;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
import net.minecraftforge.fml.relauncher.Side;

//Sweet baby Jesus help me

public class NeemPacketHandler {

	public static SimpleNetworkWrapper INSTANCE; 
	private static int id=0;
	public NeemPacketHandler() {
		
	}//TargetPoint
	
	public static int nextID() {
		return id++;
	}
	
	public static void registerMessages(String channelName) {
		INSTANCE = NetworkRegistry.INSTANCE.newSimpleChannel(channelName);
		
		//server packets
		INSTANCE.registerMessage(PacketGetAwaken.Handler.class, PacketGetAwaken.class, nextID(), Side.SERVER);
	
		//client Packets
		INSTANCE.registerMessage(PacketReturnAwaken.Handler.class, PacketReturnAwaken.class, nextID(), Side.CLIENT);
	}
	
	

}

PacketGetAwaken:

Spoiler


package com.ninja3659.explorationexpansion.networking;

import com.google.common.base.Predicate;
import com.jcraft.jogg.Packet;
import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;
import com.ninja3659.explorationexpansion.util.Utils;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import net.minecraftforge.fml.common.FMLCommonHandler;
import net.minecraftforge.fml.common.network.ByteBufUtils;
import net.minecraftforge.fml.common.network.NetworkRegistry.TargetPoint;
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;

public class PacketGetAwaken implements IMessage{
	
	private boolean messageValid;
	private boolean awaken;
	private int entityid;

	private String className;
	private String awakenFieldName;
	
	public PacketGetAwaken() {
		// TODO Auto-generated constructor stub
		this.messageValid = false;//sets the message validity to false
	}
	
	public PacketGetAwaken(boolean awaken, String className, String awakenFieldName, int entityid) {
		this.awaken = awaken;
		this.className = className;
		this.awakenFieldName = awakenFieldName;
		this.messageValid = true;
		this.entityid = entityid;
		
	}
	
	@Override
	public void fromBytes(ByteBuf buf) {
		try {
			this.awaken = buf.readBoolean();//reads it
			this.className = ByteBufUtils.readUTF8String(buf);
			this.awakenFieldName = ByteBufUtils.readUTF8String(buf);
			this.entityid = buf.readInt();
		}catch(IndexOutOfBoundsException ioe) {
			Utils.getLogger().catching(ioe);
			return;
		}
	}

	@Override
	public void toBytes(ByteBuf buf) {
		if(!this.messageValid) {
			return;//bounces back if message isn't valid
		}
		
		buf.writeBoolean(awaken);//writes the boolean
		buf.writeInt(entityid);
		ByteBufUtils.writeUTF8String(buf, this.className);
		ByteBufUtils.writeUTF8String(buf, this.awakenFieldName);
	}
	
	public static class Handler implements IMessageHandler<PacketGetAwaken, IMessage>{

		@Override
		public IMessage onMessage(PacketGetAwaken message, MessageContext ctx) {
			if(!message.messageValid && ctx.side != Side.SERVER)
				return null;
			FMLCommonHandler.instance().getWorldThread(ctx.netHandler).addScheduledTask(() -> processMessage(message, ctx));
			return null;
		}
		
		void processMessage(PacketGetAwaken message, MessageContext ctx) {
			EntityBeelzebook eb = (EntityBeelzebook) ctx.getServerHandler().playerEntity.getServerWorld().getEntityByID(message.entityid);	
			NeemPacketHandler.INSTANCE.sendToAllAround(new PacketReturnAwaken(eb.entityAwake, message.className, message.awakenFieldName), new TargetPoint(0, eb.getPosX(), eb.getPosY(), eb.getPosZ(), 100));
		}
	
	}
}

PacketReturnAwaken:

Spoiler


package com.ninja3659.explorationexpansion.networking;


import java.lang.reflect.Field;

import org.lwjgl.BufferUtils;

import com.ninja3659.explorationexpansion.util.Utils;

import io.netty.buffer.ByteBuf;
import net.minecraft.client.Minecraft;
import net.minecraftforge.common.MinecraftForge;
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;

public class PacketReturnAwaken implements IMessage{

	private boolean messageValid;
	
	private boolean awake;
	
	private String className;
	private String awakenFieldName;
	
	public PacketReturnAwaken() {
		this.messageValid = false;
	}
	
	public PacketReturnAwaken(boolean awake, String className, String awakenFieldName) {
		this.awake = awake;
		this.className = className;
		this.awakenFieldName = awakenFieldName;
		this.messageValid = true;

	}
	
	
	@Override
	public void fromBytes(ByteBuf buf) {
		try {
			this.awake = buf.readBoolean();
			this.className = ByteBufUtils.readUTF8String(buf);
			this.awakenFieldName = ByteBufUtils.readUTF8String(buf);
		}catch (IndexOutOfBoundsException ioe) {
			Utils.getLogger().catching(ioe);
			return;
		}
		this.messageValid = true;
	}

	@Override
	public void toBytes(ByteBuf buf) {
		if(!this.messageValid)
			return;
		buf.writeBoolean(awake);
		ByteBufUtils.writeUTF8String(buf, className);
		ByteBufUtils.writeUTF8String(buf, awakenFieldName);
	}
	
	public static class Handler implements IMessageHandler<PacketReturnAwaken, IMessage>{

		@Override
		public IMessage onMessage(PacketReturnAwaken message, MessageContext ctx) {
			if(!message.messageValid && ctx.side != Side.CLIENT) {
				return null;
			}
			
			Minecraft.getMinecraft().addScheduledTask(() -> proccessMessage(message));
			
			return null;
		}

		void proccessMessage(PacketReturnAwaken message) {
			try {
				Class clazz = Class.forName(message.className);
				Field awakeField = clazz.getDeclaredField(message.awakenFieldName);
				awakeField.setBoolean(clazz, message.awake);
			}catch(Exception e) {
				Utils.getLogger().catching(e);
			}
		}
	}
}

Now you'll probably see a lot of weird things, but, like I said, I kinda just tumbled through this.

Usually, I'm able to figure it out, but Networking is something I have never worked with

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

java.lang.NullPointerException
    at com.ninja3659.explorationexpansion.client.model.ModelBeelzebook.AwakeAnimation(ModelBeelzebook.java:193) ~[ModelBeelzebook.class:?]

Something is null where it shouldn't be. I'm guessing line 193 is probably this one, right?

NeemPacketHandler.INSTANCE.sendToServer(new PacketGetAwaken(entity.getentityAwake(), "com.ninja3659.explorationexpansion.client.model.ModelBeelzebook", "awake", entity.getEntityId()));

Where do you call the registerMessages method of your PacketHandler?

Quote

July 18, 20178 yr

Author

Yeah...I had no idea what was going on in the tutorial. The class name and field name were supposed to be "java reflection" but I never saw the point in it. But considering the fact that I've never done this before, I figured, what do I know.

I updated the code, it should be a little better but I still don't know when and where to call the sendTo part.

NeemPacketHandler:

Spoiler


package com.ninja3659.explorationexpansion.networking;

import com.ninja3659.explorationexpansion.Reference;
import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;

import net.minecraft.entity.Entity;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.Mod.Instance;
import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
import net.minecraftforge.fml.relauncher.Side;

//Sweet baby Jesus help me

public class NeemPacketHandler {

	public static SimpleNetworkWrapper INSTANCE; 
	private static int id=0;
	public NeemPacketHandler() {
		
	}//TargetPoint
	
	public static int nextID() {
		return id++;
	}
	
	public static void registerMessages(String channelName) {
		INSTANCE = NetworkRegistry.INSTANCE.newSimpleChannel(channelName);
		
		//server packets
	
		//client Packets
		INSTANCE.registerMessage(PacketReturnAwaken.Handler.class, PacketReturnAwaken.class, nextID(), Side.CLIENT);
	}
	
	

}

PacketReturnAwaken:

Spoiler


package com.ninja3659.explorationexpansion.networking;


import java.lang.reflect.Field;

import org.lwjgl.BufferUtils;

import com.ninja3659.explorationexpansion.util.Utils;

import io.netty.buffer.ByteBuf;
import net.minecraft.client.Minecraft;
import net.minecraftforge.common.MinecraftForge;
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;

public class PacketReturnAwaken implements IMessage{

	private boolean messageValid;
	
	private boolean awake;
	
	public PacketReturnAwaken() {
		this.messageValid = false;
	}
	
	public PacketReturnAwaken(boolean awake) {
		this.awake = awake;
		this.messageValid = true;

	}
	
	
	@Override
	public void fromBytes(ByteBuf buf) {
		try {
			this.awake = buf.readBoolean();
		}catch (IndexOutOfBoundsException ioe) {
			Utils.getLogger().catching(ioe);
			return;
		}
		this.messageValid = true;
	}

	@Override
	public void toBytes(ByteBuf buf) {
		if(!this.messageValid)
			return;
		buf.writeBoolean(awake);
	}
	
	public static class Handler implements IMessageHandler<PacketReturnAwaken, IMessage>{

		@Override
		public IMessage onMessage(PacketReturnAwaken message, MessageContext ctx) {
			if(!message.messageValid && ctx.side != Side.CLIENT) {
				return null;
			}
			
			Minecraft.getMinecraft().addScheduledTask(() -> proccessMessage(message));
			
			return null;
		}

		void proccessMessage(PacketReturnAwaken message) {
			try {
				
			}catch(Exception e) {
				Utils.getLogger().catching(e);
			}
		}
	}
}

Also, I register the messages through the common proxy (which may or may not be a bad idea; which I don't doubt) in a method called preInit() which is called in the preInit message in the main core mod class. But naturally, when I ran that code, I forgot to call the proxy method.

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

Your packet doesn't do anything when it arrives.

		void proccessMessage(PacketReturnAwaken message) {
			try {
				
			}catch(Exception e) {
				Utils.getLogger().catching(e);
			}
		}

So blank, much void, many noop. Wow.

Additionally, your packet doesn't have any way of finding the entity it needs to awaken.

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

July 18, 20178 yr

Author

So I figured it could find the entity via entityid through this line,

EntityBeelzebook eb = (EntityBeelzebook) ctx.getServerHandler().playerEntity.getServerWorld().getEntityByID(id);

so I created another variable int entityid and wrote the code to and from bytes, I just don't know where I should go from here

Spoiler


public class PacketReturnAwaken implements IMessage{

	private boolean messageValid;
	
	private boolean awake;
	private int entityid;
	
	public PacketReturnAwaken() {
		this.messageValid = false;
	}
	
	public PacketReturnAwaken(boolean awake, int id) {
		this.awake = awake;
		this.entityid = id;
		this.messageValid = true;

	}
	
	
	@Override
	public void fromBytes(ByteBuf buf) {
		try {
			this.awake = buf.readBoolean();
			this.entityid = buf.readInt();
		}catch (IndexOutOfBoundsException ioe) {
			Utils.getLogger().catching(ioe);
			return;
		}
		this.messageValid = true;
	}

	@Override
	public void toBytes(ByteBuf buf) {
		if(!this.messageValid)
			return;
		buf.writeBoolean(awake);
		buf.writeInt(entityid);
	}
	
	public static class Handler implements IMessageHandler<PacketReturnAwaken, IMessage>{

		@Override
		public IMessage onMessage(PacketReturnAwaken message, MessageContext ctx) {
			if(!message.messageValid && ctx.side != Side.CLIENT) {
				return null;
			}
			
			Minecraft.getMinecraft().addScheduledTask(() -> proccessMessage(message, ctx, message.entityid));
			
			return null;
		}

		void proccessMessage(PacketReturnAwaken message, MessageContext ctx, int id) {
			try {
				EntityBeelzebook eb = (EntityBeelzebook) ctx.getServerHandler().playerEntity.getServerWorld().getEntityByID(id);
				NeemPacketHandler.INSTANCE.sendToAll(new PacketReturnAwaken(eb.getentityAwake(), eb.getEntityId()));

			}catch(Exception e) {
				Utils.getLogger().catching(e);
			}
		}
	}
}

What code belongs in the handler and how do I connect the variables in the constructor of the message to the variables in my entity class?

EDIT: Ok so I think I'm good storing the boolean from the entity to the packet. I just don't know how to update the other boolean in my model class to the packet one

Also I know that send to all is a very bad idea for this, but I can't get the entity tracker working right now and since I'm the only one testing, I'll just put it in for now and fix it later when the actual packet works

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

Author

Wait, would I set the boolean in the model class to the packet boolean in the message handler?

EDIT: I looked back at the forge documentation and I got an idea, I'm about to test this

PacketReturnAwake:

Spoiler


package com.ninja3659.explorationexpansion.networking;


import java.lang.reflect.Field;

import org.lwjgl.BufferUtils;

import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;
import com.ninja3659.explorationexpansion.util.Utils;

import io.netty.buffer.ByteBuf;
import net.minecraft.client.Minecraft;
import net.minecraft.entity.EntityTracker;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraftforge.common.MinecraftForge;
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;

public class PacketReturnAwaken implements IMessage{

	private boolean messageValid;
	
	private boolean awake;
	private int entityid;
	
	public PacketReturnAwaken() {
		this.messageValid = false;
	}
	
	public PacketReturnAwaken(boolean awake, int id) {
		this.awake = awake;
		this.entityid = id;
		this.messageValid = true;

	}
	
	
	@Override
	public void fromBytes(ByteBuf buf) {
		try {
			this.awake = buf.readBoolean();
			this.entityid = buf.readInt();
		}catch (IndexOutOfBoundsException ioe) {
			Utils.getLogger().catching(ioe);
			return;
		}
		this.messageValid = true;
	}

	@Override
	public void toBytes(ByteBuf buf) {
		if(!this.messageValid)
			return;
		buf.writeBoolean(awake);
		buf.writeInt(entityid);
	}
	
	public static class Handler implements IMessageHandler<PacketReturnAwaken, IMessage>{

		@Override
		public IMessage onMessage(PacketReturnAwaken message, MessageContext ctx) {
		//	if(!message.messageValid && ctx.side != Side.CLIENT) {
		//		return null;
		//	}
			
			Minecraft.getMinecraft().addScheduledTask(() -> proccessMessage(message, ctx, message.entityid));
			
			return null;
		}

		void proccessMessage(PacketReturnAwaken message, MessageContext ctx, int id) {
			try {
				EntityBeelzebook eb = (EntityBeelzebook) ctx.getServerHandler().playerEntity.getServerWorld().getEntityByID(id);
				eb.getModel().awake = message.awake;
			}catch(Exception e) {
				Utils.getLogger().catching(e);
			}
		}
	}
}

And the Method in EntityBeelzebook:

Spoiler


@Override
	public void onLivingUpdate() {
		super.onLivingUpdate();
		if(entityAwake && !bookmodel.awake) {
			bookmodel.setAwake(entityAwake);
			//Utils.getLogger().info("Living Update works");
		}
		if(entityAwake) {
			applyAttackAI();
		}
		sync++;
		sync %= 10;
		if(sync == 0) {
			NeemPacketHandler.INSTANCE.sendToAll(new PacketReturnAwaken(this.getentityAwake(), this.getEntityId()));
		}
	}

it gave me an error about casting NetHandlerPlayClient to NetHanlderPlayServer at the declaration of eb

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

Random question: why do uou pass both message (which you use to pull message.awake) and message.id?

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

July 18, 20178 yr

Author

I pass the message. id to put in the entityid for the initialization of the eb variable so that I could use the getModel() method in my EntityBeelzebook class and have access from there. Without the id i can't initialize it. Why? is there a better way?

Initialization is my weakness

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

If you're passing the message itself as a parameter, then you can access the message's entityid field locally in the method - by passing it separately you're basically passing the same information to the method twice.

1 hour ago, GooberGunter said:

it gave me an error about casting NetHandlerPlayClient to NetHanlderPlayServer at the declaration of eb

Post the error.

Edited July 18, 20178 yr by Jay Avery

Quote

July 18, 20178 yr

Author

Here's the error

Spoiler

[09:35:35] [Client thread/ERROR] [neem]: catching
java.lang.ClassCastException: net.minecraft.client.network.NetHandlerPlayClient cannot be cast to net.minecraft.network.NetHandlerPlayServer
   at net.minecraftforge.fml.common.network.simpleimpl.MessageContext.getServerHandler(MessageContext.java:55) ~[MessageContext.class:?]
   at com.ninja3659.explorationexpansion.networking.PacketReturnAwaken$Handler.proccessMessage(PacketReturnAwaken.java:76) ~[PacketReturnAwaken$Handler.class:?]
   at com.ninja3659.explorationexpansion.networking.PacketReturnAwaken$Handler.lambda$0(PacketReturnAwaken.java:69) ~[PacketReturnAwaken$Handler.class:?]
   at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_131]
   at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_131]
   at net.minecraft.util.Util.runTask(Util.java:29) [Util.class:?]
   at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1109) [Minecraft.class:?]
   at net.minecraft.client.Minecraft.run(Minecraft.java:407) [Minecraft.class:?]
   at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_131]
   at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
   at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_131]
   at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_131]
   at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
   at GradleStart.main(GradleStart.java:26) [start/:?]

And I got rid of int id in processMessage and replaced it with message.entityid

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

Author

Then how should I initialize eb?

Wait. I think I have an idea.

Edit: Nope, no I don't

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

On the client, you can use Minecraft.getMinecraft().world.

Quote

July 18, 20178 yr

Author

So I have it all set up, but the boolean awake in the model class is Not being set to true for some reason

PacketReturnAwaken:

Spoiler


package com.ninja3659.explorationexpansion.networking;


import java.lang.reflect.Field;

import org.lwjgl.BufferUtils;

import com.google.common.primitives.Bytes;
import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;
import com.ninja3659.explorationexpansion.client.model.ModelBeelzebook;
import com.ninja3659.explorationexpansion.util.Utils;

import io.netty.buffer.ByteBuf;
import net.minecraft.client.Minecraft;
import net.minecraft.entity.EntityTracker;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraftforge.common.MinecraftForge;
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;

public class PacketReturnAwaken implements IMessage{

	private boolean messageValid;
	
	private boolean awake;
	private int entityid;
	
	
	public PacketReturnAwaken() {
		this.messageValid = false;
	}
	
	public PacketReturnAwaken(boolean awake, int id) {
		this.awake = awake;
		this.entityid = id;
		this.messageValid = true;

	}
	
	
	@Override
	public void fromBytes(ByteBuf buf) {
		try {
			this.awake = buf.readBoolean();
			this.entityid = buf.readInt();
		}catch (IndexOutOfBoundsException ioe) {
			Utils.getLogger().catching(ioe);
			return;
		}
		this.messageValid = true;
	}

	@Override
	public void toBytes(ByteBuf buf) {
		if(!this.messageValid)
			return;
		buf.writeBoolean(awake);
		buf.writeInt(entityid);
		
	}
	
	public static class Handler implements IMessageHandler<PacketReturnAwaken, IMessage>{

		@Override
		public IMessage onMessage(PacketReturnAwaken message, MessageContext ctx) {
		//	if(!message.messageValid && ctx.side != Side.CLIENT) {
		//		return null;
		//	}
			
			Minecraft.getMinecraft().addScheduledTask(() -> proccessMessage(message, ctx));
			
			return null;
		}

		void proccessMessage(PacketReturnAwaken message, MessageContext ctx) {
			try {
				EntityBeelzebook eb = (EntityBeelzebook) Minecraft.getMinecraft().world.getEntityByID(message.entityid);
				eb.getModel().awake = message.awake;
				Utils.getLogger().info("packet set: " + eb.getModel().awake);
			}catch(Exception e) {
				Utils.getLogger().catching(e);
			}
		}
	}
}

Model:

Spoiler


package com.ninja3659.explorationexpansion.client.model;

import java.awt.print.Book;

import com.ninja3659.explorationexpansion.client.entities.EntityBeelzebook;
import com.ninja3659.explorationexpansion.networking.NeemPacketHandler;
import com.ninja3659.explorationexpansion.networking.PacketReturnAwaken;
import com.ninja3659.explorationexpansion.util.Utils;

import net.minecraft.client.model.ModelBase;
import net.minecraft.client.model.ModelRenderer;
import net.minecraft.client.renderer.BlockModelShapes;
import net.minecraft.client.renderer.block.model.ModelBakery;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.client.resources.IResourceManager;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.network.NetHandlerPlayServer;
import net.minecraft.server.network.NetHandlerStatusServer;
import net.minecraft.util.math.MathHelper;
import net.minecraftforge.event.entity.living.LivingHurtEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.SidedProxy;
import net.minecraftforge.fml.common.event.FMLModIdMappingEvent.ModRemapping;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import scala.specialized;

public class ModelBeelzebook extends ModelBase{
	//EntityFlying

	public ModelRenderer book;
	public ModelRenderer BookTop;
	public ModelRenderer BookBottom;
	public ModelRenderer Eye1;
	public ModelRenderer Eye2;
	public ModelRenderer Eye3;
	public ModelRenderer Eye4;
	public ModelRenderer Spine;
	public ModelRenderer pagesT;
	public ModelRenderer pagesB;
	public ModelRenderer page1;
	public ModelRenderer page2;
	public ModelRenderer page3;
	public boolean awake = false;
	
	public static int sync = 0;
	
	public ModelBeelzebook() {
		textureWidth = 128;
		textureHeight = 128;
		
	
		book = new ModelRenderer(this, 0, 0);
		book.addBox(0, 0, 0, 0, 0, 0);
		book.setRotationPoint(0, 22, 0);
		
		BookTop = new ModelRenderer(this, 0, 0);
		BookTop.addBox(-10, -1.5f, -14, 20, 1, 14);
		BookTop.setRotationPoint(0, 0, 0);
		setRotation(BookTop, 0, 0, 0);
		book.addChild(BookTop);
		
		Eye1 = new ModelRenderer(this, 0, 32);
		Eye1.addBox(-1, -2, -2, 2, 2, 2);
		Eye1.setRotationPoint(-5, -1, -6);
		setRotation(Eye1, 81, 0, 0);
		BookTop.addChild(Eye1);
		
		Eye2 = new ModelRenderer(this, 0, 36);
		Eye2.addBox(-1, -2, -2, 2, 2, 2);
		Eye2.setRotationPoint(-2, -1, -8);
		setRotation(Eye2, 81, 0, 0);
		BookTop.addChild(Eye2);
		
		Eye3 = new ModelRenderer(this, 0, 40);
		Eye3.addBox(-1, -2, -2, 2, 2, 2);
		Eye3.setRotationPoint(4, 0, 0);
		Eye2.addChild(Eye3);
		
		Eye4 = new ModelRenderer(this, 0, 44);
		Eye4.addBox(-1, -2, -2, 2, 2, 2);
		Eye4.setRotationPoint(10, 0, 0);
		Eye1.addChild(Eye4);
		
		pagesT = new ModelRenderer(this, 0, 48);
		pagesT.addBox(-9, -.5f, -13, 18, 1, 13);
		pagesT.setRotationPoint(0, 0, 0);
		setRotation(pagesT, 0, 0, 0);
		BookTop.addChild(pagesT);
		
		BookBottom = new ModelRenderer(this, 0, 16);
		BookBottom.addBox(-10, .5f, -14, 20, 1, 14);
		BookBottom.setRotationPoint(0, 0, 0);
		book.addChild(BookBottom);
		
		pagesB = new ModelRenderer(this, 0, 48);
		pagesB.addBox(-9, -.5f, -13, 18, 1, 13);
		pagesB.setRotationPoint(0, 0, 0);
		BookBottom.addChild(pagesB);
		
		Spine = new ModelRenderer(this, 68, 13);
		Spine.addBox(-10, -1.5f, 0, 20, 3, 1);
		Spine.setRotationPoint(0, 0, 0);
		book.addChild(Spine);
		
		page1 = new ModelRenderer(this, 9, 32);
		page1.addBox(-1.5f, -19, 0, 3, 4, 0);
		page1.setRotationPoint(0, 0, 0);
		book.addChild(page1);
		
		page2 = new ModelRenderer(this, 9, 32);
		page2.addBox(-1.5f, -24, 0, 3, 4, 0);
		page2.setRotationPoint(0, 0, 0);
		book.addChild(page2);
		
		page3 = new ModelRenderer(this, 9, 32);
		page3.addBox(-1.5f, -29, 0, 3, 4, 0);
		page3.setRotationPoint(0, 0, 0);
		book.addChild(page3);
		
	}
	
	public void setAwake(boolean entityAwake) {
		awake = entityAwake;
		Utils.getLogger().info("Awake is now: " + awake);
	}//used to set the awake animation to true
	
	public boolean getAwake() {
		Utils.getLogger().info("FETCHED AWAKE IS: " + awake);
		return awake;
	
	}
	
	public float deg2Rad(float d) {
		return d * ((float)Math.PI / 180);
	}
	
	public void setRotation(ModelRenderer model, float x, float y, float z) {
		model.rotateAngleX = deg2Rad(x);
		model.rotateAngleY = deg2Rad(y);
		model.rotateAngleZ  = deg2Rad(z);
	}
	

	@Override
	public void render(Entity entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch, float scale) {
		renderBook((EntityBeelzebook) entity, limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scale);
		
	}
	
	public void renderBook(EntityBeelzebook entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch, float scale) {
		book.render(scale);
		setRotationAngles(limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scale, entity);
	}
	
	@Override
	public void setRotationAngles(float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw,
			float headPitch, float scaleFactor, Entity entityIn) {
		super.setRotationAngles(limbSwing, limbSwingAmount, ageInTicks, netHeadYaw, headPitch, scaleFactor, entityIn);
		BookTop.rotateAngleX = 0;
		BookBottom.rotateAngleX = MathHelper.cos(limbSwing * .666f) * .4F * limbSwingAmount + deg2Rad(20);
		
		
		
//		if(entityIn.ticksExisted%60 == 0) {
//			book.rotateAngleX = headPitch * .666f;
//			book.rotateAngleY = netHeadYaw * .666f;
//		}
		
		AwakeAnimation((EntityBeelzebook) entityIn);
		deathAnim((EntityBeelzebook)entityIn, limbSwing, limbSwingAmount, ageInTicks);
	}
	
	public void deathAnim(EntityBeelzebook entity, float limbSwing, float limbSwingAmount, float ageInTicks) {
		if (entity.getdeathTime() != 0) {
			BookTop.rotateAngleX = deg2Rad(-(5 * MathHelper.cos(entity.ticksExisted * 2)) - 85);
			BookBottom.rotateAngleX = deg2Rad((5 * MathHelper.cos(entity.ticksExisted * 2)) +85);
		}		
	}	
	
	@Override
	public void setLivingAnimations(EntityLivingBase entitylivingbaseIn, float limbSwing, float limbSwingAmount,
			float partialTickTime) {
		
	}
	
	public void AwakeAnimation(EntityBeelzebook entity) {
		Utils.getLogger().info("awake? " + awake);
		if(awake) {
			this.setRotation(Eye1, 33, 0, 0);
			this.setRotation(Eye2, 33, 0, 0);
			Utils.getLogger().info("animation!");
		}
	}//opens the book's eyes

}

Here is the method in the entity class:

Spoiler


@Override
	public void onLivingUpdate() {
		super.onLivingUpdate();
		if(entityAwake && !bookmodel.awake) {
			//Utils.getLogger().info("Living Update works");
		}
		if(entityAwake) {
			applyAttackAI();
		}
		sync++;
		sync %= 10;
		if(sync == 0 && entityAwake) {
			NeemPacketHandler.INSTANCE.sendToAll(new PacketReturnAwaken(this.entityAwake, this.getEntityId()));
			Utils.getLogger().info("synched!: " + entityAwake);
		}
	}

Everything Looks to be in good shape, i don't know what could be the problem

on the flip side, I feel like I'm getting a better understanding of packets

Edited July 18, 20178 yr by GooberGunter

Quote

July 18, 20178 yr

Where do you register the entity's model/renderer?

Quote

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.

Reply to this topic...

https://forums.minecraftforge.net/topic/59547-1112-solved-how-do-i-do-packets/

Followers

Go to topic listing

IPS spam blocked by CleanTalk.

Announcements

[1.16.1]Render enchanted glint to item

ik this was 5 years ago but is this the same in 1.20? or is there a different method?

By FireDude123 · 14 hours ago14 hr
🎯 Elivius Needs You! Staff Wanted In All Positions! [Looking for Staff]

🌍 Elivius — Building a Legendary Minecraft Experience

Elivius is more than just a Minecraft server — it’s a vision. For years, our world has been in development, on and off, shaped by a small but passionate team. Now, we’re pushing forward with full force to create something unforgettable: a Towny-based survival experience enriched with custom quests, seasonal events, minigames, immersive builds, and unique features you won’t find anywhere else.

✨ Our Vision & Goals
Create a community-first server that feels alive, fair, and fun.
Build immersive seasonal events that keep players engaged year-round.
Develop custom content that brings personality and depth to Towny survival.
Grow Elivius into a credible, long-term project with transparency, quality, and heart.

We’ve already built the foundation, tested systems, and proven our resilience. Now, we’re looking for talented volunteers to join us and help Elivius become everything we know it can be.

⚒️ Recruiting Passionate Volunteers

Elivius is a volunteer project. While we don’t offer pay, we do provide:
🎁 Staff-exclusive giveaways (Nitro, rewards, in-game perks).
🏆 A chance to shape one of the most ambitious Towny servers.
💡 An opportunity to learn, grow, and leave your mark on something players will remember.
❤️ A welcoming, close-knit team that feels more like family.

We’re currently looking for:

🟦 Helper (Moderation Team)
Front-line moderators who answer questions, enforce rules, and keep the server safe and welcoming.

🟩 Builder
Creative builders who design spawns, event maps, and breathtaking seasonal builds.

🟨 Content Team
Configuration editors who bring features to life using plugins, resource packs, quests, menus, and systems.

🟦 Developer
Backend coders who create and maintain custom plugins, optimize performance, and bring new mechanics to life.

🟪 Media Team
Artists, editors, and designers who create graphics, trailers, animations, and promo content.

🟧 Content Creator
Streamers and YouTubers who help grow our player base. Creators get promotions and commissions on purchases through their codes.

🚀 Be Part of the Future of Elivius

We’re still small, but our ambitions are huge. With your help, we can turn Elivius into a legendary community where players feel at home and excited to return.

📌 All requirements are currently waived to help motivated applicants get started.
💬 Join our Discord and apply in the #staff-applications channel today!
👉 https://discord.gg/4HBU5tBDqc

Elivius wants YOU. Let’s build something unforgettable, together.

By AidenJules_ · Posted Yesterday at 03:58 AM1 day
[1.21.3] How to add effects to food?

game changed the way you create foods.
for example minecraft 1.21.8 code for the golden apple is

Foods.java
public static final FoodProperties GOLDEN_APPLE = new FoodProperties.Builder().nutrition(4).saturationModifier(1.2F).alwaysEdible().build();

Items.java
public static final Item GOLDEN_APPLE = registerItem("golden_apple", new Item.Properties().food(Foods.GOLDEN_APPLE, Consumables.GOLDEN_APPLE));

Consumables.java
public static final Consumable GOLDEN_APPLE = defaultFood() .onConsume( new ApplyStatusEffectsConsumeEffect( List.of(new MobEffectInstance(MobEffects.REGENERATION, 100, 1), new MobEffectInstance(MobEffects.ABSORPTION, 2400, 0)) ) )

By LordCambion · Saturday at 01:38 PM1 day
Is this forum active?

hello everyone..!

By WinX · Saturday at 06:47 AM2 days
How to add my mob to another mod's biome in 1.20.1.

tysm

By ilov3gam3z · Friday at 06:05 PM2 days

There are no registered users currently online

Sign In

[1.11.2] [SOLVED!] How do I do Packets

Featured Replies

Join the conversation

Posts

[1.16.1]Render enchanted glint to item

🎯 Elivius Needs You! Staff Wanted In All Positions! [Looking for Staff]

[1.21.3] How to add effects to food?

Is this forum active?

How to add my mob to another mod's biome in 1.20.1.

Who's Online (See full list)

Important Information

Account

Navigation

Search

Configure browser push notifications

Chrome (Android)

Chrome (Desktop)

Safari (iOS 16.4+)

Safari (macOS)

Edge (Android)

Edge (Desktop)

Firefox (Android)

Firefox (Desktop)