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[1.15.2] Ticking Entity Error

Demruxy

By Demruxy
in Modder Support

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Demruxy Tree Puncher

Demruxy

Posted
Posted (edited)

This is my code: 

package com.demrux.cursedminecraft.entities;
import com.demrux.cursedminecraft.util.RegistryHandler;
import com.mojang.blaze3d.platform.GlStateManager;

import net.minecraft.entity.AgeableEntity;
import net.minecraft.entity.CreatureEntity;
import net.minecraft.entity.ai.goal.BreedGoal;
import net.minecraft.entity.ai.goal.FollowMobGoal;
import net.minecraft.entity.ai.goal.FollowParentGoal;
import net.minecraft.entity.ai.goal.LookAtGoal;
import net.minecraft.entity.ai.goal.LookRandomlyGoal;
import net.minecraft.entity.ai.goal.MeleeAttackGoal;
import net.minecraft.entity.ai.brain.task.WalkToTargetTask;
import net.minecraft.entity.ai.goal.NearestAttackableTargetGoal;
import net.minecraft.entity.ai.goal.WaterAvoidingRandomWalkingGoal;
import net.minecraft.entity.effect.LightningBoltEntity;
import net.minecraft.entity.passive.AnimalEntity;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.nbt.CompoundNBT;
import net.minecraft.util.math.BlockPos;
import net.minecraft.entity.EntityType;
import net.minecraft.entity.ILivingEntityData;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.SpawnReason;
import net.minecraft.world.World;


public class TremEntity extends AnimalEntity{
	
	public TremEntity(EntityType<? extends AnimalEntity> type, World worldIn) {
		super(type, worldIn);
	}
	@Override
	public AgeableEntity createChild(AgeableEntity ageable) {
		TremEntity entity = new TremEntity(RegistryHandler.TREM_ENTITY.get(), this.world);
		entity.onInitialSpawn(this.world, this.world.getDifficultyForLocation(new BlockPos(entity)),
				SpawnReason.BREEDING, (ILivingEntityData) null, (CompoundNBT) null);
		entity.setGlowing(true);
		return entity;
	}
	
	protected void registerGoals() {
		super.registerGoals();
		this.goalSelector.addGoal(2, new BreedGoal(this, 1.0D));
		this.goalSelector.addGoal(4, new WaterAvoidingRandomWalkingGoal(this, 1.0D));
		this.goalSelector.addGoal(5, new LookAtGoal(this, PlayerEntity.class, 6.0F));
		this.goalSelector.addGoal(6, new LookRandomlyGoal(this)); 
    	this.goalSelector.addGoal(0, new NearestAttackableTargetGoal(this, PlayerEntity.class, true));
    	this.goalSelector.addGoal(1, new MeleeAttackGoal(this, 1.0D, false));
	}
	
    
	@Override
	protected void updateAITasks() {
		super.updateAITasks();
	}
	
	@Override
	public void livingTick() {
		super.livingTick();
	}
	
	@Override
	public void registerAttributes() {
		super.registerAttributes();
		this.getAttribute(SharedMonsterAttributes.MAX_HEALTH).setBaseValue(16.0D);
		this.getAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).setBaseValue(0.40D);
	}
	
	@Override
	public void onStruckByLightning(LightningBoltEntity lightningBolt) {
		this.setGlowing(true);	
	}
}

This is my crash log: 

Time: 7/8/20, 2:54 PM
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
	at net.minecraft.entity.MobEntity.attackEntityAsMob(MobEntity.java:1279) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.entity.ai.goal.MeleeAttackGoal.checkAndPerformAttack(MeleeAttackGoal.java:154) ~[?:?] {re:classloading}
	at net.minecraft.entity.ai.goal.MeleeAttackGoal.tick(MeleeAttackGoal.java:146) ~[?:?] {re:classloading}
	at net.minecraft.entity.ai.goal.PrioritizedGoal.tick(PrioritizedGoal.java:63) ~[?:?] {re:classloading}
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) ~[?:?] {}
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) ~[?:?] {}
	at java.util.Iterator.forEachRemaining(Iterator.java:133) ~[?:?] {}
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[?:?] {}
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?] {}
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?] {}
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[?:?] {}
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[?:?] {}
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] {}
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) ~[?:?] {}
	at net.minecraft.entity.ai.goal.GoalSelector.tick(GoalSelector.java:89) ~[?:?] {re:classloading}
	at net.minecraft.entity.MobEntity.updateEntityActionState(MobEntity.java:652) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.entity.LivingEntity.livingTick(LivingEntity.java:2426) ~[?:?] {re:classloading}
	at net.minecraft.entity.MobEntity.livingTick(MobEntity.java:512) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.entity.AgeableEntity.livingTick(AgeableEntity.java:169) ~[?:?] {re:classloading}
	at net.minecraft.entity.passive.AnimalEntity.livingTick(AnimalEntity.java:46) ~[?:?] {re:classloading}
	at com.demrux.cursedminecraft.entities.TremEntity.livingTick(TremEntity.java:64) ~[?:?] {re:classloading}
	at net.minecraft.entity.LivingEntity.tick(LivingEntity.java:2264) ~[?:?] {re:classloading}
	at net.minecraft.entity.MobEntity.tick(MobEntity.java:311) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.world.server.ServerWorld.updateEntity(ServerWorld.java:615) ~[?:?] {re:classloading}
	at net.minecraft.world.World.guardEntityTick(World.java:586) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.world.server.ServerWorld.tick(ServerWorld.java:404) ~[?:?] {re:classloading}
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:886) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:821) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at java.lang.Thread.run(Thread.java:834) ~[?:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at net.minecraft.entity.MobEntity.attackEntityAsMob(MobEntity.java:1279)
	at net.minecraft.entity.ai.goal.MeleeAttackGoal.checkAndPerformAttack(MeleeAttackGoal.java:154)
	at net.minecraft.entity.ai.goal.MeleeAttackGoal.tick(MeleeAttackGoal.java:146)
	at net.minecraft.entity.ai.goal.PrioritizedGoal.tick(PrioritizedGoal.java:63)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
	at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at net.minecraft.entity.ai.goal.GoalSelector.tick(GoalSelector.java:89)
	at net.minecraft.entity.MobEntity.updateEntityActionState(MobEntity.java:652)
	at net.minecraft.entity.LivingEntity.livingTick(LivingEntity.java:2426)
	at net.minecraft.entity.MobEntity.livingTick(MobEntity.java:512)
	at net.minecraft.entity.AgeableEntity.livingTick(AgeableEntity.java:169)
	at net.minecraft.entity.passive.AnimalEntity.livingTick(AnimalEntity.java:46)
	at com.demrux.cursedminecraft.entities.TremEntity.livingTick(TremEntity.java:64)
	at net.minecraft.entity.LivingEntity.tick(LivingEntity.java:2264)
	at net.minecraft.entity.MobEntity.tick(MobEntity.java:311)
	at net.minecraft.world.server.ServerWorld.updateEntity(ServerWorld.java:615)

-- Entity being ticked --
Details:
	Entity Type: cm:trem_entity (com.demrux.cursedminecraft.entities.TremEntity)
	Entity ID: 18
	Entity Name: TREM
	Entity's Exact location: 261.59, 68.00, 155.10
	Entity's Block location: World: (261,68,155), Chunk: (at 5,4,11 in 16,9; contains blocks 256,0,144 to 271,255,159), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: -0.07, -0.08, -0.17
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at net.minecraft.world.World.guardEntityTick(World.java:586)
	at net.minecraft.world.server.ServerWorld.tick(ServerWorld.java:404)

-- Affected level --
Details:
	All players: 1 total; [ServerPlayerEntity['Dev'/236, l='Mert'in Dünyas?', x=261.73, y=68.00, z=154.34]]
	Chunk stats: ServerChunkCache: 2301
	Level dimension: DimensionType{minecraft:overworld}
	Level name: Mert'in Dünyas?
	Level seed: 6708017606537800173
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (240,69,170), Chunk: (at 0,4,10 in 15,10; contains blocks 240,0,160 to 255,255,175), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 96838 game time, 1000 day time
	Known server brands: forge
	Level was modded: true
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:886)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:821)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662)
	at java.base/java.lang.Thread.run(Thread.java:834)

-- System Details --
Details:
	Minecraft Version: 1.15.2
	Minecraft Version ID: 1.15.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 11.0.7, AdoptOpenJDK
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), AdoptOpenJDK
	Memory: 268566528 bytes (256 MB) / 1196425216 bytes (1141 MB) up to 4276092928 bytes (4078 MB)
	CPUs: 12
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 5.1.0+69+master.79f13f7
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/accesstransformers-2.1.1-shadowed.jar accesstransformer PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 31.2
	Forge: net.minecraftforge:31.2.0
	FML Language Providers: 
		[email protected]
		minecraft@1
	Mod List: 
		client-extra.jar Minecraft {[email protected] DONE}
		forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {[email protected] DONE}
		main Cursed Minecraft {[email protected] DONE}
	Player Count: 1 / 8; [ServerPlayerEntity['Dev'/236, l='Mert'in Dünyas?', x=261.73, y=68.00, z=154.34]]
	Data Packs: vanilla, mod:forge (incompatible), mod:cm
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'forge'

 

My game crashes while the Custom Mob hits the Player Entity. I currently don't know what causes this error.

 

Edited by Demruxy
Demruxy Tree Puncher

Demruxy

Posted
  • Author
Posted
28 minutes ago, diesieben07 said:

Use the debugger to figure out what is null on that line.

Thanks, currently on it.

----------------------------------------------------------------------

19 minutes ago, vemerion said:

I think you have to also set the ATTACK_DAMAGE attribute in your registerAttributes() method.

When I set; 

this.getAttribute(SharedMonsterAttributes.ATTACK_DAMAGE).setBaseValue(0.50D);

I cannot spawn the entity.

Demruxy Tree Puncher

Demruxy

Posted
  • Author
Posted
6 hours ago, vemerion said:

It seems like you first have to register the attribute, like so: 


this.getAttributes().registerAttribute(SharedMonsterAttributes.ATTACK_DAMAGE);

 

Thank you very much, forgot to register. :)

  • Like 1

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