[Solved] My New Mob Does Not Work

nickpops98 · December 18, 2013

I tried adding a new mob 'Goblin' to the game but now it crashes.

Here is everything to do with the Goblin Entity and the Crash Report.

QuestCraft.java - Main Class

package nickpops98.questcraft;

import net.minecraft.entity.Entity;

import net.minecraft.entity.EntityEggInfo;

import net.minecraft.entity.EntityList;

import net.minecraft.entity.EnumCreatureType;

import nickpops98.questcraft.entity.monster.EntityGoblin;

import nickpops98.questcraft.entity.monster.ModelGoblin;

import nickpops98.questcraft.entity.monster.RenderGoblin;

@Mod( modid = Reference.MOD_ID, name = Reference.MOD_NAME, version = Reference.VERSION)

public class QuestCraft {

// Mob Generation Functions

static int startEntityID = 300;

public static int getUniqueEntityID() {

do {

startEntityID++;

}

while (EntityList.getStringFromID(startEntityID) != null);

return startEntityID++;

}

@SuppressWarnings("unchecked")

public static void registerEntityEgg(Class<? extends Entity> entity, int primaryColour, int secondaryColour){

int id = getUniqueEntityID();

EntityList.IDtoClassMapping.put(id, entity);

EntityList.entityEggs.put(id, new EntityEggInfo(id, primaryColour, secondaryColour));

}

@EventHandler

public void preInit(FMLInitializationEvent event) {

// Entity Settings

EntityRegistry.registerGlobalEntityID(EntityGoblin.class, "Goblin", 1);

EntityRegistry.addSpawn(EntityGoblin.class, 10, 4, 8, EnumCreatureType.monster);

EntityRegistry.findGlobalUniqueEntityId();

registerEntityEgg(EntityGoblin.class, 0x007200, 0x8A5800);

RenderingRegistry.registerEntityRenderingHandler(EntityGoblin.class, new RenderGoblin(new ModelGoblin(), 0.3F));

}

Note: This is not the whole class only the things relating to the entity.

ModelGoblin.java - The Class Exported from Techne for the Model of the Goblin With Some Edits by Me

package nickpops98.questcraft.entity.monster;

import net.minecraft.client.model.ModelBase;

import net.minecraft.client.model.ModelRenderer;

import net.minecraft.entity.Entity;

import net.minecraft.util.MathHelper;

public class ModelGoblin extends ModelBase

{

ModelRenderer head;

ModelRenderer body;

ModelRenderer armRight;

ModelRenderer armLeft;

ModelRenderer legRight;

ModelRenderer legLeft;

ModelRenderer earRight;

ModelRenderer earLeft;

public ModelGoblin()

{

textureWidth = 32;

textureHeight = 32;

head = new ModelRenderer(this, 0, 0);

head.addBox(-4F, -6F, -3F, 8, 6, 6);

head.setRotationPoint(0F, 0F, 0F);

head.setTextureSize(64, 32);

head.mirror = true;

setRotation(head, 0F, 0F, 0F);

body = new ModelRenderer(this, 0, 12);

body.addBox(-3F, 0F, -1F, 6, 6, 2);

body.setRotationPoint(0F, 0F, 0F);

body.setTextureSize(64, 32);

body.mirror = true;

setRotation(body, 0F, 0F, 0F);

armRight = new ModelRenderer(this, 16, 13);

armRight.addBox(0F, 0F, -1F, 2, 5, 2);

armRight.setRotationPoint(3F, 1F, 0F);

armRight.setTextureSize(64, 32);

armRight.mirror = true;

setRotation(armRight, 0F, 0F, 0F);

armLeft.mirror = true;

armLeft = new ModelRenderer(this, 16, 13);

armLeft.addBox(-2F, 0F, -1F, 2, 5, 2);

armLeft.setRotationPoint(-3F, 1F, 0F);

armLeft.setTextureSize(64, 32);

armLeft.mirror = true;

setRotation(armLeft, 0F, 0F, 0F);

armLeft.mirror = false;

legRight = new ModelRenderer(this, 0, 20);

legRight.addBox(-1F, 0F, -1F, 2, 4, 2);

legRight.setRotationPoint(2F, 6F, 0F);

legRight.setTextureSize(64, 32);

legRight.mirror = true;

setRotation(legRight, 0F, 0F, 0F);

legLeft.mirror = true;

legLeft = new ModelRenderer(this, 0, 20);

legLeft.addBox(-1F, 0F, -1F, 2, 4, 2);

legLeft.setRotationPoint(-2F, 6F, 0F);

legLeft.setTextureSize(64, 32);

legLeft.mirror = true;

setRotation(legLeft, 0F, 0F, 0F);

legLeft.mirror = false;

earRight.mirror = true;

earRight = new ModelRenderer(this, 8, 20);

earRight.addBox(4F, -4F, -1F, 1, 2, 1);

earRight.setRotationPoint(0F, 0F, 0F);

earRight.setTextureSize(64, 32);

earRight.mirror = true;

setRotation(earRight, 0F, 0F, 0F);

earRight.mirror = false;

earLeft = new ModelRenderer(this, 8, 20);

earLeft.addBox(-5F, -4F, -1F, 1, 2, 1);

earLeft.setRotationPoint(0F, 0F, 0F);

earLeft.setTextureSize(64, 32);

earLeft.mirror = true;

setRotation(earLeft, 0F, 0F, 0F);

}

public void render(Entity entity, float f, float f1, float f2, float f3, float f4, float f5)

{

super.render(entity, f, f1, f2, f3, f4, f5);

setRotationAngles(f, f1, f2, f3, f4, f5, entity);

head.render(f5);

body.render(f5);

armRight.render(f5);

armLeft.render(f5);

legRight.render(f5);

legLeft.render(f5);

earRight.render(f5);

earLeft.render(f5);

}

private void setRotation(ModelRenderer model, float x, float y, float z)

{

model.rotateAngleX = x;

model.rotateAngleY = y;

model.rotateAngleZ = z;

}

public void setRotationAngles(float f, float f1, float f2, float f3, float f4, float f5, Entity entity)

{

this.head.rotateAngleY = f3 / (180F /(float)Math.PI);

this.head.rotateAngleX = f4 / (170F /(float)Math.PI);

this.earLeft.rotateAngleY = f3 / (180F /(float)Math.PI);

this.earLeft.rotateAngleX = f4 / (170F /(float)Math.PI);

this.earRight.rotateAngleY = f3 / (180F /(float)Math.PI);

this.earRight.rotateAngleX = f4 / (170F /(float)Math.PI);

this.legLeft.rotateAngleX = MathHelper.cos(f * 0.6662F) * 2.0F * f1 * 0.5F;

this.legLeft.rotateAngleY = 0.0F;

this.legRight.rotateAngleX = MathHelper.cos(f * 0.6662F + (float)Math.PI) * 1.4F * f1;

this.legRight.rotateAngleY = 0.0F;

this.armLeft.rotateAngleX = MathHelper.cos(f * 0.6662F) * 2.0F * f1 * 0.5F;

this.armLeft.rotateAngleZ = 0.0F;

this.armRight.rotateAngleX = MathHelper.cos(f * 0.6663F + (float)Math.PI) * 2.0F * f1 * 0.5F;

this.armRight.rotateAngleY = 0.0F;

}

EntityGoblin.java - The AI for the Goblin

package nickpops98.questcraft.entity.monster;

import net.minecraft.entity.EnumCreatureAttribute;

import net.minecraft.entity.ai.EntityAIAttackOnCollide;

import net.minecraft.entity.ai.EntityAIHurtByTarget;

import net.minecraft.entity.ai.EntityAILookIdle;

import net.minecraft.entity.ai.EntityAINearestAttackableTarget;

import net.minecraft.entity.ai.EntityAISwimming;

import net.minecraft.entity.ai.EntityAIWander;

import net.minecraft.entity.ai.EntityAIWatchClosest;

import net.minecraft.entity.monster.EntityMob;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.item.Item;

import net.minecraft.world.World;

public class EntityGoblin extends EntityMob {

public EntityGoblin(World par1World) {

super(par1World);

this.experienceValue = 5;

this.tasks.addTask(0, new EntityAISwimming(this));

this.tasks.addTask(2, new EntityAIAttackOnCollide(this, EntityPlayer.class, 0.6D, false));

this.tasks.addTask(6, new EntityAIWander(this, 0.6D));

this.tasks.addTask(7, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));

this.tasks.addTask(7, new EntityAILookIdle(this));

this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, true));

this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityPlayer.class, 0, true));

}

protected boolean isAIEnabled() {

return true;

}

public int getMaxHealth() {

return 10;

}

protected String getLivingSound() {

return "mob.zombie.say";

}

protected String getHurtSound() {

return "mob.zombie.hurt";

}

protected String getDeathSound() {

return "mob.zombie.death";

}

protected void playStepSound(int par1, int par2, int par3, int par4) {

this.playSound(null, 0.15F, 1.0F);

}

protected int getDropItemID() {

return Item.leather.itemID;

}

protected void dropFewItems(boolean par1, int par2) {

int j = this.rand.nextInt(2 + par2);

int k;

for (k = 0; k < j; ++k)

{

this.dropItem(Item.leather.itemID, 1);

}

j = this.rand.nextInt(1 + par2);

for (k = 0; k < j; ++k)

{

this.dropItem(Item.ingotGold.itemID, 1);

}

public EnumCreatureAttribute getCreatureAttribute() {

return EnumCreatureAttribute.UNDEFINED;

}

public void onLivingUpdate() {

super.onLivingUpdate();

}

RenderGoblin.java - The Rendering Class for the Goblin

package nickpops98.questcraft.entity.monster;

import net.minecraft.client.model.ModelBase;

import net.minecraft.client.renderer.entity.RenderLiving;

import net.minecraft.entity.Entity;

import net.minecraft.entity.EntityLiving;

import net.minecraft.util.ResourceLocation;

public class RenderGoblin extends RenderLiving {

protected ModelGoblin model;

public RenderGoblin(ModelBase par1ModelBase, float par2) {

super(par1ModelBase, par2);

model = ((ModelGoblin)mainModel);

}

public void renderGoblin(EntityGoblin entity, double par2, double par4, double par6, float par8, float par9) {

super.doRenderLiving(entity, par2, par4, par6, par8, par9);

}

public void doRenderLiving(EntityLiving par1EntityLiving, double par2, double par4, double par6, float par8, float par9) {

renderGoblin((EntityGoblin)par1EntityLiving, par2, par4, par6, par8, par9);

}

@Override

public void doRender(Entity entity, double d0, double d1, double d2, float f, float f1) {

renderGoblin((EntityGoblin)entity, d0, d1, d2, f, f1);

}

@Override

protected ResourceLocation func_110775_a(Entity entity) {

return new ResourceLocation("questcraft:textures/mobs/goblin.png");

}

Crash Report

---- Minecraft Crash Report ----

// Quite honestly, I wouldn't worry myself about that.

Time: 17/12/13 5:56 PM

Description: Initializing game

java.lang.NullPointerException

at nickpops98.questcraft.entity.monster.ModelGoblin.<init>(ModelGoblin.java:41)

at nickpops98.questcraft.QuestCraft.preInit(QuestCraft.java:432)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:697)

at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:231)

at net.minecraft.client.Minecraft.startGame(Minecraft.java:506)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)

at net.minecraft.client.main.Main.main(Main.java:93)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)

at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

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

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

-- Head --

Stacktrace: