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Adding random armor on mob spawn (1.7.2)

Posted March 23, 201411 yr

I've been trying this for a while now. I've looked at skeleton and zombie code, but it calls the addArmor method on spawn with an egg though.

Do I need to call the method myself outside of the entity code?

Kain

Quote

March 23, 201411 yr

If you want to apply armor to a vanilla mob during spawn, use the LivingSpawnEvent.

Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! |

mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

Quote

March 23, 201411 yr

Author

I actually want to add the random armor on my own mob.

Kain

Quote

March 23, 201411 yr

Author

I'm overriding that method and adding the armor, but it seems to only be called when I spawn with a spawn egg. If I spawn it naturally, nothing happens.

@Override
public IEntityLivingData onSpawnWithEgg(IEntityLivingData par1EntityLivingData) {
	super.onSpawnWithEgg(par1EntityLivingData);
	this.tasks.addTask(4, this.aiArrowAttack);
	this.addRandomArmor();
	this.enchantEquipment();
	return par1EntityLivingData;
}

@Override
protected void addRandomArmor() {
	super.addRandomArmor();
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(4, new ItemStack(Items.leather_helmet));
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(3, new ItemStack(Items.leather_chestplate));
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(2, new ItemStack(Items.leather_leggings));
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(1, new ItemStack(Items.leather_boots));
	this.setCurrentItemOrArmor(0, new ItemStack(Items.bow));
}

Kain

Quote

March 23, 201411 yr

You could call your addRandomArmor() method within the entityInit() method.

Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! |

mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

Quote

March 23, 201411 yr

Author

Already tried that, error.

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)[12:43:46] [server thread/WARN]: Skipping Entity with id 24

at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:233)
at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:173)
at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:79)
at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:150)
at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:424)
at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:596)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122)
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:242)
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:190)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:763)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:651)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:530)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:788)
Caused by: java.lang.NullPointerException
at net.minecraft.entity.EntityLiving.setCurrentItemOrArmor(EntityLiving.java:832)
at realmoffera.entity.EntityGoblinArcherRF.addRandomArmor(EntityGoblinArcherRF.java:72)
at realmoffera.entity.EntityGoblinArcherRF.entityInit(EntityGoblinArcherRF.java:51)
at net.minecraft.entity.Entity.<init>(Entity.java:286)
at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:203)
at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:98)
at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:44)
at net.minecraft.entity.monster.EntityMob.<init>(EntityMob.java:21)
at realmoffera.entity.EntityGoblinArcherRF.<init>(EntityGoblinArcherRF.java:35)
... 19 more
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:233)
at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:173)
at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:79)
at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:150)
at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:424)
at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:596)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122)
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:242)
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:190)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:763)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:651)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:530)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:788)
Caused by: java.lang.NullPointerException
at net.minecraft.entity.EntityLiving.setCurrentItemOrArmor(EntityLiving.java:832)
at realmoffera.entity.EntityGoblinArcherRF.addRandomArmor(EntityGoblinArcherRF.java:75)
at realmoffera.entity.EntityGoblinArcherRF.entityInit(EntityGoblinArcherRF.java:51)
at net.minecraft.entity.Entity.<init>(Entity.java:286)
at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:203)
at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:98)
at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:44)
at net.minecraft.entity.monster.EntityMob.<init>(EntityMob.java:21)
at realmoffera.entity.EntityGoblinArcherRF.<init>(EntityGoblinArcherRF.java:35)
... 19 more

Kain

Quote

March 23, 201411 yr

Already tried that, error.

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)[12:43:46] [server thread/WARN]: Skipping Entity with id 24

at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:233)
at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:173)
at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:79)
at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:150)
at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:424)
at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:596)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122)
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:242)
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:190)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:763)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:651)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:530)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:788)
Caused by: java.lang.NullPointerException
at net.minecraft.entity.EntityLiving.setCurrentItemOrArmor(EntityLiving.java:832)
at realmoffera.entity.EntityGoblinArcherRF.addRandomArmor(EntityGoblinArcherRF.java:72)
at realmoffera.entity.EntityGoblinArcherRF.entityInit(EntityGoblinArcherRF.java:51)
at net.minecraft.entity.Entity.<init>(Entity.java:286)
at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:203)
at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:98)
at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:44)
at net.minecraft.entity.monster.EntityMob.<init>(EntityMob.java:21)
at realmoffera.entity.EntityGoblinArcherRF.<init>(EntityGoblinArcherRF.java:35)
... 19 more
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:233)
at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:173)
at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:79)
at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:150)
at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:424)
at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:596)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122)
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:242)
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:190)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:763)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:651)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:530)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:788)
Caused by: java.lang.NullPointerException
at net.minecraft.entity.EntityLiving.setCurrentItemOrArmor(EntityLiving.java:832)
at realmoffera.entity.EntityGoblinArcherRF.addRandomArmor(EntityGoblinArcherRF.java:75)
at realmoffera.entity.EntityGoblinArcherRF.entityInit(EntityGoblinArcherRF.java:51)
at net.minecraft.entity.Entity.<init>(Entity.java:286)
at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:203)
at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:98)
at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:44)
at net.minecraft.entity.monster.EntityMob.<init>(EntityMob.java:21)
at realmoffera.entity.EntityGoblinArcherRF.<init>(EntityGoblinArcherRF.java:35)
... 19 more

can I see your code (after manipulating the entityInit method)

Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! |

mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

Quote

March 23, 201411 yr

Author

package realmoffera.entity;

import net.minecraft.enchantment.Enchantment;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.EnumCreatureAttribute;
import net.minecraft.entity.IEntityLivingData;
import net.minecraft.entity.IRangedAttackMob;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIArrowAttack;
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.entity.projectile.EntityArrow;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.DamageSource;
import net.minecraft.world.World;
import realmoffera.UtilRF;
import realmoffera.world.WorldSavedDataRF;

public class EntityGoblinArcherRF extends EntityMob implements IRangedAttackMob {
private EntityAIArrowAttack aiArrowAttack = new EntityAIArrowAttack(this, 1.0D, 20, 60, 15.0F);
private EntityAIAttackOnCollide aiAttackOnCollide = new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.2D, false);

public EntityGoblinArcherRF(World world) {
	super(world);
	this.tasks.addTask(1, new EntityAISwimming(this));
	this.tasks.addTask(5, new EntityAIWander(this, 1.0D));
	this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
	this.tasks.addTask(6, new EntityAILookIdle(this));
	this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, false));
	this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityPlayer.class, 0, true));
	if(world != null && !world.isRemote) {
		this.setCombatTask();
	}
	this.setSize(0.6F, 1.8F);
}

@Override
protected void entityInit() {
	super.entityInit();
	this.addRandomArmor();
	this.enchantEquipment();
}

@Override
public IEntityLivingData onSpawnWithEgg(IEntityLivingData par1EntityLivingData) {
	super.onSpawnWithEgg(par1EntityLivingData);
	this.tasks.addTask(4, this.aiArrowAttack);
	//this.addRandomArmor();
	//this.enchantEquipment();
	return par1EntityLivingData;
}

@Override
protected void addRandomArmor() {
	super.addRandomArmor();
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(4, new ItemStack(Items.leather_helmet));
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(3, new ItemStack(Items.leather_chestplate));
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(2, new ItemStack(Items.leather_leggings));
	if(UtilRF.getChance(1, 3))
		this.setCurrentItemOrArmor(1, new ItemStack(Items.leather_boots));
	this.setCurrentItemOrArmor(0, new ItemStack(Items.bow));
}

@Override
protected void applyEntityAttributes() {
	super.applyEntityAttributes();
	this.getEntityAttribute(SharedMonsterAttributes.followRange).setBaseValue(80.0D);
	this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.24000000417232513D);
	this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(0D);
	this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(10.0D);
}

@Override
protected boolean isAIEnabled() {
	return true;
}

public void setCombatTask() {
	this.tasks.removeTask(this.aiAttackOnCollide);
	this.tasks.removeTask(this.aiArrowAttack);
	this.tasks.addTask(4, this.aiArrowAttack);
}

@Override
protected int getExperiencePoints(EntityPlayer player) {
	return super.getExperiencePoints(player);
}

@Override
public void onLivingUpdate() {
	if(!worldObj.isRemote && !WorldSavedDataRF.forWorld(worldObj).isPostDragon()) {
		this.damageEntity(DamageSource.magic, 1000);
	} else if(!worldObj.isRemote && WorldSavedDataRF.forWorld(worldObj).isPostDragon()) {
	}
	super.onLivingUpdate();
}

@Override
public boolean attackEntityFrom(DamageSource dmgSrc, float par2) {
	if(this.isBurning() && UtilRF.getChance(1, 5) && dmgSrc.getEntity() instanceof EntityLiving) {
		dmgSrc.getEntity().setFire(UtilRF.getRandomIntegerBetween(5, 10));
	}
	return super.attackEntityFrom(dmgSrc, par2);
}

@Override
public EnumCreatureAttribute getCreatureAttribute() {
	return EnumCreatureAttribute.UNDEAD;
}

protected Item getDropItem() {
	return Items.arrow;
}

protected void dropFewItems(boolean par1, int par2) {
	int j;
	int k;
	j = this.rand.nextInt(3 + par2);
	for(k = 0; k < j; ++k) {
		this.dropItem(Items.arrow, 1);
	}
}

@Override
public void attackEntityWithRangedAttack(EntityLivingBase par1EntityLivingBase, float par2) {
	EntityArrow entityarrow = new EntityArrow(this.worldObj, this, par1EntityLivingBase, 1.6F, (float) (14 - this.worldObj.difficultySetting.getDifficultyId() * 4));
	int i = EnchantmentHelper.getEnchantmentLevel(Enchantment.power.effectId, this.getHeldItem());
	int j = EnchantmentHelper.getEnchantmentLevel(Enchantment.punch.effectId, this.getHeldItem());
	entityarrow.setDamage((double) (par2 * 2.0F) + this.rand.nextGaussian() * 0.25D + (double) ((float) this.worldObj.difficultySetting.getDifficultyId() * 0.11F));
	if(i > 0) {
		entityarrow.setDamage(entityarrow.getDamage() + (double) i * 0.5D + 0.5D);
	}
	if(j > 0) {
		entityarrow.setKnockbackStrength(j);
	}
	if(EnchantmentHelper.getEnchantmentLevel(Enchantment.flame.effectId, this.getHeldItem()) > 0) {
		entityarrow.setFire(100);
	}
	this.playSound("random.bow", 1.0F, 1.0F / (this.getRNG().nextFloat() * 0.4F + 0.8F));
	this.worldObj.spawnEntityInWorld(entityarrow);
}

public double getYOffset() {
	return super.getYOffset() - 0.5D;
}
}

Kain

Quote

March 23, 201411 yr

How about you outsource the custom code within addRandomArmor() to a new method (like addCustomArmor()), call that method in addRandomArmor and also in entityInit() (whilst removing the addRandomArmor() from entityInit())

Seems like the super implementation of addRandomArmor() executes a bunch of code which could possibly cause a NPE during entity construction.

Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! |

mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

Quote

March 23, 201411 yr

Author

Same crash, I think this is because the equipment slots haven't been initialized yet.

Kain

Quote

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Adding random armor on mob spawn (1.7.2)

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