Mob attack

[Soulas97]

hey, guys i have a question, how to make that when mob attacks you or other entyti ,he sets target on fire, and knockbacks it.?

how to make that? and maybe adds wither effect to it?

[Soulas97]

my mob, when it attacks other entity or targets a player, he specialisizes on charging on enemies,

hell bull

 

[jabelar]

You might want to check out my tutorial on the subject (assuming you mean a custom mob).  http://jabelarminecraft.blogspot.com/p/minecraft-forge-172-understanding_16.html

 

The short answer is that the attackEntityAsMob() method (in the attacker entity) controls the knockback and application of enchantments and fire effects.

[Soulas97]

and it will work on other mobs, if i add to a attacker entity? fire aspect on attack

[jabelar]

Yes, look at the code in my tutorial.  It will set fire on the attacked entity depending on the modifiers.  In your case you might change the code to always set fire (instead of looking for other modifiers).  Note that if the target is immune to fire it will not catch fire.

[Soulas97]

where to type it? because when i type it before ai = false i get many errors/

[jabelar]

The method should be called automatically.  All classes that are derived (extended from) EntityLivingBase have the attackEntityAsMob() method and this is automatically called during an attack -- you shouldn't have to call it yourself.  However, you should @Override it in your class to do what you want.  So if you have a custom entity class you should do what I explained in the tutorial -- put that method in your class and modify the code to do what you like.

 

What is your custom entity code?  Can you post it?

[Soulas97]

package com.hogans.craft.entities;

 

import com.hogans.craft.HogansCraft;

 

import net.minecraft.block.Block;

import net.minecraft.enchantment.EnchantmentHelper;

import net.minecraft.entity.Entity;

import net.minecraft.entity.EntityLiving;

import net.minecraft.entity.EntityLivingBase;

import net.minecraft.entity.SharedMonsterAttributes;

import net.minecraft.entity.ai.EntityAIAttackOnCollide;

import net.minecraft.entity.ai.EntityAIAvoidEntity;

import net.minecraft.entity.ai.EntityAIBreakDoor;

import net.minecraft.entity.ai.EntityAIHurtByTarget;

import net.minecraft.entity.ai.EntityAILeapAtTarget;

import net.minecraft.entity.ai.EntityAILookIdle;

import net.minecraft.entity.ai.EntityAIMoveThroughVillage;

import net.minecraft.entity.ai.EntityAINearestAttackableTarget;

import net.minecraft.entity.ai.EntityAIOpenDoor;

import net.minecraft.entity.ai.EntityAISwimming;

import net.minecraft.entity.ai.EntityAIWander;

import net.minecraft.entity.ai.EntityAIWatchClosest;

import net.minecraft.entity.boss.EntityWither;

import net.minecraft.entity.monster.EntityCaveSpider;

import net.minecraft.entity.monster.EntityCreeper;

import net.minecraft.entity.monster.EntityEnderman;

import net.minecraft.entity.monster.EntityIronGolem;

import net.minecraft.entity.monster.EntityMob;

import net.minecraft.entity.monster.EntitySkeleton;

import net.minecraft.entity.monster.EntitySlime;

import net.minecraft.entity.monster.EntitySpider;

import net.minecraft.entity.monster.EntityWitch;

import net.minecraft.entity.monster.EntityZombie;

import net.minecraft.entity.passive.EntityBat;

import net.minecraft.entity.passive.EntityChicken;

import net.minecraft.entity.passive.EntityCow;

import net.minecraft.entity.passive.EntityHorse;

import net.minecraft.entity.passive.EntityOcelot;

import net.minecraft.entity.passive.EntityPig;

import net.minecraft.entity.passive.EntitySheep;

import net.minecraft.entity.passive.EntitySquid;

import net.minecraft.entity.passive.EntityVillager;

import net.minecraft.entity.passive.EntityWolf;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.init.Items;

import net.minecraft.item.Item;

import net.minecraft.item.ItemStack;

import net.minecraft.potion.Potion;

import net.minecraft.potion.PotionEffect;

import net.minecraft.util.DamageSource;

import net.minecraft.util.MathHelper;

import net.minecraft.world.EnumDifficulty;

import net.minecraft.world.World;

import net.minecraftforge.common.ForgeModContainer;

 

 

public class EntityBull extends EntityMob {

 

 

 

 

 

 

 

 

public EntityBull(World world) {

super(world);

isImmuneToFire = false;

 

getNavigator().clearPathEntity();

getNavigator().setBreakDoors(true);

//getNavigator().func_48679_a(true);

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

tasks.addTask(2, new EntityAILeapAtTarget(this, 0.4F));

        this.tasks.addTask(4, new EntityAIAttackOnCollide(this, EntityLiving.class, 1.0D, true));

        this.tasks.addTask(4, new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.0D, true));

        this.tasks.addTask(5, new EntityAIWander(this, 2.0D));

        this.tasks.addTask(6, new EntityAIMoveThroughVillage(this, 1.0D, false));

        this.tasks.addTask(8, new EntityAIWatchClosest(this, EntityPlayer.class, 60.0F));

        this.tasks.addTask(9, new EntityAIBreakDoor(this));

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

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

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

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

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityCow.class, 1, true));

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityWolf.class, 1, true));

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityHorse.class, 1, true));

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

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

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntitySpider.class, 3, true));

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityIronGolem.class, 3, true));

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityCaveSpider.class, 4, true));

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityEnderman.class, 4, true));

        this.despawnEntity(false);

       

}

 

 

 

 

 

 

   

 

 

 

 

 

private void despawnEntity(boolean b) {

// TODO Auto-generated method stub

 

}

 

 

 

 

 

 

 

 

 

 

 

 

protected Item getDropItem()

    {

        return HogansCraft.CrazyMushroom;

    }

   

    protected void dropRareDrop(int par1) {

    this.entityDropItem(new ItemStack(HogansCraft.BullsTear, 1, 1), 0.0F);

    }

   

 

 

   

   

   

    protected String getLivingSound()

    {

        return "mob.cow.say";

    }

 

 

    /**

    * Returns the sound this mob makes when it is hurt.

    */

    protected String getHurtSound()

    {

        return "mob.cow.hurt";

    }

 

    /**

    * Returns the sound this mob makes on death.

    */

    protected String getDeathSound()

    {

        return "mob.cow.death";

    }

 

    protected void func_145780_a(int p_145780_1_, int p_145780_2_, int p_145780_3_, Block p_145780_4_)

    {

        this.playSound("mob.cow.step", 0.15F, 1.0F);

    }

   

   

   

   

   

   

   

   

   

   

   

   

   

   

   

   

 

protected void applyEntityAttributes()

    {

        super.applyEntityAttributes();

        this.getEntityAttribute(SharedMonsterAttributes.followRange).setBaseValue(150.0D);

        this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.34000000417232513D);

        this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(12.0D);

        this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(150.0D);

        this.getEntityAttribute(SharedMonsterAttributes.knockbackResistance).setBaseValue(10.0D);

    }

 

 

  //* Returns the current armor value as determined by a call to InventoryPlayer.getTotalArmorValue

   

  public int getTotalArmorValue()

  {

          return 25;

  }

 

 

 

 

protected boolean isAIEnabled()

    {

        return true;

    }

 

 

 

}

 

 

 

 

 

 

       

       

     

 

 

 

[jabelar]

Okay, because you have extended EntityMob, it already has a full attackEntityAsMob() method.  However, that method will only set fire if you set the enchantment fire modifier.  So you have two options:

 

1) You can leave the attackEntityAsMob() method alone and instead set the enchantment fire modifier for your entity.

2) You can override the attackEntityAsMob() method, copy what I put in my tutorial, and at the part where where it checks for fire enchantment just modify that part so it always applies fire damage.

 

Note also, in your entity constructor you don't give your bull fire immunity.  You might want to set that to true.

[Soulas97]

post example code,please how to make, when he attacks, maybe just knockbacks target straight or in to the air

[jabelar]

Did you read my tutorial?  It has all the code.  The knockback is where it checks for knockback and then modifies the motion of the target.

[Soulas97]

i still getting errors on

this line

  if (entityTargetinstanceof EntityLivingBase)

    {

[jabelar]

There should be a space before instanceof.

if (entityTarget instanceof EntityLivingBase)

[Soulas97]

does it works same way, with when other entity is in range with my entity and, to get it on fire when it is in range like 5-10blocks

[jabelar]

  On 6/19/2014 at 1:33 PM, Soulas97 said:

does it works same way, with when other entity is in range with my entity and, to get it on fire when it is in range like 5-10blocks

 

You'd have to write code for that.  You need to put the code in some sort of update method or tick event, probably onLivingUpdate() in your entity class, and there you'd check for entities within range and then with those you find you'd set fire with the same method described above.

[Soulas97]

like how to to that properly i know that on update tick, but do you have an example code for that, please to set nearest entities on fire, like EntityLiving

[jabelar]

Sorry but you should show what you tried if you want help.  Can't ask people to write your code for you. I already gave you the general instruction. Try to follow that instruction, post what you've tried.  I'm happy to look at code, but won't write it for you.  You'll learn a lot more that way.

[Soulas97]

i tried but i doesn't work

[Zer0HD2]

Unless you give us the code of what you tried, we can't tell you where you're going wrong.

[Soulas97]

 

  Reveal hidden contents

package com.hogans.craft.entities;

 

import com.hogans.craft.HogansCraft;

 

import net.minecraft.block.Block;

import net.minecraft.enchantment.EnchantmentHelper;

import net.minecraft.entity.Entity;

import net.minecraft.entity.EntityAgeable;

import net.minecraft.entity.EntityLiving;

import net.minecraft.entity.EntityLivingBase;

import net.minecraft.entity.SharedMonsterAttributes;

import net.minecraft.entity.ai.EntityAIAttackOnCollide;

import net.minecraft.entity.ai.EntityAIAvoidEntity;

import net.minecraft.entity.ai.EntityAIBreakDoor;

import net.minecraft.entity.ai.EntityAIHurtByTarget;

import net.minecraft.entity.ai.EntityAILeapAtTarget;

import net.minecraft.entity.ai.EntityAILookIdle;

import net.minecraft.entity.ai.EntityAIMoveThroughVillage;

import net.minecraft.entity.ai.EntityAINearestAttackableTarget;

import net.minecraft.entity.ai.EntityAIOpenDoor;

import net.minecraft.entity.ai.EntityAISwimming;

import net.minecraft.entity.ai.EntityAIWander;

import net.minecraft.entity.ai.EntityAIWatchClosest;

import net.minecraft.entity.boss.EntityWither;

import net.minecraft.entity.boss.IBossDisplayData;

import net.minecraft.entity.item.EntityEnderCrystal;

import net.minecraft.entity.item.EntityMinecart;

import net.minecraft.entity.monster.EntityBlaze;

import net.minecraft.entity.monster.EntityCaveSpider;

import net.minecraft.entity.monster.EntityCreeper;

import net.minecraft.entity.monster.EntityEnderman;

import net.minecraft.entity.monster.EntityIronGolem;

import net.minecraft.entity.monster.EntityMagmaCube;

import net.minecraft.entity.monster.EntityMob;

import net.minecraft.entity.monster.EntityPigZombie;

import net.minecraft.entity.monster.EntitySkeleton;

import net.minecraft.entity.monster.EntitySlime;

import net.minecraft.entity.monster.EntitySpider;

import net.minecraft.entity.monster.EntityWitch;

import net.minecraft.entity.monster.EntityZombie;

import net.minecraft.entity.passive.EntityAnimal;

import net.minecraft.entity.passive.EntityBat;

import net.minecraft.entity.passive.EntityChicken;

import net.minecraft.entity.passive.EntityCow;

import net.minecraft.entity.passive.EntityHorse;

import net.minecraft.entity.passive.EntityOcelot;

import net.minecraft.entity.passive.EntityPig;

import net.minecraft.entity.passive.EntitySheep;

import net.minecraft.entity.passive.EntitySquid;

import net.minecraft.entity.passive.EntityVillager;

import net.minecraft.entity.passive.EntityWolf;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.init.Blocks;

import net.minecraft.init.Items;

import net.minecraft.item.Item;

import net.minecraft.item.ItemStack;

import net.minecraft.potion.Potion;

import net.minecraft.potion.PotionEffect;

import net.minecraft.util.DamageSource;

import net.minecraft.util.MathHelper;

import net.minecraft.world.EnumDifficulty;

import net.minecraft.world.World;

import net.minecraftforge.common.ForgeModContainer;

 

 

public class EntityNetherBullKing extends EntityMob {

 

 

 

 

 

 

 

 

 

 

 

 

public EntityNetherBullKing(World world) {

super(world);

this.setSize(1.0F, 2.0F);

isImmuneToFire = true;

 

 

getNavigator().clearPathEntity();

getNavigator().setBreakDoors(true);

getNavigator().setAvoidsWater(true);

 

 

//getNavigator().func_48679_a(true);

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

tasks.addTask(2, new EntityAILeapAtTarget(this, 0.4F));

        this.tasks.addTask(4, new EntityAIAttackOnCollide(this, EntityLiving.class, 1.0D, true));

        this.tasks.addTask(4, new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.0D, true));

        this.tasks.addTask(5, new EntityAIWander(this, 2.5D));

        this.tasks.addTask(6, new EntityAIMoveThroughVillage(this, 3.0D, false));

        this.tasks.addTask(8, new EntityAIWatchClosest(this, EntityPlayer.class, 60.0F));

        this.tasks.addTask(9, new EntityAIBreakDoor(this));

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

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

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

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityAnimal.class, 1, true));

        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityAgeable.class, 1, true));

       

 

     

       

        }

       

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

private void despawnEntity(boolean b) {

// TODO Auto-generated method stub

 

}

 

 

 

 

 

 

 

 

 

 

 

 

protected Item getDropItem()

    {

        return Items.nether_wart;

    }

   

    protected void dropRareDrop(int par1) {

    this.entityDropItem(new ItemStack(Blocks.beacon, 1, 1), 0.0F);

    }

   

 

 

   

   

   

    protected String getLivingSound()

    {

        return "mob.cow.say";

    }

 

 

    /**

    * Returns the sound this mob makes when it is hurt.

    */

    protected String getHurtSound()

    {

        return "mob.cow.hurt";

    }

 

    /**

    * Returns the sound this mob makes on death.

    */

    protected String getDeathSound()

    {

        return "mob.cow.death";

    }

 

    protected void func_145780_a(int p_145780_1_, int p_145780_2_, int p_145780_3_, Block p_145780_4_)

    {

        this.playSound("mob.cow.step", 0.15F, 1.0F);

    }

   

   

   

   

   

   

   

   

   

   

   

   

   

   

   

   

 

protected void applyEntityAttributes()

    {

        super.applyEntityAttributes();

        this.getEntityAttribute(SharedMonsterAttributes.followRange).setBaseValue(250.0D);

        this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.34000000417232513D);

        this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(50.0D);

        this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(1500.0D);

        this.getEntityAttribute(SharedMonsterAttributes.knockbackResistance).setBaseValue(1.0D);

       

    }

 

 

  //* Returns the current armor value as determined by a call to InventoryPlayer.getTotalArmorValue

   

  public int getTotalArmorValue()

  {

          return 50;

  }

 

 

 

 

 

 

  public boolean attackEntityAsMob(Entity entityTarget, boolean wasDamageDone)

  {

      float attackDamage = (float)getEntityAttribute(SharedMonsterAttributes

            .attackDamage).getAttributeValue();

      int knockbackModifier = 0;

 

      if (entityTarget instanceof EntityLivingBase)

      {

          attackDamage += EnchantmentHelper.getEnchantmentModifierLiving(this,

                (EntityLivingBase)entityTarget);

          knockbackModifier  += EnchantmentHelper.getKnockbackModifier(this,

                (EntityLivingBase)entityTarget);

      }

 

      boolean isTargetHurt = entityTarget.attackEntityFrom(DamageSource

            .causeMobDamage(this), attackDamage);

 

      if (wasDamageDone)

      {

          if (knockbackModifier  > 0)

          {

              entityTarget.addVelocity((double)(-MathHelper.sin(rotationYaw *

                    (float)Math.PI / 180.0F) * (float)knockbackModifier  * 0.5F),

                      0.1D, (double)(MathHelper.cos(rotationYaw *

                    (float)Math.PI / 180.0F) * (float)knockbackModifier  * 0.5F));

              motionX *= 0.6D;

              motionZ *= 0.6D;

          }

 

          int fireModifier = EnchantmentHelper.getFireAspectModifier(this);

 

          if (fireModifier > 0)

          {

              entityTarget.setFire(fireModifier * 4);

          }

 

          // I copied these enchantments from EntityMob, not sure what they do

          if (entityTarget instanceof EntityLivingBase)

          {

              EnchantmentHelper.func_151384_a((EntityLivingBase)entityTarget, this);

          }

 

          EnchantmentHelper.func_151385_b(this, entityTarget);

      }

 

      return isTargetHurt ;

  }

 

 

 

 

 

 

 

 

 

 

protected boolean isAIEnabled()

    {

        return true;

   

 

 

    }

 

 

 

        }

 

   

   

 

 

 

 

 

 

[Zer0HD2]

That is not how you override a method.

[jabelar]

In your code I don't see (maybe I missed it?) any code related to trying to look for entities to set fire to.  I only see the attackEntityAsMob() method which I already helped you with.

 

As mentioned you need to override the onLivingUpdate() method and add code that looks for entities within certain bounding box and then takes those and sets fire.

[Zer0HD2]

Can he not directly get the target from attackEntityAsMob(), and set fire to that entity? That is, after overriding it properly.

[Soulas97]

when i try to add @Override over them i get an error

at this line attackEntityAsMob(Entity entityTarget, boolean wasDamageDone)

idk why it says to remove @Override

[Zer0HD2]

Probably because the method attackEntityAsMob() in the EntityMob class does not have the second argument that you supplied. In other words, you have created a new method, not overridden the existing one.