[SOLVED][1.6.4] Mob Dealing Damage?

saxon564 · October 26, 2013

Now that I have the textures fixed, and another bug repaired, now i want to get the mob to deal damage to a player. I've looked at the code of other mobs and pasted the code that made sence in, but the line i added just causes the mob to "crash" so it doesnt spawn or despawns if already spawned.

Here is the code I have:

package mods.mochickens.mobs;

import net.minecraft.block.Block;
import net.minecraft.entity.EntityAgeable;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIAttackOnCollide;
import net.minecraft.entity.ai.EntityAIFollowParent;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIMate;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAIPanic;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAITempt;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.passive.EntityAnimal;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemSeeds;
import net.minecraft.item.ItemStack;
import net.minecraft.world.World;

public class EntityBlueChicken extends EntityAnimal
{
    public boolean field_70885_d = false;
    public float field_70886_e = 0.0F;
    public float destPos = 0.0F;
    public float field_70884_g;
    public float field_70888_h;
    public float field_70889_i = 1.0F;

    /** The time until the next egg is spawned. */
    public int timeUntilNextEgg;

    public EntityBlueChicken(World par1World)
    {
        super(par1World);
        this.setSize(0.3F, 0.7F);
        this.timeUntilNextEgg = this.rand.nextInt(6000) + 6000;
        float f = 0.25F;
        this.tasks.addTask(0, new EntityAISwimming(this));
        this.tasks.addTask(1, new EntityAIPanic(this, 1.4D));
        this.tasks.addTask(2, new EntityAIMate(this, 1.0D));
        this.tasks.addTask(2, new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.0D, false));
        this.tasks.addTask(3, new EntityAITempt(this, 1.0D, Block.blockDiamond.blockID, false));
        this.tasks.addTask(4, new EntityAIFollowParent(this, 1.1D));
        this.tasks.addTask(5, new EntityAIWander(this, 1.0D));
        this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 6.0F));
        this.tasks.addTask(7, new EntityAILookIdle(this));
        this.targetTasks.addTask(1, new EntityAINearestAttackableTarget(this, EntityPlayer.class, 0, true));
    }

    /**
     * Returns true if the newer Entity AI code should be run
     */
    public boolean isAIEnabled()
    {
        return true;
    }

    protected void applyEntityAttributes()
    {
        super.applyEntityAttributes();
        this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setAttribute(4.0D);
        this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setAttribute(0.25D);
    }

    /**
     * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
     * use this to react to sunlight and start to burn.
     */
    public void onLivingUpdate()
    {
    	super.onLivingUpdate();
        this.field_70888_h = this.field_70886_e;
        this.field_70884_g = this.destPos;
        this.destPos = (float)((double)this.destPos + (double)(this.onGround ? -1 : 4) * 0.3D);

        if (this.destPos < 0.0F)
        {
            this.destPos = 0.0F;
        }

        if (this.destPos > 1.0F)
        {
            this.destPos = 1.0F;
        }

        if (!this.onGround && this.field_70889_i < 1.0F)
        {
            this.field_70889_i = 1.0F;
        }

        this.field_70889_i = (float)((double)this.field_70889_i * 0.9D);

        if (!this.onGround && this.motionY < 0.0D)
        {
            this.motionY *= 0.6D;
        }

        this.field_70886_e += this.field_70889_i * 2.0F;

        if (!this.isChild() && !this.worldObj.isRemote && --this.timeUntilNextEgg <= 0)
        {
            this.playSound("mob.chicken.plop", 1.0F, (this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F + 1.0F);
            this.dropItem(Item.diamond.itemID, 1);
            this.timeUntilNextEgg = this.rand.nextInt(6000) + 6000;
        }
    }

    /**
     * Called when the mob is falling. Calculates and applies fall damage.
     */
    protected void fall(float par1) {}

    /**
     * Returns the sound this mob makes while it's alive.
     */
    protected String getLivingSound()
    {
        return "mob.chicken.say";
    }

    /**
     * Returns the sound this mob makes when it is hurt.
     */
    protected String getHurtSound()
    {
        return "mob.chicken.hurt";
    }

    /**
     * Returns the sound this mob makes on death.
     */
    protected String getDeathSound()
    {
        return "mob.chicken.hurt";
    }

    /**
     * Plays step sound at given x, y, z for the entity
     */
    protected void playStepSound(int par1, int par2, int par3, int par4)
    {
        this.playSound("mob.chicken.step", 0.15F, 1.0F);
    }

    /**
     * Returns the item ID for the item the mob drops on death.
     */
    protected int getDropItemId()
    {
        return Item.diamond.itemID;
    }

    /**
     * Drop 0-2 items of this living's type. @param par1 - Whether this entity has recently been hit by a player. @param
     * par2 - Level of Looting used to kill this mob.
     */
    protected void dropFewItems(boolean par1, int par2)
    {
        int j = this.rand.nextInt(3) + this.rand.nextInt(1 + par2);

        for (int k = 0; k < j; ++k)
        {
            this.dropItem(Item.diamond.itemID, 1);
        }

        if (this.isBurning())
        {
            this.dropItem(Item.chickenCooked.itemID, 1);
        }
        else
        {
            this.dropItem(Item.chickenRaw.itemID, 1);
        }
    }

    /**
     * This function is used when two same-species animals in 'love mode' breed to generate the new baby animal.
     */
    public EntityBlueChicken spawnBabyAnimal(EntityAgeable par1EntityAgeable)
    {
        return new EntityBlueChicken(this.worldObj);
    }

    /**
     * Checks if the parameter is an item which this animal can be fed to breed it (wheat, carrots or seeds depending on
     * the animal type)
     */
    public boolean isBreedingItem(ItemStack par1ItemStack)
    {
        return par1ItemStack != null && par1ItemStack.itemID == Item.diamond.itemID;
    }

    public EntityAgeable createChild(EntityAgeable par1EntityAgeable)
    {
        return this.spawnBabyAnimal(par1EntityAgeable);
    }
}

here is the line that ive been trying to add to the applyEntityAttributes() method:

this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(3.0D);

Here is the error i have been getting:

2013-10-25 23:17:18 [iNFO] [sTDERR] java.lang.reflect.InvocationTargetException

2013-10-25 23:17:18 [iNFO] [sTDERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

2013-10-25 23:17:18 [iNFO] [sTDERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

2013-10-25 23:17:18 [iNFO] [sTDERR] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

2013-10-25 23:17:18 [iNFO] [sTDERR] at java.lang.reflect.Constructor.newInstance(Unknown Source)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:205)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:175)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:81)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:152)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.item.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:429)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.handlePlace(NetServerHandler.java:556)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.network.packet.Packet15Place.processPacket(Packet15Place.java:79)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.network.MemoryConnection.processReadPackets(MemoryConnection.java:89)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.networkTick(NetServerHandler.java:141)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.network.NetworkListenThread.networkTick(NetworkListenThread.java:54)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:109)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:691)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:587)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:129)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)

2013-10-25 23:17:18 [iNFO] [sTDERR] Caused by: java.lang.NullPointerException

2013-10-25 23:17:18 [iNFO] [sTDERR] at mods.mochickens.mobs.EntityBlueChicken.applyEntityAttributes(EntityBlueChicken.java:64)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:193)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:85)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:40)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.entity.EntityAgeable.<init>(EntityAgeable.java:16)

2013-10-25 23:17:18 [iNFO] [sTDERR] at net.minecraft.entity.passive.EntityAnimal.<init>(EntityAnimal.java:31)

2013-10-25 23:17:18 [iNFO] [sTDERR] at mods.mochickens.mobs.EntityBlueChicken.<init>(EntityBlueChicken.java:37)

2013-10-25 23:17:18 [iNFO] [sTDERR] ... 20 more

2013-10-25 23:17:18 [WARNING] [Minecraft-Server] Skipping Entity with id 301

Draco18s · October 26, 2013

Try looking for attackEntityAsMob(Entity par1Entity) and adding that to your class

saxon564 · October 26, 2013

added that method and the problem persists. i really have no idea what exactly i need to do to get it to work.

Updated Code:

package mods.mochickens.mobs;

import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityAgeable;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIAttackOnCollide;
import net.minecraft.entity.ai.EntityAIFollowParent;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIMate;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAIPanic;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAITempt;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.passive.EntityAnimal;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemSeeds;
import net.minecraft.item.ItemStack;
import net.minecraft.world.World;

public class EntityBlueChicken extends EntityAnimal
{
    public boolean field_70885_d = false;
    public float field_70886_e = 0.0F;
    public float destPos = 0.0F;
    public float field_70884_g;
    public float field_70888_h;
    public float field_70889_i = 1.0F;

    /** The time until the next egg is spawned. */
    public int timeUntilNextEgg;

    public EntityBlueChicken(World par1World)
    {
        super(par1World);
        this.setSize(0.3F, 0.7F);
        this.timeUntilNextEgg = this.rand.nextInt(6000) + 6000;
        float f = 0.25F;
        this.tasks.addTask(0, new EntityAISwimming(this));
        this.tasks.addTask(1, new EntityAIPanic(this, 1.4D));
        this.tasks.addTask(2, new EntityAIMate(this, 1.0D));
        this.tasks.addTask(2, new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.0D, false));
        this.tasks.addTask(3, new EntityAITempt(this, 1.0D, Block.blockDiamond.blockID, false));
        this.tasks.addTask(4, new EntityAIFollowParent(this, 1.1D));
        this.tasks.addTask(5, new EntityAIWander(this, 1.0D));
        this.tasks.addTask(6, new EntityAIWatchClosest(this, EntityPlayer.class, 6.0F));
        this.tasks.addTask(7, new EntityAILookIdle(this));
        this.targetTasks.addTask(1, new EntityAINearestAttackableTarget(this, EntityPlayer.class, 0, true));
    }

    /**
     * Returns true if the newer Entity AI code should be run
     */
    public boolean isAIEnabled()
    {
        return true;
    }

    protected void applyEntityAttributes()
    {
        super.applyEntityAttributes();
        this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setAttribute(3.0D);
        this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setAttribute(4.0D);
        this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setAttribute(0.25D);
    }
    
    public boolean attackEntityAsMob(Entity par1Entity)
    {
        return true;
    }


    /**
     * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
     * use this to react to sunlight and start to burn.
     */
    public void onLivingUpdate()
    {
    	super.onLivingUpdate();
        this.field_70888_h = this.field_70886_e;
        this.field_70884_g = this.destPos;
        this.destPos = (float)((double)this.destPos + (double)(this.onGround ? -1 : 4) * 0.3D);

        if (this.destPos < 0.0F)
        {
            this.destPos = 0.0F;
        }

        if (this.destPos > 1.0F)
        {
            this.destPos = 1.0F;
        }

        if (!this.onGround && this.field_70889_i < 1.0F)
        {
            this.field_70889_i = 1.0F;
        }

        this.field_70889_i = (float)((double)this.field_70889_i * 0.9D);

        if (!this.onGround && this.motionY < 0.0D)
        {
            this.motionY *= 0.6D;
        }

        this.field_70886_e += this.field_70889_i * 2.0F;

        if (!this.isChild() && !this.worldObj.isRemote && --this.timeUntilNextEgg <= 0)
        {
            this.playSound("mob.chicken.plop", 1.0F, (this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F + 1.0F);
            this.dropItem(Item.diamond.itemID, 1);
            this.timeUntilNextEgg = this.rand.nextInt(6000) + 6000;
        }
    }

    /**
     * Called when the mob is falling. Calculates and applies fall damage.
     */
    protected void fall(float par1) {}

    /**
     * Returns the sound this mob makes while it's alive.
     */
    protected String getLivingSound()
    {
        return "mob.chicken.say";
    }

    /**
     * Returns the sound this mob makes when it is hurt.
     */
    protected String getHurtSound()
    {
        return "mob.chicken.hurt";
    }

    /**
     * Returns the sound this mob makes on death.
     */
    protected String getDeathSound()
    {
        return "mob.chicken.hurt";
    }

    /**
     * Plays step sound at given x, y, z for the entity
     */
    protected void playStepSound(int par1, int par2, int par3, int par4)
    {
        this.playSound("mob.chicken.step", 0.15F, 1.0F);
    }

    /**
     * Returns the item ID for the item the mob drops on death.
     */
    protected int getDropItemId()
    {
        return Item.diamond.itemID;
    }

    /**
     * Drop 0-2 items of this living's type. @param par1 - Whether this entity has recently been hit by a player. @param
     * par2 - Level of Looting used to kill this mob.
     */
    protected void dropFewItems(boolean par1, int par2)
    {
        int j = this.rand.nextInt(3) + this.rand.nextInt(1 + par2);

        for (int k = 0; k < j; ++k)
        {
            this.dropItem(Item.diamond.itemID, 1);
        }

        if (this.isBurning())
        {
            this.dropItem(Item.chickenCooked.itemID, 1);
        }
        else
        {
            this.dropItem(Item.chickenRaw.itemID, 1);
        }
    }

    /**
     * This function is used when two same-species animals in 'love mode' breed to generate the new baby animal.
     */
    public EntityBlueChicken spawnBabyAnimal(EntityAgeable par1EntityAgeable)
    {
        return new EntityBlueChicken(this.worldObj);
    }

    /**
     * Checks if the parameter is an item which this animal can be fed to breed it (wheat, carrots or seeds depending on
     * the animal type)
     */
    public boolean isBreedingItem(ItemStack par1ItemStack)
    {
        return par1ItemStack != null && par1ItemStack.itemID == Item.diamond.itemID;
    }

    public EntityAgeable createChild(EntityAgeable par1EntityAgeable)
    {
        return this.spawnBabyAnimal(par1EntityAgeable);
    }
}

most recent error:

2013-10-26 00:26:31 [iNFO] [sTDERR] java.lang.reflect.InvocationTargetException

2013-10-26 00:26:31 [iNFO] [sTDERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

2013-10-26 00:26:31 [iNFO] [sTDERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

2013-10-26 00:26:31 [iNFO] [sTDERR] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

2013-10-26 00:26:31 [iNFO] [sTDERR] at java.lang.reflect.Constructor.newInstance(Unknown Source)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.entity.EntityList.createEntityByID(EntityList.java:205)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:175)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:81)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:152)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.item.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:429)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.handlePlace(NetServerHandler.java:556)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.network.packet.Packet15Place.processPacket(Packet15Place.java:79)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.network.MemoryConnection.processReadPackets(MemoryConnection.java:89)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.networkTick(NetServerHandler.java:141)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.network.NetworkListenThread.networkTick(NetworkListenThread.java:54)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:109)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:691)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:587)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:129)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)

2013-10-26 00:26:31 [iNFO] [sTDERR] Caused by: java.lang.NullPointerException

2013-10-26 00:26:31 [iNFO] [sTDERR] at mods.mochickens.mobs.EntityBlueChicken.applyEntityAttributes(EntityBlueChicken.java:65)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:193)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:85)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:40)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.entity.EntityAgeable.<init>(EntityAgeable.java:16)

2013-10-26 00:26:31 [iNFO] [sTDERR] at net.minecraft.entity.passive.EntityAnimal.<init>(EntityAnimal.java:31)

2013-10-26 00:26:31 [iNFO] [sTDERR] at mods.mochickens.mobs.EntityBlueChicken.<init>(EntityBlueChicken.java:38)

2013-10-26 00:26:31 [iNFO] [sTDERR] ... 20 more

2013-10-26 00:26:31 [WARNING] [Minecraft-Server] Skipping Entity with id 301

ItsTheRuski · October 26, 2013

Maybe it is because your BlueChicken extends EntityAnimal instead of EntityCreature?

Draco18s · October 26, 2013

Maybe it is because your BlueChicken extends EntityAnimal instead of EntityCreature?

I think zombies use EntityMob, but yes. EntityAnimal doesn't have the attack function. Which is why wolves are in the hostile mobs package.

saxon564 · October 26, 2013

I've looked at the wolf class because i do want it to be possible to tame the mob, so i set the extending class to EntityTameable. which still didnt fix the problem. the error sounds like the collision is returning null. at this point im wondering if there is a way to manually code this in. if i make it extend EntityCreature or EntityMob its breaks the mating part of it as well as means i cant make it tameable. code and error did not change except for trying to extend the different entities and ended on EntityTamable.

@Draco EntityWolf is in the passive package, not the hostile package.

Draco18s · October 26, 2013

@Draco EntityWolf is in the passive package, not the hostile package.

...You are correct. It's iron golems that are in hostile.

(And this emphasizes why the package differentiation is almost meaningless).

I unfortunately don't have a solution for you. All my mob coding has been taking something that's close to what I want and modifying it.

coolAlias · October 27, 2013

If you use attackEntityAsMob as Draco suggested, you can inflict damage directly to the entity attacked by using the attackEntityFrom method with no need for using attributes.

public boolean attackEntityAsMob(Entity par1Entity)
{
  // This will inflice 3 damage as a mob to the entity struck:
  par1Entity.attackEntityFrom(DamageSource.causeMobDamage(this), 3.0F);
  this.setLastAttacker(par1Entity);
  return false;
}

If you really want to use the attribute system, you will have to add the correct attribute to the attribute map before you can set it, if it has not been added already by a super class.

saxon564 · October 27, 2013

Thanks! i had actually just figured it out myself, but used a lot more lines of code because i copied it from the EntityMob class. I think i'll use the way i found because it shows more of how i can customize what happens to the player, but your help was still much appreciated. now on to making it so you can tame it and it will stop attacking you. think this will be a bit easier than the damage thing was, though once i thought of it i realized that it was an easy thing to get working. anyway thanks for your help!

Code i am using for those that are seeing this in the future:

public boolean attackEntityAsMob(Entity par1Entity)
    {
    	EntityPlayer entityplayer = this.worldObj.getClosestVulnerablePlayerToEntity(this, 16.0D);
    	float f = (float) 3.0D;
        int i = 0;

        if (entityplayer instanceof EntityLivingBase)
        {
            f += EnchantmentHelper.getEnchantmentModifierLiving(this, (EntityLivingBase)entityplayer);
            i += EnchantmentHelper.getKnockbackModifier(this, (EntityLivingBase)entityplayer);
        }

        boolean flag = par1Entity.attackEntityFrom(DamageSource.causeMobDamage(this), f);

        if (flag)
        {
            if (i > 0)
            {
            	entityplayer.addVelocity((double)(-MathHelper.sin(this.rotationYaw * (float)Math.PI / 180.0F) * (float)i * 0.5F), 0.1D, (double)(MathHelper.cos(this.rotationYaw * (float)Math.PI / 180.0F) * (float)i * 0.5F));
                this.motionX *= 0.6D;
                this.motionZ *= 0.6D;
            }

            int j = EnchantmentHelper.getFireAspectModifier(this);

            if (j > 0)
            {
            	entityplayer.setFire(j * 4);
            }

            if (entityplayer instanceof EntityLivingBase)
            {
                EnchantmentThorns.func_92096_a(this, (EntityLivingBase)entityplayer, this.rand);
            }
        }

        return flag;
    }

(some of this isnt needed but im keeping it for refernce)

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[SOLVED][1.6.4] Mob Dealing Damage?

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