EntityGreek.java

//I don't think it's supposed to be abstract but I left it there in case.
public /* abstract */ class EntityGreek extends EntityMob implements IRangedAttackMob
{
    private boolean isArcher;
    private EntityAIArrowAttack aiArrowAttack = new EntityAIArrowAttack(this, 1.0D, 20, 60, 15.0F);

    public EntityGreek(World par1World)
    {
        super(par1World);
        getNavigator().setAvoidsWater(true);
        getNavigator().setBreakDoors(true);
        getNavigator().setEnterDoors(true);
        getNavigator().setCanSwim(true);
        getNavigator().getPathSearchRange();
        clearAITasks();
        this.isImmuneToFire(); //what is this for? Did you mean to do the below line? If so, un comment it.
        // this.isImmuneToFire = true;
        this.tasks.addTask(0, new EntityAISwimming(this));
        this.tasks.addTask(3, new EntityAIWander(this, 1.0D));
        this.tasks.addTask(4, new EntityAIWatchClosest(this, EntityPlayer.class, 6.0F));
        this.tasks.addTask(5, new EntityAILookIdle(this));
        this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityRoman.class, 0, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityZombie.class, 0, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntitySkeleton.class, 0, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityCreeper.class, 0, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntitySpider.class, 0, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityCaveSpider.class, 0, true));
        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntitySilverfish.class, 0, true));
        isArcher = new Random().nextBoolean();

        if(!par1World.isRemote)
        {
            setCombatTask();
        }
    }

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

    @Override
    protected void applyEntityAttributes()
    {
        super.applyEntityAttributes();
        this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(30.0D);
        this.getEntityAttribute(SharedMonsterAttributes.followRange).setBaseValue(50.0D);
        this.getEntityAttribute(SharedMonsterAttributes.knockbackResistance).setBaseValue(0.65D);
        this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.25D);
        this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(4.0D);
    }

    protected void clearAITasks()
    {
        tasks.taskEntries.clear();
        targetTasks.taskEntries.clear();
    }

    public void setCombatTask()
    {
        if(isArcher)
        {
            this.tasks.addTask(2, aiArrowAttack);
        }
        else
        {
            this.tasks.addTask(2, new EntityAIAttackOnCollide(this, EntityLivingBase.class, 1.0D, true));
        }
    }

    public ItemStack getHeldItem()
    {
        if (isArcher)
        {
            return new ItemStack(Percyjackson.greekBow);
        }
        else
        {
            return new ItemStack(Percyjackson.xiphos);
        }
    }
}