Entity Earth Spike

public class EntityEarthSpike extends AvatarEntity {



    private float damageMult;

    /**
     * @param world
     */
    public EntityEarthSpike(World world) {
        super(world);
        setSize(1, 1);
        this.damageMult = 1.6F;
    }

    public void setDamageMult(float mult) {
        this.damageMult = mult;
    }
    @Override
    protected void readEntityFromNBT(NBTTagCompound nbt) {
        super.readEntityFromNBT(nbt);
    }

    @Override
    protected void writeEntityToNBT(NBTTagCompound nbt) {
        super.writeEntityToNBT(nbt);
        setDead();
    }

    @Override
    public void onEntityUpdate() {

        super.onEntityUpdate();

        setVelocity(Vector.ZERO);

        if (ticksExisted >= 15) {
            this.setDead();
        }
        // amount of entities which were successfully attacked
        int attacked = 0;

        // Push collided entities back
        if (!world.isRemote) {
            List<Entity> collided = world.getEntitiesInAABBexcluding(this, getEntityBoundingBox(),
                    entity -> entity != getOwner());
            if (!collided.isEmpty()) {
                for (Entity entity : collided) {
                    if (attackEntity(entity)) {
                        attacked++;
                    }
                }
            }
        }

        if (!world.isRemote && getOwner() != null) {
            BendingData data = BendingData.get(getOwner());
            if (data != null) {
                data.getAbilityData("earthspike").addXp(SKILLS_CONFIG.earthspikeHit * attacked);
            }
        }

    }

    private boolean attackEntity(Entity entity) {

        if (!(entity instanceof EntityItem && entity.ticksExisted <=
                10) && canCollideWith(entity)) {

            Vector push = velocity().withY(.8).times(STATS_CONFIG.ravineSettings.push);
            entity.addVelocity(push.x(), push.y(), push.z());
            AvatarUtils.afterVelocityAdded(entity);

            DamageSource ds = AvatarDamageSource.causeRavineDamage(entity, getOwner());
            float damage = STATS_CONFIG.ravineSettings.damage * damageMult;
            return entity.attackEntityFrom(ds, damage);


        }

        return false;

    }

}