My entity goes through entities by using:

if (!this.worldObj.isRemote)
        {
            this.doBlockCollisions();
        }

 

So my question is.... why does this occur? This works for everything except for the llama_spit entity.

When using the execute command to execute a summon of the .doBlockCollision entity on it.

 

The spit juts forward and makes it look like the entity summoned at it is hitting a wall, only one is summoned then it falls down.

(Using repeat and always active.)

 

Is there any information in regards to this? Is this something being considered?

 

I'm not saying this is a bug, or its good. I haven't messed with it enough. ;

 

 

 

 

Its also ignoring doBlockCollision when specified on impact, which is interesting. I need to look at the vanilla fireball.

 

public class EntityNetherOrb extends EntityOrb
{
public EntityNetherOrb(World worldIn)
    {
        super(worldIn);
    }
    public EntityNetherOrb(World worldIn, EntityLivingBase throwerIn)
    {
        super(worldIn, throwerIn);
    }
    public void onUpdate()
    {
    	super.onUpdate();
    	for (int j = 0; j < 1.4; ++j)
        {
    	this.worldObj.spawnParticle(EnumParticleTypes.DRAGON_BREATH, posX + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, posY + (worldObj.rand.nextFloat() / -1 - worldObj.rand.nextFloat()) / -1.9, posZ + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, 0, 0, 0);
        }
	this.worldObj.spawnParticle(EnumParticleTypes.PORTAL, posX + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, posY + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, posZ + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / -7, 0, 0, 0);
	this.worldObj.spawnParticle(EnumParticleTypes.PORTAL, posX + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, posY + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, posZ + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / -8, 0, 0, 0);
    }
    public float getGravityVelocity()
    {
        return 0.014F;
    }
    public EntityNetherOrb(World worldIn, double x, double y, double z)
    {
        super(worldIn, x, y, z);
    }
    protected void onImpact(RayTraceResult result)
    {
        if (result.entityHit != null)
        {
            int i = 0;
            if (ticksExisted >= 2.6210000524 && result.entityHit instanceof EntityLivingBase)
            {
                i = 8;
            }
            if (result.entityHit instanceof EntityLlamaSpit)
            {
            	this.doBlockCollisions();
            }
            result.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), (float)i);
            worldObj.playSound((EntityPlayer)null, posX, posY, posZ, SoundEvents.ENTITY_ENDERMEN_TELEPORT, SoundCategory.NEUTRAL, 0.5F, 1.9F / (worldObj.rand.nextFloat() * 0.4F + 0.8F));
        }
        for (int j = 0; j < 8; ++j)
        {
            this.worldObj.spawnParticle(EnumParticleTypes.SPELL_WITCH, this.posX, this.posY, this.posZ, 0.0D, 2.0D, 0.0D, new int[0]);
        }
        for (int j = 0; j < 2; ++j)
        {
        this.worldObj.spawnParticle(EnumParticleTypes.BLOCK_CRACK, this.posX + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, this.posY + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, this.posZ + (worldObj.rand.nextFloat() - worldObj.rand.nextFloat()) / 2, ((double)this.rand.nextFloat() - 0.5D) * 0.08D, ((double)this.rand.nextFloat() - 0.5D) * 0.08D, ((double)this.rand.nextFloat() - 0.5D) * 0.08D, new int[] {Block.getIdFromBlock(Blocks.PORTAL)});
        }
        ++ticksExisted;
        if (this.ticksExisted >= 100)
        {
        	this.setDead();
        }
        if (!this.worldObj.isRemote)
        {
            this.doBlockCollisions();
        }
    }
}

What are you actually trying to do? If you are trying to make your entity pass through other entities, that is NOT the correct way to do it. doBlockCollisions() calls Block#onEntityCollidedWithBlock() on any block the entity is colliding with, it has nothing to do with entity-entity collisions.