So for a while I have been trying to get this damage-source to work and I figured out it was the world being remote that caused the problem.

 

I fixed that and now my new problem is the items are not being picked up and there is no sound coming from the entity when hurt or dead.

 

 

if (e.worldObj.isRemote)
{
    e.worldObj.isRemote = false;
    e.attackEntityFrom(DamageSource.cactus, pain);
    e.worldObj.isRemote = true;
}
else
{
    e.attackEntityFrom(DamageSource.cactus, pain);
}

 

 

If anyone knows anything, help would be highly appreciated! Thanks:)

Does anyone have any ideas?