I have some custom mobs and custom weapons with custom damage sources 

 

It's straight forward to have my own entities reacted to those custom damage sources because I can put whatever I please into attackEntityFrom().  Is there a straight forward way to do that for vanilla entities?

 

Thanks!

Thanks for the response.  I did look at LivingAttackEvent but didn't see a straight forward way to persist anything, like a state of frozen  What I'm doing on my custom entities is within attackEntityFrom() I check the damagesource to see if it's an iceblast then set the entity's state to frozen.  During the onUpdate() for that entity, if it's frozen, it does nothing.

 

I looked at using LivingAttackEvent, tracking a collection of entities that were hit with an iceblast and referencing them in a LivingUpdateEvent handler to freeze them, but it felt like overkill.  Often when my solutions go out of the way, I'm approaching it wrong. 

And then... sometimes you do have to go out of your way.  Thanks!

Do you want them to look frozen or such?

 

You could remove the entity, replace it with a icicle version of the entity, have that entity respawn the original when it times out.  That would be a cool effect.

 

Other than that, you would have to track all the entities, spam zero motion and set position to origin position, set agrotarget to null, and cancel every entityagro event at a minimum.

 

I think replacing the entiry temporarily would be a more robust solution and easier to troubleshoot long term, but that is just me.