Snowball hitting a player

Hi all.
I am trying to create an event where when a player is hit with a snowball, they loose 5 hearts(or 10 health). I used to know these pretty basic things about 1 or 2 years ago but things are changing and I would like an updated version. Thank you for anybody that can help me solve my problem!

YZX

 

EntityDamageByEntity check if entity is instanceof Snowball set the damage amount.

 

Other than the health method changing from an int to a double, or double to a float or float to an int or whatever happend back a couple years ago and broke health-level methods in plugins (requiring a simple recasting change) nothing has changed since eons ago to snowballs or entities that would be different now from then.

 

Will try make one.

 

Ok, thank you for your reply but that isn't really my concern. Even if I did remember I would needed help.
Thanks

 

"but things are changing and I would like an updated version."

implied to me that you already had something

 

@xXKieXx

Have you tested that? If so, did it work? If it didn't work, why?

 

Actually yes I did test, and it works perfectly fine...Test it yourself

 

@OhhPickles I was asking @xXKieXx to look at your post because it seems like the good answer.

 

Ah...My apologies