Change the damage of projectile?

I would like to change the damage of a snowball when it hits.

 

entitydamagebyentityevent
if damager instanceof Snowball
set the damaged person's health -amount you want
profit

 

almost.
this is better:
inside the entitydamagebyentityevent

Code:

        if(event.getCause() == DamageCause.PROJECTILE){
            if(event.getDamager() instanceof Snowball){
                if(event.getEntity() instanceof Player){
                    event.setDamage(2); // one heart of damage
                }

 

how is this better?You added a line

 

It's better because he's using the event API to correctly report back to CraftBukkit how much damage should be done by this event. EntityLiving can then process the incoming damage just like any other damage event.

(Checking to see if the victim is a Player isn't necessarily required - you might want to allow snowballs to damage creatures too...)

 

just to check I understood:
its better to use Damage instead of the sethealth relative?

 

In general I would say yes. Let CraftBukkit process the damage normally, and deal with things like damage reduction by armour, etc. On the other hand, there may be times when you do need to modify the player's health directly - it's a design consideration, really.

 

Hmmm. Understood xD Thank you for the explanation

 

Hi sorry this is like over a year and a half old post and im replying, but would you know what do to, to remove health without armour affecting it? I am new to coding and im guessing you would start with p.getHealth(); and then removing a certain amount but im not sure.