Solved Cancelling arrow knockback

Howdy!
Is cancelling arrow knockback possible, or projectile knockback all together? I've had a theories of doing this, but mainly cancelling the EntityDamageByEntityEvent and setting the damage to 0. This didn't do anything.. :/

Any help will be appreciated. Thanks

 

kreashenz Maybe on EntityDamageByEntityEvent try teleporting the player to themself

 

Cancelling ProjectileHitEvent might work.

 

adam753 I can't check if the thing hit is a player. In fact, I can't check what it hit.

 

EntityDamageByEntity event might work, if you check it's an arrow, cancel the event and then damage the player using (something like) player.damage(event.getDamage(), event.getDamager()) ?

 

Chinwe I tried that, but because I needed to cancel all projectile knock backs, I've checked if the damaged is a projectile. I could supply code but I'm on my phone at the moment so I will in the morning.

 

Code:java

@EventHandler
public void onEntityDBEntity(EntityDamageByEntityEvent event) {
  if(event.getDamager() instanceof Projectile) {
    event.setCancelled(true);
    event.getEntity().damage(event.getDamage(), event.getDamager());
  }
}

Sorry if it isn't perfect, I'm too used to writing in a IDE

 

Ok, my code is

Code:java

    @EventHandler
    public void onEntityDamageByEntityEvent(EntityDamageByEntityEvent e){
            if(e.getDamager() instanceof Projectile){
                Projectile proj = (Projectile)e.getDamager();
                if(pm.hasKit() && pm.getKit().equals(Kit.ROCK)){
                    if(cooldown.contains(p.getName())){
                        e.setCancelled(true);
                        proj.setBounce(true);
                    }
                }
            }
        }
    }

That still doesn't work.

 

Try to use this:

Code:

Arrow arrow = ...;
 
try {
    Object handle = arrow.getClass()
            .getMethod("getHandle", new Class[] {})
            .invoke(arrow, new Object[] {});
 
    handle.getClass()
            .getMethod("a", int.class)
            .invoke(handle, 0);
} catch (Exception e) {
    e.printStackTrace();
}

 

Remember: cancelling the event and then damaging the player, won't reduce the damage if the player has armor.

 

Would this work for all projectiles?

And it also didn't work, I used it like

Code:java

    @EventHandler
    public void onEntityDamageByEntityEvent(EntityDamageByEntityEvent e){
        if(e.getEntity() instanceof Player){
            if(e.getDamager() instanceof Projectile){
                Projectile proj = (Projectile)e.getDamager();
                if(pm.hasKit() && pm.getKit().equals(Kit.ROCK)){
                    if(cooldown.contains(p.getName())){
                        e.setCancelled(true);
                        try {
                            Object handle = proj.getClass().getMethod("getHandle", new Class[] {}).invoke(proj, new Object[] {});
                            handle.getClass().getMethod("a", int.class).invoke(handle, 0);
                        } catch (Exception ex) {
                            ex.printStackTrace();
                        }
                    }
                }
            }
 
        }
    }

 

kreashenz
I think canceling and damaging the player should work

 

xTrollxDudex Well it doesn't.. I don't want to damage the player either. And what event are you talking about to cancel?

 

kreashenz He's talking about cancelling EntityDamageByEntityEvent (I'm pretty sure)

 

Loogeh Yeah, cancelling it doesn't work.

 

kreashenz It should work though. When you say it doesn't work what do you mean? Where does it get to in the code?

 

Loogeh It doesn't stop the knockback, though it stops the damage. Look at my above code..

 

kreashenz By knockback do you mean the enchantment or just the normal knockback that an arrow has?

 

Loogeh normal knockback the arrow has.

 

I just tested this code and it works perfectly, still damaging the player but removing all knockback:

Code:java

@EventHandler (priority = EventPriority.NORMAL)
public void onEntityDamageByEntity (EntityDamageByEntityEvent event) {
    if (event.getEntity() instanceof Player && event.getDamager() instanceof Projectile) {
        Player player = (Player) event.getEntity();
        player.damage(event.getDamage(), event.getDamager());
        event.setCancelled(true);
    }
}

If this code doesn't work for you something else is not working. You could add some debug messages into your event to see if your plugin is correctly listening to the event.

 

....... And there was my problem. Again, a stupid mistake by me. The player wasn't getting added to the cooldown list because I hadn't create the ability for the kit. Argh..
Sorry for wasting everyone's time