How to make a player to launch projectiles invisibility?

how hide projectiles at launch? (Sorry for english, im brazillian)

I tried this:

Code:

Vector Ferro = p.getLocation().getDirection().normalize().multiply(55);
Arrow FerroH = ((Arrow)p.launchProjectile(Arrow.class));
((LivingEntity)FerroH).addPotionEffect(new PotionEffect(PotionEffectType.INVISIVILITY, 65, 0));
FerroH.setVelocity(Ferro);

but did not work

 

I'm not sure, and I can't test it right now, but projectile is a kind of entity so maybe you could give it invisiblity potion effect when you catch the projectile launch event.

 

If you increase the velocity of it to a super speed you can barely see it.

 

But then it will go somewhere else. Isn't it?

 

Only works on LivingEntity.

Eh.. no.

Send a PacketPlayOutEntityDestroy(int... entityID) with my reflection util: http://bukkit.org/threads/361069
Just use:

Code:

Object packet = Reflections.getPacket("PacketPlayOutEntityDestroy", yourProjectile.getEntityId());
Reflcetions.sendPacket(player, packet);

 

This never will work?

Code:

((LivingEntity)FerroH).addPotionEffect(new PotionEffect(PotionEffectType.INVISIVILITY, 65, 0));

 

Yes, this will never work. Arrow isn't a LivingEntity, it is a projectile.

 

Is there any way to set the invisibility effect to arrow?

 

No
As I said already 3 (!!!) times you must send a packet to the player