Spectral/Potion arrows/Channeling tridents apply effect to Endermen

@unknown bugs with more info or higher quality are chosen, not bugs reported first.

okay, thx for telling me

Can confirm for 15w33b

Affects also 15w36d

Confirmed for 15w40b

Confirmed for 15w41b

Confirmed for 15w42a

Confirmed for 15w43a

Confirmed for 15w44a

Confirmed for 15w46a

Confirmed for 15w47c

Confirmed that the Shulker bullet will let Enderman floating.

Can confirm for 15w49a

Confirmed for 15w51b by MC-94686.

Shulker bullet / Blaze(Dispenser) fire charge also apply effect / fire to Endermen.

Confirmed for 16w02a.

Confirmed for 16w06a, also the arrow doesn't disappear.

Confirmed for 1.9.1-pre3.

Confirmed for 1.9.3-pre3.

Confirmed for 1.9.4.

Confirmed for 16w21a.

Confirmed for 16w21b.

Confirmed for 1.10-pre1.

Confirmed for 1.10-pre2.

Confirmed for 1.10.

Confirmed for 1.10.1.

Based on net.minecraft.entity.monster.EntityEnderman.attackEntityFrom(), endermans actually can get hit by arrows, they just instantly teleport away as soon as they receive damage from an indirect damage source (such as an projectile). Therefore, the method net.minecraft.entity.projectile.EntityArrow.arrowHit() is called even though it seems like the arrow didn't hit the enderman.

A simple fix would be to check if the entity hit by the arrow (both tipped & spectral arrow) is an enderman before applying potion effects to the hit entity in the aforementioned method.

Suggested Fix: net.minecraft.entity.projectile.EntitySpectralArrow.arrowHit()

protected void arrowHit(EntityLivingBase living)
{
	super.arrowHit(living);
	if(!(living instanceof EntityEnderman))
	{
		PotionEffect potioneffect = new PotionEffect(MobEffects.GLOWING, this.duration, 0);
		living.addPotionEffect(potioneffect);
	}
}

Suggested Fix: net.minecraft.entity.projectile.EntityTippedArrow.arrowHit()

protected void arrowHit(EntityLivingBase living)
{
	super.arrowHit(living);
	
	if(!(living instanceof EntityEnderman)) {
		for (PotionEffect potioneffect : this.potion.getEffects())
		{
			living.addPotionEffect(new PotionEffect(potioneffect.getPotion(), Math.max(potioneffect.getDuration() / 8, 1), potioneffect.getAmplifier(), potioneffect.getIsAmbient(), potioneffect.doesShowParticles()));
		}

		if (!this.customPotionEffects.isEmpty())
		{
			for (PotionEffect potioneffect1 : this.customPotionEffects)
			{
				living.addPotionEffect(potioneffect1);
			}
		}
	}
}

All of this is based on MCP 9.40pre-1 using MC 1.12. Also, can confirm for 1.12.1 here.

I think the trident does the same way. I tried to throw a trident with Channeling enchantment to an Enderman, the trident bounced off to the ground, the Enderman teleported away, and the Lightning bolt hits the teleported Enderman.

Confirmed for 18w19a

Confirmed for 18w22c

Still in 1.13-pre1

I noticed a little side effect when a tipped arrow using the CustomPotionEffects tag hits an enderman. The Duration tag is set to 0 after the enderman teleports (i think).