[1.19.4] How can I reduce knockback on entity hurt

[Feroov]

So I've created an entity that shoots projectiles, and everything works as intended, the problem is since my entity shoots really fast (Machinegun) obviously whoever is getting hit by the projectiles will constantly get knockback. Is there a way to decrease or completely remove knockback when the projectile entity hits another entity? Thank you in advance 😁

[warjort]

There is a LivingKnockBackEvent where you can adjust the knockback strength and direction.

But it doesn't tell you the DamageSource so you wouldn't be able to check it is your projectile.

 

There is a LivingEntity.getLastDamageSource(), but if you look at the code for LivingEntity.hurt() it doesn't set that value until after the knockback() is calculated.

Maybe you could still use it but only to stop knockback if the previous damage was from your projectile? i.e. the knockback would still occur for the first one.

If you look at getLastDamageSource(), it removes that value after a certain amount of time though.

 

An alternative would be to suggest a patch to Forge where that event makes the DamageSource available.

[sFXprt]

On 4/27/2023 at 10:06 PM, Feroov said:

So I've created an entity that shoots projectiles, and everything works as intended, the problem is since my entity shoots really fast (Machinegun) obviously whoever is getting hit by the projectiles will constantly get knockback. Is there a way to decrease or completely remove knockback when the projectile entity hits another entity? Thank you in advance 😁

One thing you could do is set a persistent data tag and check in LivingKnockbackEvent if that entity has that tag if so do whatever and remove that tag