Forge 1.17.1
Hello. I want to do something like scare mobs potion effect. It basically would make mobs ignore the player, just like on gamemode creative. I discovered that when I give player disableDamage ability (player.abilities.disableDamage), mobs start to ignore the player. But I don't want to make player invulnerable (I'll use tags).
Then I found this method in MobEntity class:

public boolean canAttack(LivingEntity target) {
      return target.getType() == EntityType.PLAYER && ((PlayerEntity)target).abilities.disableDamage ? false : super.canAttack(target);
   }

I just need to somehow override/change/...? it to something like

return target.getType() == EntityType.PLAYER && ((PlayerEntity)target).getTags().contains("scare_mobs") ? false && ((PlayerEntity)target).abilities.disableDamage ? false : super.canAttack(target);)

but I don't really know how. What is the best way to do this, without breaking the game?

Edited August 26, 20214 yr by KopoL

1.15 is no longer supported on this forum.
Please update to a modern version of Minecraft to receive support.

I am using 1.17.1 now.

are you sure you updated to 1.17?
post updated code

Everything is still the same, only mappings changed.

only possible via coremodding
ask on the forge discord server in the non-api-modding chanel
there are the experts about coremodding

Okay, thank you. But do you think of any other way to prevent them from attacking the player without making him invulnerable - without using abilities? Because using core modding is my final solution, If I had any other option I'd prefer to use it.

28 minutes ago, Luis_ST said:

only possible via coremodding

there is no Hook or Event where you can use

Ok, thank you anyway. I'll try with coremodding.

You can possibly replace their target goals.