How to modify vanilla block properties using ObfuscationReflectionHelper (1.18.x)

[Stoutscientist]

I would like to edit say the hardness of stone using ObfuscationReflectionHelper, what's the best way to go about this?

Edited September 13, 2022 by Stoutscientist
edit

[ChampionAsh5357]

How are you defining hardness? Are you referring to how long it takes to destroy the block? Or are you talking about the explosion resistance of the block? I would avoid performing vanilla manipulation except through the Forge API and to suggest and PR new API instead of using reflection.

[Stoutscientist]

51 minutes ago, ChampionAsh5357 said:

How are you defining hardness? Are you referring to how long it takes to destroy the block? Or are you talking about the explosion resistance of the block? I would avoid performing vanilla manipulation except through the Forge API and to suggest and PR new API instead of using reflection.

I mean how fast the block breaks, and what does PR mean? Thanks!

[warjort]

Just use an access transformer to make the destroySpeed a public non-final field in BlockStateBase.

https://forge.gemwire.uk/wiki/Access_Transformers

NOTE: There a separate explosionResistance in BlockBehaviour

 

PR is a pull request: https://docs.minecraftforge.net/en/latest/forgedev/#making-changes-and-pull-requests

[ChampionAsh5357]

8 hours ago, warjort said:

Just use an access transformer to make the destroySpeed a public non-final field in BlockStateBase.

There is no need for this. Use `PlayerEvent$BreakSpeed`. Reflection is not needed here.

[Stoutscientist]

2 hours ago, ChampionAsh5357 said:

There is no need for this. Use `PlayerEvent$BreakSpeed`. Reflection is not needed here.

like this?

 

@SubscribeEvent

public void onBlockStartBreak(PlayerEvent.BreakSpeed event){

    event.newSpeed = 5;

}

and will it also allow me to only do it for a specific block?

[ChampionAsh5357]

If that's how you register the event listener, yes. And you are given the BlockState which holds the block context of what the player is mining, so yes.

[Luis_ST]

23 hours ago, Stoutscientist said:

event.newSpeed = 5;

How are you be able to compile this?

You should use the public setter PlayerEvent$BreakSpeed#setNewSpeed.