[1.18.2] How to use blocks from other mods.

[TheElementGuy]

I have a mod with an Ice Sword, and I want it to be when you hit something, the surrounding dirt turns to permafrost, a block in Quark. How can I get that mod from the Quark mod? Any help is appreciated.

Edited August 3, 2022 by TheElementGuy
Add version.

[Luis_ST]

Should Quark be an optional or required dependency of your mod?

Edited August 3, 2022 by Luis_ST

[TheElementGuy]

Optional because before I want to set the block, I check if quark is loaded. It works without quark.

[TheElementGuy]

Otherwise there is just a mound of powdered snow.

[Luis_ST]

With ModList#isLoaded you can check if Quark is load.
Then you can use ForgeRegistries.BLOCKS#getValue with the id of the permafrost Block to get the Block. Then you can place the Block in the World (Level).
Note IForgeRegistry#getValue can be return null, it should not be null but it's recommended to handle this case (due Quarks Modul system).

Edited August 3, 2022 by Luis_ST

[Luis_ST]

Since you have a fallback Block you could also use RegistryObject#orElse, besides you don't need ModList#isLoaded in this case.

Edited August 3, 2022 by Luis_ST