Hi, I tried to add a use() method to my custom block, that should change a BlockState value; I tried to do it using BlockState.setValue(), however that didn't do anything. I thought this was due to setValue() only returning a changed BlockState, not changing it directly, so I tried sth. like state = state.setValue(); however that still didn't accomplish anything. I'm wondering, whether I'm doing sth. obvious wrong or do I need to use a different method?

Class in question: https://github.com/Kiwilis/simple-automation/blob/main/src/main/java/kiwilis/simpleautomation/common/block/CaoutchoucDrain.java

you need to call Level#setBlock to replace the Block in the World

Thank you!

What does the integer parameter of setBlock() do?

it's the place flage of the Block, you can look at Constants.BlockFlags for more infos about possible values and what they does