package net.minecraft.util.datafix.schemas; import com.mojang.datafixers.DSL; import com.mojang.datafixers.schemas.Schema; import com.mojang.datafixers.types.templates.TypeTemplate; import java.util.Map; import java.util.function.Function; import java.util.function.Supplier; import net.minecraft.util.datafix.fixes.References; public class V1451_2 extends NamespacedSchema { public V1451_2(int i, Schema schema) { super(i, schema); } @Override public Map> registerBlockEntities(Schema schema) { Map> map = super.registerBlockEntities(schema); schema.register(map, "minecraft:piston", (Function)(string -> DSL.optionalFields("blockState", References.BLOCK_STATE.in(schema)))); return map; } }