package net.minecraft.server; 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.Supplier; public class DataConverterSchemaV1451_2 extends DataConverterSchemaNamed { public DataConverterSchemaV1451_2(int i, Schema schema) { super(i, schema); } public Map<String, Supplier<TypeTemplate>> registerBlockEntities(Schema schema) { Map<String, Supplier<TypeTemplate>> map = super.registerBlockEntities(schema); schema.register(map, "minecraft:piston", (s) -> { return DSL.optionalFields("blockState", DataConverterTypes.BLOCK_STATE.in(schema)); }); return map; } }