Minecraft: V1.19.1

// CityStructure.java package com.example.minecraft.feature;

// Add roof level.setBlock(new BlockPosition(pos.getX() + buildingSize / 2, pos.getY() + 1, pos.getZ() + buildingSize / 2), Blocks.STONE_SLAB.defaultBlockState(), 2); } } To register the feature, you can use the following code:

// Generate roads and decorations generateRoads(); generateDecorations(); } Minecraft v1.19.1

import java.util.Random;

public void generate() { // Generate building Random random = new Random(); int buildingSize = random.nextInt(5) + 5; for (int i = 0; i < buildingSize; i++) { for (int j = 0; j < buildingSize; j++) { level.setBlock(new BlockPosition(pos.getX() + i, pos.getY(), pos.getZ() + j), Blocks.STONE_BRICK.defaultBlockState(), 2); } } // CityStructure

// CityFeatureRegistration.java package com.example.minecraft.feature;

public District(Level level, BlockPosition pos, int index) { this.level = level; this.pos = pos; this.index = index; } // CityStructure.java package com.example.minecraft.feature

public class CityFeatureRegistration { public static final Holder<ConfiguredFeature<?, ?>> CITY_FEATURE = Feature.STRUCTURE.sidedBuilder(StructureFeatureConfiguration.CODEC) .parameter(StructureTemplateManager.PARAMETER_CODEC.fieldOf("structure")) .orElseThrow() .configure(StructureFeatureConfiguration::new) .buildHolder(CityFeature::generateCityFeature);