[Feature] New /place-command to add nbt-structures to the world for editing.

src/main/java/org/betterx/bclib/api/v2/levelgen/structures/StructureNBT.java

@@ -24,6 +24,7 @@ import com.google.common.collect.Maps;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Map;
+import org.jetbrains.annotations.Nullable;
 
 public class StructureNBT {
     public final ResourceLocation location;
@@ -55,19 +56,9 @@ public class StructureNBT {
     }
 
     public boolean generateCentered(ServerLevelAccessor world, BlockPos pos, Rotation rotation, Mirror mirror) {
-        if (structure == null) {
-            BCLib.LOGGER.error("No structure: " + location.toString());
-            return false;
-        }
-
-        MutableBlockPos blockpos2 = new MutableBlockPos().set(structure.getSize());
-        if (mirror == Mirror.FRONT_BACK)
-            blockpos2.setX(-blockpos2.getX());
-        if (mirror == Mirror.LEFT_RIGHT)
-            blockpos2.setZ(-blockpos2.getZ());
-        blockpos2.set(blockpos2.rotate(rotation));
+        BlockPos newPos = getCenteredPos(pos, rotation, mirror);
+        if (newPos == null) return false;
         StructurePlaceSettings data = new StructurePlaceSettings().setRotation(rotation).setMirror(mirror);
-        BlockPos newPos = pos.offset(-blockpos2.getX() >> 1, 0, -blockpos2.getZ() >> 1);
         structure.placeInWorld(
                 world,
                 newPos,
@@ -79,6 +70,35 @@ public class StructureNBT {
         return true;
     }
 
+    public boolean generateAt(ServerLevelAccessor world, BlockPos pos, Rotation rotation, Mirror mirror) {
+        StructurePlaceSettings data = new StructurePlaceSettings().setRotation(rotation).setMirror(mirror);
+        structure.placeInWorld(
+                world,
+                pos,
+                pos,
+                data,
+                world.getRandom(),
+                Block.UPDATE_CLIENTS
+        );
+        return true;
+    }
+
+    @Nullable
+    private BlockPos getCenteredPos(BlockPos pos, Rotation rotation, Mirror mirror) {
+        if (structure == null) {
+            BCLib.LOGGER.error("No structure: " + location.toString());
+            return null;
+        }
+
+        MutableBlockPos blockpos2 = new MutableBlockPos().set(structure.getSize());
+        if (mirror == Mirror.FRONT_BACK)
+            blockpos2.setX(-blockpos2.getX());
+        if (mirror == Mirror.LEFT_RIGHT)
+            blockpos2.setZ(-blockpos2.getZ());
+        blockpos2.set(blockpos2.rotate(rotation));
+        return pos.offset(-blockpos2.getX() >> 1, 0, -blockpos2.getZ() >> 1);
+    }
+
     private static final Map<ResourceLocation, StructureTemplate> READER_CACHE = Maps.newHashMap();
 
     private static StructureTemplate readStructureFromJar(ResourceLocation resource) {
@@ -127,4 +147,11 @@ public class StructureNBT {
     public BoundingBox getBoundingBox(BlockPos pos, Rotation rotation, Mirror mirror) {
         return structure.getBoundingBox(new StructurePlaceSettings().setRotation(rotation).setMirror(mirror), pos);
     }
+
+    public BoundingBox getCenteredBoundingBox(BlockPos pos, Rotation rotation, Mirror mirror) {
+        return structure.getBoundingBox(
+                new StructurePlaceSettings().setRotation(rotation).setMirror(mirror),
+                getCenteredPos(pos, rotation, mirror)
+        );
+    }
 }

src/main/java/org/betterx/bclib/commands/CommandRegistry.java

@@ -5,6 +5,7 @@ import org.betterx.worlds.together.tag.v3.CommonBlockTags;
 
 import com.mojang.brigadier.Command;
 import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
 import net.minecraft.commands.CommandBuildContext;
@@ -37,30 +38,22 @@ public class CommandRegistry {
             CommandBuildContext commandBuildContext,
             Commands.CommandSelection commandSelection
     ) {
+        LiteralArgumentBuilder<CommandSourceStack> bnContext = Commands.literal("bclib")
+                                                                       .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS));
+
+        bnContext = Place.register(bnContext, commandBuildContext);
+        bnContext = PrintInfo.register(bnContext);
+        bnContext = DumpDatapack.register(bnContext);
+
         dispatcher.register(
-                Commands.literal("bclib")
-                        .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
+                bnContext
                         .then(Commands.literal("request_garbage_collection")
                                       .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
-                                      .executes(ctx -> requestGC(ctx))
-                        )
-                        .then(Commands.literal("dump_datapack")
-                                      .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
-                                      .executes(ctx -> DumpDatapack.dumpDatapack(ctx))
-                        )
-                        .then(Commands.literal("print")
-                                      .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
-                                      .then(Commands.literal("dimensions")
-                                                    .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
-                                                    .executes(ctx -> PrintInfo.printDimensions(ctx))
-                                      ).then(Commands.literal("updates")
-                                                     .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
-                                                     .executes(ctx -> PrintInfo.printUpdates(ctx, true))
-                                )
+                                      .executes(CommandRegistry::requestGC)
                         )
                         .then(Commands.literal("debug_ore")
                                       .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
-                                      .executes(ctx -> revealOre(ctx))
+                                      .executes(CommandRegistry::revealOre)
                         )
                         .then(Commands.literal("sliceZ")
                                       .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))

src/main/java/org/betterx/bclib/commands/DumpDatapack.java

@@ -9,11 +9,13 @@ import org.betterx.worlds.together.surfaceRules.AssignedSurfaceRule;
 import org.betterx.worlds.together.surfaceRules.SurfaceRuleRegistry;
 
 import com.mojang.brigadier.Command;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.serialization.Codec;
 import com.mojang.serialization.JsonOps;
 import com.mojang.serialization.codecs.KeyDispatchCodec;
 import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
 import net.minecraft.core.Holder;
 import net.minecraft.core.RegistryAccess;
 import net.minecraft.core.registries.Registries;
@@ -67,6 +69,14 @@ import java.util.Map;
 import java.util.function.Function;
 
 public class DumpDatapack {
+    public static LiteralArgumentBuilder<CommandSourceStack> register(LiteralArgumentBuilder<CommandSourceStack> bnContext) {
+        return bnContext
+                .then(Commands.literal("dump_datapack")
+                              .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
+                              .executes(DumpDatapack::dumpDatapack)
+                );
+    }
+
     private record Dumper<T, C extends Codec<? extends T>, H extends Holder<? extends T>>(
             Function<T, C> codecFunction,
             Function<Holder<T>, T> contentTransform

src/main/java/org/betterx/bclib/commands/Place.java

@@ -0,0 +1,466 @@
+package org.betterx.bclib.commands;
+
+import de.ambertation.wunderlib.math.Float3;
+import org.betterx.bclib.api.v2.levelgen.structures.StructureNBT;
+import org.betterx.bclib.util.BlocksHelper;
+
+import com.mojang.brigadier.Command;
+import com.mojang.brigadier.arguments.IntegerArgumentType;
+import com.mojang.brigadier.arguments.StringArgumentType;
+import com.mojang.brigadier.builder.ArgumentBuilder;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import net.minecraft.ChatFormatting;
+import net.minecraft.commands.CommandBuildContext;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
+import net.minecraft.commands.arguments.blocks.BlockInput;
+import net.minecraft.commands.arguments.blocks.BlockStateArgument;
+import net.minecraft.commands.arguments.coordinates.BlockPosArgument;
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.core.Vec3i;
+import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.Style;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.*;
+import net.minecraft.world.level.block.entity.CommandBlockEntity;
+import net.minecraft.world.level.block.entity.StructureBlockEntity;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.block.state.properties.AttachFace;
+import net.minecraft.world.level.block.state.properties.StructureMode;
+import net.minecraft.world.level.levelgen.structure.BoundingBox;
+
+import java.util.Map;
+import java.util.function.BiConsumer;
+import java.util.function.Function;
+import org.jetbrains.annotations.NotNull;
+
+class PlaceNBT {
+    protected <T extends ArgumentBuilder<CommandSourceStack, T>> T execute(
+            T builder,
+            BlockPos searchDir, boolean border, boolean commandBlock
+    ) {
+        return builder.executes(commandContext -> placeNBT(
+                commandContext.getSource(),
+                BlockPosArgument.getLoadedBlockPos(commandContext, "pos"),
+                StringArgumentType.getString(commandContext, "path"),
+                searchDir, border ? BlockStateArgument.getBlock(commandContext, "block") : null, commandBlock
+        ));
+    }
+
+    protected <T extends ArgumentBuilder<CommandSourceStack, T>> T buildPosArgument(
+            CommandBuildContext commandBuildContext,
+            T builder,
+            BlockPos searchDir
+    ) {
+        final var posBuilder = Commands.argument(
+                "pos",
+                BlockPosArgument.blockPos()
+        );
+
+        final var posOnly = addPosOnly(searchDir, posBuilder);
+        final var all = addPosWithAttributes(commandBuildContext, searchDir, posBuilder);
+
+        return builder.then(posOnly).then(all);
+    }
+
+    protected <P extends ArgumentBuilder<CommandSourceStack, P>> P addPosWithAttributes(
+            CommandBuildContext commandBuildContext,
+            BlockPos searchDir,
+            P posBuilder
+    ) {
+        return posBuilder
+                .then(execute(Commands.literal("structureblock"), searchDir, false, true))
+                .then(Commands.literal("border")
+                              .then(execute(
+                                              Commands.argument("block", BlockStateArgument.block(commandBuildContext)),
+                                              searchDir,
+                                              true,
+                                              false
+                                      ).then(execute(Commands.literal("structureblock"), searchDir, true, true))
+                              )
+                );
+    }
+
+    protected <P extends ArgumentBuilder<CommandSourceStack, P>> P addPosOnly(
+            BlockPos searchDir,
+            P posBuilder
+    ) {
+        return execute(posBuilder, searchDir, false, false);
+    }
+
+    public void register(
+            CommandBuildContext commandBuildContext,
+            Map<String, Float3> directions,
+            LiteralArgumentBuilder<CommandSourceStack> command
+    ) {
+
+        final LiteralArgumentBuilder<CommandSourceStack> nbtBuilder = Commands
+                .literal("nbt")
+                .then(Commands
+                        .argument("path", StringArgumentType.string())
+                        .then(buildPosArgument(commandBuildContext, Commands.literal("at"), null))
+                        .then(buildFindCommand(commandBuildContext, directions))
+                )
+//                .then(Commands.literal("test")
+//                              .then(Commands.argument("block", BlockStateArgument.block(commandBuildContext))
+//                                            .executes(commandContext -> placeNBT(
+//                                                    commandContext.getSource(),
+//                                                    new BlockPos(100, 10, 0),
+//                                                    "betternether:altar_01",
+//                                                    Float3.NORTH.toBlockPos(),
+//                                                    BlockStateArgument.getBlock(commandContext, "block"),
+//                                                    true
+//                                            )))
+//                )
+                ;
+
+
+        command.then(nbtBuilder);
+    }
+
+    @NotNull
+    protected LiteralArgumentBuilder<CommandSourceStack> buildFindCommand(
+            CommandBuildContext commandBuildContext,
+            Map<String, Float3> directions
+    ) {
+        final LiteralArgumentBuilder<CommandSourceStack> executeFindFree = Commands.literal("find");
+        for (var dir : directions.entrySet()) {
+            executeFindFree.then(buildPosArgument(
+                    commandBuildContext,
+                    Commands.literal(dir.getKey()),
+                    dir.getValue().toBlockPos()
+            ));
+        }
+        return executeFindFree;
+    }
+
+    static int placeNBT(
+            CommandSourceStack stack,
+            BlockPos pos,
+            String location,
+            BlockPos searchDir,
+            BlockInput blockInput,
+            boolean structureBlock
+    ) {
+        StructureNBT structureNBT = StructureNBT.create(new ResourceLocation(location));
+        return Place.placeBlocks(
+                stack,
+                pos,
+                searchDir,
+                blockInput,
+                structureBlock,
+                structureNBT.location,
+                (p) -> structureNBT.getBoundingBox(p, Rotation.NONE, Mirror.NONE),
+                (level, p) -> structureNBT.generateAt(level, p, Rotation.NONE, Mirror.NONE)
+        );
+    }
+}
+
+class PlaceEmpty extends PlaceNBT {
+    @Override
+    protected <T extends ArgumentBuilder<CommandSourceStack, T>> T execute(
+            T builder,
+            BlockPos searchDir, boolean border, boolean commandBlock
+    ) {
+        return builder.executes(commandContext -> placeEmpty(
+                commandContext.getSource(),
+                BlockPosArgument.getLoadedBlockPos(commandContext, "pos"),
+                new BlockPos(
+                        IntegerArgumentType.getInteger(commandContext, "spanX"),
+                        IntegerArgumentType.getInteger(commandContext, "spanY"),
+                        IntegerArgumentType.getInteger(commandContext, "spanZ")
+                ),
+                StringArgumentType.getString(commandContext, "path"),
+                searchDir, border ? BlockStateArgument.getBlock(commandContext, "block") : null, commandBlock
+        ));
+    }
+
+    @Override
+    protected <T extends ArgumentBuilder<CommandSourceStack, T>> T buildPosArgument(
+            CommandBuildContext commandBuildContext,
+            T builder,
+            BlockPos searchDir
+    ) {
+        final var spanX = Commands.argument(
+                "spanX",
+                IntegerArgumentType.integer(0, 64)
+        );
+        final var spanY = Commands.argument(
+                "spanY",
+                IntegerArgumentType.integer(0, 64)
+        );
+        final var spanZ = Commands.argument(
+                "spanZ",
+                IntegerArgumentType.integer(0, 64)
+        );
+        final var posBuilder = Commands.argument(
+                "pos",
+                BlockPosArgument.blockPos()
+        );
+
+        final var posOnly = addPosOnly(searchDir, spanZ);
+        final var all = addPosWithAttributes(commandBuildContext, searchDir, spanZ);
+
+        return builder.then(posBuilder.then(spanX.then(spanY.then(posOnly).then(all))));
+    }
+
+    @Override
+    public void register(
+            CommandBuildContext commandBuildContext,
+            Map<String, Float3> directions,
+            LiteralArgumentBuilder<CommandSourceStack> command
+    ) {
+
+        final LiteralArgumentBuilder<CommandSourceStack> nbtBuilder = Commands
+                .literal("empty")
+                .then(Commands
+                        .argument("path", StringArgumentType.string())
+                        .then(buildPosArgument(commandBuildContext, Commands.literal("at"), null))
+                        .then(buildFindCommand(commandBuildContext, directions))
+                );
+
+
+        command.then(nbtBuilder);
+    }
+
+    private static int placeEmpty(
+            CommandSourceStack stack,
+            BlockPos start,
+            BlockPos span,
+            String location,
+            BlockPos searchDir,
+            BlockInput blockInput,
+            boolean structureBlock
+    ) {
+        return Place.placeBlocks(
+                stack,
+                start,
+                searchDir,
+                blockInput,
+                structureBlock,
+                new ResourceLocation(location),
+                (p) -> BoundingBox.fromCorners(p, p.offset(span)),
+                (level, p) -> {
+                    var box = BoundingBox.fromCorners(p, p.offset(span));
+                    Place.fillStructureVoid(level, box);
+                    if (blockInput != null) {
+                        Place.fill(
+                                level,
+                                new BoundingBox(
+                                        box.minX(),
+                                        box.minY() - 1,
+                                        box.minZ(),
+                                        box.maxX(),
+                                        box.minY() - 1,
+                                        box.maxZ()
+                                ),
+                                blockInput.getState()
+                        );
+                    }
+                }
+        );
+    }
+}
+
+public class Place {
+    public Place() {
+    }
+
+    public static LiteralArgumentBuilder<CommandSourceStack> register(
+            LiteralArgumentBuilder<CommandSourceStack> bnContext,
+            CommandBuildContext commandBuildContext
+    ) {
+        final Map<String, Float3> directions = Map.of(
+                "northOf", Float3.NORTH,
+                "southOf", Float3.SOUTH,
+                "eastOf", Float3.EAST,
+                "westOf", Float3.WEST,
+                "above", Float3.UP,
+                "below", Float3.DOWN
+        );
+
+        final var command = Commands
+                .literal("place")
+                .requires(commandSourceStack -> commandSourceStack.hasPermission(2));
+
+        new PlaceNBT().register(commandBuildContext, directions, command);
+        new PlaceEmpty().register(commandBuildContext, directions, command);
+
+        return bnContext.then(command);
+    }
+
+
+    private static boolean isEmpty(Level level, BoundingBox bb) {
+        for (int x = bb.minX(); x <= bb.maxX(); x++)
+            for (int y = bb.minY(); y <= bb.maxY(); y++)
+                for (int z = bb.minZ(); z <= bb.maxZ(); z++)
+                    if (!level.isEmptyBlock(new BlockPos(x, y, z))) {
+                        return false;
+                    }
+
+        return true;
+    }
+
+    private static void replaceAir(Level level, BoundingBox bb) {
+        for (int x = bb.minX(); x <= bb.maxX(); x++)
+            for (int y = bb.minY(); y <= bb.maxY(); y++)
+                for (int z = bb.minZ(); z <= bb.maxZ(); z++) {
+                    BlockPos bp = new BlockPos(x, y, z);
+                    if (level.getBlockState(bp).is(Blocks.AIR)) {
+                        level.setBlock(bp, Blocks.STRUCTURE_VOID.defaultBlockState(), BlocksHelper.SET_OBSERV);
+                    }
+                }
+    }
+
+    static void fill(Level level, BoundingBox bb, BlockState blockState) {
+        for (int x = bb.minX(); x <= bb.maxX(); x++)
+            for (int y = bb.minY(); y <= bb.maxY(); y++)
+                for (int z = bb.minZ(); z <= bb.maxZ(); z++) {
+                    BlockPos bp = new BlockPos(x, y, z);
+                    level.setBlock(bp, blockState, BlocksHelper.SET_OBSERV);
+                }
+    }
+
+    static void fillStructureVoid(Level level, BoundingBox bb) {
+        fill(level, bb, Blocks.STRUCTURE_VOID.defaultBlockState());
+    }
+
+    //Draws a border around the bounding box
+    private static void outline(Level level, BoundingBox bb, BlockState outlineState) {
+        for (int x = bb.minX(); x <= bb.maxX(); x++) {
+            level.setBlock(new BlockPos(x, bb.minY(), bb.minZ()), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(x, bb.maxY(), bb.minZ()), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(x, bb.minY(), bb.maxZ()), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(x, bb.maxY(), bb.maxZ()), outlineState, BlocksHelper.SET_OBSERV);
+        }
+        for (int y = bb.minY(); y <= bb.maxY(); y++) {
+            level.setBlock(new BlockPos(bb.minX(), y, bb.minZ()), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(bb.maxX(), y, bb.minZ()), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(bb.minX(), y, bb.maxZ()), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(bb.maxX(), y, bb.maxZ()), outlineState, BlocksHelper.SET_OBSERV);
+        }
+        for (int z = bb.minZ(); z <= bb.maxZ(); z++) {
+            level.setBlock(new BlockPos(bb.minX(), bb.minY(), z), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(bb.maxX(), bb.minY(), z), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(bb.minX(), bb.maxY(), z), outlineState, BlocksHelper.SET_OBSERV);
+            level.setBlock(new BlockPos(bb.maxX(), bb.maxY(), z), outlineState, BlocksHelper.SET_OBSERV);
+        }
+    }
+
+    private static BoundingBox adapt(BoundingBox bb, boolean border, boolean structureBlock) {
+        if (border) {
+            return bb.inflatedBy(1);
+        } else if (structureBlock) {
+            return new BoundingBox(
+                    bb.minX() - 1,
+                    bb.minY() - 1,
+                    bb.minZ() - 1,
+                    bb.maxX(),
+                    bb.maxY(),
+                    bb.maxZ()
+            );
+        }
+        return bb;
+    }
+
+    private static void createControlBlocks(CommandSourceStack stack, ResourceLocation location, BoundingBox bbNBT) {
+        BlockPos structureBlockPos = new BlockPos(bbNBT.minX() - 1, bbNBT.minY() - 1, bbNBT.minZ() - 1);
+        BlockPos commandBlockPos = new BlockPos(bbNBT.minX() - 1, bbNBT.minY() - 1, bbNBT.minZ());
+        BlockPos buttonBlockPos = new BlockPos(bbNBT.minX() - 1, bbNBT.minY(), bbNBT.minZ());
+        BlockState state = Blocks.STRUCTURE_BLOCK
+                .defaultBlockState()
+                .setValue(StructureBlock.MODE, StructureMode.SAVE);
+
+        stack.getLevel().setBlock(structureBlockPos, state, BlocksHelper.SET_OBSERV);
+        if (stack.getLevel().getBlockEntity(structureBlockPos) instanceof StructureBlockEntity entity) {
+            entity.setIgnoreEntities(false);
+            entity.setShowAir(true);
+            entity.setMirror(Mirror.NONE);
+            entity.setRotation(Rotation.NONE);
+            entity.setShowBoundingBox(true);
+            entity.setStructureName(location);
+            entity.setStructurePos(new BlockPos(1, 1, 1));
+            entity.setStructureSize(new Vec3i(bbNBT.getXSpan(), bbNBT.getYSpan(), bbNBT.getZSpan()));
+        }
+
+        state = Blocks.COMMAND_BLOCK.defaultBlockState().setValue(CommandBlock.FACING, Direction.DOWN);
+        stack.getLevel().setBlock(commandBlockPos, state, BlocksHelper.SET_OBSERV);
+        if (stack.getLevel().getBlockEntity(commandBlockPos) instanceof CommandBlockEntity entity) {
+            entity.setAutomatic(false);
+            entity.setPowered(false);
+            entity.onlyOpCanSetNbt();
+            entity.getCommandBlock().shouldInformAdmins();
+            entity.getCommandBlock()
+                  .setCommand(
+                          "fill ~1 ~1 ~"
+                                  + " ~" + bbNBT.getXSpan() + " ~" + bbNBT.getYSpan() + " ~" + bbNBT.getZSpan()
+                                  + " " + BuiltInRegistries.BLOCK.getKey(Blocks.STRUCTURE_VOID)
+                                  + " replace " + BuiltInRegistries.BLOCK.getKey(Blocks.AIR)
+                  );
+        }
+
+        state = Blocks.OAK_BUTTON.defaultBlockState()
+                                 .setValue(ButtonBlock.FACING, Direction.EAST)
+                                 .setValue(ButtonBlock.FACE, AttachFace.FLOOR);
+        stack.getLevel().setBlock(buttonBlockPos, state, BlocksHelper.SET_OBSERV);
+    }
+
+
+    static int placeBlocks(
+            CommandSourceStack stack,
+            BlockPos pos,
+            BlockPos searchDir,
+            BlockInput blockInput,
+            boolean structureBlock,
+            ResourceLocation location,
+            Function<BlockPos, BoundingBox> getBounds,
+            BiConsumer<ServerLevel, BlockPos> generate
+    ) {
+        if (searchDir != null) {
+            int tries = 16 * 16;
+            while (tries > 0 && !isEmpty(
+                    stack.getLevel(),
+                    adapt(
+                            getBounds.apply(pos),
+                            blockInput != null,
+                            structureBlock
+                    )
+            )) {
+
+                pos = pos.offset(searchDir);
+                tries--;
+            }
+
+            if (tries <= 0) {
+                stack.sendFailure(Component.literal("Failed to find free space")
+                                           .setStyle(Style.EMPTY.withColor(ChatFormatting.RED)));
+                return -1;
+            }
+        }
+
+        final BoundingBox bbNBT = getBounds.apply(pos);
+        if (blockInput != null) {
+            final BoundingBox bb = bbNBT.inflatedBy(1);
+            outline(stack.getLevel(), bb, blockInput.getState());
+            stack.sendSuccess(() -> Component.literal("Placed border: " + bb.toString())
+                                             .setStyle(Style.EMPTY.withColor(ChatFormatting.GREEN)), true);
+        }
+
+        generate.accept(stack.getLevel(), pos);
+        replaceAir(stack.getLevel(), bbNBT);
+
+        stack.sendSuccess(() -> Component.literal("Placed NBT: " + bbNBT.toString())
+                                         .setStyle(Style.EMPTY.withColor(ChatFormatting.GREEN)), true);
+
+        if (structureBlock) {
+            createControlBlocks(stack, location, bbNBT);
+        }
+        return Command.SINGLE_SUCCESS;
+    }
+
+
+}

src/main/java/org/betterx/bclib/commands/PrintInfo.java

@@ -7,10 +7,12 @@ import org.betterx.bclib.networking.VersionChecker;
 
 import com.mojang.blaze3d.systems.RenderSystem;
 import com.mojang.brigadier.Command;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.context.CommandContext;
 import net.minecraft.ChatFormatting;
 import net.minecraft.client.Minecraft;
 import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
 import net.minecraft.network.chat.ClickEvent;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.chat.MutableComponent;
@@ -21,6 +23,20 @@ import net.fabricmc.loader.api.FabricLoader;
 import net.fabricmc.loader.api.ModContainer;
 
 public class PrintInfo {
+    public static LiteralArgumentBuilder<CommandSourceStack> register(LiteralArgumentBuilder<CommandSourceStack> bnContext) {
+        return bnContext
+                .then(Commands.literal("print")
+                              .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
+                              .then(Commands.literal("dimensions")
+                                            .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
+                                            .executes(PrintInfo::printDimensions)
+                              ).then(Commands.literal("updates")
+                                             .requires(source -> source.hasPermission(Commands.LEVEL_OWNERS))
+                                             .executes(ctx -> PrintInfo.printUpdates(ctx, true))
+                        )
+                );
+    }
+
     static int printDimensions(CommandContext<CommandSourceStack> ctx) {
         MutableComponent result = Component.literal("World Dimensions: ")
                                            .setStyle(Style.EMPTY.withBold(true).withColor(ChatFormatting.BLUE));