Improved jigsaw command

src/main/java/org/betterx/bclib/commands/arguments/BCLibArguments.java

@@ -19,5 +19,11 @@ public class BCLibArguments {
                 Float3ArgumentType.class,
                 new Float3ArgumentInfo()
         );
+
+        ArgumentTypeRegistry.registerArgumentType(
+                BCLib.makeID("connector"),
+                ConnectorArgument.class,
+                SingletonArgumentInfo.contextFree(ConnectorArgument::id)
+        );
     }
 }

src/main/java/org/betterx/bclib/commands/arguments/ConnectorArgument.java

@@ -0,0 +1,49 @@
+package org.betterx.bclib.commands.arguments;
+
+import org.betterx.bclib.commands.PlaceCommand;
+
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.suggestion.Suggestions;
+import com.mojang.brigadier.suggestion.SuggestionsBuilder;
+import net.minecraft.commands.SharedSuggestionProvider;
+import net.minecraft.commands.arguments.ResourceLocationArgument;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import org.jetbrains.annotations.NotNull;
+
+public class ConnectorArgument extends ResourceLocationArgument {
+    private static final Collection<String> EXAMPLES = Arrays.asList("-:entrance", "-:decoration", "-:street");
+
+    @Override
+    public Collection<String> getExamples() {
+        return EXAMPLES;
+    }
+
+    @Override
+    public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> context, SuggestionsBuilder builder) {
+        ResourceLocation pool = null;
+        try {
+            pool = context.getArgument(PlaceCommand.POOL, ResourceKey.class).location();
+        } catch (Throwable t) {
+            pool = new ResourceLocation("-", "");
+        }
+        return SharedSuggestionProvider.suggest(getStrings(
+                pool.getNamespace(),
+                List.of("bottom", "building_entrance", "street")
+        ), builder);
+    }
+
+    @NotNull
+    private List<String> getStrings(String namespace, List<String> input) {
+        return input.stream().map(s -> namespace + ":" + s).toList();
+    }
+
+    public static ConnectorArgument id() {
+        return new ConnectorArgument();
+    }
+}

src/main/java/org/betterx/bclib/commands/arguments/PlacementDirections.java

@@ -1,5 +1,6 @@
 package org.betterx.bclib.commands.arguments;
 
+import de.ambertation.wunderlib.math.Bounds;
 import de.ambertation.wunderlib.math.Float3;
 
 import com.mojang.serialization.Codec;
@@ -7,28 +8,65 @@ import net.minecraft.core.BlockPos;
 import net.minecraft.util.StringRepresentable;
 
 public enum PlacementDirections implements StringRepresentable {
-    NORTH_OF("northOf", Float3.NORTH),
+    NORTH_OF("northOf", Float3.NORTH, PlacementDirections::resetStartNorthSouth),
-    EAST_OF("eastOf", Float3.EAST),
+    EAST_OF("eastOf", Float3.EAST, PlacementDirections::resetStartEastWest),
-    SOUTH_OF("southOf", Float3.SOUTH),
+    SOUTH_OF("southOf", Float3.SOUTH, PlacementDirections::resetStartNorthSouth),
-    WEST_OF("westOf", Float3.WEST),
+    WEST_OF("westOf", Float3.WEST, PlacementDirections::resetStartEastWest),
-    ABOVE("above", Float3.UP),
+    ABOVE("above", Float3.UP, PlacementDirections::resetStartEastWest),
-    BELOW("below", Float3.DOWN),
+    BELOW("below", Float3.DOWN, PlacementDirections::resetStartEastWest),
-    AT("at", null);
+    AT("at", null, null);
 
     public static final Codec<PlacementDirections> CODEC = StringRepresentable.fromEnum(PlacementDirections::values);
 
+    interface ResetStart {
+        Float3 calculate(Bounds totalBounds, BlockPos lastStart, int offset);
+    }
+
+    private static Float3 resetStartNorthSouth(Bounds totalBounds, BlockPos lastStart, int offset) {
+        return Float3.of(totalBounds.max.x + offset, lastStart.getY(), lastStart.getZ());
+    }
+
+    private static Float3 resetStartEastWest(Bounds totalBounds, BlockPos lastStart, int offset) {
+        return Float3.of(lastStart.getX(), lastStart.getY(), totalBounds.max.z + offset);
+    }
+
     private final String name;
     public final Float3 dir;
+    private final ResetStart resetStart;
 
-    PlacementDirections(String name, Float3 dir) {
+    PlacementDirections(String name, Float3 dir, ResetStart resetStart) {
         this.name = name;
         this.dir = dir;
+        this.resetStart = resetStart;
     }
 
     public BlockPos getOffset() {
         return dir == null || dir == Float3.ZERO ? null : dir.toBlockPos();
     }
 
+    public int sizeInDirection(Bounds totalBounds) {
+        return (int) totalBounds.getSize().mul(dir).length();
+    }
+
+    public BlockPos advanceStart(Bounds placedBound, BlockPos lastStart) {
+        return advanceStart(placedBound, lastStart, 1);
+    }
+
+    public BlockPos advanceStart(Bounds placedBound, BlockPos lastStart, int offset) {
+        return lastStart.offset(dir.mul(sizeInDirection(placedBound) + offset).toBlockPos());
+    }
+
+    public BlockPos resetStart(Bounds totalBounds, BlockPos lastStart) {
+        return resetStart(totalBounds, lastStart, 3);
+    }
+
+    public BlockPos resetStart(Bounds totalBounds, BlockPos lastStart, int offset) {
+        if (resetStart == null) {
+            return lastStart;
+        }
+        return this.resetStart.calculate(totalBounds, lastStart, offset).toBlockPos();
+    }
+
     @Override
     public String getSerializedName() {
         return name;