support for building selected litematic

src/api/java/baritone/api/process/IBuilderProcess.java

@@ -58,6 +58,8 @@ public interface IBuilderProcess extends IBaritoneProcess {
 
     void buildOpenSchematic();
 
+    void buildOpenLitematic();
+
     void buildOpenLitematic(int i);
 
     void pause();

src/main/java/baritone/command/defaults/LitematicaCommand.java

@@ -40,11 +40,13 @@ public class LitematicaCommand extends Command {
             if (args.is(Integer.class)) {
                 schematic = args.getAs(Integer.class) - 1;
             }
-        }
-        try {
-            baritone.getBuilderProcess().buildOpenLitematic(schematic);
-        } catch (IndexOutOfBoundsException e) {
-            logDirect("Pleas provide a valid index.");
+            try {
+                baritone.getBuilderProcess().buildOpenLitematic(schematic);
+            } catch (IndexOutOfBoundsException e) {
+                logDirect("Pleas provide a valid index.");
+            }
+        } else {
+            baritone.getBuilderProcess().buildOpenLitematic();
         }
     }
 

src/main/java/baritone/process/BuilderProcess.java

@@ -215,6 +215,20 @@ public final class BuilderProcess extends BaritoneProcessHelper implements IBuil
         }
     }
 
+    @Override
+    public void buildOpenLitematic() {
+        if (LitematicaHelper.isLitematicaPresent()) {
+            Integer selectedIndex = LitematicaHelper.getSelectedIndex();
+            if (selectedIndex != -1) {
+                buildOpenLitematic(selectedIndex);
+            } else {
+                logDirect("No schematic currently selected");
+            }
+        } else {
+            logDirect("Litematica is not present");
+        }
+    }
+
     @Override
     public void buildOpenLitematic(int i) {
         if (LitematicaHelper.isLitematicaPresent()) {
@@ -532,7 +546,7 @@ public final class BuilderProcess extends BaritoneProcessHelper implements IBuil
         }
 
         Optional<Tuple<BetterBlockPos, Rotation>> toBreak = toBreakNearPlayer(bcc);
-        if (toBreak.isPresent() && isSafeToCancel && ctx.player().isOnGround()) {
+        if (toBreak.isPresent() && isSafeToCancel && ctx.player().onGround()) {
             // we'd like to pause to break this block
             // only change look direction if it's safe (don't want to fuck up an in progress parkour for example
             Rotation rot = toBreak.get().getB();
@@ -552,7 +566,7 @@ public final class BuilderProcess extends BaritoneProcessHelper implements IBuil
         }
         List<BlockState> desirableOnHotbar = new ArrayList<>();
         Optional<Placement> toPlace = searchForPlacables(bcc, desirableOnHotbar);
-        if (toPlace.isPresent() && isSafeToCancel && ctx.player().isOnGround() && ticks <= 0) {
+        if (toPlace.isPresent() && isSafeToCancel && ctx.player().onGround() && ticks <= 0) {
             Rotation rot = toPlace.get().rot;
             baritone.getLookBehavior().updateTarget(rot, true);
             ctx.player().getInventory().selected = toPlace.get().hotbarSelection;
@@ -1063,9 +1077,6 @@ public final class BuilderProcess extends BaritoneProcessHelper implements IBuil
         if (desired.getBlock() instanceof AirBlock && Baritone.settings().buildIgnoreBlocks.value.contains(current.getBlock())) {
             return true;
         }
-        if (!(current.getBlock() instanceof AirBlock) && Baritone.settings().buildIgnoreExisting.value && !itemVerify) {
-            return true;
-        }
         if (Baritone.settings().buildSkipBlocks.value.contains(desired.getBlock()) && !itemVerify) {
             return true;
         }

src/main/java/baritone/utils/schematic/litematica/LitematicaHelper.java

@@ -54,6 +54,17 @@ public final class LitematicaHelper {
         return DataManager.getSchematicPlacementManager().getAllSchematicsPlacements().size() > 0;
     }
 
+    /**
+     * @return the index of the currently selected schematic. -1 if none selected.
+     */
+    public static Integer getSelectedIndex() {
+        try {
+            return DataManager.getSchematicPlacementManager().getAllSchematicsPlacements().indexOf(DataManager.getSchematicPlacementManager().getSelectedSchematicPlacement());
+        } catch (NullPointerException e) {
+            return -1;
+        }
+    }
+
     /**
      * @param i index of the Schematic in the schematic placement list.
      * @return the name of the requested schematic.

src/schematica_api/java/fi/dy/masa/litematica/schematic/placement/SchematicPlacementManager.java

@@ -19,13 +19,21 @@ package fi.dy.masa.litematica.schematic.placement;
 
 import java.util.ArrayList;
 import java.util.List;
+import javax.annotation.Nullable;
 
 public class SchematicPlacementManager {
     private final List<SchematicPlacement> schematicPlacements = new ArrayList<>();
 
+    @Nullable
+    private SchematicPlacement selectedPlacement;
+
     //in case of a java.lang.NoSuchMethodError try change the name of this method to getAllSchematicPlacements()
     //there are inconsistencies in the litematica mod about the naming of this method
     public List<SchematicPlacement> getAllSchematicsPlacements() {
         return schematicPlacements;
     }
+
+    public SchematicPlacement getSelectedSchematicPlacement() {
+        return selectedPlacement;
+    }
 }