Various

Fixes #456
Delay command registration
WIP shatter/stencil brush
Minor FaweQueue optimization

core/src/main/java/com/boydti/fawe/config/BBC.java

@@ -121,6 +121,8 @@ public enum BBC {
     BRUSH_HEIGHT_INVALID("Invalid height map file (%s0)", "WorldEdit.Brush"),
     BRUSH_SMOOTH("Smooth brush equipped (%s0 x %s1 using %s2. Note: Use the blend brush if you want to smooth overhangs or caves.).", "WorldEdit.Brush"),
     BRUSH_SPHERE("Sphere brush shape equipped (%s0).", "WorldEdit.Brush"),
+    BRUSH_SHATTER("Shatter brush shape equipped (%s0, %s1).", "WorldEdit.Brush"),
+    BRUSH_STENCIL("Stencil brush equipped (%s0).", "WorldEdit.Brush"),
     BRUSH_LINE("Line brush shape equipped (%s0).", "WorldEdit.Brush"),
     BRUSH_SPLINE("Spline brush shape equipped (%s0). Right click an end to add a shape", "WorldEdit.Brush"),
     BRUSH_SPLINE_PRIMARY_2("Added position, Click the same spot to join!", "WorldEdit.Brush"),

core/src/main/java/com/boydti/fawe/example/MappedFaweQueue.java

@@ -572,14 +572,38 @@ public abstract class MappedFaweQueue<WORLD, CHUNK, CHUNKSECTIONS, SECTION> exte
 
     @Override
     public int getCachedCombinedId4Data(int x, int y, int z) throws FaweException.FaweChunkLoadException {
-        FaweChunk fc = map.getCachedFaweChunk(x >> 4, z >> 4);
+        int cx = x >> 4;
+        int cz = z >> 4;
+        FaweChunk fc = map.getCachedFaweChunk(cx, cz);
         if (fc != null) {
             int combined = fc.getBlockCombinedId(x & 15, y, z & 15);
             if (combined != 0) {
                 return combined;
             }
         }
-        return getCombinedId4Data(x, y, z);
+        int cy = y >> 4;
+        if (cx != lastSectionX || cz != lastSectionZ) {
+            lastSectionX = cx;
+            lastSectionZ = cz;
+            lastChunk = ensureChunkLoaded(cx, cz);
+            if (lastChunk != null) {
+                lastChunkSections = getSections(lastChunk);
+                lastSection = getCachedSection(lastChunkSections, cy);
+            } else {
+                lastChunkSections = null;
+                return 0;
+            }
+        } else if (cy != lastSectionY) {
+            if (lastChunkSections != null) {
+                lastSection = getCachedSection(lastChunkSections, cy);
+            } else {
+                return 0;
+            }
+        }
+        if (lastSection == null) {
+            return 0;
+        }
+        return getCombinedId4Data(lastSection, x, y, z);
     }
 
     @Override

core/src/main/java/com/boydti/fawe/object/brush/FlattenBrush.java

@@ -24,6 +24,6 @@ public class FlattenBrush extends HeightBrush {
             mask = null;
         }
         heightMap.setSize(size);
-        heightMap.apply(editSession, mask, position, size, rotation, yscale, true, true);
+        heightMap.perform(editSession, mask, position, size, rotation, yscale, true, true);
     }
 }

core/src/main/java/com/boydti/fawe/object/brush/HeightBrush.java

@@ -48,6 +48,6 @@ public class HeightBrush implements Brush {
             mask = null;
         }
         heightMap.setSize(size);
-        heightMap.apply(editSession, mask, position, size, rotation, yscale, true, false);
+        heightMap.perform(editSession, mask, position, size, rotation, yscale, true, false);
     }
 }

core/src/main/java/com/boydti/fawe/object/brush/ShatterBrush.java

@@ -0,0 +1,135 @@
+package com.boydti.fawe.object.brush;
+
+import com.boydti.fawe.object.PseudoRandom;
+import com.boydti.fawe.object.collection.LocalBlockVectorSet;
+import com.sk89q.worldedit.BlockVector;
+import com.sk89q.worldedit.EditSession;
+import com.sk89q.worldedit.MaxChangedBlocksException;
+import com.sk89q.worldedit.MutableBlockVector;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.command.tool.brush.Brush;
+import com.sk89q.worldedit.function.mask.Mask;
+import com.sk89q.worldedit.function.mask.Masks;
+import com.sk89q.worldedit.function.pattern.Pattern;
+import com.sk89q.worldedit.function.visitor.BreadthFirstSearch;
+import com.sk89q.worldedit.regions.CuboidRegion;
+
+public class ShatterBrush implements Brush {
+    private final int count;
+
+    public ShatterBrush(int count) {
+        this.count = count;
+    }
+
+    @Override
+    public void build(EditSession editSession, final Vector position, Pattern pattern, double size) throws MaxChangedBlocksException {
+        // We'll want this to be somewhat circular, so the cuboid needs to fit.
+        int r2Radius = (int) Math.ceil(size * Math.sqrt(2));
+        int radius2 = (int) (Math.ceil(r2Radius * r2Radius));
+        Vector bot = new MutableBlockVector(position.subtract(size, size, size));
+        Vector top = new MutableBlockVector(position.add(size, size, size));
+        CuboidRegion region = new CuboidRegion(bot, top);
+        // We'll want to use a fast random
+        PseudoRandom random = new PseudoRandom();
+        // We don't need double precision, so use a BlockVector
+        BlockVector min = region.getMinimumPoint().toBlockVector();
+        BlockVector max = region.getMaximumPoint().toBlockVector();
+        // Let's keep it inside the brush radius
+        int dx = max.getBlockX() - min.getBlockX() + 1;
+        int dy = max.getBlockY() - min.getBlockY() + 1;
+        int dz = max.getBlockZ() - min.getBlockZ() + 1;
+        // We'll store the points in a set
+        LocalBlockVectorSet queue = new LocalBlockVectorSet();
+        // User could select a single block and try to create 10 points = infinite loop
+        // To avoid being stuck in an infinite loop, let's stop after 5 collisions
+        int maxFails = 5;
+        for (int added = 0; added < count;) {
+            int x = (int) (random.nextDouble() * dx) + min.getBlockX();
+            int z = (int) (random.nextDouble() * dz) + min.getBlockZ();
+            int y = editSession.getHighestTerrainBlock(x, z, 0, 255);
+            // Check the adjacent blocks efficiently (loops over the adjacent blocks, or the set; whichever is faster)
+            if (!queue.containsRadius(x, y, z, 1)) {
+                added++;
+                queue.add(x, y, z);
+            } else if (maxFails-- <= 0) {
+                break;
+            }
+        }
+        // Ideally we'd calculate all the bisecting planes, but that's complex to program
+        // With this algorithm compute time depends on the number of blocks rather than the number of points
+        //  - Expand from each point (block by block) until there is a collision
+        {
+            // Keep track of where we've visited
+            LocalBlockVectorSet visited = queue;
+            LocalBlockVectorSet tmp = new LocalBlockVectorSet();
+            // Individual frontier for each point
+            LocalBlockVectorSet[] frontiers = new LocalBlockVectorSet[queue.size()];
+            // Keep track of where each frontier has visited
+            LocalBlockVectorSet[] frontiersVisited = new LocalBlockVectorSet[queue.size()];
+            // Initiate the frontier with the starting points
+            int i = 0;
+            for (Vector pos : queue) {
+                LocalBlockVectorSet set = new LocalBlockVectorSet();
+                set.add(pos);
+                frontiers[i] = set;
+                frontiersVisited[i] = set.clone();
+                i++;
+            }
+            // Mask
+            Mask mask = editSession.getMask();
+            if (mask == null) {
+                mask = Masks.alwaysTrue();
+            }
+            final Mask finalMask = mask;
+            // Expand
+            boolean notEmpty = true;
+            while (notEmpty) {
+                notEmpty = false;
+                for (i = 0; i < frontiers.length; i++) {
+                    LocalBlockVectorSet frontier = frontiers[i];
+                    notEmpty |= !frontier.isEmpty();
+                    final LocalBlockVectorSet frontierVisited = frontiersVisited[i];
+                    // This is a temporary set with the next blocks the frontier will visit
+                    final LocalBlockVectorSet finalTmp = tmp;
+                    frontier.forEach(new LocalBlockVectorSet.BlockVectorSetVisitor() {
+                        @Override
+                        public void run(int x, int y, int z, int index) {
+                            if (PseudoRandom.random.random(2) == 0) {
+                                finalTmp.add(x, y, z);
+                                return;
+                            }
+                            for (Vector direction : BreadthFirstSearch.DEFAULT_DIRECTIONS) {
+                                int x2 = x + direction.getBlockX();
+                                int y2 = y + direction.getBlockY();
+                                int z2 = z + direction.getBlockZ();
+                                // Check boundary
+                                int dx = position.getBlockX() - x2;
+                                int dy = position.getBlockY() - y2;
+                                int dz = position.getBlockZ() - z2;
+                                int dSqr = (dx * dx) + (dy * dy) + (dz * dz);
+                                if (dSqr <= radius2) {
+                                    if (finalMask.test(MutableBlockVector.get(x2, y2, z2))) {
+                                        // (collision) If it's visited and part of another frontier, set the block
+                                        if (!visited.add(x2, y2, z2)) {
+                                            if (!frontierVisited.contains(x2, y2, z2)) {
+                                                editSession.setBlock(x2, y2, z2, pattern);
+                                            }
+                                        } else {
+                                            // Hasn't visited and not a collision = add it
+                                            finalTmp.add(x2, y2, z2);
+                                            frontierVisited.add(x2, y2, z2);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    });
+                    // Swap the frontier with the temporary set
+                    frontiers[i] = tmp;
+                    tmp = frontier;
+                    tmp.clear();
+                }
+            }
+        }
+    }
+}

core/src/main/java/com/boydti/fawe/object/brush/StencilBrush.java

@@ -0,0 +1,54 @@
+package com.boydti.fawe.object.brush;
+
+import com.sk89q.worldedit.EditSession;
+import com.sk89q.worldedit.MaxChangedBlocksException;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.function.mask.Mask;
+import com.sk89q.worldedit.function.mask.Masks;
+import com.sk89q.worldedit.function.pattern.Pattern;
+import java.io.InputStream;
+
+public class StencilBrush extends HeightBrush {
+    private final boolean onlyWhite;
+
+    public StencilBrush(InputStream stream, int rotation, double yscale, boolean onlyWhite, Clipboard clipboard) {
+        super(stream, rotation, yscale, clipboard);
+        this.onlyWhite = onlyWhite;
+    }
+
+    @Override
+    public void build(EditSession editSession, Vector position, Pattern pattern, double sizeDouble) throws MaxChangedBlocksException {
+        int size = (int) sizeDouble;
+        Mask mask = editSession.getMask();
+        if (mask == Masks.alwaysTrue() || mask == Masks.alwaysTrue2D()) {
+            mask = null;
+        }
+        heightMap.setSize(size);
+        for (int x = -size; x <= size; x++) {
+            int xx = position.getBlockX() + x;
+            for (int z = -size; z <= size; z++) {
+                int zz = position.getBlockZ() + z;
+                double raise;
+                switch (rotation) {
+                    default:raise = heightMap.getHeight(x, z); break;
+                    case 1: raise = heightMap.getHeight(z, x); break;
+                    case 2: raise = heightMap.getHeight(-x, -z); break;
+                    case 3: raise = heightMap.getHeight(-z, -x);break;
+                }
+                raise *= yscale;
+                if (raise == 0 || (onlyWhite && raise < 255)) {
+                    continue;
+                }
+            }
+        }
+
+
+        int[] data = heightMap.generateHeightData(editSession, mask, position, size, rotation, yscale, true, false);
+        int diameter = size * 2;
+        int x = position.getBlockX();
+        int y = position.getBlockY();
+        int z = position.getBlockZ();
+    }
+
+}

core/src/main/java/com/boydti/fawe/object/brush/heightmap/ScalableHeightMap.java

@@ -118,7 +118,32 @@ public class ScalableHeightMap {
         return new ArrayHeightMap(array);
     }
 
-    public void apply(EditSession session, Mask mask, Vector pos, int size, int rotationMode, double yscale, boolean smooth, boolean towards) throws MaxChangedBlocksException {
+    public void perform(EditSession session, Mask mask, Vector pos, int size, int rotationMode, double yscale, boolean smooth, boolean towards) throws MaxChangedBlocksException {
+        int[] data = generateHeightData(session, mask, pos, size, rotationMode, yscale, smooth, towards);
+        applyHeightMapData(data, session, mask, pos, size, rotationMode, yscale, smooth, towards);
+    }
+
+    public void applyHeightMapData(int[] data, EditSession session, Mask mask, Vector pos, int size, int rotationMode, double yscale, boolean smooth, boolean towards) throws MaxChangedBlocksException {
+        Vector top = session.getMaximumPoint();
+        int maxY = top.getBlockY();
+        int diameter = 2 * size + 1;
+        int iterations = 1;
+        WorldVector min = new WorldVector(LocalWorldAdapter.adapt(session.getWorld()), pos.subtract(size, maxY, size));
+        Vector max = pos.add(size, maxY, size);
+        Region region = new CuboidRegion(session.getWorld(), min, max);
+        HeightMap heightMap = new HeightMap(session, region, true);
+        if (smooth) {
+            try {
+                HeightMapFilter filter = (HeightMapFilter) HeightMapFilter.class.getConstructors()[0].newInstance(GaussianKernel.class.getConstructors()[0].newInstance(5, 1));
+                data = filter.filter(data, diameter, diameter);
+            } catch (Throwable e) {
+                MainUtil.handleError(e);
+            }
+        }
+        heightMap.apply(data);
+    }
+
+    public int[] generateHeightData(EditSession session, Mask mask, Vector pos, int size, int rotationMode, double yscale, boolean smooth, boolean towards) {
         Vector top = session.getMaximumPoint();
         int maxY = top.getBlockY();
         int diameter = 2 * size + 1;
@@ -201,19 +226,6 @@ public class ScalableHeightMap {
                 }
             }
         }
-        int iterations = 1;
-        WorldVector min = new WorldVector(LocalWorldAdapter.adapt(session.getWorld()), pos.subtract(size, maxY, size));
-        Vector max = pos.add(size, maxY, size);
-        Region region = new CuboidRegion(session.getWorld(), min, max);
-        HeightMap heightMap = new HeightMap(session, region, true);
-        if (smooth) {
-            try {
-                HeightMapFilter filter = (HeightMapFilter) HeightMapFilter.class.getConstructors()[0].newInstance(GaussianKernel.class.getConstructors()[0].newInstance(5, 1));
-                newData = filter.filter(newData, diameter, diameter);
-            } catch (Throwable e) {
-                MainUtil.handleError(e);
-            }
-        }
-        heightMap.apply(newData);
+        return newData;
     }
 }

core/src/main/java/com/sk89q/worldedit/command/BrushCommands.java

@@ -35,7 +35,9 @@ import com.boydti.fawe.object.brush.LineBrush;
 import com.boydti.fawe.object.brush.RaiseBrush;
 import com.boydti.fawe.object.brush.RecurseBrush;
 import com.boydti.fawe.object.brush.SplineBrush;
+import com.boydti.fawe.object.brush.StencilBrush;
 import com.boydti.fawe.object.brush.TargetMode;
+import com.boydti.fawe.object.brush.ShatterBrush;
 import com.boydti.fawe.object.brush.heightmap.ScalableHeightMap;
 import com.boydti.fawe.object.brush.scroll.ScrollClipboard;
 import com.boydti.fawe.object.brush.scroll.ScrollMask;
@@ -79,6 +81,7 @@ import com.sk89q.worldedit.extension.platform.CommandManager;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.extent.clipboard.io.ClipboardFormat;
 import com.sk89q.worldedit.function.mask.BlockMask;
+import com.sk89q.worldedit.function.mask.ExistingBlockMask;
 import com.sk89q.worldedit.function.mask.Mask;
 import com.sk89q.worldedit.function.pattern.BlockPattern;
 import com.sk89q.worldedit.function.pattern.Pattern;
@@ -268,7 +271,7 @@ public class BrushCommands {
                         File working = this.worldEdit.getWorkingDirectoryFile(config.saveDir);
                         File dir = new File(working, (Settings.IMP.PATHS.PER_PLAYER_SCHEMATICS ? (player.getUniqueId().toString() + File.separator) : "") + filename);
                         if (!dir.exists()) {
-                            if (!filename.contains("/") && !filename.contains("\\")) {
+                            if ((!filename.contains("/") && !filename.contains("\\")) || player.hasPermission("worldedit.schematic.load.other")) {
                                 dir = new File(this.worldEdit.getWorkingDirectoryFile(config.saveDir), filename);
                             }
                         }
@@ -507,27 +510,52 @@ public class BrushCommands {
         if (!FawePlayer.wrap(player).hasPermission("fawe.tips")) BBC.TIP_BRUSH_COMMAND.or(BBC.TIP_BRUSH_RELATIVE, BBC.TIP_BRUSH_TRANSFORM, BBC.TIP_BRUSH_MASK_SOURCE, BBC.TIP_BRUSH_MASK, BBC.TIP_BRUSH_COPY, BBC.TIP_BRUSH_HEIGHT, BBC.TIP_BRUSH_SPLINE).send(player);
     }
 
-//    @Command(
-//            aliases = { "test" },
-//            usage = "<pattern> [radius] [count] [distance]",
-//            flags = "h",
-//            desc = "Choose the sphere brush",
-//            help =
-//                    "Chooses the sphere brush.\n" +
-//                            "The -h flag creates hollow spheres instead.",
-//            min = 1,
-//            max = -1
-//    )
-//    @CommandPermissions("worldedit.brush.test")
-//    public void testBrush(Player player, LocalSession session, Pattern fill, @Optional("10") double radius, @Optional("10") int count, @Optional("10") int distance) throws WorldEditException {
-//        worldEdit.checkMaxBrushRadius(radius);
-//
-//        BrushTool tool = session.getBrushTool(player);
-//        tool.setFill(fill);
-//        tool.setSize(radius);
-//        tool.setBrush(new Test(count), "worldedit.brush.test");
-//        player.print("equiped");
-//    }
+    @Command(
+            aliases = { "shatter", "partition", "split" },
+            usage = "<pattern> [radius] [count] [distance]",
+            desc = "Creates random lines to break the terrain into pieces",
+            help =
+                    "Chooses the shatter brush",
+            min = 1,
+            max = -1
+    )
+    @CommandPermissions("worldedit.brush.shatter")
+    public void shatterBrush(Player player, EditSession editSession, LocalSession session, Pattern fill, @Optional("10") double radius, @Optional("10") int count) throws WorldEditException {
+        worldEdit.checkMaxBrushRadius(radius);
+
+        BrushTool tool = session.getBrushTool(player);
+        tool.setFill(fill);
+        tool.setSize(radius);
+        tool.setMask(new ExistingBlockMask(editSession));
+        tool.setBrush(new ShatterBrush(count), "worldedit.brush.shatter");
+        player.print(BBC.getPrefix() + BBC.BRUSH_SHATTER.f(radius, count));
+    }
+
+    @Command(
+            aliases = { "stencil", "color"},
+            usage = "<pattern> [radius] [file|#clipboard|null] [rotation] [yscale]",
+            desc = "Use a height map to paint a surface",
+            help =
+                    "Chooses the stencil brush.\n" +
+                            "The -w flag will only apply at maximum saturation",
+            min = 1,
+            max = -1
+    )
+    @CommandPermissions("worldedit.brush.stencil")
+    public void stencilBrush(Player player, LocalSession session, Pattern fill, @Optional("5") double radius, @Optional("") final String filename, @Optional("0") final int rotation, @Optional("1") final double yscale, @Switch('w') boolean onlyWhite) throws WorldEditException {
+        worldEdit.checkMaxBrushRadius(radius);
+        BrushTool tool = session.getBrushTool(player);
+        InputStream stream = getHeightmapStream(filename);
+        tool.setFill(fill);
+        tool.setSize(radius);
+        try {
+            tool.setBrush(new StencilBrush(stream, rotation, yscale, onlyWhite, filename.equalsIgnoreCase("#clipboard") ? session.getClipboard().getClipboard() : null), "worldedit.brush.height", player);
+        } catch (EmptyClipboardException ignore) {
+            tool.setBrush(new StencilBrush(stream, rotation, yscale, onlyWhite, null), "worldedit.brush.height", player);
+        }
+
+        player.print(BBC.getPrefix() + BBC.BRUSH_STENCIL.f(radius));
+    }
 
     @Command(
             aliases = { "cylinder", "cyl", "c" },
@@ -701,11 +729,9 @@ public class BrushCommands {
         terrainBrush(player, session, radius, filename, rotation, yscale, true, ScalableHeightMap.Shape.CONE);
     }
 
-    private void terrainBrush(Player player, LocalSession session, double radius, String filename, int rotation, double yscale, boolean flat, ScalableHeightMap.Shape shape) throws WorldEditException {
-        worldEdit.checkMaxBrushRadius(radius);
+    private InputStream getHeightmapStream(String filename) {
         String filenamePng = (filename.endsWith(".png") ? filename : filename + ".png");
         File file = new File(Fawe.imp().getDirectory(), "heightmap" + File.separator + filenamePng);
-        InputStream stream = null;
         if (!file.exists()) {
             if (!filename.equals("#clipboard") && filename.length() >= 7) {
                 try {
@@ -719,19 +745,24 @@ public class BrushCommands {
                         url = new URL("https://i.imgur.com/" + filenamePng);
                     }
                     ReadableByteChannel rbc = Channels.newChannel(url.openStream());
-                    stream = Channels.newInputStream(rbc);
+                    return Channels.newInputStream(rbc);
                 } catch (IOException e) {
                     throw new RuntimeException(e);
                 }
             }
         } else if (!filename.equalsIgnoreCase("#clipboard")){
             try {
-                stream = new FileInputStream(file);
+                return new FileInputStream(file);
             } catch (FileNotFoundException e) {
                 throw new RuntimeException(e);
             }
         }
+        return null;
+    }
 
+    private void terrainBrush(Player player, LocalSession session, double radius, String filename, int rotation, double yscale, boolean flat, ScalableHeightMap.Shape shape) throws WorldEditException {
+        worldEdit.checkMaxBrushRadius(radius);
+        InputStream stream = getHeightmapStream(filename);
         BrushTool tool = session.getBrushTool(player);
         tool.setSize(radius);
         if (flat) {

core/src/main/java/com/sk89q/worldedit/command/SchematicCommands.java

@@ -55,6 +55,7 @@ import java.io.InputStream;
 import java.net.URL;
 import java.nio.channels.Channels;
 import java.nio.channels.ReadableByteChannel;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
@@ -132,7 +133,7 @@ public class SchematicCommands {
                     }
                 }
                 if (!f.exists()) {
-                    if (!filename.contains("/") && !filename.contains("\\")) {
+                    if ((!filename.contains("/") && !filename.contains("\\")) || player.hasPermission("worldedit.schematic.load.other")) {
                         dir = this.worldEdit.getWorkingDirectoryFile(config.saveDir);
                         f = this.worldEdit.getSafeSaveFile(player, dir, filename, format.getExtension(), format.getExtension());
                     }
@@ -203,10 +204,15 @@ public class SchematicCommands {
         final File parent = f.getParentFile();
         if ((parent != null) && !parent.exists()) {
             if (!parent.mkdirs()) {
+                try {
+                    Files.createDirectories(parent.toPath());
+                } catch (IOException e) {
+                    e.printStackTrace();
                     log.info("Could not create folder for schematics!");
                     return;
                 }
             }
+        }
         try {
             if (!f.exists()) {
                 f.createNewFile();

core/src/main/java/com/sk89q/worldedit/command/tool/BrushTool.java

@@ -18,6 +18,7 @@ import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.LocalConfiguration;
 import com.sk89q.worldedit.LocalSession;
 import com.sk89q.worldedit.MaxChangedBlocksException;
+import com.sk89q.worldedit.MutableBlockVector;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.blocks.BaseBlock;
@@ -232,7 +233,7 @@ public class BrushTool implements DoubleActionTraceTool, ScrollTool, MovableTool
     public Vector getPosition(EditSession editSession, Player player) {
         switch (targetMode) {
             case TARGET_BLOCK_RANGE:
-                return player.getBlockTrace(getRange(), true);
+                return new MutableBlockVector(player.getBlockTrace(getRange(), true));
             case FOWARD_POINT_PITCH: {
                 int d = 0;
                 Location loc = player.getLocation();
@@ -241,7 +242,7 @@ public class BrushTool implements DoubleActionTraceTool, ScrollTool, MovableTool
                 d += (int) (Math.sin(Math.toRadians(pitch)) * 50);
                 final Vector vector = loc.getDirection().setY(0).normalize().multiply(d);
                 vector.add(loc.getX(), loc.getY(), loc.getZ()).toBlockVector();
-                return vector;
+                return new MutableBlockVector(vector);
             }
             case TARGET_POINT_HEIGHT: {
                 Location loc = player.getLocation();
@@ -256,10 +257,10 @@ public class BrushTool implements DoubleActionTraceTool, ScrollTool, MovableTool
                     }
                 }
                 final int distance = (height - y) + 8;
-                return player.getBlockTrace(distance, true);
+                return new MutableBlockVector(player.getBlockTrace(distance, true));
             }
             case TARGET_FACE_RANGE:
-                return player.getBlockTraceFace(getRange(), true);
+                return new MutableBlockVector(player.getBlockTraceFace(getRange(), true));
             default:
                 return null;
         }

core/src/main/java/com/sk89q/worldedit/extension/platform/CommandManager.java

@@ -119,6 +119,7 @@ public final class CommandManager {
     private final WorldEdit worldEdit;
     private final PlatformManager platformManager;
     private volatile Dispatcher dispatcher;
+    private volatile Platform platform;
     private final DynamicStreamHandler dynamicHandler = new DynamicStreamHandler();
     private final ExceptionConverter exceptionConverter;
 
@@ -246,7 +247,9 @@ public final class CommandManager {
                 .registerMethods(new BrushCommands(worldEdit))
                 .parent().graph().getDispatcher();
 
-
+        if (platform != null) {
+            platform.registerCommands(dispatcher);
+        }
     }
 
     public static CommandManager getInstance() {
@@ -281,7 +284,7 @@ public final class CommandManager {
             }
         }
 
-        platform.registerCommands(dispatcher);
+        this.platform = platform;
     }
 
     public void unregister() {