Add entity, biome, and mask flags to clipboard brush.

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

@@ -131,7 +131,7 @@ public class BrushCommands {
     @Command(
         aliases = { "clipboard", "copy" },
         usage = "",
-        flags = "ap",
+        flags = "aoebm",
         desc = "Choose the clipboard brush",
         help =
             "Chooses the clipboard brush.\n" +
@@ -141,7 +141,8 @@ public class BrushCommands {
             "stood relative to the copied area when you copied it."
     )
     @CommandPermissions("worldedit.brush.clipboard")
-    public void clipboardBrush(Player player, LocalSession session, @Switch('a') boolean ignoreAir, @Switch('p') boolean usingOrigin) throws WorldEditException {
+    public void clipboardBrush(Player player, LocalSession session, @Switch('a') boolean ignoreAir, @Switch('o') boolean usingOrigin,
+                               @Switch('e') boolean pasteEntities, @Switch('b') boolean pasteBiomes, @Switch('m') Mask sourceMask) throws WorldEditException {
         ClipboardHolder holder = session.getClipboard();
         Clipboard clipboard = holder.getClipboard();
 
@@ -152,7 +153,7 @@ public class BrushCommands {
         worldEdit.checkMaxBrushRadius(size.getBlockZ() / 2D - 1);
 
         BrushTool tool = session.getBrushTool(player.getItemInHand(HandSide.MAIN_HAND).getType());
-        tool.setBrush(new ClipboardBrush(holder, ignoreAir, usingOrigin), "worldedit.brush.clipboard");
+        tool.setBrush(new ClipboardBrush(holder, ignoreAir, usingOrigin, pasteEntities, pasteBiomes, sourceMask), "worldedit.brush.clipboard");
 
         player.print("Clipboard brush shape equipped.");
     }

worldedit-core/src/main/java/com/sk89q/worldedit/command/ClipboardCommands.java

@@ -170,16 +170,14 @@ public class ClipboardCommands {
         Region region = clipboard.getRegion();
 
         BlockVector3 to = atOrigin ? clipboard.getOrigin() : session.getPlacementPosition(player);
-        PasteBuilder builder = holder
+        Operation operation = holder
                 .createPaste(editSession)
                 .to(to)
                 .ignoreAirBlocks(ignoreAirBlocks)
                 .copyBiomes(pasteBiomes)
-                .copyEntities(pasteEntities);
-        if (sourceMask != null) {
-            builder.maskSource(sourceMask);
-        }
-        Operation operation = builder.build();
+                .copyEntities(pasteEntities)
+                .maskSource(sourceMask)
+                .build();
         Operations.completeLegacy(operation);
 
         if (selectPasted) {

worldedit-core/src/main/java/com/sk89q/worldedit/command/tool/brush/ClipboardBrush.java

@@ -22,6 +22,7 @@ package com.sk89q.worldedit.command.tool.brush;
 import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.MaxChangedBlocksException;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import com.sk89q.worldedit.function.mask.Mask;
 import com.sk89q.worldedit.function.operation.Operation;
 import com.sk89q.worldedit.function.operation.Operations;
 import com.sk89q.worldedit.function.pattern.Pattern;
@@ -31,14 +32,30 @@ import com.sk89q.worldedit.session.ClipboardHolder;
 
 public class ClipboardBrush implements Brush {
 
-    private ClipboardHolder holder;
-    private boolean ignoreAirBlocks;
-    private boolean usingOrigin;
+    private final ClipboardHolder holder;
+    private final boolean ignoreAirBlocks;
+    private final boolean usingOrigin;
+    private final boolean pasteEntities;
+    private final boolean pasteBiomes;
+    private final Mask sourceMask;
 
     public ClipboardBrush(ClipboardHolder holder, boolean ignoreAirBlocks, boolean usingOrigin) {
         this.holder = holder;
         this.ignoreAirBlocks = ignoreAirBlocks;
         this.usingOrigin = usingOrigin;
+        this.pasteBiomes = false;
+        this.pasteEntities = false;
+        this.sourceMask = null;
+    }
+
+    public ClipboardBrush(ClipboardHolder holder, boolean ignoreAirBlocks, boolean usingOrigin, boolean pasteEntities,
+                          boolean pasteBiomes, Mask sourceMask) {
+        this.holder = holder;
+        this.ignoreAirBlocks = ignoreAirBlocks;
+        this.usingOrigin = usingOrigin;
+        this.pasteEntities = pasteEntities;
+        this.pasteBiomes = pasteBiomes;
+        this.sourceMask = sourceMask;
     }
 
     @Override
@@ -51,6 +68,9 @@ public class ClipboardBrush implements Brush {
                 .createPaste(editSession)
                 .to(usingOrigin ? position : position.subtract(centerOffset))
                 .ignoreAirBlocks(ignoreAirBlocks)
+                .copyEntities(pasteEntities)
+                .copyBiomes(pasteBiomes)
+                .maskSource(sourceMask)
                 .build();
 
         Operations.completeLegacy(operation);

worldedit-core/src/main/java/com/sk89q/worldedit/function/biome/ExtentBiomeCopy.java

@@ -23,7 +23,6 @@ import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.function.FlatRegionFunction;
 import com.sk89q.worldedit.math.BlockVector2;
-import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.math.transform.Transform;
 import com.sk89q.worldedit.world.biome.BiomeType;
 
@@ -32,7 +31,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
 /**
  * Copies the biome from one extent to another.
  */
-public class ExtentBiomeCopy  implements FlatRegionFunction {
+public class ExtentBiomeCopy implements FlatRegionFunction {
 
     private final Extent source;
     private final Extent destination;

worldedit-core/src/main/java/com/sk89q/worldedit/session/PasteBuilder.java

@@ -83,6 +83,10 @@ public class PasteBuilder {
      * @return this builder instance
      */
     public PasteBuilder maskSource(Mask sourceMask) {
+        if (sourceMask == null) {
+            this.sourceMask = Masks.alwaysTrue();
+            return this;
+        }
         this.sourceMask = sourceMask;
         return this;
     }