Allow expand to be used by console. (#1264)

* Allow expand to be used by console.

Also fix direction converter requiring a player.

* Revert exception.

(cherry picked from commit b4d2db3dee01d6af4f49d6ee1ea015dbd685839c)

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

@@ -93,29 +93,30 @@ public class ExpandCommands {
             .action(parameters -> {
                 expandVert(
                     requireIV(Key.of(LocalSession.class), "localSession", parameters),
-                    requireIV(Key.of(Player.class), "localSession", parameters)
+                    requireIV(Key.of(Actor.class), "actor", parameters),
+                    requireIV(Key.of(World.class), "world", parameters)
                 );
                 return 1;
             })
             .build();
     }
 
-    private static void expandVert(LocalSession session, Player player) throws IncompleteRegionException {
+    private static void expandVert(LocalSession session, Actor actor, World world) throws IncompleteRegionException {
-        Region region = session.getSelection(player.getWorld());
+        Region region = session.getSelection(world);
         try {
             int oldSize = region.getArea();
             region.expand(
-                BlockVector3.at(0, (player.getWorld().getMaxY() + 1), 0),
+                BlockVector3.at(0, (world.getMaxY() + 1), 0),
-                BlockVector3.at(0, -(player.getWorld().getMaxY() + 1), 0));
+                BlockVector3.at(0, -(world.getMaxY() + 1), 0));
-            session.getRegionSelector(player.getWorld()).learnChanges();
+            session.getRegionSelector(world).learnChanges();
             int newSize = region.getArea();
-            session.getRegionSelector(player.getWorld()).explainRegionAdjust(player, session);
+            session.getRegionSelector(world).explainRegionAdjust(actor, session);
             int changeSize = newSize - oldSize;
-            player.printInfo(
+            actor.printInfo(
                     TranslatableComponent.of("worldedit.expand.expanded.vert", TextComponent.of(changeSize))
             );
         } catch (RegionOperationException e) {
-            player.printError(TextComponent.of(e.getMessage()));
+            actor.printError(TextComponent.of(e.getMessage()));
         }
     }
 

worldedit-core/src/main/java/com/sk89q/worldedit/command/argument/AbstractDirectionConverter.java

@@ -25,6 +25,7 @@ import com.google.common.collect.ImmutableSet;
 import com.sk89q.worldedit.UnknownDirectionException;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.entity.Player;
+import com.sk89q.worldedit.extension.platform.Actor;
 import com.sk89q.worldedit.internal.annotation.Direction;
 import com.sk89q.worldedit.internal.annotation.MultiDirection;
 import com.sk89q.worldedit.util.formatting.text.Component;
@@ -92,7 +93,8 @@ public abstract class AbstractDirectionConverter<D> implements ArgumentConverter
 
     @Override
     public ConversionResult<D> convert(String argument, InjectedValueAccess context) {
-        Player player = context.injectedValue(Key.of(Player.class)).orElse(null);
+        Player player = context.injectedValue(Key.of(Actor.class))
+                .filter(Player.class::isInstance).map(Player.class::cast).orElse(null);
         try {
             return SuccessfulConversion.fromSingle(convertDirection(argument, player, includeDiagonals));
         } catch (Exception e) {