Added back old region selector classes as deprecated.

src/legacy/java/com/sk89q/worldedit/regions/ConvexPolyhedralRegionSelector.java

@@ -0,0 +1,29 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+import com.sk89q.worldedit.internal.cui.CUIRegion;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class ConvexPolyhedralRegionSelector implements RegionSelector, CUIRegion {
+}

src/legacy/java/com/sk89q/worldedit/regions/CuboidRegionSelector.java

@@ -0,0 +1,29 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+import com.sk89q.worldedit.internal.cui.CUIRegion;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class CuboidRegionSelector implements RegionSelector, CUIRegion {
+}

src/legacy/java/com/sk89q/worldedit/regions/CylinderRegionSelector.java

@@ -0,0 +1,29 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+import com.sk89q.worldedit.internal.cui.CUIRegion;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class CylinderRegionSelector implements RegionSelector, CUIRegion {
+}

src/legacy/java/com/sk89q/worldedit/regions/EllipsoidRegionSelector.java

@@ -0,0 +1,29 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+import com.sk89q.worldedit.internal.cui.CUIRegion;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
+}

src/legacy/java/com/sk89q/worldedit/regions/ExtendingCuboidRegionSelector.java

@@ -0,0 +1,27 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class ExtendingCuboidRegionSelector extends CuboidRegionSelector {
+}

src/legacy/java/com/sk89q/worldedit/regions/Polygonal2DRegionSelector.java

@@ -0,0 +1,37 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+import com.sk89q.worldedit.internal.cui.CUIRegion;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
+
+    /**
+     * Get the number of points.
+     *
+     * @return the number of points
+     */
+    public abstract int getPointCount();
+
+}

src/legacy/java/com/sk89q/worldedit/regions/SphereRegionSelector.java

@@ -0,0 +1,27 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.regions;
+
+/**
+ * @deprecated This class only exists as to not break binary compatibility
+ */
+@Deprecated
+public abstract class SphereRegionSelector extends EllipsoidRegionSelector {
+}

src/main/java/com/sk89q/worldedit/regions/RegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions;
 
@@ -24,90 +24,89 @@ import com.sk89q.worldedit.*;
 import java.util.List;
 
 /**
- * Region selection factory.
+ * Region selectors create {@link Region}s from a series of "selected points."
- *
+ * They are used, for example, to allow users to create a {@link CuboidRegion}
- * @author sk89q
+ * by selecting two corners of the cuboid.
  */
 public interface RegionSelector {
+
     /**
      * Called when the first point is selected.
      * 
-     * @param pos
+     * @param position the position
      * @return true if something changed
      */
-    public boolean selectPrimary(Vector pos);
+    public boolean selectPrimary(Vector position);
 
     /**
      * Called when the second point is selected.
      * 
-     * @param pos
+     * @param position the position
      * @return true if something changed
      */
-    public boolean selectSecondary(Vector pos);
+    public boolean selectSecondary(Vector position);
 
     /**
      * Tell the player information about his/her primary selection.
      * 
-     * @param player
+     * @param player the player
-     * @param session 
+     * @param session the session
-     * @param pos 
+     * @param position position
      */
-    public void explainPrimarySelection(LocalPlayer player,
+    public void explainPrimarySelection(LocalPlayer player, LocalSession session, Vector position);
-            LocalSession session, Vector pos);
 
     /**
      * Tell the player information about his/her secondary selection.
      *
-     * @param player
+     * @param player the player
-     * @param session 
+     * @param session the session
-     * @param pos 
+     * @param position position
      */
-    public void explainSecondarySelection(LocalPlayer player,
+    public void explainSecondarySelection(LocalPlayer player, LocalSession session, Vector position);
-            LocalSession session, Vector pos);
 
     /**
      * The the player information about the region's changes. This may resend
      * all the defining region information if needed.
      *
-     * @param player
+     * @param player the player
-     * @param session
+     * @param session the session
      */
     public void explainRegionAdjust(LocalPlayer player, LocalSession session);
 
     /**
      * Get the primary position.
      * 
-     * @return
+     * @return the primary position
-     * @throws IncompleteRegionException 
+     * @throws IncompleteRegionException thrown if a region has not been fully defined
      */
     public BlockVector getPrimaryPosition() throws IncompleteRegionException;
 
     /**
      * Get the selection.
      * 
-     * @return
+     * @return the created region
-     * @throws IncompleteRegionException 
+     * @throws IncompleteRegionException thrown if a region has not been fully defined
      */
     public Region getRegion() throws IncompleteRegionException;
 
     /**
      * Get the region even if it's not fully defined.
      * 
-     * @return
+     * @return an incomplete region object that is incomplete
      */
     public Region getIncompleteRegion();
 
     /**
      * Returns whether the region has been fully defined.
      * 
-     * @return
+     * @return true if a selection is available
      */
     public boolean isDefined();
 
     /**
      * Get the number of blocks inside the region.
      * 
-     * @return number of blocks or -1 if undefined
+     * @return number of blocks, or -1 if undefined
      */
     public int getArea();
 
@@ -124,14 +123,15 @@ public interface RegionSelector {
     /**
      * Get a lowercase name of this region selector type.
      * 
-     * @return
+     * @return a lower case name of the type
      */
     public String getTypeName();
 
     /**
      * Get lines of information about the selection.
      * 
-     * @return
+     * @return a list of lines describing the region
      */
     public List<String> getInformationLines();
+
 }

src/main/java/com/sk89q/worldedit/regions/selector/ConvexPolyhedralRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,22 +15,11 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
-import java.util.ArrayList;
+import com.sk89q.worldedit.*;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.BlockVector2D;
-import com.sk89q.worldedit.IncompleteRegionException;
-import com.sk89q.worldedit.LocalPlayer;
-import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.LocalWorld;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.internal.cui.CUIRegion;
 import com.sk89q.worldedit.internal.cui.SelectionPointEvent;
@@ -41,17 +30,40 @@ import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.regions.RegionSelector;
 import com.sk89q.worldedit.regions.polyhedron.Triangle;
 
-public class ConvexPolyhedralRegionSelector implements RegionSelector, CUIRegion {
+import javax.annotation.Nullable;
+import java.util.*;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * A {@link RegionSelector} for {@link ConvexPolyhedralRegion}s.
+ */
+public class ConvexPolyhedralRegionSelector extends com.sk89q.worldedit.regions.ConvexPolyhedralRegionSelector implements RegionSelector, CUIRegion {
+
     private int maxVertices;
     private final ConvexPolyhedralRegion region;
     private BlockVector pos1;
 
-    public ConvexPolyhedralRegionSelector(LocalWorld world, int maxVertices) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param maxVertices the maximum number of vertices, where a number below 0 means unbounded
+     */
+    public ConvexPolyhedralRegionSelector(@Nullable LocalWorld world, int maxVertices) {
         this.maxVertices = maxVertices;
         region = new ConvexPolyhedralRegion(world);
     }
 
+    /**
+     * Create a new selector.
+     *
+     * @param oldSelector the old selector
+     * @param maxVertices the maximum number of vertices, where a number below 0 means unbounded
+     */
     public ConvexPolyhedralRegionSelector(RegionSelector oldSelector, int maxVertices) {
+        checkNotNull(oldSelector);
+
         this.maxVertices = maxVertices;
         if (oldSelector instanceof ConvexPolyhedralRegionSelector) {
             final ConvexPolyhedralRegionSelector convexPolyhedralRegionSelector = (ConvexPolyhedralRegionSelector) oldSelector;
@@ -219,4 +231,5 @@ public class ConvexPolyhedralRegionSelector implements RegionSelector, CUIRegion
             session.dispatchCUIEvent(player, new SelectionShapeEvent(getLegacyTypeID()));
         }
     }
+
 }

src/main/java/com/sk89q/worldedit/regions/selector/CuboidRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,44 +15,55 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
-import java.util.ArrayList;
+import com.sk89q.worldedit.*;
-import java.util.List;
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.IncompleteRegionException;
-import com.sk89q.worldedit.LocalPlayer;
-import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.LocalWorld;
-import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.internal.cui.CUIRegion;
 import com.sk89q.worldedit.internal.cui.SelectionPointEvent;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.regions.RegionSelector;
 
+import javax.annotation.Nullable;
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
- * Selector for cuboids.
+ * A {@link RegionSelector} for {@link CuboidRegion}s.
- *
- * @author sk89q
  */
-public class CuboidRegionSelector implements RegionSelector, CUIRegion {
+public class CuboidRegionSelector extends com.sk89q.worldedit.regions.CuboidRegionSelector implements RegionSelector, CUIRegion {
+
     protected BlockVector pos1;
     protected BlockVector pos2;
     protected CuboidRegion region;
 
-    public CuboidRegionSelector(LocalWorld world) {
+    /**
-        region = new CuboidRegion(world, new Vector(), new Vector());
+     * Create a new region selector with no world.
-    }
+     */
-
     public CuboidRegionSelector() {
         this((LocalWorld) null);
     }
 
+    /**
+     * Create a new region selector.
+     *
+     * @param world the world
+     */
+    public CuboidRegionSelector(@Nullable LocalWorld world) {
+        region = new CuboidRegion(world, new Vector(), new Vector());
+    }
+
+    /**
+     * Create a copy of another selector.
+     *
+     * @param oldSelector another selector
+     */
     public CuboidRegionSelector(RegionSelector oldSelector) {
-        this(oldSelector.getIncompleteRegion().getWorld());
+        this(checkNotNull(oldSelector).getIncompleteRegion().getWorld());
         if (oldSelector instanceof CuboidRegionSelector) {
             final CuboidRegionSelector cuboidRegionSelector = (CuboidRegionSelector) oldSelector;
 
@@ -74,14 +85,25 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         region.setPos2(pos2);
     }
 
-    public CuboidRegionSelector(LocalWorld world, Vector pos1, Vector pos2) {
+    /**
+     * Create a new region selector with the given two positions.
+     *
+     * @param world the world
+     * @param pos1 position 1
+     * @param pos2 position 2
+     */
+    public CuboidRegionSelector(@Nullable LocalWorld world, Vector pos1, Vector pos2) {
         this(world);
+        checkNotNull(world);
+        checkNotNull(pos1);
+        checkNotNull(pos2);
         this.pos1 = pos1.toBlockVector();
         this.pos2 = pos2.toBlockVector();
         region.setPos1(pos1);
         region.setPos2(pos2);
     }
 
+    @Override
     public boolean selectPrimary(Vector pos) {
         if (pos1 != null && (pos.compareTo(pos1) == 0)) {
             return false;
@@ -92,6 +114,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public boolean selectSecondary(Vector pos) {
         if (pos2 != null && (pos.compareTo(pos2)) == 0) {
             return false;
@@ -102,6 +125,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public void explainPrimarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         if (pos1 != null && pos2 != null) {
             player.print("First position set to " + pos1 + " (" + region.getArea() + ").");
@@ -112,6 +136,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         session.dispatchCUIEvent(player, new SelectionPointEvent(0, pos, getArea()));
     }
 
+    @Override
     public void explainSecondarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         if (pos1 != null && pos2 != null) {
             player.print("Second position set to " + pos2 + " (" + region.getArea() + ").");
@@ -122,6 +147,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         session.dispatchCUIEvent(player, new SelectionPointEvent(1, pos, getArea()));
     }
 
+    @Override
     public void explainRegionAdjust(LocalPlayer player, LocalSession session) {
         if (pos1 != null) {
             session.dispatchCUIEvent(player, new SelectionPointEvent(0, pos1, getArea()));
@@ -132,6 +158,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         }
     }
 
+    @Override
     public BlockVector getPrimaryPosition() throws IncompleteRegionException {
         if (pos1 == null) {
             throw new IncompleteRegionException();
@@ -140,10 +167,12 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         return pos1;
     }
 
+    @Override
     public boolean isDefined() {
         return pos1 != null && pos2 != null;
     }
 
+    @Override
     public CuboidRegion getRegion() throws IncompleteRegionException {
         if (pos1 == null || pos2 == null) {
             throw new IncompleteRegionException();
@@ -152,24 +181,29 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         return region;
     }
 
+    @Override
     public CuboidRegion getIncompleteRegion() {
         return region;
     }
 
+    @Override
     public void learnChanges() {
         pos1 = region.getPos1().toBlockVector();
         pos2 = region.getPos2().toBlockVector();
     }
 
+    @Override
     public void clear() {
         pos1 = null;
         pos2 = null;
     }
 
+    @Override
     public String getTypeName() {
         return "cuboid";
     }
 
+    @Override
     public List<String> getInformationLines() {
         final List<String> lines = new ArrayList<String>();
 
@@ -184,6 +218,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         return lines;
     }
 
+    @Override
     public int getArea() {
         if (pos1 == null) {
             return -1;
@@ -196,6 +231,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         return region.getArea();
     }
 
+    @Override
     public void describeCUI(LocalSession session, LocalPlayer player) {
         if (pos1 != null) {
             session.dispatchCUIEvent(player, new SelectionPointEvent(0, pos1, getArea()));
@@ -206,18 +242,22 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
         }
     }
 
+    @Override
     public void describeLegacyCUI(LocalSession session, LocalPlayer player) {
         describeCUI(session, player);
     }
 
+    @Override
     public int getProtocolVersion() {
         return 0;
     }
 
+    @Override
     public String getTypeID() {
         return "cuboid";
     }
 
+    @Override
     public String getLegacyTypeID() {
         return "cuboid";
     }

src/main/java/com/sk89q/worldedit/regions/selector/CylinderRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,36 +15,28 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
-import java.util.ArrayList;
+import com.sk89q.worldedit.*;
-import java.util.List;
+import com.sk89q.worldedit.internal.cui.*;
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.IncompleteRegionException;
-import com.sk89q.worldedit.LocalPlayer;
-import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.LocalWorld;
-import com.sk89q.worldedit.Vector;
-import com.sk89q.worldedit.Vector2D;
-import com.sk89q.worldedit.internal.cui.CUIRegion;
-import com.sk89q.worldedit.internal.cui.SelectionCylinderEvent;
-import com.sk89q.worldedit.internal.cui.SelectionMinMaxEvent;
-import com.sk89q.worldedit.internal.cui.SelectionPointEvent;
-import com.sk89q.worldedit.internal.cui.SelectionShapeEvent;
 import com.sk89q.worldedit.regions.CylinderRegion;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.regions.RegionSelector;
 
+import javax.annotation.Nullable;
 import java.text.NumberFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.google.common.base.Preconditions.checkNotNull;
 
 /**
- * Selector for polygonal regions.
+ * A {@link RegionSelector} for {@link CylinderRegion}s.
- *
- * @author sk89q
  */
-public class CylinderRegionSelector implements RegionSelector, CUIRegion {
+public class CylinderRegionSelector extends com.sk89q.worldedit.regions.CylinderRegionSelector implements RegionSelector, CUIRegion {
+
     protected CylinderRegion region;
     protected static final NumberFormat format;
 
@@ -53,12 +45,22 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         format.setMaximumFractionDigits(3);
     }
 
-    public CylinderRegionSelector(LocalWorld world) {
+    /**
+     * Create a new region selector.
+     *
+     * @param world the world
+     */
+    public CylinderRegionSelector(@Nullable LocalWorld world) {
         region = new CylinderRegion(world);
     }
 
+    /**
+     * Create a new selector from the given one.
+     *
+     * @param oldSelector the old selector
+     */
     public CylinderRegionSelector(RegionSelector oldSelector) {
-        this(oldSelector.getIncompleteRegion().getWorld());
+        this(checkNotNull(oldSelector).getIncompleteRegion().getWorld());
         if (oldSelector instanceof CylinderRegionSelector) {
             final CylinderRegionSelector cylSelector = (CylinderRegionSelector) oldSelector;
 
@@ -83,7 +85,16 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         }
     }
 
-    public CylinderRegionSelector(LocalWorld world, Vector2D center, Vector2D radius, int minY, int maxY) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param center the center
+     * @param radius the radius
+     * @param minY the minimum Y
+     * @param maxY the maximum Y
+     */
+    public CylinderRegionSelector(@Nullable LocalWorld world, Vector2D center, Vector2D radius, int minY, int maxY) {
         this(world);
 
         region.setCenter(center);
@@ -93,6 +104,7 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         region.setMaximumY(Math.max(minY, maxY));
     }
 
+    @Override
     public boolean selectPrimary(Vector pos) {
         if (!region.getCenter().equals(Vector.ZERO) && pos.compareTo(region.getCenter()) == 0) {
             return false;
@@ -105,6 +117,7 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public boolean selectSecondary(Vector pos) {
         Vector center = region.getCenter();
         if ((center.compareTo(Vector.ZERO)) == 0) {
@@ -120,12 +133,14 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public void explainPrimarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         player.print("Starting a new cylindrical selection at " + pos + ".");
 
         session.describeCUI(player);
     }
 
+    @Override
     public void explainSecondarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         Vector center = region.getCenter();
         if (!center.equals(Vector.ZERO)) {
@@ -138,10 +153,12 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         session.describeCUI(player);
     }
 
+    @Override
     public void explainRegionAdjust(LocalPlayer player, LocalSession session) {
         session.describeCUI(player);
     }
 
+    @Override
     public BlockVector getPrimaryPosition() throws IncompleteRegionException {
         if (!isDefined()) {
             throw new IncompleteRegionException();
@@ -150,6 +167,7 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         return region.getCenter().toBlockVector();
     }
 
+    @Override
     public CylinderRegion getRegion() throws IncompleteRegionException {
         if (!isDefined()) {
             throw new IncompleteRegionException();
@@ -158,25 +176,31 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         return region;
     }
 
+    @Override
     public CylinderRegion getIncompleteRegion() {
         return region;
     }
 
+    @Override
     public boolean isDefined() {
         return !region.getRadius().equals(Vector2D.ZERO);
     }
 
+    @Override
     public void learnChanges() {
     }
 
+    @Override
     public void clear() {
         region = new CylinderRegion(region.getWorld());
     }
 
+    @Override
     public String getTypeName() {
         return "Cylinder";
     }
 
+    @Override
     public List<String> getInformationLines() {
         final List<String> lines = new ArrayList<String>();
 
@@ -190,15 +214,18 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         return lines;
     }
 
+    @Override
     public int getArea() {
         return region.getArea();
     }
 
+    @Override
     public void describeCUI(LocalSession session, LocalPlayer player) {
         session.dispatchCUIEvent(player, new SelectionCylinderEvent(region.getCenter(), region.getRadius()));
         session.dispatchCUIEvent(player, new SelectionMinMaxEvent(region.getMinimumY(), region.getMaximumY()));
     }
 
+    @Override
     public void describeLegacyCUI(LocalSession session, LocalPlayer player) {
         if (isDefined()) {
             session.dispatchCUIEvent(player, new SelectionPointEvent(0, region.getMinimumPoint(), getArea()));
@@ -208,15 +235,19 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
         }
     }
 
+    @Override
     public int getProtocolVersion() {
         return 1;
     }
 
+    @Override
     public String getTypeID() {
         return "cylinder";
     }
 
+    @Override
     public String getLegacyTypeID() {
         return "cuboid";
     }
+
 }

src/main/java/com/sk89q/worldedit/regions/selector/EllipsoidRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,18 +15,11 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
-import java.util.ArrayList;
+import com.sk89q.worldedit.*;
-import java.util.List;
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.IncompleteRegionException;
-import com.sk89q.worldedit.LocalPlayer;
-import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.LocalWorld;
-import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.internal.cui.CUIRegion;
 import com.sk89q.worldedit.internal.cui.SelectionEllipsoidPointEvent;
 import com.sk89q.worldedit.internal.cui.SelectionPointEvent;
@@ -34,24 +27,42 @@ import com.sk89q.worldedit.regions.EllipsoidRegion;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.regions.RegionSelector;
 
+import javax.annotation.Nullable;
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
- * Selector for ellipsoids.
+ * A {@link RegionSelector} for {@link EllipsoidRegion}s.
- *
- * @author TomyLobo
  */
-public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
+public class EllipsoidRegionSelector extends com.sk89q.worldedit.regions.EllipsoidRegionSelector implements RegionSelector, CUIRegion {
+
     protected EllipsoidRegion region;
 
-    public EllipsoidRegionSelector(LocalWorld world) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     */
+    public EllipsoidRegionSelector(@Nullable LocalWorld world) {
         region = new EllipsoidRegion(world, new Vector(), new Vector());
     }
 
+    /**
+     * Create a new selector.
+     */
     public EllipsoidRegionSelector() {
         this((LocalWorld) null);
     }
 
+    /**
+     * Create a new selector from the given selector.
+     *
+     * @param oldSelector the old selector
+     */
     public EllipsoidRegionSelector(RegionSelector oldSelector) {
-        this(oldSelector.getIncompleteRegion().getWorld());
+        this(checkNotNull(oldSelector).getIncompleteRegion().getWorld());
         if (oldSelector instanceof EllipsoidRegionSelector) {
             final EllipsoidRegionSelector ellipsoidRegionSelector = (EllipsoidRegionSelector) oldSelector;
 
@@ -73,13 +84,21 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         }
     }
 
-    public EllipsoidRegionSelector(LocalWorld world, Vector center, Vector radius) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param center the center
+     * @param radius the radius
+     */
+    public EllipsoidRegionSelector(@Nullable LocalWorld world, Vector center, Vector radius) {
         this(world);
 
         region.setCenter(center);
         region.setRadius(radius);
     }
 
+    @Override
     public boolean selectPrimary(Vector pos) {
         if (pos.equals(region.getCenter()) && region.getRadius().lengthSq() == 0) {
             return false;
@@ -90,6 +109,7 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public boolean selectSecondary(Vector pos) {
         final Vector diff = pos.subtract(region.getCenter());
         final Vector minRadius = Vector.getMaximum(diff, diff.multiply(-1.0));
@@ -97,6 +117,7 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public void explainPrimarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         if (isDefined()) {
             player.print("Center position set to " + region.getCenter() + " (" + region.getArea() + ").");
@@ -107,6 +128,7 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         session.describeCUI(player);
     }
 
+    @Override
     public void explainSecondarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         if (isDefined()) {
             player.print("Radius set to " + region.getRadius() + " (" + region.getArea() + ").");
@@ -117,14 +139,17 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         session.describeCUI(player);
     }
 
+    @Override
     public void explainRegionAdjust(LocalPlayer player, LocalSession session) {
         session.describeCUI(player);
     }
 
+    @Override
     public boolean isDefined() {
         return region.getRadius().lengthSq() > 0;
     }
 
+    @Override
     public EllipsoidRegion getRegion() throws IncompleteRegionException {
         if (!isDefined()) {
             throw new IncompleteRegionException();
@@ -133,22 +158,27 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         return region;
     }
 
+    @Override
     public EllipsoidRegion getIncompleteRegion() {
         return region;
     }
 
+    @Override
     public void learnChanges() {
     }
 
+    @Override
     public void clear() {
         region.setCenter(new Vector());
         region.setRadius(new Vector());
     }
 
+    @Override
     public String getTypeName() {
         return "ellipsoid";
     }
 
+    @Override
     public List<String> getInformationLines() {
         final List<String> lines = new ArrayList<String>();
 
@@ -165,28 +195,34 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
         return lines;
     }
 
+    @Override
     public int getArea() {
         return region.getArea();
     }
 
+    @Override
     public void describeCUI(LocalSession session, LocalPlayer player) {
         session.dispatchCUIEvent(player, new SelectionEllipsoidPointEvent(0, region.getCenter()));
         session.dispatchCUIEvent(player, new SelectionEllipsoidPointEvent(1, region.getRadius()));
     }
 
+    @Override
     public void describeLegacyCUI(LocalSession session, LocalPlayer player) {
         session.dispatchCUIEvent(player, new SelectionPointEvent(0, region.getMinimumPoint(), getArea()));
         session.dispatchCUIEvent(player, new SelectionPointEvent(1, region.getMaximumPoint(), getArea()));
     }
 
+    @Override
     public String getLegacyTypeID() {
         return "cuboid";
     }
 
+    @Override
     public int getProtocolVersion() {
         return 1;
     }
 
+    @Override
     public String getTypeID() {
         return "ellipsoid";
     }
@@ -195,4 +231,5 @@ public class EllipsoidRegionSelector implements RegionSelector, CUIRegion {
     public BlockVector getPrimaryPosition() throws IncompleteRegionException {
         return region.getCenter().toBlockVector();
     }
+
 }

src/main/java/com/sk89q/worldedit/regions/selector/ExtendingCuboidRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,27 +15,36 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
-import com.sk89q.worldedit.BlockVector;
+import com.sk89q.worldedit.*;
-import com.sk89q.worldedit.LocalPlayer;
+import com.sk89q.worldedit.regions.CuboidRegion;
-import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.LocalWorld;
-import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.regions.RegionSelector;
 
+import javax.annotation.Nullable;
+
 /**
- * Alternative selector for cuboids.
+ * A {@link RegionSelector} for {@link CuboidRegion}s that enlarges the
- *
+ * region with every secondary selection.
- * @author sk89q
  */
 public class ExtendingCuboidRegionSelector extends CuboidRegionSelector {
-    public ExtendingCuboidRegionSelector(LocalWorld world) {
+
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     */
+    public ExtendingCuboidRegionSelector(@Nullable LocalWorld world) {
         super(world);
     }
 
+    /**
+     * Create a new selector from another one.
+     *
+     * @param oldSelector the other selector
+     */
     public ExtendingCuboidRegionSelector(RegionSelector oldSelector) {
         super(oldSelector);
 
@@ -49,7 +58,14 @@ public class ExtendingCuboidRegionSelector extends CuboidRegionSelector {
         region.setPos2(pos2);
     }
 
-    public ExtendingCuboidRegionSelector(LocalWorld world, Vector pos1, Vector pos2) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param pos1 the first position
+     * @param pos2 the second position
+     */
+    public ExtendingCuboidRegionSelector(@Nullable LocalWorld world, Vector pos1, Vector pos2) {
         this(world);
         pos1 = Vector.getMinimum(pos1,  pos2);
         pos2 = Vector.getMaximum(pos1,  pos2);
@@ -114,4 +130,5 @@ public class ExtendingCuboidRegionSelector extends CuboidRegionSelector {
 
         explainRegionAdjust(player, session);
     }
+
 }

src/main/java/com/sk89q/worldedit/regions/selector/Polygonal2DRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,19 +15,11 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
-import java.util.Collections;
+import com.sk89q.worldedit.*;
-import java.util.List;
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.BlockVector2D;
-import com.sk89q.worldedit.IncompleteRegionException;
-import com.sk89q.worldedit.LocalPlayer;
-import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.LocalWorld;
-import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.internal.cui.CUIRegion;
 import com.sk89q.worldedit.internal.cui.SelectionMinMaxEvent;
 import com.sk89q.worldedit.internal.cui.SelectionPoint2DEvent;
@@ -36,33 +28,56 @@ import com.sk89q.worldedit.regions.Polygonal2DRegion;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.regions.RegionSelector;
 
+import javax.annotation.Nullable;
+import java.util.Collections;
+import java.util.List;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
- * Selector for polygonal regions.
+ * A {@link RegionSelector} for {@link Polygonal2DRegion}s.
- *
- * @author sk89q
  */
-public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
+public class Polygonal2DRegionSelector extends com.sk89q.worldedit.regions.Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
+
     private int maxPoints;
     private BlockVector pos1;
     private Polygonal2DRegion region;
 
+    /**
+     * @deprecated Use {@link #Polygonal2DRegionSelector(LocalWorld, int)}
+     */
     @Deprecated
-    public Polygonal2DRegionSelector(LocalWorld world) {
+    public Polygonal2DRegionSelector(@Nullable LocalWorld world) {
         this(world, 50);
     }
 
-    public Polygonal2DRegionSelector(LocalWorld world, int maxPoints) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param maxPoints the maximum number of points
+     */
+    public Polygonal2DRegionSelector(@Nullable LocalWorld world, int maxPoints) {
         this.maxPoints = maxPoints;
         region = new Polygonal2DRegion(world);
     }
 
+    /**
+     * @deprecated Use {@link #Polygonal2DRegionSelector(RegionSelector, int)}
+     */
     @Deprecated
     public Polygonal2DRegionSelector(RegionSelector oldSelector) {
         this(oldSelector, 50);
     }
 
+    /**
+     * Create a new selector from another one.
+     *
+     * @param oldSelector the old selector
+     * @param maxPoints the maximum number of points
+     */
     public Polygonal2DRegionSelector(RegionSelector oldSelector, int maxPoints) {
-        this(oldSelector.getIncompleteRegion().getWorld(), maxPoints);
+        this(checkNotNull(oldSelector).getIncompleteRegion().getWorld(), maxPoints);
         if (oldSelector instanceof Polygonal2DRegionSelector) {
             final Polygonal2DRegionSelector polygonal2DRegionSelector = (Polygonal2DRegionSelector) oldSelector;
 
@@ -86,12 +101,23 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         }
     }
 
-    public Polygonal2DRegionSelector(LocalWorld world, List<BlockVector2D> points, int minY, int maxY) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param points a list of points
+     * @param minY the minimum Y
+     * @param maxY the maximum Y
+     */
+    public Polygonal2DRegionSelector(@Nullable LocalWorld world, List<BlockVector2D> points, int minY, int maxY) {
+        checkNotNull(points);
+        
         final BlockVector2D pos2D = points.get(0);
         pos1 = new BlockVector(pos2D.getX(), minY, pos2D.getZ());
         region = new Polygonal2DRegion(world, points, minY, maxY);
     }
 
+    @Override
     public boolean selectPrimary(Vector pos) {
         if (pos.equals(pos1)) {
             return false;
@@ -105,6 +131,7 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public boolean selectSecondary(Vector pos) {
         if (region.size() > 0) {
             final List<BlockVector2D> points = region.getPoints();
@@ -125,6 +152,7 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         return true;
     }
 
+    @Override
     public void explainPrimarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         player.print("Starting a new polygon at " + pos + ".");
 
@@ -133,6 +161,7 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         session.dispatchCUIEvent(player, new SelectionMinMaxEvent(region.getMinimumY(), region.getMaximumY()));
     }
 
+    @Override
     public void explainSecondarySelection(LocalPlayer player, LocalSession session, Vector pos) {
         player.print("Added point #" + region.size() + " at " + pos + ".");
 
@@ -140,11 +169,13 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         session.dispatchCUIEvent(player, new SelectionMinMaxEvent(region.getMinimumY(), region.getMaximumY()));
     }
 
+    @Override
     public void explainRegionAdjust(LocalPlayer player, LocalSession session) {
         session.dispatchCUIEvent(player, new SelectionShapeEvent(getTypeID()));
         describeCUI(session, player);
     }
 
+    @Override
     public BlockVector getPrimaryPosition() throws IncompleteRegionException {
         if (pos1 == null) {
             throw new IncompleteRegionException();
@@ -153,6 +184,7 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         return pos1;
     }
 
+    @Override
     public Polygonal2DRegion getRegion() throws IncompleteRegionException {
         if (!isDefined()) {
             throw new IncompleteRegionException();
@@ -161,40 +193,54 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         return region;
     }
 
+    @Override
     public Polygonal2DRegion getIncompleteRegion() {
         return region;
     }
 
+    @Override
     public boolean isDefined() {
         return region.size() > 2;
     }
 
+    @Override
     public void learnChanges() {
         BlockVector2D pt = region.getPoints().get(0);
         pos1 = new BlockVector(pt.getBlockX(), region.getMinimumPoint().getBlockY(), pt.getBlockZ());
     }
 
+    @Override
     public void clear() {
         pos1 = null;
         region = new Polygonal2DRegion(region.getWorld());
     }
 
+    @Override
     public String getTypeName() {
         return "2Dx1D polygon";
     }
 
+    @Override
     public List<String> getInformationLines() {
         return Collections.singletonList("# points: " + region.size());
     }
 
+    @Override
     public int getArea() {
         return region.getArea();
     }
 
+    /**
+     * Get the number of points.
+     *
+     * @return the number of points
+     */
+    @Override
     public int getPointCount() {
         return region.getPoints().size();
     }
 
+    @Override
     public void describeCUI(LocalSession session, LocalPlayer player) {
         final List<BlockVector2D> points = region.getPoints();
         for (int id = 0; id < points.size(); id++) {
@@ -204,19 +250,24 @@ public class Polygonal2DRegionSelector implements RegionSelector, CUIRegion {
         session.dispatchCUIEvent(player, new SelectionMinMaxEvent(region.getMinimumY(), region.getMaximumY()));
     }
 
+    @Override
     public void describeLegacyCUI(LocalSession session, LocalPlayer player) {
         describeCUI(session, player);
     }
 
+    @Override
     public int getProtocolVersion() {
         return 0;
     }
 
+    @Override
     public String getTypeID() {
         return "polygon2d";
     }
 
+    @Override
     public String getLegacyTypeID() {
         return "polygon2d";
     }
+
 }

src/main/java/com/sk89q/worldedit/regions/selector/SphereRegionSelector.java

@@ -1,7 +1,7 @@
-// $Id$
 /*
- * WorldEdit
+ * WorldEdit, a Minecraft world manipulation toolkit
- * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com> and contributors
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+ */
 
 package com.sk89q.worldedit.regions.selector;
 
@@ -25,20 +25,34 @@ import com.sk89q.worldedit.LocalWorld;
 import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.regions.RegionSelector;
 
+import javax.annotation.Nullable;
+
 /**
- * Selector for spheres.
+ * A {@link RegionSelector} for {@link SphereRegionSelector}s.
- *
- * @author TomyLobo
  */
 public class SphereRegionSelector extends EllipsoidRegionSelector {
-    public SphereRegionSelector(LocalWorld world) {
+
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     */
+    public SphereRegionSelector(@Nullable LocalWorld world) {
         super(world);
     }
 
+    /**
+     * Create a new selector.
+     */
     public SphereRegionSelector() {
         super();
     }
 
+    /**
+     * Create a new selector from another one
+     *
+     * @param oldSelector the old selector
+     */
     public SphereRegionSelector(RegionSelector oldSelector) {
         super(oldSelector);
         final Vector radius = region.getRadius();
@@ -46,7 +60,14 @@ public class SphereRegionSelector extends EllipsoidRegionSelector {
         region.setRadius(new Vector(radiusScalar, radiusScalar, radiusScalar));
     }
 
-    public SphereRegionSelector(LocalWorld world, Vector center, int radius) {
+    /**
+     * Create a new selector.
+     *
+     * @param world the world
+     * @param center the center position
+     * @param radius the radius
+     */
+    public SphereRegionSelector(@Nullable LocalWorld world, Vector center, int radius) {
         super(world, center, new Vector(radius, radius, radius));
     }
 
@@ -73,4 +94,5 @@ public class SphereRegionSelector extends EllipsoidRegionSelector {
     public String getTypeName() {
         return "sphere";
     }
+
 }