Refactor vector system to be cleaner

- Move Vector, etc. into `.math` package
- Drop many methods that will be auto-promoted anyways, eg. with
`divide(int)` and `divide(double)` the first is now gone.
- Take Block vectors into their own class hierarchy
- Make it clear throughout the API what takes blockvectors
- many more improvements

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

@@ -21,13 +21,13 @@ package com.sk89q.worldedit.session;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-import com.sk89q.worldedit.Vector;
 import com.sk89q.worldedit.extent.Extent;
 import com.sk89q.worldedit.extent.clipboard.Clipboard;
 import com.sk89q.worldedit.extent.transform.BlockTransformExtent;
 import com.sk89q.worldedit.function.mask.ExistingBlockMask;
 import com.sk89q.worldedit.function.operation.ForwardExtentCopy;
 import com.sk89q.worldedit.function.operation.Operation;
+import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.math.transform.Transform;
 
 /**
@@ -39,7 +39,7 @@ public class PasteBuilder {
     private final Transform transform;
     private final Extent targetExtent;
 
-    private Vector to = new Vector();
+    private BlockVector3 to = BlockVector3.ZERO;
     private boolean ignoreAirBlocks;
 
     /**
@@ -62,7 +62,7 @@ public class PasteBuilder {
      * @param to the target location
      * @return this builder instance
      */
-    public PasteBuilder to(Vector to) {
+    public PasteBuilder to(BlockVector3 to) {
         this.to = to;
         return this;
     }

worldedit-core/src/main/java/com/sk89q/worldedit/session/request/RequestSelection.java

@@ -19,12 +19,11 @@
 
 package com.sk89q.worldedit.session.request;
 
-import com.sk89q.worldedit.BlockVector;
-import com.sk89q.worldedit.BlockVector2D;
 import com.sk89q.worldedit.IncompleteRegionException;
 import com.sk89q.worldedit.LocalSession;
-import com.sk89q.worldedit.Vector;
-import com.sk89q.worldedit.Vector2D;
+import com.sk89q.worldedit.math.BlockVector2;
+import com.sk89q.worldedit.math.BlockVector3;
+import com.sk89q.worldedit.math.Vector3;
 import com.sk89q.worldedit.regions.NullRegion;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.regions.RegionOperationException;
@@ -64,17 +63,17 @@ public class RequestSelection implements Region {
     }
 
     @Override
-    public Vector getMinimumPoint() {
+    public BlockVector3 getMinimumPoint() {
         return getRegion().getMinimumPoint();
     }
 
     @Override
-    public Vector getMaximumPoint() {
+    public BlockVector3 getMaximumPoint() {
         return getRegion().getMaximumPoint();
     }
 
     @Override
-    public Vector getCenter() {
+    public Vector3 getCenter() {
         return getRegion().getCenter();
     }
 
@@ -99,32 +98,32 @@ public class RequestSelection implements Region {
     }
 
     @Override
-    public void expand(Vector... changes) throws RegionOperationException {
+    public void expand(BlockVector3... changes) throws RegionOperationException {
         getRegion().expand(changes);
     }
 
     @Override
-    public void contract(Vector... changes) throws RegionOperationException {
+    public void contract(BlockVector3... changes) throws RegionOperationException {
         getRegion().contract(changes);
     }
 
     @Override
-    public void shift(Vector change) throws RegionOperationException {
+    public void shift(BlockVector3 change) throws RegionOperationException {
         getRegion().shift(change);
     }
 
     @Override
-    public boolean contains(Vector position) {
+    public boolean contains(BlockVector3 position) {
         return getRegion().contains(position);
     }
 
     @Override
-    public Set<Vector2D> getChunks() {
+    public Set<BlockVector2> getChunks() {
         return getRegion().getChunks();
     }
 
     @Override
-    public Set<Vector> getChunkCubes() {
+    public Set<BlockVector3> getChunkCubes() {
         return getRegion().getChunkCubes();
     }
 
@@ -144,12 +143,12 @@ public class RequestSelection implements Region {
     }
 
     @Override
-    public List<BlockVector2D> polygonize(int maxPoints) {
+    public List<BlockVector2> polygonize(int maxPoints) {
         return getRegion().polygonize(maxPoints);
     }
 
     @Override
-    public Iterator<BlockVector> iterator() {
+    public Iterator<BlockVector3> iterator() {
         return getRegion().iterator();
     }