Add a new block metadata framework and fix //rotate and //flip.

Remove the previous Mapping interfaces.

src/main/java/com/sk89q/worldedit/math/MathUtils.java

@@ -24,6 +24,15 @@ package com.sk89q.worldedit.math;
  */
 public final class MathUtils {
 
+    /**
+     * Safe minimum, such that 1 / SAFE_MIN does not overflow.
+     * <p>
+     * In IEEE 754 arithmetic, this is also the smallest normalized number
+     * 2<sup>-1022</sup>. The value of this constant is from Apache Commons
+     * Math 2.2.
+     */
+    public static final double SAFE_MIN = 0x1.0p-1022;
+
     private MathUtils() {
     }
 

src/main/java/com/sk89q/worldedit/math/transform/AffineTransform.java

@@ -292,6 +292,10 @@ public class AffineTransform implements Transform {
                 vector.getX() * m20 + vector.getY() * m21 + vector.getZ() * m22 + m23);
     }
 
+    public AffineTransform combine(AffineTransform other) {
+        return concatenate(other);
+    }
+
     @Override
     public Transform combine(Transform other) {
         if (other instanceof AffineTransform) {
@@ -305,4 +309,6 @@ public class AffineTransform implements Transform {
     public String toString() {
         return String.format("Affine[%g %g %g %g, %g %g %g %g, %g %g %g %g]}", m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23);
     }
+
+
 }

src/main/java/com/sk89q/worldedit/math/transform/Transform.java

@@ -19,13 +19,20 @@
 
 package com.sk89q.worldedit.math.transform;
 
-import com.google.common.base.Function;
 import com.sk89q.worldedit.Vector;
 
 /**
  * Makes a transformation of {@link Vector}s.
  */
-public interface Transform extends Function<Vector, Vector> {
+public interface Transform {
+
+    /**
+     * Returns the result of applying the function to the input.
+     *
+     * @param input the input
+     * @return the result
+     */
+    Vector apply(Vector input);
 
     /**
      * Create a new inverse transform.