Moved Vector.dot further up in the file and added Vector.cross.

src/main/java/com/sk89q/worldedit/Vector.java

@@ -485,6 +485,30 @@ public class Vector {
         return divide(length());
     }
 
+    /**
+     * Gets the dot product of this and another vector.
+     *
+     * @param other
+     * @return the dot product of this and the other vector
+     */
+    public double dot(Vector other) {
+        return x * other.x + y * other.y + z * other.z;
+    }
+
+    /**
+     * Gets the dot product of this and another vector.
+     *
+     * @param other
+     * @return the dot product of this and the other vector
+     */
+    public Vector cross(Vector other) {
+        return new Vector(
+            y * other.z + z * other.y,
+            z * other.x + x * other.z,
+            x * other.y + y * other.x
+        );
+    }
+
     /**
      * Checks to see if a vector is contained with another.
      *
@@ -628,16 +652,6 @@ public class Vector {
         return new Vector2D(x, z);
     }
 
-    /**
-     * Gets the dot product of this and another vector.
-     *
-     * @param other
-     * @return the dot product of this and the other vector
-     */
-    public double dot(Vector other) {
-        return x * other.x + y * other.y + z * other.z;
-    }
-
     /**
      * Gets the minimum components of two vectors.
      *