Added Pattern.next(int, int, int).

This method can be used to avoid creating short-lived vectors in tight loops.

src/main/java/com/sk89q/worldedit/patterns/ClipboardPattern.java

@@ -54,10 +54,22 @@ public class ClipboardPattern implements Pattern {
      * @return
      */
     public BaseBlock next(Vector pos) {
-        int x = Math.abs(pos.getBlockX()) % size.getBlockX();
-        int y = Math.abs(pos.getBlockY()) % size.getBlockY();
-        int z = Math.abs(pos.getBlockZ()) % size.getBlockZ();
+        return next(pos.getBlockX(), pos.getBlockY(), pos.getBlockZ());
+    }
 
-        return clipboard.getPoint(new Vector(x, y, z));
+    /**
+     * Get next block.
+     *
+     * @param x
+     * @param y
+     * @param z
+     * @return
+     */
+    public BaseBlock next(int x, int y, int z) {
+        int xp = Math.abs(x) % size.getBlockX();
+        int yp = Math.abs(y) % size.getBlockY();
+        int zp = Math.abs(z) % size.getBlockZ();
+
+        return clipboard.getPoint(new Vector(xp, yp, zp));
     }
 }

src/main/java/com/sk89q/worldedit/patterns/Pattern.java

@@ -37,4 +37,13 @@ public interface Pattern {
      * @return
      */
     public BaseBlock next(Vector pos);
+
+    /**
+     * Get a block for a position. This return value of this method does
+     * not have to be consistent for the same position.
+     *
+     * @param pos
+     * @return
+     */
+    public BaseBlock next(int x, int y, int z);
 }

src/main/java/com/sk89q/worldedit/patterns/RandomFillPattern.java

@@ -82,4 +82,8 @@ public class RandomFillPattern implements Pattern {
 
         throw new RuntimeException("ProportionalFillPattern");
     }
+
+    public BaseBlock next(int x, int y, int z) {
+        return next(null);
+    }
 }

src/main/java/com/sk89q/worldedit/patterns/SingleBlockPattern.java

@@ -52,6 +52,10 @@ public class SingleBlockPattern implements Pattern {
         return block;
     }
 
+    public BaseBlock next(int x, int y, int z) {
+        return block;
+    }
+
     /**
      * Get the block.
      *