Added Regions class with utility methods.

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

@@ -0,0 +1,92 @@
+/*
+ * 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;
+
+/**
+ * Utility methods relating to {@link Region}s.
+ */
+public final class Regions {
+
+    private Regions() {
+    }
+
+    /**
+     * Get the minimum Y coordinate of the given region using the region's
+     * {@link Region#getMinimumPoint()} method.
+     *
+     * @param region the region
+     * @return the Y coordinate
+     */
+    public static double minimumY(Region region) {
+        return region.getMinimumPoint().getY();
+    }
+
+    /**
+     * Get the maximum Y coordinate of the given region using the region's
+     * {@link Region#getMaximumPoint()} method.
+     *
+     * @param region the region
+     * @return the Y coordinate
+     */
+    public static double maximumY(Region region) {
+        return region.getMaximumPoint().getY();
+    }
+
+    /**
+     * Get the minimum Y coordinate of the given region using the region's
+     * {@link Region#getMinimumPoint()} method.
+     *
+     * @param region the region
+     * @return the Y coordinate
+     */
+    public static int minimumBlockY(Region region) {
+        return region.getMinimumPoint().getBlockY();
+    }
+
+    /**
+     * Get the maximum Y coordinate of the given region using the region's
+     * {@link Region#getMaximumPoint()} method.
+     *
+     * @param region the region
+     * @return the Y coordinate
+     */
+    public static int maximumBlockY(Region region) {
+        return region.getMaximumPoint().getBlockY();
+    }
+
+    /**
+     * Attempt to get a {@link FlatRegion} from the given region.
+     * </p>
+     * If the given region is already a {@link FlatRegion}, then the region
+     * will be cast and returned. Otherwise, a new {@link CuboidRegion} will
+     * be created covers the provided region's minimum and maximum extents.
+     *
+     * @param region the region
+     * @return a flat region
+     */
+    public static FlatRegion asFlatRegion(Region region) {
+        if (region instanceof FlatRegion) {
+            return (FlatRegion) region;
+        } else {
+            return CuboidRegion.makeCuboid(region);
+        }
+    }
+
+}