Aded BlockReplace, which replaces blocks with a pattern.

src/main/java/com/sk89q/worldedit/operation/BlockReplace.java

@@ -0,0 +1,52 @@
+/*
+ * 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.operation;
+
+import com.sk89q.worldedit.EditSession;
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.WorldEditException;
+import com.sk89q.worldedit.masks.Mask;
+import com.sk89q.worldedit.patterns.Pattern;
+
+/**
+ * Replaces blocks with the given pattern.
+ */
+public class BlockReplace implements RegionFunction {
+
+    private final EditSession editSession;
+    private Pattern pattern;
+
+    /**
+     * Create a new instance.
+     *
+     * @param editSession the edit session
+     * @param pattern a pattern
+     */
+    public BlockReplace(EditSession editSession, Pattern pattern) {
+        this.editSession = editSession;
+        this.pattern = pattern;
+    }
+
+    @Override
+    public boolean apply(Vector position) throws WorldEditException {
+        return editSession.setBlock(position, pattern.next(position));
+    }
+
+}