Custom operations are now possible!

src/main/java/me/youhavetrouble/blockedit/api/BlockEditAPI.java

@@ -0,0 +1,21 @@
+package me.youhavetrouble.blockedit.api;
+
+import me.youhavetrouble.blockedit.WorkSplitter;
+import me.youhavetrouble.blockedit.util.ChunkWork;
+import me.youhavetrouble.blockedit.util.Selection;
+
+import java.util.HashSet;
+
+public class BlockEditAPI {
+
+    /**
+     * @param selection The area that will be operated on
+     * @param chunksPerTick Amount of chunks per tick to modify
+     * @param operation Operation to execute
+     */
+    public static void runOperation(Selection selection, int chunksPerTick, BlockEditOperation operation) {
+        HashSet<ChunkWork> work = WorkSplitter.getOperatedOnChunks(selection);
+        WorkSplitter.runOperation(work, selection, chunksPerTick, operation);
+    }
+
+}

src/main/java/me/youhavetrouble/blockedit/api/BlockEditOperation.java

@@ -0,0 +1,13 @@
+package me.youhavetrouble.blockedit.api;
+
+import org.bukkit.block.Block;
+
+public interface BlockEditOperation {
+
+    /**
+     * This function will run for every block in the selection it is executed on.
+     * @param block Current block.
+     */
+    void transformBlock(Block block);
+
+}