Added ServerInterface.schedule(delay, period, task).

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

@@ -44,4 +44,17 @@ public abstract class ServerInterface {
      * Reload WorldEdit configuration.
      */
     public abstract void reload();
+
+    /**
+     * Schedules the given <code>task</code> to be invoked once every <code>period</code> ticks
+     * after an initial delay of <code>delay</code> ticks.
+     *
+     * @param delay Delay in server ticks before executing first repeat
+     * @param period Period in server ticks of the task
+     * @param task Task to be executed
+     * @return Task id number (-1 if scheduling failed)
+     */
+    public int schedule(long delay, long period, Runnable task) {
+        return -1;
+    }
 }

src/main/java/com/sk89q/worldedit/bukkit/BukkitServerInterface.java

@@ -48,4 +48,8 @@ public class BukkitServerInterface extends ServerInterface {
         plugin.loadConfiguration();
     }
 
+    @Override
+    public int schedule(long delay, long period, Runnable task) {
+        return Bukkit.getScheduler().scheduleSyncRepeatingTask(plugin, task, delay, period);
+    }
 }