@Override
public void onBlockPistonExtend(BlockPistonExtendEvent event) {
if (event.isCancelled()) return;
/* Call listeners */
List<Listener> ll = event_handlers.get(event.getType());
if (ll != null) {
for (Listener l : ll) {
((BlockListener) l).onBlockPistonExtend(event);
}
}
}
