AntiTree, micro-plugin for Bukkit 1.7

AntiTree.java

package org.dyndns.mcmonkey4eva.antitree;


import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.plugin.java.JavaPlugin;

// Trees can be used to break bedrock in MC 1.7
// This plugin blocks trees being placed so far down.
// Download precompiled jar: https://dl.dropboxusercontent.com/u/54130586/antitree.jar

public class AntiTree extends JavaPlugin implements Listener {

    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
    }

    @EventHandler
    public void onBlockPlace(BlockPlaceEvent event) {
        if (event.getItemInHand().getType() == Material.SAPLING) {
            boolean bedRocked = false;
            if (event.getBlock().getLocation().getY() < 11) {
                bedRocked = true;
            }
            else {
                fullLoop:
                for (int x = -15; x < 15; x++) {
                    for (int y = -15; y < 15; y++) {
                        for (int z = -15; z < 15; z++) {
                            if (event.getBlock().getLocation().clone().add(x, y, z).getBlock().getType().equals(Material.BEDROCK)) {
                                bedRocked = true;
                                break fullLoop;
                            }
                        }
                    }
                }
            }
            if (bedRocked) {
                event.getPlayer().sendMessage(ChatColor.RED + "You cannot place trees so close to bedrock!");
                event.setCancelled(true);
            }
        }
    }
}