QuadCoal

package com.nappo.bukkit;

import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.Event;
import org.bukkit.event.Event.Priority;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.block.BlockListener;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

/**
 * Coal plugin, which adds 3 more coal.
 * @author Canownueasy
 */
public class CoalPlugin extends JavaPlugin {

    @Override
    public void onDisable() {}

    @Override
    public void onEnable() {
        PluginManager pm = getServer().getPluginManager();

        pm.registerEvent(Event.Type.BLOCK_BREAK, new BlockListener() {
            @Override
            public void onBlockBreak(BlockBreakEvent event) {
                if(event.getBlock().getType().equals(Material.COAL_ORE)) {
                    Player player = event.getPlayer(); // The player who mined the coal.
                    player.getWorld().dropItemNaturally(event.getBlock().getLocation(), new ItemStack(Material.COAL,3));
                }
            }
        }, Priority.Normal, this);
    }

}