Guns.java

package me.pogostick29.guns;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.entity.Fireball;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Guns extends JavaPlugin implements Listener {

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

    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent e) {
        if (!(e.getAction() == Action.RIGHT_CLICK_AIR)) return;

        if (!(e.getItem().getType() == Material.IRON_SPADE)) return;

        Fireball f = e.getPlayer().launchProjectile(Fireball.class);
        f.setIsIncendiary(false);
        f.setYield(0);
    }

    @EventHandler
    public void onEntityDamage(EntityDamageByEntityEvent e) {
        if (e.getDamager() instanceof Fireball) {
            Fireball f = (Fireball) e.getDamager();
            if (f.getShooter() instanceof Player) {
                Player shooter = (Player) f.getShooter();
                if (shooter.getItemInHand().getType() == Material.IRON_SPADE) {
                    e.setDamage(10.0);
                }
            }
        }
    }
}