import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
@SuppressWarnings("unchecked")
public <T extends Projectile> T launchProjectile(Class<? extends T> projectile, Vector velocity) {
    net.minecraft.world.World world = ((CraftWorld) getWorld()).getHandle();
    net.minecraft.entity.Entity launch = null;

    if (Snowball.class.isAssignableFrom(projectile)) {
        launch = new net.minecraft.entity.projectile.EntitySnowball(world, getHandle());
    } else if (Egg.class.isAssignableFrom(projectile)) {
        launch = new net.minecraft.entity.projectile.EntityEgg(world, getHandle());
    } else if (EnderPearl.class.isAssignableFrom(projectile)) {
        launch = new net.minecraft.entity.item.EntityEnderPearl(world, getHandle());
    } else if (Arrow.class.isAssignableFrom(projectile)) {
        launch = new net.minecraft.entity.projectile.EntityArrow(world, getHandle(), 1);
    } else if (ThrownPotion.class.isAssignableFrom(projectile)) {
        launch = new net.minecraft.entity.projectile.EntityPotion(world, getHandle(), CraftItemStack.asNMSCopy(new ItemStack(Material.POTION, 1)));
    } else if (ThrownExpBottle.class.isAssignableFrom(projectile)) {
        launch = new net.minecraft.entity.item.EntityExpBottle(world, getHandle());
    } else if (Fish.class.isAssignableFrom(projectile) && getHandle() instanceof net.minecraft.entity.player.EntityPlayer) {
        launch = new net.minecraft.entity.projectile.EntityFishHook(world, (net.minecraft.entity.player.EntityPlayer) getHandle());
    } else if (Fireball.class.isAssignableFrom(projectile)) {
        Location location = getEyeLocation();
        Vector direction = location.getDirection().multiply(10);

        if (SmallFireball.class.isAssignableFrom(projectile)) {
            launch = new net.minecraft.entity.projectile.EntitySmallFireball(world, getHandle(), direction.getX(), direction.getY(), direction.getZ());
        } else if (WitherSkull.class.isAssignableFrom(projectile)) {
            launch = new net.minecraft.entity.projectile.EntityWitherSkull(world, getHandle(), direction.getX(), direction.getY(), direction.getZ());
        } else {
            launch = new net.minecraft.entity.projectile.EntityLargeFireball(world, getHandle(), direction.getX(), direction.getY(), direction.getZ());
        }

        ((net.minecraft.entity.projectile.EntityFireball) launch).projectileSource = this;
        launch.setLocationAndAngles(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch());
    }

    Validate.notNull(launch, "Projectile not supported");

    if (velocity != null) {
        ((T) launch.getBukkitEntity()).setVelocity(velocity);
    }

    world.spawnEntityInWorld(launch);
    return (T) launch.getBukkitEntity();
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
public static ExpBottleEvent callExpBottleEvent(net.minecraft.entity.Entity entity, int exp) {
    ThrownExpBottle bottle = (ThrownExpBottle) entity.getBukkitEntity();
    ExpBottleEvent event = new ExpBottleEvent(bottle, exp);
    Bukkit.getPluginManager().callEvent(event);
    return event;
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
public ExpBottleEvent(final ThrownExpBottle bottle, final int exp) {
    super(bottle);
    this.exp = exp;
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
@Override
public ThrownExpBottle getEntity() {
    return (ThrownExpBottle) entity;
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
public static ExpBottleEvent callExpBottleEvent(Entity entity, int exp) {
    ThrownExpBottle bottle = (ThrownExpBottle) entity.getBukkitEntity();
    ExpBottleEvent event = new ExpBottleEvent(bottle, exp);
    Bukkit.getPluginManager().callEvent(event);
    return event;
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
@SuppressWarnings("deprecation")
@EventHandler
public void onClick(PlayerInteractEvent e) {
	if(e.getPlayer().getItemInHand().getType() != null){
		if(e.getPlayer().getItemInHand().getType() == Material.EXP_BOTTLE){
			
			e.setCancelled(true);
			e.getPlayer().updateInventory();
			if(DexCore.getCurrencySystem().hasEnoughGC(e.getPlayer().getUniqueId().toString(), 30)){
				DexCore.getCurrencySystem().removeGC(e.getPlayer().getUniqueId().toString(), 30);
			}else{
				e.getPlayer().sendMessage(ChatColor.BLUE + "Gadget > " + ChatColor.GRAY + "You don't have enough points!");
				return;
			}
			
			
			if(!cooldowntask.containsKey(e.getPlayer().getName())){
				final Player p = e.getPlayer();
				p.launchProjectile(ThrownExpBottle.class, 
						p.getLocation().getDirection().multiply(1));
				
				timeleft.put(p.getName(), 10.0);
				cooldowntask.put(p.getName(), new BukkitRunnable() {

					@Override
					public void run() {
						if(timeleft.get(p.getName()) == 0.0){
							cooldowntask.remove(p.getName());
							timeleft.remove(p.getName());
							cancel();
						}else{
							timeleft.put(p.getName(), timeleft.get(p.getName()) - 0.5);
						}
					}
				});
				
				cooldowntask.get(p.getName()).runTaskTimer(Hub.instance, 10, 10);
				
			}else{
				e.getPlayer().sendMessage(ChatColor.BLUE + "Gadget > " + ChatColor.GRAY + " You must wait for " + ChatColor.RED + timeleft.get(e.getPlayer().getName()) + ChatColor.GRAY + " seconds.");
			}
		}
	}
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
public PoreExpBottleEvent(EntityEvent handle) {
    super(null, -1);
    this.handle = checkNotNull(handle, "handle");
    checkState(handle.getEntity() instanceof org.spongepowered.api.entity.projectile.ThrownExpBottle,
            "Bad entity type");
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
@Override
public ThrownExpBottle getEntity() {
    return (ThrownExpBottle) PoreThrownExpBottle.of(this.getHandle().getEntity());
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
public ExpBottleEvent(ThrownExpBottle bottle, int exp) {
       super(bottle);
}
 

import org.bukkit.entity.ThrownExpBottle; //导入依赖的package包/类
public ThrownExpBottle getEntity() {
	return null;
}