CrowbarListener.java 文件源码

@EventHandler(ignoreCancelled = true, priority = EventPriority.MONITOR)
public void onBlockPlace(BlockPlaceEvent event) {
    Block block = event.getBlockPlaced();
    ItemStack stack = event.getItemInHand();
    Player player = event.getPlayer();
    if (block.getState() instanceof CreatureSpawner && stack.hasItemMeta()) {
        ItemMeta meta = stack.getItemMeta();

        if (meta.hasLore() && meta.hasDisplayName()) {
            CreatureSpawner spawner = (CreatureSpawner) block.getState();
            List<String> lore = meta.getLore();
            if (!lore.isEmpty()) {
                String spawnerName = ChatColor.stripColor(lore.get(0).toUpperCase());
                Optional<EntityType> entityTypeOptional = GuavaCompat.getIfPresent(EntityType.class, spawnerName);
                if (entityTypeOptional.isPresent()) {
                    spawner.setSpawnedType(entityTypeOptional.get());
                    spawner.update(true, true);
                    player.sendMessage(ChatColor.AQUA + "Placed a " + ChatColor.BLUE + spawnerName + ChatColor.AQUA + " spawner.");
                }
            }
        }
    }
}