Question

我试图建立一个奖励你杀死玩家的奖励系统。所以我完成了基本的检查，但我想检测受害者在受到攻击或用弓射击后是否陷入虚空，事情是，我无法找到解决方案。

代码：

    @EventHandler
public void onEntityDamageByEntityEvent(EntityDamageByEntityEvent event) {

    if(!(event.getDamager() instanceof Player) || !(event.getEntity() instanceof Player) ) return;

    String damagerName = event.getDamager().getName();
    String victimName = event.getEntity().getName();

    damageCheck.put(victimName, damagerName);

    Bukkit.broadcastMessage(ChatColor.GRAY + "" + ChatColor.STRIKETHROUGH + "-------------[ X ]-------------");
    Bukkit.broadcastMessage(ChatColor.DARK_AQUA + damagerName + ChatColor.GRAY + " is the damager");
    Bukkit.broadcastMessage(ChatColor.DARK_AQUA + victimName + ChatColor.GRAY + " is the victim");
    Bukkit.broadcastMessage(ChatColor.GRAY + "" + ChatColor.STRIKETHROUGH + "-------------[ X ]-------------");

    Bukkit.getLogger().info(damageCheck.toString());

}

@EventHandler
public void onEntityDeathEvent(EntityDeathEvent event){

    damageCheck.remove(event.getEntity().getName());
    damageCheck.remove(event.getEntity().getKiller().getName());

    event.getEntity().getKiller().sendMessage("You are the killer, and receives rewards!");
    event.getEntity().sendMessage("You died, thats horrible..");

    Bukkit.broadcastMessage(ChatColor.GRAY + "" + ChatColor.STRIKETHROUGH + "-------------[ X ]-------------");
    Bukkit.broadcastMessage(ChatColor.DARK_AQUA + event.getEntity().getKiller().getName() + ChatColor.GRAY + " is the damager");
    Bukkit.broadcastMessage(ChatColor.DARK_AQUA + event.getEntity().getName() + ChatColor.GRAY + " is the victim");
    Bukkit.broadcastMessage(ChatColor.GRAY + "" + ChatColor.STRIKETHROUGH + "-------------[ X ]-------------");

}

@EventHandler
public void onPlayerMovement(PlayerMoveEvent event) {
    Player player = (Player)event.getPlayer();

    // Checking if the players Y
    if(event.getTo().getY() < 25.0) {
        // do stuff here

    }
}

Answer 1

您应该使用EntityDeathEvent块包围try & catch代码，以避免出现错误......

在PlayerMoveEvent上，将event.getPlayer()转换为Player是多余的，因为您已经指定了变量。 Y也应该低于10，相信我，它会更好。

好的，现在你首先需要检查hashmap是否包含该播放器（谁在虚空中死亡），然后从hashmap中获取杀手（damager）名称，之后你可以发送消息给那个杀手并最终杀死了虚空中的玩家

代码：D

if (!damageCheck.containsKey(player.getName())) return;

        Player killer = Bukkit.getPlayer(damageCheck.get(player.getName()));
        killer.sendMessage(ChatColor.GREEN + "You've earned " + ChatColor.RED + "" + ChatColor.BOLD + "$3" + ChatColor.GREEN + " for killing " + ChatColor.DARK_AQUA + player.getName()); // sends a message to the killer
        player.setHealth(0); // kills the player

所以我们已经完成了处理void部分。现在你需要检测受害者是否被枪杀：

将您的if语句更改为if (!(event.getDamager() instanceof Player || event.getDamager() instanceof Projectile) || !(event.getEntity() instanceof Player)) return;，以便它可以检测是否有箭头击中受害者......

现在您需要检测射手/伤害者名称，这可以通过if声明轻松完成。

代码：

Player shooterName = event.getDamager() instanceof Projectile ? (Player) ((Projectile) event.getDamager()).getShooter() : null;

String damagerName = event.getDamager() instanceof Player ? event.getDamager().getName() : shooterName.getName();

您也可以删除Bukkit.getLogger().info(damageCheck.toString());，因为它仅用于调试。

Answer 2

你应该这样做：

private enum Cause {
    ATTACK,
    ARROW,
}

private HashMap<UUID, UUID> lastDamage = new HashMap<UUID, UUID>();
private HashMap<UUID, Cause> lastDamageCause = new HashMap<UUID, Cause>();

@EventHandler
public void onDamage(EntityDamageByEntityEvent e) {
    if (!(e.getEntity() instanceof Player)) {
        return;
    }
    Player damaged = (Player) e.getEntity();
    if (e.getDamager() instanceof Arrow) {
        Arrow a = (Arrow) e.getDamager();
        if (a.getShooter() instanceof Player) {
            Player damager = (Player) a.getShooter();
            lastDamage.put(damaged.getUniqueId(), damager.getUniqueId());
            lastDamageCause.put(damaged.getUniqueId(), Cause.ARROW);
        }
    } else if (e.getDamager() instanceof Player) {
        Player damager = (Player) e.getDamager();
        lastDamage.put(damaged.getUniqueId(), damager.getUniqueId());
        lastDamageCause.put(damaged.getUniqueId(), Cause.ATTACK);
    }
}

@EventHandler
public void onPlayerDeath(PlayerDeathEvent e) {
    Player p = e.getEntity();
    if (e.getDeathMessage().contains("fell out of the world")) {
        if (lastDamage.containsKey(p.getUniqueId())) {
            Player killer = Bukkit.getPlayer(lastDamage.get(p.getUniqueId()));
            Cause cause = lastDamageCause.get(p.getUniqueId());
            switch (cause) {
            case ATTACK:
                //Do whatever you want
                break;
            case ARROW:
                //Do whatever you want
                break;
            default:
                break;
            }
        }
    }
}

如果您只想检查Y高度，请使用PlayerMoveEvent

不要忘记在播放器与服务器断开连接后删除HashMaps中的值以避免内存泄漏。

Bukkit / Spigot - PvP在落入虚空时奖励玩家

2 个答案: