Override 的 ScheduledEvent 事件处理程序

ScheduledEvent Eventhandler from Override

所以我想检查玩家在第一次执行命令后何时右击手里拿着一本书。我尝试将 Runnable 运行 作为计时器,并在该调度程序中检查玩家是否右击手中的书。 Runnable 迫使我重写 'run' 方法。

这是我试过的:

@Override
public void onEnable() {

this.getServer().getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {

    @Override
    public void run() {
        //Here I want to check if the player right clicked with a book in their hand.
    }
}

为了知道玩家是否运行命令,你必须在某处存储玩家的UUID。首先,您创建一个 Set<UUID> 临时存储所有已执行该命令的玩家的所有唯一 ID,因此当您看到该集合中存储的玩家时,您就知道他们执行了该命令。 UUID 是一个 36 个字符的字符串,对于每个玩家都是唯一的,并且在每个服务器上都相同。你使 Set 像这样:

final Set<UUID> players = new HashSet<>();

接下来您需要发出命令。我会这样做:

@Override
public boolean onCommand(CommandSender sender, Command cmd, String cl, String[] args) {
    //Check if your command was executed
    if(cmd.getName().equalsIgnorecase("yourCommand")){
        //Check if the executor of the command is a player and not a commandblock or console
        if(sender instanceof Player){

            Player player = (Player) sender;

            //Add the player's unique ID to the set
            players.add(player.getUniqueId());
        } 
    }
}

现在您接下来要做的是监听 PlayerInteractEvent 以查看玩家何时点击了这本书。如果你看到玩家在 Set 中,你就知道他们已经执行了命令。下面是我如何制作 EventHandler:

@EventHandler
public void onInteract(PlayerInteractEvent event){
    //Check if the player right clicked.
    if(event.getAction() == Action.RIGHT_CLICK_AIR || event.getAction() == Action.RIGHT_CLICK_BLOCK){
        //Check if the Set contains this player
        if(players.contains(event.getPlayer().getUniqueId()){
            //Check if the player had an item in their hand
            if(event.getPlayer().getItemInHand().getType() == Material.BOOK){
                //Remove player from the set so they have to execute the command again before right clicking the book again
                players.remove(event.getPlayer().getUniqueId());
                //Here you can do whatever you want to do when the player executed the command and right clicks a book.
            }
        }
    }
}

所以我所做的是当玩家执行命令时,将它们存储在 Set 中。接下来收听 PlayerInteractEvent。这基本上是每次玩家交互时调用的回调方法。这可能是当玩家踩到压力板时,当玩家向右或向左单击方块或在空中等时。

PlayerInteractEvent 中,我检查玩家是否存储在 Set 中,如果玩家在空中右击或右击方块并检查玩家是否有书他们的手。如果一切正确,我将玩家从 Set 中移除,这样他们必须再次执行命令才能执行相同的操作。

另外不要忘记注册事件并实施Listener

如果您想了解有关 Set 的更多信息,可以找到 Javadocs here