我有一个websocket应用程序，我正在构建一个基于Ratchet的游戏，它使用React事件循环。在这个脚本的开头，我已经想出了如何实现一个periodictimer，每秒向游戏发送一个脉冲，然后执行ticks和combat rounds。这非常有效。
然而，我最近意识到我还需要增加“延迟”的能力。客户端，或在函数中暂停执行。例如，如果一个玩家被击晕，或者我想要一个NPC等待1.5秒，然后回复一个更逼真的＆＃34;逼真的＆＃34;会话的感觉。
这个功能是否内置在反应库中，还是我必须通过其他方式实现的？经过一些研究，看起来我可能正在寻找pthreads，请看这个问题/答案：How can one use multi threading in PHP applications
为了更清楚我想要实现的目标，请以此代码为例：
function onSay($string)
{
global $world;
$trigger_words = array(
'hi',
'hello',
'greetings'
);
$triggered = false;
foreach($trigger_words as $trigger_word)
{
if(stristr($string, $trigger_word))
{
$triggered = true;
}
}
if($triggered)
{
foreach($world->players as $player)
{
if($player->pData->in_room === $this->mobile->in_room)
{
sleep(1);
$this->toChar($player, $this->mobile->short . " says '`kOh, hello!``'");
}
}
}
}
显然，这不起作用，因为sleep（1）函数将暂停整个服务器进程。
非常感谢任何见解。谢谢！
更新：我的服务器脚本：
require 'vendor/autoload.php';
require 'src/autoload.php';
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use React\Socket\Server as Reactor;
use React\EventLoop\Factory as LoopFactory;;
$world = new WorldInterface();
class Server implements MessageComponentInterface
{
public function __construct(React\EventLoop\LoopInterface $loop)
{
$update = new Update();
$update->doTick();
$loop->addPeriodicTimer(1, function()
{
$this->doBeat();
});
}
public function onOpen(ConnectionInterface $ch)
{
global $world;
$world->connecting[$ch->resourceId] = $ch;
$ch->CONN_STATE = "GET_NAME";
$ch->pData = new stdClass();
$ch->send("Who dares storm our wayward path? ");
}
public function onMessage(ConnectionInterface $ch, $args)
{
if($ch->CONN_STATE == "CONNECTED")
{
$ch->send("> " . $args . "\n");
$interpreter = new Interpreter($ch);
$interpreter->interpret($args);
}
else
{
$ch->send($args);
$login = new Login($ch, $args);
$login->start();
}
}
public function onClose(ConnectionInterface $ch)
{
global $world;
if(isset($ch->pData->name))
{
if(isset($world->players[$ch->pData->name]))
{
echo "Player {$ch->pData->name} has disconnected\n";
unset($world->players->{$ch->pData->name});
}
}
if(isset($world->connecting->{$ch->resourceId}))
{
echo "Connection " . $ch->resourceId . " has disconnected.";
unset($world->connecting->{$ch->resourceId});
}
}
public function onError(ConnectionInterface $conn, \Exception $e)
{
echo "An error has occurred: {$e->getMessage()}\n";
$conn->close();
}
public function doBeat()
{
global $world;
++$world->beats;
foreach($world->process_queue as $trigger_beat => $process_array)
{
// if the beat # that the function should fire on is less than,
// or equal to the current beat, fire the function.
if($trigger_beat <= $world->beats)
{
foreach($process_array as $process)
{
$class = new $process->class();
call_user_func_array(array($class, $process->function), $process->params);
}
// remove it from the queue
unset($world->process_queue[$trigger_beat]);
}
// else, the beat # the function should fire on is greater than the current beat,
// so break out of the loop.
else
{
break;
}
}
if($world->beats % 2 === 0)
{
$update = new Update();
$update->doBeat();
}
}
}
$loop = LoopFactory::create();
$socket = new Reactor($loop);
$socket->listen(9000, 'localhost');
$server = new IoServer(new HttpServer(new WsServer(new Server($loop))), $socket, $loop);
$server->run();
答案 0 :(得分：1)
好吧，所以我会假设，因为这仍然没有答案，反应事件循环中没有“简单”的解决方案，尽管我很想错。在那之前，我想我会发布我的解决方案。
注意：我不知道这样做的含义是什么。我不知道它的可扩展性如何。它在具有多个进程和播放器的实时环境中未经测试。
我认为这是一个不错的解决方案。我的特定游戏面向玩家基础可能是20 - 30，所以我认为我可能面临的唯一问题是如果一堆排队的动作在同一秒内触发。
代码！
我做的第一件事（前一段时间）是在服务器启动时添加一个定期计时器：
public function __construct(React\EventLoop\LoopInterface $loop)
{
$update = new Update();
$update->doTick();
$loop->addPeriodicTimer(1, function()
{
$this->doBeat();
});
}
我的'世界级'上也有一些全局变量：
// things in the world
public $beats = 0;
public $next_tick = 45;
public $connecting = array();
public $players = array();
public $mobiles = array();
public $objects = array();
public $mobs_in_rooms = array();
public $mobs_in_areas = array();
public $in_combat = array(
'mobiles' => array(),
'players' => array()
);
public $process_queue;
注意节拍和 process_queue 。
我的doBeat（）函数如下所示：
public function doBeat()
{
global $world;
++$world->beats;
foreach($world->process_queue as $trigger_beat => $process_array)
{
// if the beat # that the function should fire on is less than,
// or equal to the current beat, fire the function.
if($trigger_beat <= $world->beats)
{
foreach($process_array as $process)
{
$class = new $process->class();
call_user_func_array(array($class, $process->function), $process->params);
}
// remove it from the queue
unset($world->process_queue[$trigger_beat]);
}
// else, the beat # the function should fire on is greater than the current beat,
// so break out of the loop.
else
{
break;
}
}
print_r(array_keys($world->process_queue));
if($world->beats % 2 === 0)
{
$update = new Update();
$update->doBeat();
}
}
现在，在我的全球“世界”对象中，我还有其他一些功能：
function addToProcessQueue($process_obj)
{
//adds the process object to an array of the beat #
//when it should be triggered on process_queue.
$this->process_queue[(int)$process_obj->trigger_beat][] = $process_obj;
ksort($this->process_queue);
}
function createProcessObject($array)
{
$process_obj = new stdClass();
if(isset($array['function']))
{
$process_obj->function = $array['function'];
}
else
{
echo "All process requests must define a function to call defined as a key named 'function' on the array you pass.";
}
if(isset($array['class']))
{
$process_obj->class = $array['class'];
}
else
{
echo "All process requests must define a class to call defined as a key named 'class' on the array you pass.";
}
if(isset($array['params']))
{
$process_obj->params = $array['params'];
}
else
{
$process_obj->params = array();
}
if(isset($array['char']))
{
$process_obj->char = $array['char'];
}
else
{
$process_obj->char = false;
}
if(isset($array['trigger_beat']) && is_numeric($array['trigger_beat']))
{
$process_obj->trigger_beat = $array['trigger_beat'];
}
else
{
echo "All process requests must define a trigger_beat. \n"
. "Use world->beats to get current beat and add your wait time onto it. \n"
. "Trigger beat MUST be an integer. \n";
}
$this->addToProcessQueue($process_obj);
}
现在要向队列添加进程，这是我的新移动“onSay（）”命令：
function onSay($string)
{
global $world;
$trigger_words = array(
'hi',
'hello',
'greetings'
);
$triggered = false;
foreach($trigger_words as $trigger_word)
{
if(stristr($string, $trigger_word))
{
$triggered = true;
}
}
if($triggered)
{
$process_array = array(
'trigger_beat' => $world->beats + 2,
'function' => 'toRoom',
'class' => 'PlayerInterface',
'params' => array($this->mobile->in_room, $this->mobile->short . " says '`kOh, hello!``'")
);
$world->createProcessObject($process_array);
}
}
因此，如果移动设备听到“hi”，“hello”或“greetings”，则“toRoom”函数（将字符串发送到同一房间中的每个字符）将被添加到进程队列中并将触发2从执行原始函数开始的秒数。
我希望所有这些都有意义，如果有人知道更好的方法来完成这样的事情在PHP和事件循环内，请回答/评论。我没有像上面所说的那样将其标记为“正确”，我不知道它在生产中的效率如何。
答案 1 :(得分：0)