PHP、Unity3D和Workerman：如何实现一个大规模多人在线游戏

CREATE TABLE `player` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(50) NOT NULL,
  `level` int(11) NOT NULL DEFAULT '1',
  `exp` int(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

// Player.php
class Player {
  private $id;
  private $name;
  private $level;
  private $exp;

  public function __construct($id, $name, $level, $exp) {
    $this->id = $id;
    $this->name = $name;
    $this->level = $level;
    $this->exp = $exp;
  }

  public function levelUp($exp) {
    $this->exp += $exp;
    if ($this->exp >= 100) {
      $this->level++;
      $this->exp -= 100;
    }
  }

  // Getters and setters...
}

function getPlayerById($id) {
  $conn = new mysqli('localhost', 'username', 'password', 'database');
  $sql = 'SELECT * FROM player WHERE id = ' . $id;
  $result = $conn->query($sql);
  if ($result->num_rows > 0) {
    $row = $result->fetch_assoc();
    return new Player($row['id'], $row['name'], $row['level'], $row['exp']);
  } else {
    return null;
  }
}

public class Player : MonoBehaviour {
  public int level = 1;
  public int exp = 0;

  public void LevelUp(int exp) {
    this.exp += exp;
    if (this.exp >= 100) {
      level++;
      this.exp -= 100;
    }
  }
  
  // Other methods...
  
  void Update() {
    // Handle user input and update game state...
  }
}

use WorkermanWorker;
require_once '/path/to/Workerman/Autoloader.php';

$worker = new Worker('websocket://0.0.0.0:1234');
$worker->onConnect = function($connection) {
  // Handle new client connection...
};
$worker->onMessage = function($connection, $data) {
  // Handle client messages...
};
$worker->onClose = function($connection) {
  // Handle client disconnection...
};

Worker::runAll();