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Mengintegrasikan klien game untuk Amazon GameLift ServersRealtime

Topik ini menjelaskan cara mempersiapkan klien game Anda untuk dapat bergabung dan berpartisipasi dalam sesi permainan yang Amazon GameLift Servers di-host.

Ada dua set tugas yang diperlukan untuk mempersiapkan klien game Anda:

Temukan atau buat sesi permainan dan sesi pemain

Siapkan klien game Anda untuk menemukan atau memulai sesi permainan, meminta FlexMatch perjodohan, dan menyediakan ruang untuk pemain dalam game dengan membuat sesi pemain. Sebagai praktik terbaik, buat layanan backend dan gunakan untuk membuat permintaan langsung ke Amazon GameLift Servers layanan saat dipicu oleh tindakan klien game. Layanan backend kemudian menyampaikan respons yang relevan kembali ke klien game.

Connect ke game di Amazon GameLift ServersRealtime

Aktifkan klien game Anda untuk terhubung langsung dengan sesi permainan yang dihosting di Realtime server dan bertukar pesan dengan server dan dengan pemain lain.

Ketika bekerja dengan armada Realtime yang memiliki generasi sertifikat TLS diaktifkan, server secara otomatis dikonfirmasi menggunakan sertifikat TLS. Lalu lintas TCP dan UDP dienkripsi dalam penerbangan untuk menyediakan keamanan lapisan pengangkutan. Lalu lintas TCP dienkripsi menggunakan TLS 1.2, dan lalu lintas UDP dienkripsi menggunakan DTLS 1.2.

Contoh klien game

Klien realtime dasar (C #)

Contoh ini menggambarkan integrasi klien game dasar dengan SDK klien (C#) untuk. Amazon GameLift Servers Realtime Seperti yang ditunjukkan, contoh menginisialisasi objek Realtime klien, menyiapkan event handler dan mengimplementasikan callback sisi klien, menghubungkan ke Realtime server, mengirim pesan, dan memutuskan sambungan.

using System;
using System.Text;
using Aws.GameLift.Realtime;
using Aws.GameLift.Realtime.Event;
using Aws.GameLift.Realtime.Types;

namespace Example
{
    /**
     * An example client that wraps the client SDK for Amazon GameLift Servers Realtime
     * 
     * You can redirect logging from the SDK by setting up the LogHandler as such:
     * ClientLogger.LogHandler = (x) => Console.WriteLine(x);
     *
     */
    class RealTimeClient
    {
        public Aws.GameLift.Realtime.Client Client { get; private set; }
        
        // An opcode defined by client and your server script that represents a custom message type
        private const int MY_TEST_OP_CODE = 10;

        /// Initialize a client for Amazon GameLift Servers Realtime and connect to a player session.
        /// <param name="endpoint">The DNS name that is assigned to Realtime server</param>
        /// <param name="remoteTcpPort">A TCP port for the Realtime server</param>
        /// <param name="listeningUdpPort">A local port for listening to UDP traffic</param>
        /// <param name="connectionType">Type of connection to establish between client and the Realtime server</param>
        /// <param name="playerSessionId">The player session ID that is assigned to the game client for a game session </param>
        /// <param name="connectionPayload">Developer-defined data to be used during client connection, such as for player authentication</param>
       public RealTimeClient(string endpoint, int remoteTcpPort, int listeningUdpPort, ConnectionType connectionType,
                    string playerSessionId, byte[] connectionPayload)
        {
            // Create a client configuration to specify a secure or unsecure connection type
            // Best practice is to set up a secure connection using the connection type RT_OVER_WSS_DTLS_TLS12.
            ClientConfiguration clientConfiguration = new ClientConfiguration()
	     {
                // C# notation to set the field ConnectionType in the new instance of ClientConfiguration
	         ConnectionType = connectionType
	     };

            // Create a Realtime client with the client configuration            
            Client = new Client(clientConfiguration);

            // Initialize event handlers for the Realtime client
            Client.ConnectionOpen += OnOpenEvent;
            Client.ConnectionClose += OnCloseEvent;
            Client.GroupMembershipUpdated += OnGroupMembershipUpdate;
            Client.DataReceived += OnDataReceived;

            // Create a connection token to authenticate the client with the Realtime server
            // Player session IDs can be retrieved using AWS SDK for Amazon GameLift Servers
            ConnectionToken connectionToken = new ConnectionToken(playerSessionId, connectionPayload);

            // Initiate a connection with the Realtime server with the given connection information
            Client.Connect(endpoint, remoteTcpPort, listeningUdpPort, connectionToken);
        }

        public void Disconnect()
        {
            if (Client.Connected)
            {
                Client.Disconnect();
            }
        }

        public bool IsConnected()
        {
            return Client.Connected;
        }

        /// <summary>
        /// Example of sending to a custom message to the server.
        /// 
        /// Server could be replaced by known peer Id etc.
        /// </summary>
        /// <param name="intent">Choice of delivery intent i.e. Reliable, Fast etc. </param>
        /// <param name="payload">Custom payload to send with message</param>
        public void SendMessage(DeliveryIntent intent, string payload)
        {
            Client.SendMessage(Client.NewMessage(MY_TEST_OP_CODE)
                .WithDeliveryIntent(intent)
                .WithTargetPlayer(Constants.PLAYER_ID_SERVER)
                .WithPayload(StringToBytes(payload)));
        }

        /**
         * Handle connection open events
         */
        public void OnOpenEvent(object sender, EventArgs e)
        {
        }

        /**
         * Handle connection close events
         */
        public void OnCloseEvent(object sender, EventArgs e)
        {
        }

        /**
         * Handle Group membership update events 
         */
        public void OnGroupMembershipUpdate(object sender, GroupMembershipEventArgs e)
        {
        }

        /**
         *  Handle data received from the Realtime server 
         */
        public virtual void OnDataReceived(object sender, DataReceivedEventArgs e)
        {
            switch (e.OpCode)
            {
                // handle message based on OpCode
                default:
                    break;
            }
        }

        /**
         * Helper method to simplify task of sending/receiving payloads.
         */
        public static byte[] StringToBytes(string str)
        {
            return Encoding.UTF8.GetBytes(str);
        }

        /**
         * Helper method to simplify task of sending/receiving payloads.
         */
        public static string BytesToString(byte[] bytes)
        {
            return Encoding.UTF8.GetString(bytes);
        }
    }
}