Basis for player simulation

A2SServer/A2SServer.cs

@@ -100,6 +100,13 @@ public A2SRequestPackage Decode(ref ReadOnlySequence<byte> buffer, object contex
     }
 }
 
+public class PlayerInfo
+{
+    public string Name = "";
+    public int Score = 0;
+    public double Duration = 0;
+}
+
 public class Info
 {
     public byte Protocol = 0;
@@ -169,7 +176,7 @@ public static byte[] MakeInfoResponsePacket(ref Info info)
         return bytes.ToArray();
     }
 
-    public static byte[] MakePlayerResponsePacket()
+    public static byte[] MakePlayerResponsePacket(ref List<PlayerInfo> players)
     {
         var data = new byte[]
         {

A2SServer/Program.cs

@@ -55,6 +55,48 @@
 var rules = rulesTable.ToDictionary(
     kv => kv.Key, kv => (string)kv.Value);
 
+var playersTable = (TomlTable)cfg["players"];
+var playersStrategy = (string)playersTable["strategy"];
+var playersGame = (string)playersTable["game"];
+var playerNames =
+    from name in (TomlArray)playersTable["names"] select (string)name;
+
+var rng = new Random();
+
+var simPlayers = new List<PlayerInfo>();
+foreach (var name in playerNames)
+{
+    simPlayers.Add(new PlayerInfo
+    {
+        Name = name,
+        Score = rng.Next(-50, 250),
+        Duration = RandDouble(ref rng, 0, 60),
+    });
+}
+
+const double timerIntervalSecs = 5000;
+double roundTime = 0;
+var maxRoundTime = RandDouble(ref rng, 1800, 3600);
+var playerUpdateTimer = new System.Timers.Timer(timerIntervalSecs);
+playerUpdateTimer.Elapsed += (sender, eventArgs) =>
+{
+    roundTime += timerIntervalSecs;
+
+    if (roundTime > maxRoundTime)
+    {
+        roundTime = 0;
+        // Reset player scores and play times.
+    }
+};
+playerUpdateTimer.AutoReset = true;
+playerUpdateTimer.Enabled = true;
+
+// Get random match duration.
+// Set game players from pool of names.
+// Set random starting times for players in range.
+// Increment times every x seconds.
+// Adjust player scores semi randomly every x seconds.
+
 Console.WriteLine($"starting A2S server on '{host}:{queryPort}'");
 
 var addr = host is "" or "0.0.0.0"
@@ -106,7 +148,7 @@
         {
             Constants.A2SInfoRequestHeader => Utils.MakeInfoResponsePacket(ref info),
             Constants.A2SRulesRequestHeader => Utils.MakeRulesResponsePacket(ref rules),
-            Constants.A2SPlayerRequestHeader => Utils.MakePlayerResponsePacket(),
+            Constants.A2SPlayerRequestHeader => Utils.MakePlayerResponsePacket(ref simPlayers),
             _ => throw new ProtocolException($"invalid header: 0x{p.Header:x}")
         };
 
@@ -130,3 +172,8 @@
 Console.WriteLine("stopping");
 
 return 0;
+
+static double RandDouble(ref Random rng, double min, double max)
+{
+    return rng.NextDouble() * (max - min) + min;
+}

ds_config_template.toml

@@ -30,3 +30,14 @@ password_protected = false
 key = "value_pair1"
 key2 = "vaue_pair2"
 free = "form data here"
+
+[players]
+# TODO: player advertising strategies.
+#   - Increment score and time played to mimic actual gameplay.
+strategy = "dynamic"  # One of "dynamic", "static".
+game = "generic"  # "Generic" or "rs2".
+names = [
+    "foo",
+    "bar",
+    "baz",
+]