Ping measurement and display (console: ping)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

MultiplayerManager.cs

@@ -64,6 +64,9 @@ namespace MSCO
         Steamworks.CSteamID pendingLobby;   // Einladung, die noch angenommen werden muss
         Steamworks.CSteamID steamHost;      // Client: Steam-ID des Hosts
         float nextPing;
+        float pingMs = -1f;                 // geglättete Laufzeit zum Server/Host (-1 = noch unbekannt)
+        const string PrefShowPing = "MSCO_ShowPing";
+        GUIStyle pingStyle;
         float savingMessageUntil;
         GUIStyle hudStyle, savingStyle;
         Texture2D hudBackground;
@@ -221,6 +224,48 @@ namespace MSCO
             return list;
         }
 
+        // ---------------------------------------------------------------- Ping
+
+        /// <summary>Laufzeit zum Server/Host in ms (-1 = unbekannt, z.B. alter Server oder man ist selbst Host).</summary>
+        public float PingMs { get { return pingMs; } }
+
+        /// <summary>Ping-Anzeige oben rechts (Konsole: "ping"), bleibt gespeichert.</summary>
+        public bool ShowPing
+        {
+            get { return PlayerPrefs.GetInt(PrefShowPing, 0) == 1; }
+            set { PlayerPrefs.SetInt(PrefShowPing, value ? 1 : 0); }
+        }
+
+        /// <summary>Text für Anzeige und Konsole.</summary>
+        public string PingText
+        {
+            get
+            {
+                if (session == null) return "not connected";
+                if (session.IsHost) return "you are the host";
+                return pingMs < 0f ? "measuring..." : Mathf.RoundToInt(pingMs) + " ms";
+            }
+        }
+
+        void DrawPing()
+        {
+            if (!ShowPing || session == null) return;
+            if (pingStyle == null)
+            {
+                pingStyle = UiTheme.Panel9(new Color(0.06f, 0.06f, 0.07f, 0.85f), 6);
+                pingStyle.fontSize = 12;
+                pingStyle.fontStyle = FontStyle.Bold;
+                pingStyle.alignment = TextAnchor.MiddleCenter;
+                pingStyle.padding = new RectOffset(10, 10, 0, 0);
+            }
+            // Farbe nach Qualität: grün < 80 ms, gelb < 150 ms, sonst rot
+            Color color = pingMs < 0f ? UiTheme.Muted : pingMs < 80f ? UiTheme.Online : pingMs < 150f ? UiTheme.Pending : UiTheme.Danger;
+            pingStyle.normal.textColor = color;
+            var content = new GUIContent("PING  " + PingText);
+            float width = pingStyle.CalcSize(content).x;
+            GUI.Box(new Rect(Screen.width - width - 12, 8, width, 24), content, pingStyle);
+        }
+
         // ---------------------------------------------------------------- Cheats (Admin-Menü)
 
         /// <summary>Cheats nur im Spiel und nur für Server-Admins bzw. den P2P-Host.</summary>
@@ -637,7 +682,8 @@ namespace MSCO
             if (Time.realtimeSinceStartup >= nextPing)
             {
                 nextPing = Time.realtimeSinceStartup + PingInterval;
-                session.SendToAll(MsgType.Ping);
+                float sentAt = Time.realtimeSinceStartup;
+                session.SendToAll(MsgType.Ping, NetSession.Build(w => w.Write(sentAt))); // Zeitstempel für die Ping-Messung
             }
 
             foreach (NetEvent e in session.Poll())
@@ -704,6 +750,7 @@ namespace MSCO
             if (session != null && session.IsSteam) steam.Leave();
             session = null;
             handshakeDone = false;
+            pingMs = -1f;
             teleportToHost = false;
             dedicated = false;
             connectingToServer = false;
@@ -752,6 +799,22 @@ namespace MSCO
         {
             BinaryReader r = m.Reader();
 
+            // Ping-Messung: der Host schickt den Zeitstempel sofort zurück, der Client rechnet die Laufzeit aus
+            if (m.Type == MsgType.Ping)
+            {
+                if (session.IsHost && m.Payload.Length >= 4) session.SendTo(peerId, MsgType.Pong, m.Payload);
+                return;
+            }
+            if (m.Type == MsgType.Pong)
+            {
+                if (!session.IsHost && m.Payload.Length >= 4)
+                {
+                    float rtt = (Time.realtimeSinceStartup - r.ReadSingle()) * 1000f;
+                    if (rtt >= 0f && rtt < 60000f) pingMs = pingMs < 0f ? rtt : Mathf.Lerp(pingMs, rtt, 0.4f);
+                }
+                return;
+            }
+
             if (IsGameMessage(m.Type))
             {
                 int from;
@@ -1374,6 +1437,7 @@ namespace MSCO
             if (MenuHelper.InMenu)
             {
                 lobby.Draw(this);
+                DrawPing();
                 overlays.Draw(this, false);
                 return;
             }
@@ -1383,6 +1447,7 @@ namespace MSCO
                 GUI.Label(new Rect(0, Screen.height / 2f - 40, Screen.width, 80), "SAVING GAME...", savingStyle);
 
             if (session != null) DrawHud();
+            DrawPing();
             overlays.Draw(this, session != null);
         }