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Game/Scripts/Networking/SteamBootstrap.cs

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+using Steamworks;
+using UnityEngine;
+
+namespace MegaKoop.Game.Networking
+{
+    /// <summary>
+    /// Handles SteamAPI initialization and callback pumping. Place once in the initial scene.
+    /// </summary>
+    [DefaultExecutionOrder(-1000)]
+    public class SteamBootstrap : MonoBehaviour
+    {
+        private static bool isInitialized;
+        private static SteamBootstrap instance;
+
+        public static bool IsInitialized => isInitialized;
+
+        private void Awake()
+        {
+            if (instance != null)
+            {
+                Destroy(gameObject);
+                return;
+            }
+
+            instance = this;
+            DontDestroyOnLoad(gameObject);
+
+            TryInitializeSteam();
+        }
+
+        private void TryInitializeSteam()
+        {
+            if (isInitialized)
+            {
+                return;
+            }
+
+            if (!Packsize.Test())
+            {
+                Debug.LogError("[SteamBootstrap] Packsize Test returned false. Wrong Steamworks binaries for this platform?");
+                return;
+            }
+
+            if (!DllCheck.Test())
+            {
+                Debug.LogError("[SteamBootstrap] DllCheck Test returned false. Missing Steamworks dependencies.");
+                return;
+            }
+
+            try
+            {
+                isInitialized = SteamAPI.Init();
+            }
+            catch (System.DllNotFoundException e)
+            {
+                Debug.LogError("[SteamBootstrap] Steamworks native binaries not found: " + e.Message);
+                isInitialized = false;
+            }
+
+            if (!isInitialized)
+            {
+                Debug.LogError("[SteamBootstrap] Failed to initialize Steam API.");
+            }
+            else
+            {
+                Debug.Log("[SteamBootstrap] Steam API initialized for user " + SteamFriends.GetPersonaName());
+            }
+        }
+
+        private void Update()
+        {
+            if (!isInitialized)
+            {
+                return;
+            }
+
+            SteamAPI.RunCallbacks();
+        }
+
+        private void OnDestroy()
+        {
+            if (instance == this)
+            {
+                ShutdownSteam();
+                instance = null;
+            }
+        }
+
+        private void ShutdownSteam()
+        {
+            if (!isInitialized)
+            {
+                return;
+            }
+
+            SteamAPI.Shutdown();
+            isInitialized = false;
+            Debug.Log("[SteamBootstrap] Steam API shutdown.");
+        }
+    }
+}