removed r3

Runtime/Engine/Code/Foundation/AppLoopManager.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace RebootKit.Engine.Foundation {
+    public class AppLoopManager : MonoBehaviour {
+        static readonly Logger s_Logger = new Logger(nameof(AppLoopManager));
+
+        public delegate void TickDelegate(float dt);
+
+        readonly List<TickDelegate> m_Delegates = new List<TickDelegate>();
+        
+        void Update() {
+            float dt = Time.deltaTime;
+            foreach (TickDelegate tick in m_Delegates) {
+               tick(dt); 
+            }
+        }
+        
+        public void Add(TickDelegate tick) {
+            if (m_Delegates.Contains(tick)) {
+                s_Logger.Warning("Tick is already registered!");
+            }
+
+            m_Delegates.Add(tick);
+        }
+        
+        public void Remove(TickDelegate tick) {
+            m_Delegates.Remove(tick);
+        }
+    }
+}

Runtime/Engine/Code/Foundation/AppLoopManager.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 64a923b7732440d1ab5505b4dd250fc2
+timeCreated: 1759181550

Runtime/Engine/Code/Foundation/ConfigVarsContainer.cs

@@ -4,7 +4,6 @@ using System.IO;
 using System.Reflection;
 using System.Text;
 using UnityEngine;
-using ZLinq;
 
 namespace RebootKit.Engine.Foundation {
     [AttributeUsage(AttributeTargets.Field)]
@@ -49,7 +48,7 @@ namespace RebootKit.Engine.Foundation {
         static readonly List<ConfigVar> s_configVars = new List<ConfigVar>();
 
         public static void Register(ConfigVar cvar) {
-            if (s_configVars.AsValueEnumerable().Any(c => c.name.Equals(cvar.name, StringComparison.Ordinal))) {
+            if (Get(cvar.name) != null) {
                 throw new Exception($"CVar with name '{cvar.name}' already exists");
             }
 
@@ -63,7 +62,13 @@ namespace RebootKit.Engine.Foundation {
         }
 
         public static ConfigVar Get(string name) {
-            return s_configVars.AsValueEnumerable().FirstOrDefault(c => c.name.Equals(name, StringComparison.Ordinal));
+            foreach (ConfigVar configVar in s_configVars) {
+                if (configVar.name.Equals(name, StringComparison.Ordinal)) {
+                    return configVar;
+                }
+            }
+            
+            return null;
         }
 
         public static IEnumerable<ConfigVar> All() => s_configVars;