gzip demos, add playdemo and timedemo commands

Source/Game/Console/EngineSubsystem.cs

@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Linq;
 using FidelityFX;
 using FlaxEngine;
 
@@ -239,6 +240,73 @@ namespace Game
             }
         }
 
+        [ConsoleCommand("playdemo")]
+        public static void PlayDemoCommand(string[] text)
+        {
+            if (text.Length < 1)
+                return;
+            string demoName = text[0];
+
+            if (!demoName.EndsWith(".gdem"))
+                demoName += ".gdem";
+
+            PlayerActor playerActor = Level.GetActors<PlayerActor>().First(x =>
+                x.GetScript<PlayerMovement>().PlayerId == NetworkManager.LocalPlayerClientId);
+
+            string demoPath = Path.Combine(AssetManager.DemoPath, demoName);
+            if (File.Exists(demoPath))
+                playerActor.GetScript<PlayerMovement>().SetInput(demoPath);
+        }
+
+        [ConsoleCommand("timedemo")]
+        public static void TimeDemoCommand(string[] text)
+        {
+            if (text.Length < 1)
+                return;
+            string demoName = text[0];
+
+            if (!demoName.EndsWith(".gdem"))
+                demoName += ".gdem";
+
+            PlayerActor playerActor = Level.GetActors<PlayerActor>().First(x =>
+                x.GetScript<PlayerMovement>().PlayerId == NetworkManager.LocalPlayerClientId);
+
+            var playerMovement = playerActor.GetScript<PlayerMovement>();
+            string demoPath = Path.Combine(AssetManager.DemoPath, demoName);
+            if (File.Exists(demoPath))
+                playerMovement.SetInput(demoPath);
+
+            Action onUpdate = () => {};
+            //bool lastPlaying = true;
+            float accumTime = 0f;
+            int accumTimes = 0;
+            onUpdate = () =>
+            {
+                if (playerMovement)
+                {
+                    var input = playerMovement.input as PlayerInputDemo;
+                    if (input != null)
+                    {
+                        if (!input.IsPlaying)
+                        {
+                            Console.Print($"demo ended, time: {accumTimes} frames, avg: {(accumTime/(float)accumTimes)*1000.0f}");
+                            Scripting.Update -= onUpdate;
+                            return;
+                        }
+
+                        if (accumTimes == 0)
+                            Console.Print($"timedemo started");
+
+                        accumTime += Time.DeltaTime;
+                        accumTimes++;
+                        //input.IsPlaying
+                    }
+                }
+            };
+
+            Scripting.Update += onUpdate;
+        }
+
         [ConsoleSubsystemInitializer]
         public static void Initialize()
         {