progress

Source/Game/Console/Console.cs

@@ -422,6 +422,8 @@ namespace Game
                 consoleLines.Add(lineEntry);
                 OnPrint?.Invoke(text);
             }
+            if (Debugger.IsAttached)
+                System.Diagnostics.Debug.WriteLine(text);
         }
 
         public void PrintDebug(int verbosity, bool noRepeat, string text)

Source/Game/Game.Build.cs

@@ -31,8 +31,8 @@ public class Game : GameModule
 
         base.Setup(options);
 
-        Tags["Network"] = string.Empty;
+        //Tags["Network"] = string.Empty;
-        options.PublicDependencies.Add("Networking");
+        //options.PublicDependencies.Add("Networking");
 
         options.PrivateDependencies.Add("FidelityFXFSR");
 

Source/Game/GameMode/GameModeManager_old.cs

@@ -53,11 +53,15 @@ namespace Game
         private static ulong lastReceivedServerFrame = 0;
         public static ulong ServerFrame => /*NetworkManager.server != null ? serverWorldState.frame :*/ lastReceivedServerFrame;
         public static ulong ClientFrame => clientWorldState.frame;
+        public static float ServerTime = 0f;
+        public static float ClientTime = 0f;
 
         public static void Init()
         {
             welcomed = false;
             lastReceivedServerFrame = 0;
+            ServerTime = Time.GameTime;
+            ClientTime = 0f;
 
             players = new Dictionary<uint, PlayerActor>();
             playerConnections = new Dictionary<uint, NetworkConnection>();
@@ -126,7 +130,10 @@ namespace Game
                     var playerFrame = playerFrames[serverWorldState.frame % 120];
 
                     playerFrame.frame = serverWorldState.frame;
-                    playerFrame.position = playerActor.Position;
+                    //playerFrame.position = playerActor.Position;
+                    PlayerMovement playerMovement = playerActor.GetScript<PlayerMovement>();
+                    playerMovement.input.GetState(serverWorldState.frame, out var inputState, out var actorState);
+                    playerFrame.position = actorState.position;
                 }
 
                 foreach (KeyValuePair<uint, PlayerActor> kv in players)
@@ -142,8 +149,9 @@ namespace Game
                         // TODO: relevancy checks here etc.
 
                         PlayerMovement playerMovement = otherPlayerActor.GetScript<PlayerMovement>();
-                        PlayerActorState actorState = playerMovement.input.GetCurrentActorState();
+                        //PlayerActorState actorState = playerMovement.input.GetCurrentActorState();
-                        PlayerInputState inputState = playerMovement.input.GetCurrentInputState();
+                        //PlayerInputState inputState = playerMovement.input.GetCurrentInputState();
+                        playerMovement.input.GetState(serverWorldState.frame, out var inputState, out var actorState);
                         {
                             NetworkMessage message = NetworkManager.ServerBeginSendMessage();
                             message.WriteByte((byte)GameModeMessageType.PlayerPosition);
@@ -162,6 +170,7 @@ namespace Game
                             message.WriteSingle(actorState.viewAngles.X);
                             message.WriteSingle(actorState.viewAngles.Y);
                             message.WriteSingle(actorState.viewAngles.Z);
+                            message.WriteSingle(actorState.lastJumpTime);
 
                             //inputState.frame
                             message.WriteSingle(inputState.viewDeltaX);
@@ -265,6 +274,7 @@ namespace Game
                     if (NetworkManager.IsClient || NetworkManager.IsLocalClient)
                     {
                         var serverFrame = networkEvent.Message.ReadUInt64();
+                        ClientTime = networkEvent.Message.ReadSingle();
                         int numActors = (int)networkEvent.Message.ReadUInt32();
                         for (int i = 0; i < numActors; i++)
                         {
@@ -353,6 +363,7 @@ namespace Game
                     actorState.viewAngles.X = networkEvent.Message.ReadSingle();
                     actorState.viewAngles.Y = networkEvent.Message.ReadSingle();
                     actorState.viewAngles.Z = networkEvent.Message.ReadSingle();
+                    actorState.lastJumpTime = networkEvent.Message.ReadSingle();
 
                     inputState.frame = reportedFrame;
                     inputState.viewDeltaX = networkEvent.Message.ReadSingle();
@@ -365,44 +376,11 @@ namespace Game
                     //Assert.IsTrue(reportedFrame >= lastReceivedServerFrame);
                     if (reportedFrame < lastReceivedServerFrame)
                     {
-                        Console.Print($"packet wrong order, received {lastReceivedServerFrame}, new {reportedFrame}");
+                        //Console.Print($"packet wrong order, received {lastReceivedServerFrame}, new {reportedFrame}");
                         break;
                     }
                     
-
+                    if (NetworkManager.IsClient)
-                    /*if (NetworkManager.IsLocalClient && !NetworkManager.IsServer)
-                    {
-
-                    }
-                    else*/ if (NetworkManager.IsServer)
-                    {
-                        Assert.Fail();
-                        /*PlayerFrame playerFrame = GetPlayerFrame(playerId, reportedFrame);
-                        PlayerActor playerActor = players[playerId];
-                        if (playerFrame == null)
-                            Console.Print("frame is in the past, unable to verify frame");
-                        else
-                        {
-                            Float3 playerFramePosition = playerFrame.position;
-                            if ((playerFramePosition - reportedPosition).Length > 0.0001)
-                            {
-                                Console.Print("player drifted, len: " + (playerFramePosition - reportedPosition).Length);
-
-                                {
-                                    NetworkMessage message = NetworkManager.ServerBeginSendMessage();
-                                    message.WriteByte((byte)GameModeMessageType.PlayerPosition);
-
-                                    message.WriteUInt64(serverWorldState.frame);
-                                    message.WriteUInt32(playerId);
-                                    message.WriteSingle(playerActor.Position.X);
-                                    message.WriteSingle(playerActor.Position.Y);
-                                    message.WriteSingle(playerActor.Position.Z);
-                                    NetworkManager.ServerEndSendMessage(ref message, playerConnections[playerId]);
-                                }
-                            }
-                        }*/
-                    }
-                    else if (NetworkManager.IsClient)
                     {
                         lastReceivedServerFrame = reportedFrame;
                         //Console.Print($"we drifted, corrected. client frame: {serverWorldState.frame}, server frame: {reportedFrame}");
@@ -414,7 +392,7 @@ namespace Game
                         {
                             PlayerInput playerInput = playerActor.GetScript<PlayerMovement>().input;
 
-                            playerInput.SetState(reportedFrame, ref inputState, ref actorState);
+                            playerInput.SetState(reportedFrame, inputState, actorState);
                             {
 
                             }
@@ -440,6 +418,7 @@ namespace Game
                 NetworkMessage message = NetworkManager.ServerBeginSendMessage();
                 message.WriteByte((byte)GameModeMessageType.WelcomePlayer);
                 message.WriteUInt64(serverWorldState.frame);
+                message.WriteSingle(ServerTime);
                 message.WriteUInt32((uint)serverWorldState.actors.Count);
                 foreach (PlayerActor playerActor in serverWorldState.actors)
                 {
@@ -514,7 +493,7 @@ namespace Game
                 players.Add(playerId, null);
             players[playerId] = playerActor;
             PlayerInput playerInput = playerActor.GetScript<PlayerMovement>().input;
-
+            playerInput.frame = (NetworkManager.IsServer) ? serverWorldState.frame : clientWorldState.frame;
             if (NetworkManager.IsServer)
                 serverWorldState.actors.Add(playerActor);
         }

Source/Game/Hud/SpeedWidget.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Diagnostics;
+using FlaxEngine;
+using FlaxEngine.GUI;
+
+namespace Game
+{
+	public class SpeedWidget : Script
+    {
+	    public override void OnAwake()
+        {
+
+        }
+
+        public override void OnUpdate()
+        {
+
+        }
+    }
+}

Source/Game/Player/PlayerActor.cs

@@ -43,6 +43,9 @@ namespace Game
     public class PlayerActor : RigidBody//, INetworkSerializable
     {
         private PlayerMovement playerMovement;
+        public CapsuleCollider capsuleCollider;
+        public BoxCollider boxCollider;
+        public MeshCollider meshCollider;
 
         //[NetworkReplicated]
         public uint PlayerId = uint.MaxValue;
@@ -69,6 +72,9 @@ namespace Game
             base.OnBeginPlay();
 
             playerMovement = FindScript<PlayerMovement>();
+            capsuleCollider = GetChild<CapsuleCollider>();
+            boxCollider = GetChild<BoxCollider>();
+            meshCollider = GetChild<MeshCollider>();
             //playerRigidBody = FindActor<RigidBody>();
 
 

Source/Game/Player/PlayerInput.cs

@@ -20,6 +20,7 @@ namespace Game
                 });
         }*/
 
+        #if false
         public PlayerInputState(ulong frame, float viewDeltaX, float viewDeltaY, float moveForward, float moveRight,
             bool attacking, bool jumping)
         {
@@ -52,6 +53,7 @@ namespace Game
             this.verificationViewAngles = verificationViewAngles;
             this.verificationOrientation = verificationOrientation;
         }
+        #endif
 
         public ulong frame;
         public float viewDeltaX, viewDeltaY;
@@ -73,6 +75,7 @@ namespace Game
         public Float3 velocity;
         public Quaternion orientation;
         public Float3 viewAngles; // yaw, pitch, roll
+        public float lastJumpTime;
     }
 
     [StructLayout(LayoutKind.Sequential)]
@@ -103,6 +106,8 @@ namespace Game
 
         public virtual void OnEndFrame()
         {
+            Console.Print("recorded frame " + frame);
+            currentState.input.frame = frame;
             states[frame % 120] = currentState;
 
             /*ulong oldest = ulong.MaxValue;
@@ -132,7 +137,7 @@ namespace Game
             return true;
         }
 
-        public void SetState(ulong frame, ref PlayerInputState inputState, ref PlayerActorState actorState)
+        public void SetState(ulong frame, PlayerInputState inputState, PlayerActorState actorState)
         {
             int frameIndex = (int)frame % 120;
             states[frameIndex].input = inputState;

Source/Game/Player/PlayerInputLocal.cs

@@ -104,11 +104,11 @@ namespace Game
                 NetworkManager.ClientEndSendMessage(ref message);
             }
 
+            base.OnEndFrame();
+
             // Reset anything accumulatable here
             currentState.input.viewDeltaX = 0;
             currentState.input.viewDeltaY = 0;
-
-            base.OnEndFrame();
         }
 
         public override void RecordCurrentActorState(PlayerActorState actorState)

Source/Game/Player/PlayerMovement.cs

@@ -97,6 +97,7 @@ namespace Game
         private float lastJumped = -1f;
         private float lastLanded = -1f;
         private int numJumps;
+        private float simulationTime = 0f;
 
         [ReadOnly] public bool onGround;
         private RigidBody rigidBody;
@@ -252,10 +253,11 @@ namespace Game
 
         public void ResetRotation(Float3 eulerAngles)
         {
-            viewAngles = eulerAngles;
+            //viewAngles = eulerAngles;
-            viewAnglesLastFrame = eulerAngles;
+            //viewAnglesLastFrame = eulerAngles;
 
             SetCameraEulerAngles(new Float3(eulerAngles.Y, eulerAngles.X, eulerAngles.Z));
+            viewAnglesLastFrame = viewAngles;
         }
 
         public override void OnUpdate()
@@ -279,9 +281,22 @@ namespace Game
 
             PlayerInputState inputState = input.GetCurrentInputState();
 
+            //if (inputState.viewDeltaX != 0 || inputState.viewDeltaY != 0)
+            //    inputState = inputState;
+
             viewAngles = viewAnglesLastFrame;
             ApplyInputToCamera(inputState);
 
+            input.RecordCurrentActorState(new PlayerActorState
+            {
+                position = Actor.Position,
+                velocity = currentVelocity,
+                orientation = rootActor.Orientation,
+                viewAngles = viewAngles,
+                lastJumpTime = lastJumped,
+                //viewAngles = new Float3(viewAngles.Y, viewAngles.X, viewAngles.Z)
+            });
+
             /*input.RecordCurrentActorState(new PlayerActorState()
             {
                 position = Actor.Position,
@@ -359,43 +374,148 @@ namespace Game
             }
             else
             {
-                if (input.Predict && GameModeManager.ClientFrame > 0 && GameModeManager.ServerFrame > 0)
+                if (Actor.Position.Length < 0.1)
+                    jumped = jumped;
+
+                //viewAngles = viewAnglesLastFrame;
+                //ApplyInputToCamera(inputState);
+                var oldAngles = viewAngles;
+                //viewAngles = viewAnglesLastFrame;
+                bool canpredict = true;
+                if (true && input.Predict && GameModeManager.ClientFrame > 0 && GameModeManager.ServerFrame > 0)
                 {
-                    predicting = true;
+                    for (ulong currentFrame = GameModeManager.ServerFrame; currentFrame < GameModeManager.ClientFrame; currentFrame++)
-                    for (ulong currentFrame = GameModeManager.ServerFrame; currentFrame < GameModeManager.ClientFrame - 1; currentFrame++)
                     {
                         if (!input.GetState(currentFrame, out var pastInputState, out var pastActorState))
                         {
-                            Console.Print($"predict failure: {currentFrame}");
+                            Console.Print($"not predicting");
+                            canpredict = false;
                             break;
                         }
-
-                        if (currentFrame == GameModeManager.ServerFrame)
-                        {
-                            Actor.Position = pastActorState.position;
-                            currentVelocity = pastActorState.velocity;
-                            rootActor.Orientation = pastActorState.orientation;
-                            viewAngles = new Float3(pastActorState.viewAngles.Y, pastActorState.viewAngles.X, pastActorState.viewAngles.Z);
-                        }
-                        SimulatePlayerMovement(pastInputState);
-
-                        //Console.Print($"predicted: {currentFrame}");
                     }
-                    predicting = false;
+
-                    //Console.Print($"current: {inputState.frame}");
+                    if (canpredict)
-                    //if (GameModeManager.ClientFrame - GameModeManager.ServerFrame > 0)
+                    { 
-                    //    Console.Print($"current diff: {GameModeManager.ClientFrame - GameModeManager.ServerFrame}");
+                        //var oldPos = Actor.Position;
+                        //var oldVel = currentVelocity;
+                        
+                        predicting = true;
+                        for (ulong currentFrame = GameModeManager.ServerFrame; currentFrame < GameModeManager.ClientFrame; currentFrame++)
+                        {
+                            if (!input.GetState(currentFrame, out var pastInputState, out var pastActorState))
+                            {
+                                Console.Print($"predict failure: {currentFrame}");   
+                                break;
+                            }
+
+                            if (currentFrame == GameModeManager.ServerFrame)
+                            {
+                                Actor.Position = pastActorState.position;
+                                currentVelocity = pastActorState.velocity;
+                                lastJumped = pastActorState.lastJumpTime;
+                                SetCameraEulerAngles(pastActorState.viewAngles, true);
+
+                                if (Actor.Position.Length < 0.1)
+                                    jumped = jumped;
+
+                                continue;
+                                //rootActor.Orientation = pastActorState.orientation;
+                                //viewAngles = pastActorState.viewAngles;
+                                //viewAngles = new Float3(pastActorState.viewAngles.Y, pastActorState.viewAngles.X, pastActorState.viewAngles.Z);
+                            }
+                            else
+                                ApplyInputToCamera(pastInputState, true);
+                            //SetCameraEulerAngles(pastActorState.viewAngles, true);
+
+                            //if (currentVelocity.Length > 0)
+                            //    currentVelocity = currentVelocity;
+
+                            //else
+                            //    ApplyInputToCamera(pastInputState, true);
+                            SimulatePlayerMovement(pastInputState);
+
+                            if ((Actor.Position - pastActorState.position).Length > 0.001)
+                                Console.Print($"mispredicted position");
+                            if ((currentVelocity - pastActorState.velocity).Length > 0.001)
+                                Console.Print($"mispredicted velocity");
+                            if ((viewAngles - pastActorState.viewAngles).Length > 0.001)
+                                Console.Print($"mispredicted viewangles: {viewAngles - oldAngles}");
+
+                            //Console.Print($"predicted: {currentFrame}");
+                        }
+
+                        predicting = false;
+
+                        /*if ((Actor.Position - oldPos).Length > 0.001)
+                            Console.Print($"mispredicted final position");
+                        if ((currentVelocity - oldVel).Length > 0.001)
+                            Console.Print($"mispredicted final velocity");*/
+
+                        ApplyInputToCamera(inputState, true);
+
+                        // Ensure orientation is always up-to-date after predicting
+                        //rootActor.Orientation = Quaternion.Euler(0, viewAngles.X, 0);
+                        cameraHolder.Orientation = Quaternion.Euler(viewAngles.Y, viewAngles.X, viewAngles.Z);
+
+                        SimulatePlayerMovement(inputState);
+
+                        if ((viewAngles - oldAngles).Length > 0.001)
+                            Console.Print($"mispredicted final viewangles: {viewAngles - oldAngles}");
+
+                        
+
+                        //Console.Print($"current: {inputState.frame}");
+                        //if (GameModeManager.ClientFrame - GameModeManager.ServerFrame > 0)
+                        //    Console.Print($"current diff: {GameModeManager.ClientFrame - GameModeManager.ServerFrame}");
+                    }
+                }
+                else
+                    canpredict = false;
+
+                if (!canpredict)
+                {
+                    
+                    SetCameraEulerAngles(viewAnglesLastFrame, true);
+                    ApplyInputToCamera(inputState, true);
+                    SimulatePlayerMovement(inputState);
                 }
 
-                SimulatePlayerMovement(inputState);
+                if (Actor.Position.Length < 0.1)
+                    jumped = jumped;
+
+                //if (currentVelocity.Length > 0)
+                //    Console.Print($"velocity at frame {GameModeManager.ClientFrame}");
+
+                /*if (input.GetState(GameModeManager.ClientFrame - 1, out var pastInputState2, out var pastActorState2))
+                {
+                    Actor.Position = pastActorState2.position;
+                    currentVelocity = pastActorState2.velocity;
+                    rootActor.Orientation = pastActorState2.orientation;
+                    viewAngles = new Float3(pastActorState2.viewAngles.Y, pastActorState2.viewAngles.X, pastActorState2.viewAngles.Z);
+                    //viewAngles = viewAnglesLastFrame;
+                }
+                else
+                    Console.Print($"poop");*/
+
+                //viewAngles = oldAngles;'
+                //viewAngles = viewAnglesLastFrame;
+                //ApplyInputToCamera(inputState, true);
+                //SetCameraEulerAngles(new Float3(pastActorState.viewAngles.Y, pastActorState.viewAngles.X, pastActorState.viewAngles.Z), true);
+                //SetCameraEulerAngles(new Float3(viewAnglesLastFrame.Y, viewAnglesLastFrame.X, viewAnglesLastFrame.Z), true);
+                //SimulatePlayerMovement(inputState);
             }
 
+            if (Actor.Position.Length < 0.1)
+                jumped = jumped;
+
             input.RecordCurrentActorState(new PlayerActorState
             {
                 position = Actor.Position,
                 velocity = currentVelocity,
                 orientation = rootActor.Orientation,
-                viewAngles = new Float3(viewAngles.Y, viewAngles.X, viewAngles.Z)
+                viewAngles = viewAngles,
+                lastJumpTime = lastJumped,
+                //viewAngles = new Float3(viewAngles.Y, viewAngles.X, viewAngles.Z)
             });
             input.OnEndFrame();
 
@@ -404,26 +524,30 @@ namespace Game
             //currentInputFrame++;
 
             viewAnglesLastFrame = viewAngles;
+
+            /*if (input.GetState(GameModeManager.ServerFrame, out var pastInputState2, out var pastActorState2))
+            {
+                Actor.Position = pastActorState2.position;
+                currentVelocity = pastActorState2.velocity;
+                SetCameraEulerAngles(pastActorState2.viewAngles, true);
+            }*/
         }
 
         private void ApplyInputToCamera(PlayerInputState inputState, bool wrapAround = true)
         {
-            // Update camera viewf
+            if (inputState.viewDeltaX == 0.0f && inputState.viewDeltaY == 0.0f)
-            float xAxis = inputState.viewDeltaX;
-            float yAxis = inputState.viewDeltaY;
-            if (xAxis == 0.0f && yAxis == 0.0f)
                 return;
 
-            float viewPitch = viewAngles.X;
+            float viewPitch = Mathf.Clamp(viewAngles.Y + inputState.viewDeltaY, -90.0f, 90.0f);
-            float viewYaw = viewAngles.Y;
+            float viewYaw = viewAngles.X + inputState.viewDeltaX;
-            viewPitch = Mathf.Clamp(viewPitch + yAxis, -90.0f, 90.0f);
-            viewYaw += xAxis;
-
             SetCameraEulerAngles(new Float3(viewYaw, viewPitch, viewAngles.Z), wrapAround);
         }
 
         private void SetCameraEulerAngles(Float3 angles, bool wrapAround = true)
         {
+            if (viewAngles == angles)
+                return;
+
             // Very slight drift
             if (wrapAround)
             {
@@ -433,17 +557,18 @@ namespace Game
             }
 
             // Root orientation must be set first
-            var or1 = Quaternion.Euler(0, angles.X, 0);
+            rootActor.Orientation = Quaternion.Euler(0, angles.X, 0);
-            var or2 = Quaternion.Euler(angles.Y, angles.X, angles.Z);
+            if (!predicting)
-            rootActor.Orientation = or1;
+            { 
-            cameraHolder.Orientation = or2;
+                cameraHolder.Orientation = Quaternion.Euler(angles.Y, angles.X, angles.Z);
-
+            }
             //Console.Print(angles.X.ToString());
 
-            viewAngles = new Float3(angles.Y, angles.X, angles.Z);
+            viewAngles = angles;//new Float3(angles.Y, angles.X, angles.Z);
+            //viewAnglesLastFrame = angles;
         }
 
-        private static bool SweepPlayerCollider(Actor actor, Float3 start, Vector3 end, out RayCastHit[] hits)
+        private static bool SweepPlayerCollider(PlayerActor actor, Float3 start, Vector3 end, out RayCastHit[] hits)
         {
             Vector3 delta = end - start;
             float distance = delta.Length;
@@ -456,9 +581,9 @@ namespace Game
             }
 
             bool collided = false;
-            CapsuleCollider capsuleCollider = actor.GetChild<CapsuleCollider>();
+            CapsuleCollider capsuleCollider = actor.capsuleCollider;
-            BoxCollider boxCollider = actor.GetChild<BoxCollider>();
+            BoxCollider boxCollider = actor.boxCollider;
-            MeshCollider meshCollider = actor.GetChild<MeshCollider>();
+            MeshCollider meshCollider = actor.meshCollider;
             if (capsuleCollider && capsuleCollider.IsActive)
                 collided = Physics.CapsuleCastAll(start,
                     capsuleCollider.Radius, capsuleCollider.Height,
@@ -550,7 +675,7 @@ namespace Game
         /// <param name="start">Start position</param>
         /// <param name="end">End position</param>
         /// <returns></returns>
-        private static TraceInfo TracePlayer(Actor actor, Vector3 start, Vector3 end)
+        private static TraceInfo TracePlayer(PlayerActor actor, Vector3 start, Vector3 end)
         {
             TraceInfo traceInfo = new TraceInfo();
 
@@ -665,7 +790,7 @@ namespace Game
         }
 #endif
 
-        private static SlideMoveHit StepSlideMove(Actor actor, ref Vector3 position, ref Vector3 velocity,
+        private static SlideMoveHit StepSlideMove(PlayerActor actor, ref Vector3 position, ref Vector3 velocity,
             bool onGround)
         {
             if (velocity.IsZero)
@@ -772,7 +897,7 @@ namespace Game
             return slideMoveHit;
         }
 
-        private static SlideMoveHit SlideMove(Actor actor, ref Vector3 position, ref Vector3 velocity)
+        private static SlideMoveHit SlideMove(PlayerActor actor, ref Vector3 position, ref Vector3 velocity)
         {
             if (velocity.IsZero)
                 return SlideMoveHit.Nothing;
@@ -899,18 +1024,14 @@ namespace Game
 
         public void SimulatePlayerMovement(PlayerInputState inputState)
         {
-            Transform rootTrans = rootActor.Transform;
+            simulationTime = GameModeManager.ClientTime + (inputState.frame * (1.0f / Time.PhysicsFPS));
 
             Vector3 inputDirection =
                 new Float3(inputState.moveRight, 0.0f, inputState.moveForward);
-            Vector3 moveDirection = rootTrans.TransformDirection(inputDirection);
+            Vector3 moveDirection = rootActor.Transform.TransformDirection(inputDirection);
-
             Vector3 position = rigidBody.Position;
             Vector3 velocity = currentVelocity; //rigidBody.LinearVelocity;
-
+            Vector3 wishVelocity = !inputDirection.IsZero ? moveDirection.Normalized * MoveSpeed : Vector3.Zero;
-            Vector3 wishVelocity = Float3.Zero;
-            if (!inputDirection.IsZero)
-                wishVelocity = moveDirection.Normalized * MoveSpeed;
 
             // categorize position
             bool lastGround = onGround;
@@ -923,7 +1044,7 @@ namespace Game
 
             if (jumped && !jumpAction)
                 jumped = false; // jump released
-            else if (jumped && Time.GameTime - lastJumped >= autoJumpTime)
+            else if (jumped && simulationTime - lastJumped >= autoJumpTime)
                 jumped = false; // jump timeout
 
             // jump
@@ -931,11 +1052,11 @@ namespace Game
                 if (OnJump(traceGround, ref position, ref velocity))
                 {
                     jumped = true;
-                    lastJumped = Time.GameTime;
+                    lastJumped = simulationTime;
                     numJumps++;
                 }
 
-            if (Time.GameTime - lastJumped > jumpBoostTime)
+            if (simulationTime - lastJumped > jumpBoostTime)
                 numJumps = 0;
 
             //if (/*onGround && */lastGround != onGround)
@@ -953,7 +1074,7 @@ namespace Game
                 ApplyAirAcceleration(ref velocity, wishVelocity);
             }
 
-            StepSlideMove(Actor, ref position, ref velocity, onGround);
+            StepSlideMove(Actor as PlayerActor, ref position, ref velocity, onGround);
 
 
             TraceInfo traceGround2 = CategorizePosition(position, ref velocity);
@@ -965,11 +1086,11 @@ namespace Game
             const float landingVelocityThreshold = 120f;
             const float landingHardVelocityThreshold = 500f;
             if (currentVelocity.Y - lastVelocity.Y > landingVelocityThreshold)
-                if (Time.GameTime - lastJumped > 0.01)
+                if (simulationTime - lastJumped > 0.01)
                 {
                     bool hardLanding = currentVelocity.Y - lastVelocity.Y > landingHardVelocityThreshold;
                     OnLanded(currentVelocity - lastVelocity, hardLanding);
-                    lastLanded = Time.GameTime;
+                    lastLanded = simulationTime;
                 }
         }
 
@@ -978,7 +1099,7 @@ namespace Game
             Vector3 groundDelta = Gravity.Normalized; //Gravity.Normalized * (collisionMargin * 2);
             //if (velocity.Y < 0f)
             //	groundDelta = Gravity.Normalized * velocity.Y * Time.DeltaTime;
-            TraceInfo traceGround = TracePlayer(Actor, position, position + groundDelta);
+            TraceInfo traceGround = TracePlayer(Actor as PlayerActor, position, position + groundDelta);
             //Console.PrintDebug(1, true, "startSolid: " + traceGround.startSolid);
 
             if (!traceGround.startSolid && traceGround.fraction < 1f &&
@@ -998,7 +1119,7 @@ namespace Game
                 Console.Print("backoff: " + backoff);
 
                 // retrace
-                traceGround = TracePlayer(Actor, position, position + point);
+                traceGround = TracePlayer(Actor as PlayerActor, position, position + point);
             }
 
             if (!traceGround.startSolid && (traceGround.fraction >= 1f ||
@@ -1022,7 +1143,7 @@ namespace Game
         private bool OnJump(TraceInfo traceGround, ref Vector3 position, ref Vector3 velocity)
         {
             float jumpVel = jumpVelocity;
-            if (Time.GameTime - lastJumped < jumpBoostTime)
+            if (simulationTime - lastJumped < jumpBoostTime)
                 jumpVel += jumpBoostVelocity;
 
             // Reset velocity from gravity
@@ -1052,7 +1173,7 @@ namespace Game
                 Vector3 stairCheckVelocity = velocity.Normalized * (stepHeight / Time.DeltaTime);
                 stairCheckVelocity.Y = 0f;
 
-                SlideMoveHit blocked = StepSlideMove(Actor, ref stairCheckPosition, ref stairCheckVelocity, true);
+                SlideMoveHit blocked = StepSlideMove(Actor as PlayerActor, ref stairCheckPosition, ref stairCheckVelocity, true);
                 float movedUp = stairCheckPosition.Y - position.Y;
 
                 if (movedUp > 0 && blocked.HasFlag(SlideMoveHit.Step))
@@ -1064,7 +1185,7 @@ namespace Game
 
             if (!predicting)
                 // Avoid overlapping with recent landing sound
-                if (Time.GameTime - lastLanded > 0.3)
+                if (simulationTime - lastLanded > 0.3)
                     PlayJumpLandSound(false, false);
 
             return true;