networking progress

Source/Game/Player/PlayerInput.cs

@@ -87,6 +87,11 @@ namespace Game
         public const byte DemoVer = 1;
         public PlayerState currentState;
         public ulong frame;
+        //public ulong oldestFrame;
+
+        private PlayerState[] states = new PlayerState[120];
+
+        public virtual bool Predict => false;
 
         public virtual void OnUpdate()
         {
@@ -98,12 +103,43 @@ namespace Game
 
         public virtual void OnEndFrame()
         {
+            states[frame % 120] = currentState;
+
+            /*ulong oldest = ulong.MaxValue;
+            for (int i = 0; i < 120; i++)
+                oldest = states[i].input.frame < oldest ? states[i].input.frame : oldest;
+            oldestFrame = oldest;*/
+
+            frame++;
         }
 
         public virtual void RecordCurrentActorState(PlayerActorState actorState)
         {
         }
 
+        public bool GetState(ulong frame, out PlayerInputState inputState, out PlayerActorState actorState)
+        {
+            int frameIndex = (int)frame % 120;
+            if (states[frameIndex].input.frame != frame)
+            {
+                inputState = default;
+                actorState = default;
+                return false;
+            }
+
+            inputState = states[frameIndex].input;
+            actorState = states[frameIndex].actor;
+            return true;
+        }
+
+        public void SetState(ulong frame, ref PlayerInputState inputState, ref PlayerActorState actorState)
+        {
+            int frameIndex = (int)frame % 120;
+            states[frameIndex].input = inputState;
+            states[frameIndex].input.frame = frame;
+            states[frameIndex].actor = actorState;
+        }
+
         public PlayerInputState GetCurrentInputState()
         {
             return currentState.input;