1 files changed, 63 insertions, 0 deletions
diff --git a/Source/Online/time_interpolator.h b/Source/Online/time_interpolator.h
new file mode 100644
index 00000000..9150c7de
--- /dev/null
+++ b/Source/Online/time_interpolator.h
@@ -0,0 +1,63 @@
+//-----------------------------------------------------------------------------
+//           Name: time_interpolator.h
+//      Developer: Wolfire Games LLC
+//    Description:
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#pragma once
+
+class Timestamps {
+private:
+    float* timestamps;
+    int timestamp_size;
+    int timestamp_count;
+
+public:
+    Timestamps();
+    ~Timestamps();
+
+    void Clear();
+    void PushValue(float value);
+    void Pop();
+    void SetSize(int size);
+    int size();
+    float from_begin(int offset);
+    float from_end(int offset);
+};
+
+class TimeInterpolator {
+public:
+    Timestamps timestamps;
+
+    float virtual_host_walltime = 0.f;
+    float current_walltime = 0.f;
+    float host_walltime_offset = 0.f;
+
+    float interpolation_time = 0.f;
+    float interpolation_step = 0.f;
+
+    float full_interpolation = 0.f;
+    float host_walltime_offset_shift_acc = 0.f;
+	float host_walltime_offset_shift_vel = 0.f;
+
+    static float offset_shift_coefficient_factor;
+    static int target_window_size;
+
+    int Update();
+};