Core/Movement: Add time synchronisation (#18189)

(cherry picked from commit 975f1e364a6a68be2beca261a64ea8aecc16f6f6)

1 files changed, 17 insertions, 2 deletions

diff --git a/src/common/Utilities/Timer.h b/src/common/Utilities/Timer.h
index 0996c7e9dae..4abd6cc8ca1 100644
--- a/src/common/Utilities/Timer.h
+++ b/src/common/Utilities/Timer.h
@@ -21,13 +21,20 @@
 #include "Define.h"
 #include <chrono>
 
-inline uint32 getMSTime()
+inline std::chrono::steady_clock::time_point GetApplicationStartTime()
 {
     using namespace std::chrono;
 
     static const steady_clock::time_point ApplicationStartTime = steady_clock::now();
 
-    return uint32(duration_cast<milliseconds>(steady_clock::now() - ApplicationStartTime).count());
+    return ApplicationStartTime;
+}
+
+inline uint32 getMSTime()
+{
+    using namespace std::chrono;
+
+    return uint32(duration_cast<milliseconds>(steady_clock::now() - GetApplicationStartTime()).count());
 }
 
 inline uint32 getMSTimeDiff(uint32 oldMSTime, uint32 newMSTime)
@@ -39,6 +46,14 @@ inline uint32 getMSTimeDiff(uint32 oldMSTime, uint32 newMSTime)
         return newMSTime - oldMSTime;
 }
 
+inline uint32 getMSTimeDiff(uint32 oldMSTime, std::chrono::steady_clock::time_point newTime)
+{
+    using namespace std::chrono;
+
+    uint32 newMSTime = uint32(duration_cast<milliseconds>(newTime - GetApplicationStartTime()).count());
+    return getMSTimeDiff(oldMSTime, newMSTime);
+}
+
 inline uint32 GetMSTimeDiffToNow(uint32 oldMSTime)
 {
     return getMSTimeDiff(oldMSTime, getMSTime());