Input & Resource Managers

Engine/Src/Imp/CPP/Time.cpp

@@ -19,11 +19,84 @@
 
 namespace ia::iae
 {
+    FLOAT32 g_globalTimeScale = 1.0f;
+
+    FLOAT32 g_deltaTime{1 / 60.0f};
+    INT64 g_lastFrameTick{0};
+
+    std::chrono::time_point<std::chrono::high_resolution_clock> g_startMS;
+
     VOID Time::Initialize()
     {
+        g_startMS = std::chrono::high_resolution_clock::now();
     }
 
     VOID Time::Terminate()
     {
     }
+
+    VOID Time::NextFrame()
+    {
+        const auto t = GetTickCount();
+        g_deltaTime = t - g_lastFrameTick;
+        g_lastFrameTick = t;
+    }
+
+    INT64 Time::GetTickCount()
+    {
+        return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now() -
+                                                                     g_startMS)
+            .count();
+    }
+
+    INT64 Time::GetCurrentSecond()
+    {
+        return std::chrono::duration_cast<std::chrono::seconds>(std::chrono::high_resolution_clock::now() - g_startMS)
+            .count();
+    }
+
+    FLOAT32 Time::GetFrameDeltaTime()
+    {
+        return g_deltaTime * g_globalTimeScale;
+    }
+
+    INT64 Time::GetUnixSecond()
+    {
+        return std::chrono::duration_cast<std::chrono::seconds>(
+                   std::chrono::system_clock::now().time_since_epoch()).count();
+    }
+
+    INT64 Time::GetUnixMillisecond()
+    {
+        return std::chrono::duration_cast<std::chrono::milliseconds>(
+                   std::chrono::system_clock::now().time_since_epoch()).count();
+    }
+} // namespace ia::iae
+
+namespace ia::iae
+{
+    VOID Engine::SetTimeScale(IN FLOAT32 scale)
+    {
+        g_globalTimeScale = scale;
+    }
+
+    INT64 Engine::GetTickCount()
+    {
+        return Time::GetTickCount();
+    }
+
+    INT64 Engine::GetUnixSecond()
+    {
+        return Time::GetUnixSecond();
+    }
+
+    INT64 Engine::GetUnixMillisecond()
+    {
+        return Time::GetUnixMillisecond();
+    }
+
+    FLOAT32 Engine::GetFrameDeltaTime()
+    {
+        return Time::GetFrameDeltaTime();
+    }
 } // namespace ia::iae