From 6904ce72df5446844c03c8b79738f7692fe28cf5 Mon Sep 17 00:00:00 2001
From: OldSerpskiStalker <ictopiar@gmail.com>
Date: Wed, 4 Sep 2024 15:04:01 +0500
Subject: [PATCH] Added Timer and FPSCounter

---
 src/RenderLibrary/FPSCounter.cpp              | 27 +++++++++++++++++++
 src/RenderLibrary/FPSCounter.hpp              | 19 +++++++++++++
 src/RenderLibrary/RenderLibrary.vcxproj       |  4 +++
 .../RenderLibrary.vcxproj.filters             |  4 +++
 src/RenderLibrary/Timer.cpp                   | 24 +++++++++++++++++
 src/RenderLibrary/Timer.hpp                   | 18 +++++++++++++
 6 files changed, 96 insertions(+)
 create mode 100644 src/RenderLibrary/FPSCounter.cpp
 create mode 100644 src/RenderLibrary/FPSCounter.hpp
 create mode 100644 src/RenderLibrary/Timer.cpp
 create mode 100644 src/RenderLibrary/Timer.hpp

diff --git a/src/RenderLibrary/FPSCounter.cpp b/src/RenderLibrary/FPSCounter.cpp
new file mode 100644
index 0000000..513e7a2
--- /dev/null
+++ b/src/RenderLibrary/FPSCounter.cpp
@@ -0,0 +1,27 @@
+#include "StdAfx.h"
+
+#include <chrono>
+#include <iostream>
+#include "FPSCounter.hpp"
+
+using namespace RenderLibary;
+
+FPSCounter::FPSCounter() : _frame_count(0), _fps(0) 
+{
+    _last_time = std::chrono::high_resolution_clock::now();
+}
+
+void FPSCounter::update()
+{
+    _frame_count++;
+    auto now = std::chrono::high_resolution_clock::now();
+    std::chrono::duration<double> elapsed = now - _last_time;
+
+    if (elapsed.count() >= 1.0) 
+    {
+        _fps = _frame_count / elapsed.count();
+        _frame_count = 0;
+        _last_time = now;
+        std::cout << "FPS: " << _fps << std::endl;
+    }
+}
diff --git a/src/RenderLibrary/FPSCounter.hpp b/src/RenderLibrary/FPSCounter.hpp
new file mode 100644
index 0000000..d6526c9
--- /dev/null
+++ b/src/RenderLibrary/FPSCounter.hpp
@@ -0,0 +1,19 @@
+#pragma once
+
+namespace RenderLibary
+{
+    class FPSCounter final
+    {
+    public:
+        FPSCounter();
+        ~FPSCounter() = default;
+
+        void update();
+
+    private:
+        double _fps;
+        int _frame_count;
+
+        std::chrono::high_resolution_clock::time_point _last_time;
+    };
+}
diff --git a/src/RenderLibrary/RenderLibrary.vcxproj b/src/RenderLibrary/RenderLibrary.vcxproj
index 02bfe9f..b67f1b3 100644
--- a/src/RenderLibrary/RenderLibrary.vcxproj
+++ b/src/RenderLibrary/RenderLibrary.vcxproj
@@ -170,6 +170,7 @@
     <ClCompile Include="Exports.cpp" />
     <ClCompile Include="FabricCustomWindow.cpp" />
     <ClCompile Include="FabricNativeWindow.cpp" />
+    <ClCompile Include="FPSCounter.cpp" />
     <ClCompile Include="Memory.cpp" />
     <ClCompile Include="StdAfx.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
@@ -177,14 +178,17 @@
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
     </ClCompile>
+    <ClCompile Include="Timer.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="CreateDirectXDevice.hpp" />
     <ClInclude Include="Exports.hpp" />
     <ClInclude Include="FabricCustomWindow.hpp" />
     <ClInclude Include="FabricNativeWindow.hpp" />
+    <ClInclude Include="FPSCounter.hpp" />
     <ClInclude Include="Memory.hpp" />
     <ClInclude Include="StdAfx.h" />
+    <ClInclude Include="Timer.hpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/src/RenderLibrary/RenderLibrary.vcxproj.filters b/src/RenderLibrary/RenderLibrary.vcxproj.filters
index f4d146f..4397411 100644
--- a/src/RenderLibrary/RenderLibrary.vcxproj.filters
+++ b/src/RenderLibrary/RenderLibrary.vcxproj.filters
@@ -15,6 +15,8 @@
     <ClCompile Include="FabricCustomWindow.cpp" />
     <ClCompile Include="Memory.cpp" />
     <ClCompile Include="CreateDirectXDevice.cpp" />
+    <ClCompile Include="Timer.cpp" />
+    <ClCompile Include="FPSCounter.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="FabricNativeWindow.hpp" />
@@ -23,5 +25,7 @@
     <ClInclude Include="FabricCustomWindow.hpp" />
     <ClInclude Include="Memory.hpp" />
     <ClInclude Include="CreateDirectXDevice.hpp" />
+    <ClInclude Include="Timer.hpp" />
+    <ClInclude Include="FPSCounter.hpp" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/RenderLibrary/Timer.cpp b/src/RenderLibrary/Timer.cpp
new file mode 100644
index 0000000..629d10c
--- /dev/null
+++ b/src/RenderLibrary/Timer.cpp
@@ -0,0 +1,24 @@
+#include "StdAfx.h"
+
+#include <chrono>
+#include "Timer.hpp"
+
+using namespace RenderLibary;
+
+Timer::Timer() : _start_time(std::chrono::high_resolution_clock::now()) 
+{
+
+}
+
+void Timer::reset() 
+{
+    _start_time = std::chrono::high_resolution_clock::now();
+}
+
+double Timer::elapsed() const 
+{
+    auto end_time = std::chrono::high_resolution_clock::now();
+    std::chrono::duration<double> diff = end_time - _start_time;
+
+    return diff.count();
+}
diff --git a/src/RenderLibrary/Timer.hpp b/src/RenderLibrary/Timer.hpp
new file mode 100644
index 0000000..739d085
--- /dev/null
+++ b/src/RenderLibrary/Timer.hpp
@@ -0,0 +1,18 @@
+#pragma once
+
+namespace RenderLibary
+{
+    class Timer final
+    {
+    public:
+        Timer();
+        ~Timer() = default;
+
+        void reset();
+        double elapsed() const;
+
+    private:
+        std::chrono::high_resolution_clock::time_point _start_time;
+    };
+}
+