From ea712fae423b0cc4a4ba6896392e4cfda94c79ae Mon Sep 17 00:00:00 2001
From: JackCarterSmith <jackcartersmith@jcsmith.fr>
Date: Sun, 5 Jan 2025 23:10:41 +0100
Subject: [PATCH] Add rendering debug infos

---
 Engine/Graphics/3DRenderer.cpp | 13 +++++++++++++
 Engine/Graphics/3DRenderer.hpp | 10 ++++++++++
 Engine/Graphics/DebugUI.cpp    |  9 +++++----
 Engine/Graphics/DebugUI.hpp    |  3 ++-
 Game.cpp                       |  3 ++-
 5 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/Engine/Graphics/3DRenderer.cpp b/Engine/Graphics/3DRenderer.cpp
index 902019c..74dbae6 100644
--- a/Engine/Graphics/3DRenderer.cpp
+++ b/Engine/Graphics/3DRenderer.cpp
@@ -55,6 +55,12 @@ Graphic3DRenderer::Graphic3DRenderer() {
     mRenderList.push_back(std::make_shared<Tank>());
     mRenderList.back()->SetPosition(0.f, 0.f, 0.f);
     mRenderList.back()->SetScale(5.0f);
+
+    for (size_t i = 0; i < 40; i++) {
+        mRenderList.push_back(std::make_shared<Tank>());
+        mRenderList.back()->SetPosition(-100.f + (i * 5.f), 0.f, 8.f);
+        mRenderList.back()->SetScale(5.0f);
+    }
 }
 
 Graphic3DRenderer::~Graphic3DRenderer() {}
@@ -97,6 +103,10 @@ void Graphic3DRenderer::Draw(sf::RenderTexture& context) {
     sf::BlendMode sBM = sf::BlendNone;
     sf::RenderStates sRS(sBM);
 
+#ifdef DEBUG
+    drawnTriCount = 0;
+#endif
+
     // Hardcoded debug movement, TODO: remove it
     UpdateInternalTestObjects();
 
@@ -231,6 +241,9 @@ void Graphic3DRenderer::Draw(sf::RenderTexture& context) {
                             context.draw(v_tri, 4, sf::Triangles, sRS);
 #else
                             context.draw(v_tri, 4, sf::LineStrip, sRS);
+#endif
+#ifdef DEBUG
+                            drawnTriCount++;
 #endif
                         }
                     }
diff --git a/Engine/Graphics/3DRenderer.hpp b/Engine/Graphics/3DRenderer.hpp
index cdcbfee..1afd3d7 100644
--- a/Engine/Graphics/3DRenderer.hpp
+++ b/Engine/Graphics/3DRenderer.hpp
@@ -32,6 +32,11 @@ public:
     void UpdateCamera(CAMERA_MOVE type, const float value);
     void Draw(sf::RenderTexture& context);
 
+    // Debug datas
+#ifdef DEBUG
+    const unsigned int GetDrawTriCount() const noexcept { return drawnTriCount; }
+#endif
+
 private:
     std::unique_ptr<Camera> mMainCamera;    // Default player view
     sf::Vector2f mRTSize;
@@ -40,5 +45,10 @@ private:
 
     void UpdateInternalTestObjects();
     float ComputeSGRatio();
+
+    // Debug datas
+#ifdef DEBUG
+    unsigned int drawnTriCount;
+#endif
     
 };
\ No newline at end of file
diff --git a/Engine/Graphics/DebugUI.cpp b/Engine/Graphics/DebugUI.cpp
index 6354ab2..6ecd50a 100644
--- a/Engine/Graphics/DebugUI.cpp
+++ b/Engine/Graphics/DebugUI.cpp
@@ -14,22 +14,23 @@ DebugUI::DebugUI() {
     gDbgText.setFillColor(sf::Color::White);
 }
 
-void DebugUI::UpdateDebugData(const double cpu_usage, const double cpu_time, const double cycle_time, const int fps, const std::size_t ram_virt_usage, const std::size_t ram_phys_usage) {
+void DebugUI::UpdateDebugData(const double cpu_usage, const double cpu_time, const double cycle_time, const int fps, const std::size_t ram_virt_usage, const std::size_t ram_phys_usage, const unsigned int drawnTriCount) {
     gDbgStats.cpu_usage = cpu_usage;
     gDbgStats.cpu_time = cpu_time;
     gDbgStats.cycle_time = cycle_time;
     gDbgStats.fps = fps;
     gDbgStats.ram_virt_usage = ram_virt_usage;
     gDbgStats.ram_phys_usage = ram_phys_usage;
+    gDbgStats.drawnTriCount = drawnTriCount;
 }
 
 void DebugUI::DrawDebugData(std::shared_ptr<sf::RenderWindow> context) {
     std::ostringstream outStrStream;
     outStrStream << std::fixed;
 
-    outStrStream << std::setprecision(0) << "CPU: " << gDbgStats.cpu_usage << "% (cycle: " << std::setprecision(3) << gDbgStats.cpu_time << "/" << gDbgStats.cycle_time << "ms)" << std::endl;
-    outStrStream << std::setprecision(1) << "RAM: " << gDbgStats.ram_virt_usage << "MB(V)/" << gDbgStats.ram_phys_usage << "MB(P)" << std::endl;
-    outStrStream << std::setprecision(0) << "FPS: " << gDbgStats.fps;
+    outStrStream << std::setprecision(0) << "CPU: " << gDbgStats.cpu_usage << "% (cycle: " << std::setprecision(3) << gDbgStats.cpu_time << "/" << gDbgStats.cycle_time << "ms) - Triangles: " << gDbgStats.drawnTriCount << '\n';
+    outStrStream << std::setprecision(1) << "RAM: " << gDbgStats.ram_virt_usage << "MB(V)/" << gDbgStats.ram_phys_usage << "MB(P)\n";
+    outStrStream << std::setprecision(0) << "FPS: " << gDbgStats.fps << std::flush;
 
     gDbgText.setString(outStrStream.str());
     context->draw(gDbgText);
diff --git a/Engine/Graphics/DebugUI.hpp b/Engine/Graphics/DebugUI.hpp
index 8289f65..98de0ec 100644
--- a/Engine/Graphics/DebugUI.hpp
+++ b/Engine/Graphics/DebugUI.hpp
@@ -14,6 +14,7 @@ struct sDbgStats {
     int fps;
     std::size_t ram_virt_usage;
     std::size_t ram_phys_usage;
+    unsigned int drawnTriCount;
 };
 
 class DebugUI {
@@ -21,7 +22,7 @@ public:
     DebugUI();
     ~DebugUI() {}
 
-    void UpdateDebugData(const double cpu_usage, const double cpu_time, const double cycle_time, const int fps, const std::size_t ram_virt_usage, const std::size_t ram_phys_usage);
+    void UpdateDebugData(const double cpu_usage, const double cpu_time, const double cycle_time, const int fps, const std::size_t ram_virt_usage, const std::size_t ram_phys_usage, const unsigned int drawnTriCount);
     void DrawDebugData(std::shared_ptr<sf::RenderWindow> context);
 
 private:
diff --git a/Game.cpp b/Game.cpp
index f65d26b..dd31725 100644
--- a/Game.cpp
+++ b/Game.cpp
@@ -68,7 +68,8 @@ GAME_STATUS Game::Tick() {
                 1000.f / TARGET_FPS,
                 mFrameCnt,
                 PerfsGetVirtMem() / 1000,
-                PerfsGetPhysMem() / 1000
+                PerfsGetPhysMem() / 1000,
+                mWorld3D->GetDrawTriCount()
             );
 
             mFrameCnt = 0;