From 3a22a3746f6c63c9f47b01f2cb07aa23efd938c8 Mon Sep 17 00:00:00 2001
From: DcruBro <info@dcrubro.com>
Date: Mon, 16 Mar 2026 11:41:25 +0100
Subject: [PATCH] deltatime window

---
 include/game/gamemanager.hpp | 2 ++
 src/game/gamemanager.cpp     | 2 ++
 src/window/window.cpp        | 3 ++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/game/gamemanager.hpp b/include/game/gamemanager.hpp
index 900a298..b54515d 100644
--- a/include/game/gamemanager.hpp
+++ b/include/game/gamemanager.hpp
@@ -25,6 +25,7 @@ namespace Game {
             void run(std::stop_token stopToken);
             void setTargetUpdatesPerSecond(int target) { mTargetUpdatesPerSecond = target; }
             int getTargetUpdatesPerSecond() { return mTargetUpdatesPerSecond; }
+            float getLastDelta() { return mLastDelta; }
             
             static void setSharedData(const std::string& key, std::string data);
             static std::string getSharedData(const std::string& key);
@@ -34,5 +35,6 @@ namespace Game {
             int mTargetUpdatesPerSecond = TARGET_UPDATE_RATE;
             clock::time_point mLastUpdate;
             static std::unordered_map<std::string, std::string> mSharedStrings;
+            float mLastDelta = 0.f;
     };
 }
\ No newline at end of file
diff --git a/src/game/gamemanager.cpp b/src/game/gamemanager.cpp
index 8cf2794..279f4e3 100644
--- a/src/game/gamemanager.cpp
+++ b/src/game/gamemanager.cpp
@@ -30,6 +30,8 @@ namespace Game {
                 ERROR("Exception in GameManager thread: " << e.what());
             }
 
+            mLastDelta = seconds;
+
             mLastUpdate = now;
 
             const auto elapsed = std::chrono::steady_clock::now() - frameStart;
diff --git a/src/window/window.cpp b/src/window/window.cpp
index 9150513..620f17e 100644
--- a/src/window/window.cpp
+++ b/src/window/window.cpp
@@ -98,7 +98,8 @@ namespace Game::Window {
             auto elapsed = std::chrono::duration_cast<std::chrono::seconds>(now - mLastFPSTime).count();
             if (elapsed >= 1) {
                 int fps = static_cast<int>(mFrameCount / elapsed);
-                SDL_SetWindowTitle(mWindow, ("Game Window - FPS: " + std::to_string(fps)).c_str());
+                std::string title = "Game Window - FPS: " + std::to_string(fps) + " : Update Time: " + std::to_string(mGameManager.getLastDelta());
+                SDL_SetWindowTitle(mWindow, title.c_str());
                 mFrameCount = 0;
                 mLastFPSTime = now;
             }