implement global tick routine in windows

src/main.cpp

@@ -483,6 +483,7 @@ int main(int argc, char** argv)
     std::thread renderer([&] {
         BT_SetTerminate();
         const float target_fps = 10;
+        const float target_tick_rate = 60;
         unsigned long t0 = GetTickCount();
         unsigned long t1;
         int frames = 0;
@@ -514,16 +515,21 @@ int main(int argc, char** argv)
                     working_list = std::move(tasklist);
                 }
 
-                async_lock();
+                if (!working_list.empty())
-                while (!working_list.empty())
                 {
+                    async_lock();
+                    while (!working_list.empty())
+                    {
 
-                    working_list.front()();
+                        working_list.front()();
-                    working_list.pop_front();
+                        working_list.pop_front();
+                    }
+                    async_unlock();
                 }
-                async_unlock();
             }
 
+            App::I.tick(dt);
+
             std::unique_lock<std::mutex> lock(render_mutex);
             if (render_timer > 1.0f / target_fps)
             {
@@ -541,10 +547,10 @@ int main(int argc, char** argv)
                 async_unlock();
                 frame_timer = 0;
                 //LOG("swap main");
+                frames++;
             }
-            frames++;
 
-            const int framerate = (1.f / target_fps) * 1000;
+            const int framerate = (1.f / target_tick_rate) * 1000;
             const int diff = framerate - (t1 - t0);
             render_cv.wait_for(lock, std::chrono::milliseconds(diff));
         }