more camera movement

src/engine/Shared.h

@@ -7,6 +7,8 @@ struct SharedWindowData
     int32_t WindowWidth = 1920;
     int32_t WindowHeight = 1080;
     bool HeldScanCodes[512]{0};
+    float MouseDeltaX = 0.0f;
+    float MouseDeltaY = 0.0f;
 };
 
 struct FileChangeNotification

src/engine/Window.cpp

@@ -57,6 +57,9 @@ void EngineWindow::Update(SharedWindowData& shared)
         }
         case SDL_EVENT_MOUSE_MOTION:
         {
+            shared.MouseDeltaX += evt.motion.xrel;
+            shared.MouseDeltaY += evt.motion.yrel;
+            break;
         }
         default:
             break;