rendering rectangles

src/main.cpp

@@ -9,8 +9,11 @@
   including commercial applications, and to alter it and redistribute it
   freely.
 */
+#include <SDL3/SDL_rect.h>
+#include <SDL3/SDL_render.h>
 #include <string>
 #define SDL_MAIN_USE_CALLBACKS 1  /* use the callbacks instead of main() */
+
 #include <SDL3/SDL.h>
 #include <SDL3/SDL_main.h>
 
@@ -52,9 +55,19 @@ SDL_AppResult SDL_AppIterate(void *appstate)
   x = ((w / scale) - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE * message.length()) / 2;
   y = ((h / scale) - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE) / 2;
 
+  SDL_FRect rect {
+    .x = 30,
+    .y = 30,
+    .w = 100,
+    .h = 100
+  };
+
+
   /* Draw the message */
-    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
+  SDL_SetRenderDrawColor(renderer, 0, 0, 200, 255);
   SDL_RenderClear(renderer);
+  SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
+  SDL_RenderFillRect(renderer, &rect);
   SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
   SDL_RenderDebugText(renderer, x, y, message.c_str());
   SDL_RenderPresent(renderer);