Float fields working

windowing/window.jai

@@ -3,6 +3,8 @@ Window :: struct {
     height: u32;
 }
 
+WINDOW_SIZE :: 42000;
+
 SDL_Window_Type :: struct {
     using #as window : Window;
 
@@ -31,6 +33,14 @@ create_window :: (title: string, width: u32, height: u32, fullscreen: bool) -> *
         flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
     }
 
+    if width == WINDOW_SIZE {
+        screen_width = display_mode.w;
+    }
+
+    if height == WINDOW_SIZE {
+        screen_height = display_mode.h;
+    }
+
     sdl_window := SDL_CreateWindow(to_c_string(title,, temp), SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, screen_width, screen_height, flags);
 
     if sdl_window == null {