Added full screen mode

proj-windows/CMakeLists.txt

@@ -5,6 +5,10 @@ project(space-game001 LANGUAGES C CXX)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+# Build option (Windows-only): when ON, the game launches in fullscreen.
+# When OFF (default), it launches in a 1280x720 window like before.
+option(FULLSCREEN "Launch the game in fullscreen mode" OFF)
+
 include(${CMAKE_CURRENT_SOURCE_DIR}/../cmake/ThirdParty.cmake)
 
 # ===========================================
@@ -100,6 +104,10 @@ target_compile_definitions(space-game001 PRIVATE
 #    SHOW_PATH
 )
 
+if(FULLSCREEN)
+    target_compile_definitions(space-game001 PRIVATE FULLSCREEN)
+endif()
+
 # Линкуем с SDL2main, если он вообще установлен
 target_link_libraries(space-game001 PRIVATE SDL2main_external_lib)