cmake fix

CMakeLists.txt

@@ -29,7 +29,7 @@ find_package(SDL3_image CONFIG REQUIRED)
 find_package(cpr CONFIG REQUIRED)
 find_package(nlohmann_json CONFIG REQUIRED)
 
-add_executable(tetris
+set(TETRIS_SOURCES
     src/main.cpp
     src/gameplay/core/Game.cpp
     src/core/GravityManager.cpp
@@ -58,12 +58,24 @@ add_executable(tetris
     src/states/PlayingState.cpp
 )
 
+if(APPLE)
+    add_executable(tetris MACOSX_BUNDLE ${TETRIS_SOURCES})
+else()
+    add_executable(tetris ${TETRIS_SOURCES})
+endif()
+
 if (WIN32)
     # Embed the application icon into the executable
     set_source_files_properties(src/app_icon.rc PROPERTIES LANGUAGE RC)
     target_sources(tetris PRIVATE src/app_icon.rc)
 endif()
 
+if(APPLE)
+    set_target_properties(tetris PROPERTIES
+        MACOSX_BUNDLE_INFO_PLIST "${CMAKE_SOURCE_DIR}/cmake/MacBundleInfo.plist.in"
+    )
+endif()
+
 if (WIN32)
     # Ensure favicon.ico is available in the build directory for the resource compiler
     set(FAVICON_SRC "${CMAKE_SOURCE_DIR}/assets/favicon/favicon.ico")
@@ -88,6 +100,32 @@ if (WIN32)
     )
 endif()
 
+if(APPLE)
+    set(_mac_copy_commands)
+    if(EXISTS "${CMAKE_SOURCE_DIR}/assets")
+        list(APPEND _mac_copy_commands
+            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_SOURCE_DIR}/assets" "$<TARGET_FILE_DIR:tetris>/assets"
+        )
+    endif()
+    if(EXISTS "${CMAKE_SOURCE_DIR}/fonts")
+        list(APPEND _mac_copy_commands
+            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_SOURCE_DIR}/fonts" "$<TARGET_FILE_DIR:tetris>/fonts"
+        )
+    endif()
+    if(EXISTS "${CMAKE_SOURCE_DIR}/FreeSans.ttf")
+        list(APPEND _mac_copy_commands
+            COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/FreeSans.ttf" "$<TARGET_FILE_DIR:tetris>/FreeSans.ttf"
+        )
+    endif()
+    if(_mac_copy_commands)
+        add_custom_command(TARGET tetris POST_BUILD
+            ${_mac_copy_commands}
+            COMMENT "Copying game assets into macOS bundle"
+        )
+    endif()
+endif()
+endif()
+
 target_link_libraries(tetris PRIVATE SDL3::SDL3 SDL3_ttf::SDL3_ttf SDL3_image::SDL3_image cpr::cpr nlohmann_json::nlohmann_json)
 
 if (WIN32)