From 2e76bd6855dd6af220dddf5dd86e382721473cdd Mon Sep 17 00:00:00 2001
From: Eduardo Espadeiro <eduardo.espadeiro@tecnico.ulisboa.pt>
Date: Fri, 21 Aug 2020 12:59:49 +0100
Subject: [PATCH] MacOS App Bundle Support

---
 .gitignore     |  2 ++
 CMakeLists.txt | 11 +++++++++--
 src/platform.c |  7 +++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index e29004a..338b1e2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,5 @@
 !assets/**
 !libs/**
 !src/**
+
+.DS_Store
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 98db3d0..66387f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,11 +14,18 @@ add_subdirectory(libs/rayfork)
 add_executable(${CMAKE_PROJECT_NAME} src/platform.c src/game.c)
 target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE glad rayfork)
 target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE libs/rayfork libs/sokol)
-target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC ASSETS_PATH="${CMAKE_CURRENT_SOURCE_DIR}/assets/") # This is useful to get an ASSETS_PATH in your IDE during development but you should comment this if you compile a release version and uncomment the next line
-#target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC ASSETS_PATH="my-path-to-the-assets-directory") # Uncomment this line to setup the ASSETS_PATH macro to the final assets directory when you share the game
 
 # Enable MacOS specific flags and link against it's specific libraries
 if (APPLE)
+    file(GLOB ASSETS assets/*)
+    set_property(SOURCE "${ASSETS}" PROPERTY MACOSX_PACKAGE_LOCATION "Resources/assets")
+    target_sources(${CMAKE_PROJECT_NAME} PRIVATE "${ASSETS}")
+    target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC ASSETS_PATH="assets/")
+
     target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC "-framework Cocoa" "-framework QuartzCore" "-framework OpenGL")
     target_compile_options(${CMAKE_PROJECT_NAME} PUBLIC "-fobjc-arc" "-ObjC")
+    set_target_properties(${CMAKE_PROJECT_NAME} PROPERTIES MACOSX_BUNDLE TRUE)
+else()
+    target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC ASSETS_PATH="${CMAKE_CURRENT_SOURCE_DIR}/assets/") # This is useful to get an ASSETS_PATH in your IDE during development but you should comment this if you compile a release version and uncomment the next line
+    #target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC ASSETS_PATH="my-path-to-the-assets-directory") # Uncomment this line to setup the ASSETS_PATH macro to the final assets directory when you share the game
 endif()
diff --git a/src/platform.c b/src/platform.c
index 066a198..73b92bf 100644
--- a/src/platform.c
+++ b/src/platform.c
@@ -16,6 +16,13 @@ static platform_input_state input_state;
 
 static void sokol_on_init(void)
 {
+#ifdef RAYFORK_PLATFORM_MACOS
+    CFURLRef url = CFBundleCopyResourcesDirectoryURL(CFBundleGetMainBundle());
+    char path[PATH_MAX];
+    if (!CFURLGetFileSystemRepresentation(url, true, (UInt8 *) path, sizeof(path)) || chdir(path) != 0)
+        exit(-1);
+    CFRelease(url);
+#endif
     gladLoadGL();
 
     game_init(RF_DEFAULT_GFX_BACKEND_INIT_DATA);