light restructure

.gitmodules

@@ -1,16 +1,16 @@
-[submodule "lib/SDL"]
+[submodule "SDL"]
-	path = lib/SDL
+	path = extern/SDL
 	url = https://github.com/libsdl-org/SDL.git
 	branch = release-2.28.x
-[submodule "lib/SDL_image"]
+[submodule "SDL_image"]
-	path = lib/SDL_image
+	path = extern/SDL_image
 	url = https://github.com/libsdl-org/SDL_image.git
 	branch = release-2.8.x
-[submodule "lib/libpng"]
+[submodule "libpng"]
-	path = lib/libpng
+	path = extern/libpng
 	url = https://github.com/glennrp/libpng.git
 	branch = libpng16
-[submodule "lib/zlib"]
+[submodule "zlib"]
-	path = lib/zlib
+	path = extern/zlib
 	url = https://github.com/madler/zlib.git
 	branch = master

CMakeLists.txt

@@ -5,14 +5,14 @@ project(SDL_Minigame)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-set(PROJECT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
+set(PROJECT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
-set(PROJECT_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
+set(PROJECT_INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include)
 set(PROJECT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
 
-add_subdirectory(lib/SDL EXCLUDE_FROM_ALL)
+add_subdirectory(extern/SDL EXCLUDE_FROM_ALL)
-add_subdirectory(lib/SDL_image EXCLUDE_FROM_ALL)
+add_subdirectory(extern/SDL_image EXCLUDE_FROM_ALL)
-add_subdirectory(lib/zlib EXCLUDE_FROM_ALL)
+add_subdirectory(extern/zlib EXCLUDE_FROM_ALL)
-add_subdirectory(lib/libpng EXCLUDE_FROM_ALL)
+add_subdirectory(extern/libpng EXCLUDE_FROM_ALL)
 
 include_directories(
     ${PROJECT_INCLUDE_DIR}
@@ -21,7 +21,7 @@ include_directories(
     ${ZLIB_IMAGE_INCLUDE_DIRS}
     ${PNG_INCLUDE_DIRS})
 
-file(GLOB_RECURSE SOURCES src/*.cpp)
+file(GLOB_RECURSE SOURCES ${PROJECT_SOURCE_DIR}/src/*.cpp)
 add_executable(${PROJECT_NAME} ${SOURCES})
 
 target_link_libraries(${PROJECT_NAME} PRIVATE

README.md

@@ -3,6 +3,7 @@
 ```sh
 git submodule update --init # only needed once
 cmake -S . -B build
+cmake --build build
 ```
 For Windows systems using MinGW the flag `-G "MinGW Makefiles"` has to be specified