rework(CMakeLists): rework file and add shader compilation

CMakeLists.txt

@@ -1,55 +1,84 @@
 cmake_minimum_required(VERSION 3.10)
-project(learnopengl)
+project(OpenGL_Minecraft)
 
 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-file(GLOB_RECURSE CPP_SOURCES CONFIGURE_DEPENDS src/*.cpp)
-file(GLOB_RECURSE CPP_HEADERS CONFIGURE_DEPENDS src/*.hpp)
+file(GLOB_RECURSE CPP_SOURCES CONFIGURE_DEPENDS "src/*.cpp" "src/**/*.cpp")
 
+# GLAD (add C file)
 list(APPEND CPP_SOURCES lib/glad/src/glad.c)
-add_executable(main ${CPP_SOURCES} ${CPP_HEADERS})
 
-# GLFW
+# find shader files
+file(GLOB_RECURSE SHADERS CONFIGURE_DEPENDS
+  "res/**/*.frag"
+  "res/**/*.vert"
+  "res/**/*.glsl"
+)
+list(REMOVE_DUPLICATES SHADERS)
+
+file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/shaders)
+
+set(SHADER_C_FILES)
+foreach(SHADER ${SHADERS})
+  message(${SHADER})
+
+  get_filename_component(NAME_WE ${SHADER} NAME_WE)
+  get_filename_component(EXT ${SHADER} EXT)
+  string(REPLACE "." "_" EXT_SAFE ${EXT})
+  set(OUTPUT_C ${CMAKE_BINARY_DIR}/shaders/${NAME_WE}${EXT_SAFE}.c)
+
+  add_custom_command(
+    OUTPUT ${OUTPUT_C}
+    COMMAND python3 
+            ${CMAKE_SOURCE_DIR}/glsl2c.py 
+            ${SHADER} 
+            ${OUTPUT_C}
+    DEPENDS ${SHADER} 
+            ${CMAKE_SOURCE_DIR}/glsl2c.py
+    COMMENT "Converting shader ${SHADER} to CPP"
+    VERBATIM
+  )
+
+  list(APPEND SHADER_C_FILES ${OUTPUT_C})
+endforeach()
+
+add_executable(main ${CPP_SOURCES} ${SHADER_C_FILES})
+add_definitions(-g)
+
+target_include_directories(main PRIVATE
+  inc # project
+  res/render # ressources (primitive)
+  lib/glad/include # glad
+  lib/glfw/include # glfw
+  lib/glm # glm
+  lib/imgui # imgui
+  lib/stb # stb
+)
+
+# GLFW (remove all flags)
 set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
 set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
 set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
 add_subdirectory(lib/glfw)
 
-# GLAD
-target_include_directories(main PRIVATE lib/glad/include)
-
-# GLM
-target_include_directories(main PRIVATE lib/glm)
-
-# STB
-target_include_directories(main PRIVATE lib/stb)
-
-target_include_directories(main PRIVATE inc/)
-
 target_link_libraries(main PRIVATE glfw)
 
+# search for OpenGL libs
 find_package(OpenGL REQUIRED)
 target_link_libraries(main PRIVATE OpenGL::GL)
 
-if(APPLE)
-    target_link_libraries(main PRIVATE
-        "-framework Cocoa"
-        "-framework IOKit"
-        "-framework CoreVideo"
-    )
-elseif(WIN32)
-    target_link_libraries(main PRIVATE
-        opengl32
-        gdi32
-        user32
-        shell32
-    )
-elseif(UNIX)
-    target_link_libraries(main PRIVATE
-        X11
-        pthread
-        dl
-        m
-    )
-endif()
+# find OpenGL dependancies
+if(APPLE) # MacOS
+  target_link_libraries(main PRIVATE
+    "-framework Cocoa" "-framework IOKit" "-framework CoreVideo"
+  )
+elseif(WIN32) # Windows
+  target_link_libraries(main PRIVATE
+    opengl32 gdi32 user32 shell32
+  )
+elseif(UNIX) # Most UNIX computer
+  target_link_libraries(main PRIVATE
+    X11 pthread dl m
+  )
+endif()