switching to cmake; alyson setup

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+
+project(colysis 
+    LANGUAGES C CXX
+    VERSION 0.0.1
+)
+
+# Set C/C++ standards
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_C_EXTENSIONS OFF)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Set compiler flags
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)               # Generate compile commands (useful for IDEs)
+set(USE_FOLDERS ON)                                 # Organize targets into folders (for IDEs)
+set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)      # Build static libraries by default
+
+
+include(FetchContent)
+
+# Raylib 5.5 
+FetchContent_Declare(
+  raylib
+  GIT_REPOSITORY https://github.com/raysan5/raylib.git
+  GIT_TAG        5.5
+)
+
+FetchContent_MakeAvailable(raylib)
+
+# Flecs
+FetchContent_Declare(
+  flecs
+  GIT_REPOSITORY https://github.com/SanderMertens/flecs.git
+  GIT_TAG        v4.0.4
+)
+
+FetchContent_MakeAvailable(flecs)
+
+## alyson engine (needs flecs and raylib)
+set(ASSETS_PATH "${CMAKE_CURRENT_SOURCE_DIR}/assets/")
+add_subdirectory(alyson)
+
+
+## Colysis .game
+
+include(cmake/utils.cmake)
+
+# Get files in src/ and add them to the executable
+
+find_files(colysis_src src cpp hpp cxx hxx c h)
+add_executable(colysis
+  ${colysis_src}
+)
+
+target_link_libraries(colysis
+  raylib
+  flecs::flecs_static
+  alyson
+)
+
+target_include_directories(colysis PUBLIC include
+  #${ALYSON_INCLUDE_DIR}
+)
+
+# put the assets folder path as a C preprocessor define
+target_compile_definitions(colysis PRIVATE ASSETS_PATH="${ASSETS_PATH}")
+
+put_targets_into_folder(FOLDER "thid_party" TARGETS raylib flecs::flecs_static)