cmake_minimum_required(VERSION 3.7)

project(Snake)


#--- SDL2 location on Windows ---
if(WIN32)
    # Specify downloaded SDL2 library folder location
    set(SDL2_FOLDER "${CMAKE_SOURCE_DIR}/SDL2/")

    set(SDL2_INCLUDE_DIRS "${SDL2_FOLDER}/include")
    set(SDL2_LIBS "${SDL2_FOLDER}/lib/x64/SDL2.lib")
    set(SDL2_DLLS "${SDL2_FOLDER}/lib/x64/SDL2.dll")
    set(SDL2_DIR "${SDL2_FOLDER}/cmake/")

    # Specify downloaded SDL2_ttf library folder location
    set(SDL2_TTF_FOLDER "${CMAKE_SOURCE_DIR}/SDL2_ttf/")

    set(SDL2_TTF_INCLUDE_DIRS "${SDL2_TTF_FOLDER}/include")
    set(SDL_TTF_LIBRARIES "${SDL2_TTF_FOLDER}/lib/x64/SDL2_ttf.lib")
    set(SDL2_TTF_LIBS "${SDL2_TTF_FOLDER}/lib/x64/SDL2_ttf.lib")
    set(SDL2_TTF_DLLS "${SDL2_TTF_FOLDER}/lib/x64/SDL2_ttf.dll")
    set(SDL2_TTF_DIR "${SDL2_TTF_FOLDER}/cmake/")
    set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} "${SDL2_TTF_FOLDER}")
endif()
# Note: On Linux, the libraries are found automatically if installed


# --- Locate SDL2 ---
# Uses SDL2_DIR on Windows, on Linux it's found automatically
# Locate SDL2
find_package(SDL2 REQUIRED)

# --- Locate SDL2_ttf ---
if(WIN32)
find_package(SDL2_ttf REQUIRED)
else()
find_package(SDL_ttf REQUIRED)
endif()

#--- Include directories ---
include_directories(${SDL2_INCLUDE_DIRS} ${SDL2_TTF_INCLUDE_DIRS} ./include ./src)


# --- Source files ---
# Add all used source files here:
set(SOURCES
    src/main.cpp
    src/config.c
    src/food.c
    src/game.c
    src/input.c
    src/menu.c
    src/render.c
    src/snake.c
    src/map.c
    src/common.c
    src/sound.c
)


add_executable(Snake ${SOURCES})
target_link_libraries(Snake ${SDL2_LIBRARIES} ${SDL_TTF_LIBRARIES})


# --- Copy SDL2 DLLs to the output folder on Windows ---
if(WIN32)
    foreach(DLL ${SDL2_DLLS} ${SDL2_TTF_DLLS})
        add_custom_command(TARGET Snake POST_BUILD COMMAND
            ${CMAKE_COMMAND} -E copy_if_different ${DLL} $<TARGET_FILE_DIR:Snake>)
    endforeach()
endif()