CMakeLists.txt

# For descent FetchContent()
cmake_minimum_required(VERSION 3.14)

project(fheroes2 VERSION 0.9.9 LANGUAGES C CXX)
set(CMAKE_CXX_STANDARD 11)

if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.12")
    cmake_policy(SET CMP0074 NEW)
endif()

include(GNUInstallDirs)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

# Compile-time options
set(SDL_VERSIONS SDL SDL2)
set(USE_SDL_VERSION SDL2 CACHE STRING "SDL version")
set_property(CACHE USE_SDL_VERSION PROPERTY STRINGS ${SDL_VERSIONS})

option(ENABLE_IMAGE   "Enable SDL/SDL2 Image support (requires libpng)" ON)
option(ENABLE_TOOLS   "Enable additional tools" OFF)
option(GET_HOMM2_DEMO "Fetch and install HoMM II demo data" OFF)

option(USE_SYSTEM_LIBSMACKER "Use system libsmacker instead of bundled version" OFF)

option(FHEROES2_STRICT_COMPILATION "Enable -Werror strict compilation" OFF)

set(CONFIGURE_FHEROES2_DATA "${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}" CACHE STRING "System fheroes2 game directory")

# Find libraries and enable/disable features
find_package(${USE_SDL_VERSION} REQUIRED)
find_package(${USE_SDL_VERSION}_mixer REQUIRED)
find_package(ZLIB REQUIRED)
find_package(Threads)

if(ENABLE_IMAGE)
	find_package(${USE_SDL_VERSION}_image REQUIRED)
	find_package(PNG REQUIRED)
endif(ENABLE_IMAGE)

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})

add_subdirectory(src)

file(GLOB H2D_FILES ${CMAKE_SOURCE_DIR}/files/data/*.h2d)
install(
	FILES ${H2D_FILES}
	DESTINATION ${CONFIGURE_FHEROES2_DATA}/files/data
	)
install(
	FILES docs/README.txt LICENSE changelog.txt
	DESTINATION ${CMAKE_INSTALL_DOCDIR}
	)

if(GET_HOMM2_DEMO)
	include(FetchContent)
	set(FETCHCONTENT_QUIET OFF)
	FetchContent_Declare(
		demodata
		URL https://archive.org/download/HeroesofMightandMagicIITheSuccessionWars_1020/h2demo.zip
		URL_HASH SHA256=12048c8b03875c81e69534a3813aaf6340975e77b762dc1b79a4ff5514240e3c
		)
	FetchContent_MakeAvailable(demodata)
	file(COPY ${demodata_SOURCE_DIR}/DATA/ DESTINATION data PATTERN *.*)
	file(COPY ${demodata_SOURCE_DIR}/MAPS/ DESTINATION maps PATTERN *.*)

	install(DIRECTORY ${demodata_SOURCE_DIR}/DATA/ DESTINATION
		${CONFIGURE_FHEROES2_DATA}/data FILES_MATCHING PATTERN *.*)
	install(DIRECTORY ${demodata_SOURCE_DIR}/MAPS/ DESTINATION
		${CONFIGURE_FHEROES2_DATA}/maps FILES_MATCHING PATTERN *.*)
endif(GET_HOMM2_DEMO)

if(WIN32)
	install(
		FILES script/demo/download_demo_version.bat script/demo/download_demo_version.ps1
		DESTINATION ${CMAKE_INSTALL_DOCDIR}/demo
		)
	install(
		FILES script/homm2/extract_homm2_resources.bat script/homm2/extract_homm2_resources.ps1
		DESTINATION ${CMAKE_INSTALL_DOCDIR}/homm2
		)
else(WIN32)
	install(
		FILES script/demo/download_demo_version.sh
		PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ GROUP_EXECUTE GROUP_READ WORLD_EXECUTE WORLD_READ
		DESTINATION ${CMAKE_INSTALL_DOCDIR}/demo
		)
	install(
		FILES script/homm2/extract_homm2_resources.sh
		PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ GROUP_EXECUTE GROUP_READ WORLD_EXECUTE WORLD_READ
		DESTINATION ${CMAKE_INSTALL_DOCDIR}/homm2
		)
endif(WIN32)