cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(CloonelJumpProject CXX)

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

include(TargetArch)
include(CTest)
include(FindPkgConfig)
include(CMakeDependentOption)

find_package(PNG REQUIRED)
find_package(Boost 1.55.0 REQUIRED)
find_package(PhysFS 2.0.3)
PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wconversion")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wall -Wextra -pedantic -Wconversion -DWITH_DEBUG_VISUALS -O0")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Wall -Wextra -pedantic -Wconversion -O3")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3")
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CLOONEL_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}")

target_architecture(TARGET_ARCH)
message (STATUS "Target architecture: ${TARGET_ARCH}")

cmake_dependent_option(WITH_BUILTIN_PHYSFS "Force using the version of PhysFS accompanying the code even if a system library is available" OFF "PHYSFS_FOUND" ON)
option(FORCE_OPENGLES "Try to chose the openGL ES renderer if available. Enable this on Raspberry Pi" OFF)
option(RASPBERRY_PI "Compile for Raspberry Pi" OFF)

if (TARGET_ARCH MATCHES "^x86_64$")
	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -msse3")
	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -msse3")
	set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -msse3")
	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -msse3")
endif (TARGET_ARCH MATCHES "^x86_64$")

if (FORCE_OPENGLES OR RASPBERRY_PI)
	target_add_definitions(${PROJECT_NAME} INTERFACE -DFORCE_OPENGLES)
	if (RASPBERRY_PI)
		target_add_definitions(${PROJECT_NAME} INTERFACE -DRASPBERRY_PI)
	endif(RASPBERRY_PI)
endif (FORCE_OPENGLES OR RASPBERRY_PI)

if (WITH_BUILTIN_PHYSFS)
	message(STATUS "Using internal PhysFS")
	set(PHYSFS_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/lib/physfs-2.0.3")
	set(PHYSFS_LIBRARY "physfs")
else(WITH_BUILTIN_PHYSFS)
	message(STATUS "Using system's PhysFS, set WITH_BUILTIN_PHYSFS to on to override this")
endif(WITH_BUILTIN_PHYSFS)

if (RASPBERRY_PI)
	message(STATUS "Will build for Raspberry Pi")
	include_directories(SYSTEM
		/opt/vc/include
		/opt/vc/include/interface/vcos/pthreads
		/opt/vc/include/interface/vmcs_host/linux
	)
	link_directories(
		/opt/vc/lib
	)
endif (RASPBERRY_PI)

add_library(${PROJECT_NAME} INTERFACE)

target_include_directories(${PROJECT_NAME} SYSTEM
	INTERFACE ${Boost_INCLUDE_DIRS}
)

target_include_directories(${PROJECT_NAME}
	INTERFACE "${PROJECT_BINARY_DIR}"
	INTERFACE lib/tree-3.1/src
)

target_compile_definitions(${PROJECT_NAME}
	INTERFACE VWR_STATIC_CAST_RESULTS
	INTERFACE VWR_SIZE_TYPE=uint32_t
	INTERFACE VWR_OUTER_NAMESPACE=cloonel
	INTERFACE ${PNG_DEFINITIONS}
)

configure_file(
	"${PROJECT_SOURCE_DIR}/src/${PROJECT_NAME}Config.h.in"
	"${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.h"
)

if (RASPBERRY_PI)
	target_link_libraries(${PROJECT_NAME}
		bcm_host
	)
endif(RASPBERRY_PI)

if (NOT PHYSFS_FOUND)
	add_subdirectory(lib/physfs-2.0.3)
endif(NOT PHYSFS_FOUND)

add_subdirectory(src/jumping)
add_subdirectory(src/clooneljump)
add_subdirectory(src/cloonelgraphics)
if (BUILD_TESTING)
	add_subdirectory(test/unit)
endif()