CMakeLists.txt

cmake_minimum_required(VERSION 3.8)
project(SimpleRenderEngineProject CXX)

#set( CMAKE_VERBOSE_MAKEFILE on )

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

set (CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")

#########################################################
# FIND OPENGL
#########################################################
IF(APPLE)
    INCLUDE_DIRECTORIES ( /System/Library/Frameworks )
    FIND_LIBRARY(OpenGL_LIBRARY OpenGL )
    MARK_AS_ADVANCED (OpenGL_LIBRARY)
    SET(EXTRA_LIBS ${OpenGL_LIBRARY})
ELSE (APPLE)
    find_package(OpenGL REQUIRED)
    include_directories(${OPENGL_INCLUDE_DIR})
    SET(EXTRA_LIBS ${OPENGL_LIBRARY})
ENDIF (APPLE)

IF (UNIX)
    find_package(SDL2_mixer REQUIRED)
    include_directories(${SDL2MIXER_INCLUDE_DIR})
ELSE (UNIX)
	SET(SDL2_mixer_include "${CMAKE_SOURCE_DIR}/thirdparty/Win/SDL2_mixer-2.0.4/include" CACHE STRING "Location of SDL_mixer.h")
    include_directories(${SDL2_mixer_include})
	SET(SDL2MIXER_LIBRARY "${CMAKE_SOURCE_DIR}/thirdparty/Win/SDL2_mixer-2.0.4/lib/x86/SDL2_mixer.lib" CACHE STRING "Location of SDL2_mixer.lib")  
ENDIF(UNIX)

#### Box2D #####
IF(APPLE)
    INCLUDE_DIRECTORIES ( thirdparty/macOS/Box2D/include )
    SET(Box2D_LIBRARY_DEBUG ${CMAKE_SOURCE_DIR}/thirdparty/macOS/Box2D/lib/libBox2D.a )
	SET(Box2D_LIBRARY_REL ${CMAKE_SOURCE_DIR}/thirdparty/macOS/Box2D/lib/libBox2D.a )
ELSE (APPLE)
    IF (UNIX)
        INCLUDE_DIRECTORIES ( thirdparty/Linux/Box2D/include )
        SET(Box2D_LIBRARY_DEBUG ${CMAKE_SOURCE_DIR}/thirdparty/Linux/Box2D/lib/libBox2D.a )
        SET(Box2D_LIBRARY_REL ${CMAKE_SOURCE_DIR}/thirdparty/Linux/Box2D/lib/libBox2D.a )
    ELSE (UNIX)
	    SET(Box2D_include "${CMAKE_SOURCE_DIR}/thirdparty/Win/Box2D/include" CACHE STRING "Location of Box2D/Box2D.h")
        INCLUDE_DIRECTORIES (${Box2D_include})
	    SET(Box2D_LIBRARY_DEBUG "${CMAKE_SOURCE_DIR}/thirdparty/Win/Box2D/lib/Box2D_d.lib" CACHE STRING "Location of Box2D_d.lib")
	    SET(Box2D_LIBRARY_REL "${CMAKE_SOURCE_DIR}/thirdparty/Win/Box2D/lib/Box2D.lib" CACHE STRING "Location of Box2D.lib")
    ENDIF(UNIX)
ENDIF (APPLE)

#### Lua #####
IF(APPLE)
    SET(LUA_INCLUDE_DIR thirdparty/macOS/Lua/include)
    INCLUDE_DIRECTORIES (${LUA_INCLUDE_DIR})
    SET(LUA_LIBRARIES ${CMAKE_SOURCE_DIR}/thirdparty/macOS/Lua/lib/liblua.a )
ELSE (APPLE)
    IF (UNIX)
        find_package(Lua REQUIRED)
        if(LUA_FOUND)
            INCLUDE_DIRECTORIES (${LUA_INCLUDE_DIR})
        ENDIF(LUA_FOUND)
    ELSE (UNIX)
        SET(LUA_INCLUDE_DIR thirdparty/Win/Lua/include)
        INCLUDE_DIRECTORIES (${LUA_INCLUDE_DIR})
        SET(LUA_LIBRARIES ${CMAKE_SOURCE_DIR}/thirdparty/Win/Lua/lib/lua5.3.0-static.lib )
    ENDIF(UNIX)
ENDIF (APPLE)

option(USE_assimp "Include assimp" OFF)
IF (USE_assimp)
    find_package(assimp REQUIRED)
    INCLUDE_DIRECTORIES (${assimp_INCLUDE_DIRS})

ENDIF(USE_assimp)

# add bullet
#   BULLET_FOUND - Was bullet found
#   BULLET_INCLUDE_DIRS - the Bullet include directories
#   BULLET_LIBRARIES - Link to this, by default it includes
#                      all bullet components (Dynamics,
#                      Collision, LinearMath, & SoftBody)
#
#  For MacOS copy Frameworks in ./thirdparty/macOS/Bullet/ to /Library/Frameworks/
#  And set
#    BULLET_INCLUDE_DIR:PATH=/Library/Frameworks/BulletCollision.framework/Headers;/Library/Frameworks/BulletDynamics.framework/Headers;/Library/Frameworks/LinearMath.framework/Headers
#    BULLET_COLLISION_LIBRARY:FILEPATH=/Library/Frameworks/BulletCollision.framework
#    etc
#
#  If you're using Homebrew on MacOS
#    Use the following instead:
#    BULLET_INCLUDE_DIR:PATH=/usr/local/Cellar/bullet/2.87_1/include
#    BULLET_DYNAMICS_LIBRARY:PATH=/usr/local/Cellar/bullet/2.87_1/Frameworks/BulletDynamics.framework
#    BULLET_COLLISION_LIBRARY:PATH=/usr/local/Cellar/bullet/2.87_1/Frameworks/BulletCollision.framework
#    BULLET_MATH_LIBRARY:PATH=/usr/local/Cellar/bullet/2.87_1/Frameworks/LinearMath.framework
#    BULLET_DYNAMICS_LIBRARY_DEBUG:PATH=/usr/local/Cellar/bullet/2.87_1/Frameworks/BulletDynamics.framework
#    BULLET_COLLISION_LIBRARY_DEBUG:PATH=/usr/local/Cellar/bullet/2.87_1/Frameworks/BulletCollision.framework
#    BULLET_MATH_LIBRARY_DEBUG:PATH=/usr/local/Cellar/bullet/2.87_1/Frameworks/LinearMath.framework
#
option(USE_BULLET "Include bullet example" OFF)
IF (USE_BULLET)
IF (WIN32)
    SET(BULLET_DYNAMICS_LIBRARY  ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/lib/BulletDynamics.lib CACHE PATH "")
    SET(BULLET_COLLISION_LIBRARY ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/lib/BulletCollision.lib CACHE PATH  "")
    SET(BULLET_MATH_LIBRARY      ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/lib/LinearMath.lib CACHE PATH  "") 
    SET(BULLET_DYNAMICS_LIBRARY_DEBUG  ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/lib/BulletDynamics_d.lib CACHE PATH  "")
    SET(BULLET_COLLISION_LIBRARY_DEBUG ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/lib/BulletCollision_d.lib CACHE PATH  "")
    SET(BULLET_MATH_LIBRARY_DEBUG      ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/lib/LinearMath_d.lib CACHE PATH  "") 
    SET(BULLET_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/thirdparty/Win/Bullet/include)
ELSE (WIN32) 
    find_package(Bullet REQUIRED)
ENDIF(WIN32)
    include_directories(${BULLET_INCLUDE_DIRS})
ENDIF(USE_BULLET)

#### Sol #####
INCLUDE_DIRECTORIES (thirdparty/All/include)

set(OPENVR_LIB)
IF (USE_OPENVR)
    find_package(OpenVR REQUIRED)
    include_directories(${OPENVR_INCLUDE_DIRS})
    IF(UNIX)
        add_definitions(-DSRE_OPENVR)
    ELSE(UNIX)
        add_definitions(/DSRE_OPENVR)
    ENDIF(UNIX)
    set(OPENVR_LIB "${OPENVR_ROOT_DIR}/lib/${OPENVR_PLATFORM}/openvr_api.lib")
ENDIF(USE_OPENVR)


# all_libs contains a list of all libraries that should be linked
# for bullet support add ${BULLET_LIBRARIES}
set(all_libs ${EXTRA_LIBS} ${SDL2_LIBRARY} ${SDL2MIXER_LIBRARY} ${LUA_LIBRARIES} SRE debug ${Box2D_LIBRARY_DEBUG} optimized ${Box2D_LIBRARY_REL} ${OPENVR_LIB})
IF (USE_BULLET)
	set(all_libs optimized  ${all_libs} optimized  ${BULLET_DYNAMICS_LIBRARY} optimized  ${BULLET_COLLISION_LIBRARY} optimized  ${BULLET_MATH_LIBRARY} debug ${BULLET_DYNAMICS_LIBRARY_DEBUG} debug ${BULLET_COLLISION_LIBRARY_DEBUG} debug ${BULLET_MATH_LIBRARY_DEBUG} )
ENDIF(USE_BULLET)
IF (USE_assimp)
	set(all_libs ${all_libs} ${assimp_LIBRARIES})
ENDIF(USE_assimp)


# Create DllFileList on Windows
IF (WIN32)
    SET(SDL2_mixer_dll_path "${CMAKE_SOURCE_DIR}/thirdparty/Win/SDL2_mixer-2.0.4/lib/x86" CACHE PATH "Where the SDL2_mixer.dll can be found")
    SET(DLLFileList "${SDL2_mixer_dll_path}/SDL2_mixer.dll" "${SDL2_mixer_dll_path}/libvorbisfile-3.dll"  "${SDL2_mixer_dll_path}/libvorbis-0.dll"  "${SDL2_mixer_dll_path}/libogg-0.dll"  "${SDL2_mixer_dll_path}/libmodplug-1.dll"  "${SDL2_mixer_dll_path}/libFLAC-8.dll"   "${SDL2_mixer_dll_path}/libmpg123-0.dll")
ENDIF(WIN32)

# build sre library
add_subdirectory(submodules/SimpleRenderEngine)
include_directories(${SRE_INCLUDE})

# build targets using sre
SET(USE_SRE_PROJECT_EXAMPLES ON CACHE BOOL "Enable project examples for SRE")
if (USE_SRE_PROJECT_EXAMPLES)
add_subdirectory(project)
endif(USE_SRE_PROJECT_EXAMPLES)