# Check versions
message(STATUS "CMake version: ${CMAKE_VERSION}")
cmake_minimum_required(VERSION 3.1)
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# Set the project name
set(PNAME Game)
project(${PNAME})

# Set up variables, and find SFML
set(SFML_ROOT root CACHE STRING "User specified path")
set(SFML_INCLUDE_DIR ${SFML_ROOT}/include)
set(SFML_COMPONENTS graphics window system network audio)
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
find_package(SFML 2.1 COMPONENTS ${SFML_COMPONENTS} REQUIRED)
message(STATUS "SFML found: ${SFML_FOUND}")

# Find OpenCL
find_package( OpenCL REQUIRED )
message(STATUS "OpenCL found: ${OPENCL_FOUND}")

# Find GLEW
find_package(GLEW REQUIRED)
message(STATUS "GLEW found: ${GLEW_FOUND}")

# Find OpenGL
find_package( OpenGL REQUIRED)
message(STATUS "OpenGL found: ${OPENGL_FOUND}")

# Include the directories for the main program, GL, CL and SFML's headers
include_directories(${SFML_INCLUDE_DIR})
include_directories(${OpenCL_INCLUDE_DIRS})
include_directories(${OpenGL_INCLUDE_DIRS})
include_directories(include)

# Glob all thr sources into their values
file(GLOB_RECURSE SOURCES "src/*.cpp")
file(GLOB_RECURSE HEADERS "include/*.h" "include/*.hpp")
file(GLOB_RECURSE KERNELS "kernels/*.cl")
file(GLOB_RECURSE SHADERS "shaders/*.vert" "shaders/*.tesc" "shaders/*.tese" "shaders/*.geom" "shaders/*.frag" "shaders/*.comp")


add_executable(${PNAME} ${SOURCES} ${HEADERS} ${KERNELS} ${SHADERS})

# put all the sources into their own filter folders
SOURCE_GROUP("kernels" FILES ${KERNELS}) 
SOURCE_GROUP("headers" FILES ${HEADERS}) 
SOURCE_GROUP("sources" FILES ${SOURCES})
SOURCE_GROUP("shaders" FILES ${SHADERS})


# Link CL, GL, and SFML
target_link_libraries (${PNAME} ${SFML_LIBRARIES} ${SFML_DEPENDENCIES})
target_link_libraries (${PNAME} ${OpenCL_LIBRARY})
target_link_libraries (${PNAME} ${OPENGL_LIBRARIES})
target_link_libraries (${PNAME} ${GLEW_LIBRARIES})

# Setup to use C++11
set_property(TARGET ${PNAME} PROPERTY CXX_STANDARD 11) # Use C++11