#
 #             ORXONOX - the hottest 3D action shooter ever to exist
 #                             > www.orxonox.net <
 #
 #        This program is free software; you can redistribute it and/or
 #         modify it under the terms of the GNU General Public License
 #        as published by the Free Software Foundation; either version 2
 #            of the License, or (at your option) any later version.
 #
 #       This program is distributed in the hope that it will be useful,
 #        but WITHOUT ANY WARRANTY; without even the implied warranty of
 #        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #                 GNU General Public License for more details.
 #
 #   You should have received a copy of the GNU General Public License along
 #      with this program; if not, write to the Free Software Foundation,
 #     Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #

################ Various Options ################

# various macro includes
INCLUDE(FlagUtilities)
INCLUDE(GenerateToluaBindings)
INCLUDE(InstallUtilities)
INCLUDE(SourceFileUtilities)

# Use TinyXML++
ADD_COMPILER_FLAGS("-DTIXML_USE_TICPP")
# OIS dynamic linking requires macro definition, at least for Windows
ADD_COMPILER_FLAGS("-DOIS_DYNAMIC_LIB")
# Tolua binding speedup if required
ADD_COMPILER_FLAGS("-DTOLUA_RELEASE" Release MinSizeRel TOLUA_PARSER_RELEASE)

################ OrxonoxConfig.h ################

# Check endianness
INCLUDE(TestBigEndian)
TEST_BIG_ENDIAN(ORXONOX_BIG_ENDIAN)
IF(NOT ORXONOX_BIG_ENDIAN)
  SET(ORXONOX_LITTLE_ENDIAN TRUE)
ENDIF()

# 32/64 bit system check
IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
  SET(ORXONOX_ARCH_64 TRUE)
ELSE()
  SET(ORXONOX_ARCH_32 TRUE)
ENDIF()

# Platforms
SET(ORXONOX_PLATFORM_WINDOWS ${WIN32})
SET(ORXONOX_PLATFORM_APPLE ${APPLE})
SET(ORXONOX_PLATFORM_UNIX ${UNIX})
IF(UNIX AND NOT APPLE)
  SET(ORXONOX_PLATFORM_LINUX TRUE)
ENDIF()

# Check __forceinline
INCLUDE(CheckCXXSourceCompiles)
SET(_source "int main() { return 0; } __forceinline void test() { return; }")
CHECK_CXX_SOURCE_COMPILES("${_source}" HAVE_FORCEINLINE)

# Check ciso646 include (operators in words)
INCLUDE(CheckIncludeFileCXX)
CHECK_INCLUDE_FILE_CXX(iso646.h HAVE_ISO646_H)

SET(GENERATED_FILE_COMMENT
   "DO NOT EDIT THIS FILE!
    It has been automatically generated by CMake from OrxonoxConfig.h.in")
# Copy and configure OrxonoxConfig which gets included in every file
CONFIGURE_FILE(OrxonoxConfig.h.in ${CMAKE_CURRENT_BINARY_DIR}/OrxonoxConfig.h)


############## Include Directories ##############

# Set the search paths for include files
INCLUDE_DIRECTORIES(
  # External
  ${OGRE_INCLUDE_DIR}
  ${CEGUI_INCLUDE_DIR}
  ${ENET_INCLUDE_DIR}
  ${Boost_INCLUDE_DIRS}
  ${OPENAL_INCLUDE_DIRS}
  ${ALUT_INCLUDE_DIR}
  ${VORBIS_INCLUDE_DIR}
  ${OGG_INCLUDE_DIR}
  ${LUA_INCLUDE_DIR}
  ${TCL_INCLUDE_PATH}
  ${DIRECTX_INCLUDE_DIR}
  ${ZLIB_INCLUDE_DIR}

  # All library includes are prefixed with the path to avoid conflicts
  ${CMAKE_CURRENT_SOURCE_DIR}
  # Bullet headers really need the include directory
  ${CMAKE_CURRENT_SOURCE_DIR}/bullet
  # Convenience directory
  ${CMAKE_CURRENT_SOURCE_DIR}/orxonox
  # OrxonoxConfig.h
  ${CMAKE_CURRENT_BINARY_DIR}
  # Tolua bind files for Core
  ${CMAKE_CURRENT_BINARY_DIR}/core/${CMAKE_CFG_INTDIR}
  # Tolua bind files for Orxonox
  ${CMAKE_CURRENT_BINARY_DIR}/orxonox/${CMAKE_CFG_INTDIR}
)


################ Sub Directories ################

# Third party libraries
ADD_SUBDIRECTORY(tolua)

# Include CEGUILua if not requested otherwise
IF(CEGUILUA_USE_INTERNAL_LIBRARY)
  IF(NOT IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/ceguilua/ceguilua-${CEGUI_VERSION})
    MESSAGE(FATAL_ERROR "CEGUILua version not found in src folder. Update list of supported versions in LibraryConfig.cmake!")
  ENDIF()

  INCLUDE_DIRECTORIES(ceguilua/ceguilua-${CEGUI_VERSION})
  ADD_SUBDIRECTORY(ceguilua)
ENDIF()

ADD_SUBDIRECTORY(bullet)
ADD_SUBDIRECTORY(cpptcl)
ADD_SUBDIRECTORY(ogreceguirenderer)
ADD_SUBDIRECTORY(ois)
ADD_SUBDIRECTORY(tinyxml)

# Orxonox code
ADD_SUBDIRECTORY(util)
ADD_SUBDIRECTORY(core)
#ADD_SUBDIRECTORY(audio)
ADD_SUBDIRECTORY(network)
ADD_SUBDIRECTORY(orxonox)