CMakeLists.txt

cmake_minimum_required(VERSION 3.16.3 FATAL_ERROR)

# CPM downloader
include(external/cpm.cmake)

# project declaration
project(
  MoBaGEn
  VERSION 0.0.1
  HOMEPAGE_URL "https://infinbrains.com"
  DESCRIPTION "Module Based Game Engine"
)

# Include guards
if(PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
  message(
    FATAL_ERROR
      "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there."
  )
endif()

# compiler checks
include(external/compilerchecks.cmake)

# set output dirs
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/libs)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/libs)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

# set linkage
link_directories(${CMAKE_BINARY_DIR}/libs)
# LINK_DIRECTORIES(${CMAKE_BINARY_DIR}/libs/Debug)

if(EMSCRIPTEN)
  message(STATUS "emscripten build")
  set(CMAKE_CXX_FLAGS
      "${CMAKE_CXX_FLAGS} -Oz -s WASM=2 -s USE_SDL=0 -s ASYNCIFY -s ASSERTIONS=1 -s ALLOW_MEMORY_GROWTH=1"
  )
  set(CMAKE_C_FLAGS
      "${CMAKE_C_FLAGS} -Oz -s WASM=2 -s USE_SDL=0 -s ASYNCIFY -s ASSERTIONS=1 -s ALLOW_MEMORY_GROWTH=1"
  )

  file(GLOB HTML "${CMAKE_CURRENT_SOURCE_DIR}/html/*")
  file(COPY ${HTML} DESTINATION ${CMAKE_BINARY_DIR}/bin/)

  set(ENABLE_TEST_COVERAGE OFF)
endif()

include(cmake/subdirlist.cmake)

include(external/external.cmake)

add_subdirectory(modules)
add_subdirectory(core)

option(ENABLE_TEST_COVERAGE "ENABLE_TEST_COVERAGE" ON)
if(ENABLE_TEST_COVERAGE)
  add_subdirectory(test)
endif()

option(BUILD_EXAMPLES "BUILD_EXAMPLES" ON)
if(BUILD_EXAMPLES)
  add_subdirectory(examples)
endif()

option(ENABLE_DOCUMENTATION "ENABLE_DOCUMENTATION" OFF)
if(ENABLE_DOCUMENTATION)
  add_subdirectory(documentation)
endif()

option(ENABLE_EDITOR "ENABLE_EDITOR" ON)
if(ENABLE_EDITOR)
  add_subdirectory(editor)
endif()

CPMAddPackage(
  NAME CPMLicenses.cmake
  GITHUB_REPOSITORY cpm-cmake/CPMLicenses.cmake
  VERSION 0.0.5
)
write_license_disclaimer("third_party.txt" "${CPM_PACKAGES}")

# todo: follow https://github.com/TheLartians/ModernCppStarter