CMakeLists.txt

cmake_minimum_required(VERSION 3.12...3.27)
project(spry LANGUAGES C CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(BOX2D
  src/deps/box2d/collision/b2_broad_phase.cpp
  src/deps/box2d/collision/b2_chain_shape.cpp
  src/deps/box2d/collision/b2_circle_shape.cpp
  src/deps/box2d/collision/b2_collide_circle.cpp
  src/deps/box2d/collision/b2_collide_edge.cpp
  src/deps/box2d/collision/b2_collide_polygon.cpp
  src/deps/box2d/collision/b2_collision.cpp
  src/deps/box2d/collision/b2_distance.cpp
  src/deps/box2d/collision/b2_dynamic_tree.cpp
  src/deps/box2d/collision/b2_edge_shape.cpp
  src/deps/box2d/collision/b2_polygon_shape.cpp
  src/deps/box2d/collision/b2_time_of_impact.cpp
  src/deps/box2d/common/b2_block_allocator.cpp
  src/deps/box2d/common/b2_draw.cpp
  src/deps/box2d/common/b2_math.cpp
  src/deps/box2d/common/b2_settings.cpp
  src/deps/box2d/common/b2_stack_allocator.cpp
  src/deps/box2d/common/b2_timer.cpp
  src/deps/box2d/dynamics/b2_body.cpp
  src/deps/box2d/dynamics/b2_chain_circle_contact.cpp
  src/deps/box2d/dynamics/b2_chain_polygon_contact.cpp
  src/deps/box2d/dynamics/b2_circle_contact.cpp
  src/deps/box2d/dynamics/b2_contact.cpp
  src/deps/box2d/dynamics/b2_contact_manager.cpp
  src/deps/box2d/dynamics/b2_contact_solver.cpp
  src/deps/box2d/dynamics/b2_distance_joint.cpp
  src/deps/box2d/dynamics/b2_edge_circle_contact.cpp
  src/deps/box2d/dynamics/b2_edge_polygon_contact.cpp
  src/deps/box2d/dynamics/b2_fixture.cpp
  src/deps/box2d/dynamics/b2_friction_joint.cpp
  src/deps/box2d/dynamics/b2_gear_joint.cpp
  src/deps/box2d/dynamics/b2_island.cpp
  src/deps/box2d/dynamics/b2_joint.cpp
  src/deps/box2d/dynamics/b2_motor_joint.cpp
  src/deps/box2d/dynamics/b2_mouse_joint.cpp
  src/deps/box2d/dynamics/b2_polygon_circle_contact.cpp
  src/deps/box2d/dynamics/b2_polygon_contact.cpp
  src/deps/box2d/dynamics/b2_prismatic_joint.cpp
  src/deps/box2d/dynamics/b2_pulley_joint.cpp
  src/deps/box2d/dynamics/b2_revolute_joint.cpp
  src/deps/box2d/dynamics/b2_weld_joint.cpp
  src/deps/box2d/dynamics/b2_wheel_joint.cpp
  src/deps/box2d/dynamics/b2_world.cpp
  src/deps/box2d/dynamics/b2_world_callbacks.cpp
  src/deps/box2d/rope/b2_rope.cpp
)

set(LUASOCKET
  src/deps/luasocket/auxiliar.c
  src/deps/luasocket/buffer.c
  src/deps/luasocket/compat.c
  src/deps/luasocket/except.c
  src/deps/luasocket/inet.c
  src/deps/luasocket/io.c
  src/deps/luasocket/luasocket.c
  src/deps/luasocket/mime.c
  src/deps/luasocket/options.c
  src/deps/luasocket/select.c
  src/deps/luasocket/tcp.c
  src/deps/luasocket/timeout.c
  src/deps/luasocket/udp.c
)

message(STATUS "Platform flags: EMSCRIPTEN=${EMSCRIPTEN}, WIN32=${WIN32}, UNIX=${UNIX}, MINGW=${MINGW}, MSYS=${MSYS}, ANDROID=${ANDROID}")
option(USE_NETWORK "Build with HTTP module and luasocket" ON)
option(USE_NUKLEAR "Build with Nuklear UI module" ON)
add_compile_definitions(NDEBUG)

if(EMSCRIPTEN)
  message(STATUS "Detected platform: Emscripten")
  set(LUASOCKET)
  add_compile_definitions(LUA_USE_LONGJMP LUA_USE_POSIX)
  set(CFLAGS -fno-exceptions)
  set(LFLAGS -lpthread -sASYNCIFY -sALLOW_MEMORY_GROWTH -sUSE_WEBGL2)

elseif(ANDROID)
  message(STATUS "Detected platform: Android")
  set(LUASOCKET)
  set(USE_NETWORK OFF)
  add_compile_definitions(NO_NETWORK LUA_USE_LONGJMP LUA_USE_POSIX)
  set(CFLAGS -fno-exceptions)
  set(LFLAGS android log EGL GLESv3)

elseif(MINGW)
  message(STATUS "Detected platform: MinGW")
  if(USE_NETWORK)
    set(LUASOCKET ${LUASOCKET} src/deps/luasocket/wsocket.c)
  endif()
  add_compile_definitions(LUA_USE_LONGJMP)
  set(LFLAGS -lws2_32 -lxinput)

elseif(WIN32)
  message(STATUS "Detected platform: Windows")
  if(USE_NETWORK)
    set(LUASOCKET ${LUASOCKET} src/deps/luasocket/wsocket.c)
  endif()
  add_compile_definitions(LUA_USE_LONGJMP)
  set(LFLAGS ws2_32 xinput)

elseif(UNIX)
  message(STATUS "Detected platform: Unix")
  option(USE_WAYLAND "Build with Wayland instead of X11" OFF)
  option(USE_DRM "Build with DRM/KMS (no display server, direct rendering)" OFF)
  if(USE_NETWORK)
    set(LUASOCKET
      ${LUASOCKET}
      src/deps/luasocket/serial.c
      src/deps/luasocket/unix.c
      src/deps/luasocket/unixdgram.c
      src/deps/luasocket/unixstream.c
      src/deps/luasocket/usocket.c
    )
  endif()
  add_compile_definitions(LUA_USE_LINUX)
  if(USE_WAYLAND)
    message(STATUS "Display server: Wayland")
    add_compile_definitions(SOKOL_WAYLAND)
    add_compile_definitions(SOKOL_USE_GLES3)
    set(LFLAGS -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon -lEGL -lGLESv2 -lasound -ldl -lpthread -lm)
  elseif(USE_DRM)
    message(STATUS "Display server: DRM/KMS")
    add_compile_definitions(SOKOL_DRM)
    add_compile_definitions(SOKOL_USE_GLES3)
    include_directories(/usr/include/libdrm)
    set(LFLAGS -ldrm -lgbm -lEGL -lGLESv2 -linput -ludev -lxkbcommon -lasound -ldl -lpthread -lm)
  else()
    message(STATUS "Display server: X11")
    set(LFLAGS -lX11 -lXi -lXcursor -lasound -lGL -ldl -lpthread -lm)
  endif()
endif()

if(NOT USE_NETWORK)
  message(STATUS "Network disabled: skipping HTTP module and luasocket")
  set(LUASOCKET)
  add_compile_definitions(NO_NETWORK)
else()
  message(STATUS "Network enabled: HTTP module and luasocket")
endif()

if(NOT USE_NUKLEAR)
  message(STATUS "Nuklear disabled: skipping Nuklear UI module")
  add_compile_definitions(NO_NUKLEAR)
else()
  message(STATUS "Nuklear UI module enabled")  
endif()

file(GLOB SOURCES CONFIGURE_DEPENDS src/*.cpp src/*.h)

if(ANDROID)
  add_library(${PROJECT_NAME} SHARED ${SOURCES} ${BOX2D} ${LUASOCKET})
else()
  add_executable(${PROJECT_NAME} ${SOURCES} ${BOX2D} ${LUASOCKET})
endif()

target_include_directories(${PROJECT_NAME} PRIVATE src/deps/box2d src/deps/lua)
target_compile_options(${PROJECT_NAME} PRIVATE ${CFLAGS})
target_link_libraries(${PROJECT_NAME} PRIVATE ${LFLAGS})