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path: root/CMakeLists.txt
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cmake_minimum_required(VERSION 3.27)

cmake_policy(SET CMP0135 NEW)

project(pke VERSION 0.0)
set(PKE_VERSION ${PROJECT_VERSION})

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED True)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -pthread")

set(PKE_SOURCE_FILES
	src/vendor/pk.h
	src/vendor/pkh_include.cpp
	src/arg-handler.hpp
	src/arg-handler.cpp
	src/array.hpp
	src/bucketed-array.hpp
	src/camera.hpp
	src/camera.cpp
	src/components.hpp
	src/ecs.hpp
	src/ecs.cpp
	src/entities.hpp
	src/entities.cpp
	src/event.hpp
	src/event.cpp
	src/game.hpp
	src/game.cpp
	src/game-settings.hpp
	src/game-settings.cpp
	src/game-type-defs.hpp
	src/helpers.hpp
	src/helpers.cpp
	src/level-types.hpp
	src/level-types.cpp
	src/level.hpp
	src/level.cpp
	src/math-helpers.hpp
	src/math-helpers.cpp
	src/dynamic-array.hpp
	src/dynamic-array.cpp
	src/asset-manager.hpp
	src/asset-manager.cpp
	src/physics.hpp
	src/physics.cpp
	src/player-input.hpp
	src/player-input.cpp
	src/plugins.hpp
	src/plugins.cpp
	src/plugin-types.hpp
	src/project.hpp
	src/project.cpp
	src/project-settings.hpp
	src/project-settings.cpp
	src/static/cube.hpp
	src/static/cube.cpp
	src/static/missing-texture.hpp
	src/thread_pool.hpp
	src/thread_pool.cpp
  src/vendor/cgltf-include.hpp
  src/vendor/cgltf-include.cpp
	src/vendor/glm_include.hpp
  src/vendor/stb_image_include.hpp
  src/vendor/stb_image_include.cpp
	src/vendor/tinyfiledialogs/tinyfiledialogs.h
	src/vendor/tinyfiledialogs/tinyfiledialogs.c
	src/window.hpp
	src/window.cpp
	src/window-types.hpp
)

include(FetchContent)
FetchContent_Declare(
    imguidocked
    URL https://github.com/ocornut/imgui/archive/762ec445e63a95c1545b18b28d528f8ce38a9afd.zip
)

FetchContent_GetProperties(imguidocked)
if(NOT imguidocked_POPULATED)
  FetchContent_Populate(imguidocked)
endif()

set(ImGuiDockedFiles 
    ${imguidocked_SOURCE_DIR}/imconfig.h
    ${imguidocked_SOURCE_DIR}/imgui.cpp
    ${imguidocked_SOURCE_DIR}/imgui.h
    ${imguidocked_SOURCE_DIR}/imgui_demo.cpp
    ${imguidocked_SOURCE_DIR}/imgui_draw.cpp
    ${imguidocked_SOURCE_DIR}/imgui_internal.h
    ${imguidocked_SOURCE_DIR}/imgui_tables.cpp
    ${imguidocked_SOURCE_DIR}/imgui_widgets.cpp
    ${imguidocked_SOURCE_DIR}/imstb_rectpack.h
    ${imguidocked_SOURCE_DIR}/imstb_textedit.h
    ${imguidocked_SOURCE_DIR}/imstb_truetype.h
    ${imguidocked_SOURCE_DIR}/backends/imgui_impl_glfw.cpp
    ${imguidocked_SOURCE_DIR}/backends/imgui_impl_glfw.h
    ${imguidocked_SOURCE_DIR}/backends/imgui_impl_vulkan.cpp
    ${imguidocked_SOURCE_DIR}/backends/imgui_impl_vulkan.h
    ${imguidocked_SOURCE_DIR}/misc/cpp/imgui_stdlib.cpp
    ${imguidocked_SOURCE_DIR}/misc/cpp/imgui_stdlib.h
)
add_library(imguidocked ${ImGuiDockedFiles})
target_include_directories(imguidocked PUBLIC ${imguidocked_SOURCE_DIR})
install(
	TARGETS imguidocked
	RUNTIME DESTINATION bin
	LIBRARY DESTINATION lib
	ARCHIVE DESTINATION lib
)

find_package(Vulkan REQUIRED)
if (Vulkan_FOUND)
    message(STATUS "Vulkan found: " ${Vulkan_INCLUDE_DIR})
endif (Vulkan_FOUND)

add_library(pke
	${PKE_SOURCE_FILES}
)

if (Vulkan_FOUND)
	target_link_libraries(pke PUBLIC ${Vulkan_LIBRARIES})
	target_include_directories(pke PUBLIC ${Vulkan_INCLUDE_DIR})
endif (Vulkan_FOUND)

set(SHADER_OUTPUT_DIR ${PROJECT_BINARY_DIR}/assets/shaders)
set(SHADER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/assets/shaders)
file(MAKE_DIRECTORY ${SHADER_OUTPUT_DIR})
set(SHADERS 
	${SHADER_DIR}/present.vert
	${SHADER_DIR}/present.frag
	${SHADER_DIR}/vert.vert
	${SHADER_DIR}/texture.frag
)

foreach(SHADER IN LISTS SHADERS)
    get_filename_component(FILENAME ${SHADER} NAME)
    message(STATUS "Before Shader Compile: ${FILENAME}")
    add_custom_command(OUTPUT ${SHADER_OUTPUT_DIR}/${FILENAME}.spv
        COMMAND ${Vulkan_GLSLC_EXECUTABLE} ${SHADER} -o ${SHADER_OUTPUT_DIR}/${FILENAME}.spv
        DEPENDS ${SHADER}
        COMMENT "Compiling ${FILENAME}")
    list(APPEND SPV_SHADERS ${SHADER_OUTPUT_DIR}/${FILENAME}.spv)
endforeach()

add_custom_target(shaders ALL DEPENDS ${SPV_SHADERS})

find_package(PkgConfig REQUIRED)
pkg_search_module(GLFW REQUIRED glfw3)
if (GLFW_FOUND)
	message(STATUS "GLFW found: " ${GLFW_INCLUDE_DIR})
	target_link_libraries(pke PUBLIC ${GLFW_LIBRARIES})
	target_include_directories(pke PUBLIC ${GLFW_INCLUDE_DIR})
endif (GLFW_FOUND)

find_package(glm REQUIRED)
if (glm_FOUND)
	message(STATUS "glm found: " ${glm_INCLUDE_DIR})
	target_link_libraries(pke PUBLIC ${glm_LIBRARIES})
	target_include_directories(pke PUBLIC ${glm_INCLUDE_DIR})
endif (glm_FOUND)

FetchContent_Declare(stb URL https://github.com/nothings/stb/archive/5736b15f7ea0ffb08dd38af21067c314d6a3aae9.zip)
FetchContent_MakeAvailable(stb)
target_include_directories(pke PUBLIC "${PROJECT_BINARY_DIR}/_deps/stb-src")

FetchContent_Declare(cgltf URL https://github.com/jkuhlmann/cgltf/archive/271614ce5fa8bed6daf3bc824d12a3a652ebdb15.zip)
FetchContent_MakeAvailable(cgltf)
target_include_directories(pke PUBLIC "${PROJECT_BINARY_DIR}/_deps/cgltf-src")

FetchContent_Declare(bullet
	GIT_REPOSITORY    https://github.com/bulletphysics/bullet3.git
	GIT_TAG           3.25
	OVERRIDE_FIND_PACKAGE
)
FetchContent_GetProperties(bullet)
if(NOT bullet_POPULATED)
	set(BUILD_BULLET2_DEMOS 0 CACHE STRING "" FORCE)
	set(BUILD_CPU_DEMOS 0 CACHE STRING "" FORCE)
	set(BUILD_UNIT_TESTS 0 CACHE STRING "" FORCE)
	set(BUILD_OPENGL3_DEMOS 0 CACHE STRING "" FORCE)
	set(BUILD_EXTRAS 0 CACHE STRING "" FORCE)
	set(INSTALL_EXTRA_LIBS 0 CACHE STRING "" FORCE)
	set(INSTALL_LIBS 1 CACHE STRING "" FORCE)
	set(INSTALL_CMAKE_FILES 0 CACHE STRING "" FORCE)
	set(POSITION_INDEPENDENT_CODE O CACHE BOOL "" FORCE)
	FetchContent_Populate(bullet)
	add_subdirectory(${bullet_SOURCE_DIR} ${bullet_BINARY_DIR})
	target_include_directories(pke PUBLIC BEFORE ${bullet_SOURCE_DIR}/src)
	target_link_libraries(pke PUBLIC BulletDynamics BulletCollision LinearMath Bullet3Common)
	message(STATUS "Bullet vars: " ${bullet_SOURCE_DIR} " - " ${bullet_BINARY_DIR})
endif()
find_package(Bullet REQUIRED
	PATHS ${bullet_BINARY_DIR}
)

target_include_directories(pke PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/src")

target_link_libraries(pke PUBLIC imguidocked)

add_dependencies(pke shaders)

# install libs
set(LIB_DESTINATION "lib")
set(INCLUDE_INSTALL_DIR "include/pke")
set(PKGCONFIG_INSTALL_PREFIX "lib/pkgconfig")
IF(NOT MSVC)
	configure_file("src/cmake/pke.pc.cmake" ${CMAKE_CURRENT_BINARY_DIR}/pke.pc @ONLY)
	install(
		FILES
		${CMAKE_CURRENT_BINARY_DIR}/pke.pc
		DESTINATION
		${PKGCONFIG_INSTALL_PREFIX}
	)
ENDIF()
install(
	DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/src/
	DESTINATION ${INCLUDE_INSTALL_DIR}
	FILES_MATCHING
	PATTERN "*.h"
	PATTERN "*.hpp"
	PATTERN "cmake" EXCLUDE
)
install(
	TARGETS pke
	RUNTIME DESTINATION bin
	LIBRARY DESTINATION lib
	ARCHIVE DESTINATION lib
)

# install cmake files
set (PKE_CONFIG_CMAKE_PATH lib/cmake/pke )
# list (APPEND PKE_DEFINITIONS "SOME_VAL")
list(APPEND PKE_DEFINITIONS "")
list(APPEND PKE_LIBRARIES pke)
set(PKE_USE_FILE src/cmake/Usepke.cmake)
configure_file(src/cmake/pkeConfig.cmake.in
	${CMAKE_CURRENT_BINARY_DIR}/pkeConfig.cmake
	@ONLY ESCAPE_QUOTES
)
install(FILES
	src/cmake/Usepke.cmake
	${CMAKE_CURRENT_BINARY_DIR}/pkeConfig.cmake
	DESTINATION ${PKE_CONFIG_CMAKE_PATH}
)

add_subdirectory(editor)
add_subdirectory(runtime)
add_subdirectory(test)
add_subdirectory(example)