first commit

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+project(sdl3_flecs_template VERSION 1.0.0 LANGUAGES CXX)
+
+# C++ Standard
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# Build type defaults to Debug
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Debug)
+endif()
+
+# Compiler warnings
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+    add_compile_options(-Wall -Wextra -Wpedantic)
+    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+        add_compile_options(-g -O0)
+    else()
+        add_compile_options(-O2)
+    endif()
+elseif(MSVC)
+    add_compile_options(/W4)
+endif()
+
+# =============================================================================
+# Dependencies
+# =============================================================================
+
+# SDL3 - Using FetchContent for automatic download
+include(FetchContent)
+
+# SDL3
+FetchContent_Declare(
+    SDL3
+    GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
+    GIT_TAG main
+    GIT_SHALLOW TRUE
+    GIT_PROGRESS TRUE
+)
+
+set(SDL_SHARED OFF CACHE BOOL "" FORCE)
+set(SDL_STATIC ON CACHE BOOL "" FORCE)
+set(SDL_TEST OFF CACHE BOOL "" FORCE)
+
+# Platform-specific SDL backends
+if(EMSCRIPTEN)
+    set(SDL_X11 OFF CACHE BOOL "" FORCE)
+    set(SDL_WAYLAND OFF CACHE BOOL "" FORCE)
+else()
+    # Disable X11, use Wayland only on Linux
+    set(SDL_X11 OFF CACHE BOOL "" FORCE)
+    set(SDL_WAYLAND ON CACHE BOOL "" FORCE)
+endif()
+
+FetchContent_MakeAvailable(SDL3)
+
+# FLECS
+FetchContent_Declare(
+    flecs
+    GIT_REPOSITORY https://github.com/SanderMertens/flecs.git
+    GIT_TAG master
+    GIT_SHALLOW TRUE
+    GIT_PROGRESS TRUE
+)
+
+FetchContent_MakeAvailable(flecs)
+
+# =============================================================================
+# Main Executable
+# =============================================================================
+
+add_executable(${PROJECT_NAME}
+    src/main.cpp
+    src/game.cpp
+    src/systems.cpp
+    src/pipeline.cpp
+)
+
+target_include_directories(${PROJECT_NAME} PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+target_link_libraries(${PROJECT_NAME} PRIVATE
+    SDL3::SDL3-static
+    flecs::flecs_static
+)
+
+# Platform-specific settings
+if(EMSCRIPTEN)
+    set_target_properties(${PROJECT_NAME} PROPERTIES SUFFIX ".html")
+    target_link_options(${PROJECT_NAME} PRIVATE
+        -sUSE_SDL=0
+        -sALLOW_MEMORY_GROWTH=1
+        -sTOTAL_MEMORY=67108864
+        -sMAX_WEBGL_VERSION=2
+        --shell-file ${CMAKE_CURRENT_SOURCE_DIR}/web/shell.html
+    )
+elseif(WIN32)
+    target_link_libraries(${PROJECT_NAME} PRIVATE winmm imm32 version setupapi)
+elseif(UNIX AND NOT APPLE)
+    find_package(PkgConfig REQUIRED)
+    # Linux dependencies are handled by SDL3
+endif()
+
+# =============================================================================
+# Install
+# =============================================================================
+
+install(TARGETS ${PROJECT_NAME}
+    RUNTIME DESTINATION bin
+)
+
+# =============================================================================
+# CPack (optional packaging)
+# =============================================================================
+
+set(CPACK_PROJECT_NAME ${PROJECT_NAME})
+set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
+include(CPack)