path emscripten

CMakeLists.txt

@@ -121,11 +121,27 @@ set(APP_SOURCES
 )
 
 # Configuración de SDL3
-find_package(SDL3 REQUIRED CONFIG REQUIRED COMPONENTS SDL3)
-message(STATUS "SDL3 encontrado: ${SDL3_INCLUDE_DIRS}")
+if(EMSCRIPTEN)
+    # En Emscripten, SDL3 se compila desde source con FetchContent
+    include(FetchContent)
+    FetchContent_Declare(
+        SDL3
+        GIT_REPOSITORY https://github.com/libsdl-org/SDL.git
+        GIT_TAG release-3.2.12
+        GIT_SHALLOW TRUE
+    )
+    set(SDL_SHARED OFF CACHE BOOL "" FORCE)
+    set(SDL_STATIC ON CACHE BOOL "" FORCE)
+    set(SDL_TEST_LIBRARY OFF CACHE BOOL "" FORCE)
+    FetchContent_MakeAvailable(SDL3)
+    message(STATUS "SDL3 compilado desde source para Emscripten")
+else()
+    find_package(SDL3 REQUIRED CONFIG REQUIRED COMPONENTS SDL3)
+    message(STATUS "SDL3 encontrado: ${SDL3_INCLUDE_DIRS}")
+endif()
 
-# --- SHADER COMPILATION (Linux/Windows only - macOS uses Metal) ---
-if(NOT APPLE)
+# --- SHADER COMPILATION (Linux/Windows only - macOS uses Metal, Emscripten no soporta SDL3 GPU) ---
+if(NOT APPLE AND NOT EMSCRIPTEN)
     find_program(GLSLC_EXE NAMES glslc)
 
     set(SHADER_VERT_SRC     "${CMAKE_SOURCE_DIR}/data/shaders/postfx.vert")
@@ -184,13 +200,24 @@ if(NOT APPLE)
         message(STATUS "glslc no encontrado - usando headers SPIR-V precompilados")
     endif()
 else()
-    message(STATUS "macOS: shaders SPIR-V omitidos (usa Metal)")
+    if(EMSCRIPTEN)
+        message(STATUS "Emscripten: shaders SPIR-V omitidos (SDL3 GPU no soportado en WebGL2)")
+    else()
+        message(STATUS "macOS: shaders SPIR-V omitidos (usa Metal)")
+    endif()
 endif()
 
 # --- 2. AÑADIR EJECUTABLE ---
-add_executable(${PROJECT_NAME} ${APP_SOURCES})
+if(EMSCRIPTEN)
+    # En Emscripten no compilamos sdl3gpu_shader (SDL3 GPU no está soportado en WebGL2)
+    set(APP_SOURCES_WASM ${APP_SOURCES})
+    list(REMOVE_ITEM APP_SOURCES_WASM source/core/rendering/sdl3gpu/sdl3gpu_shader.cpp)
+    add_executable(${PROJECT_NAME} ${APP_SOURCES_WASM})
+else()
+    add_executable(${PROJECT_NAME} ${APP_SOURCES})
+endif()
 
-if(NOT APPLE AND GLSLC_EXE)
+if(NOT APPLE AND NOT EMSCRIPTEN AND GLSLC_EXE)
     add_dependencies(${PROJECT_NAME} shaders)
 endif()
 
@@ -233,12 +260,33 @@ elseif(APPLE)
             -rpath @executable_path/../Frameworks/
         )
     endif()
+elseif(EMSCRIPTEN)
+    target_compile_definitions(${PROJECT_NAME} PRIVATE EMSCRIPTEN_BUILD NO_SHADERS)
+    # -fexceptions: habilita excepciones C++ (fkyaml, std::runtime_error...) — sin esto cualquier throw llama a abort()
+    target_compile_options(${PROJECT_NAME} PRIVATE -fexceptions)
+    target_link_options(${PROJECT_NAME} PRIVATE
+        "SHELL:--preload-file ${CMAKE_SOURCE_DIR}/data@/data"
+        "SHELL:--preload-file ${CMAKE_SOURCE_DIR}/config@/config"
+        -fexceptions
+        -sALLOW_MEMORY_GROWTH=1
+        -sMAX_WEBGL_VERSION=2
+        -sINITIAL_MEMORY=67108864
+        -sASSERTIONS=1
+        # ASYNCIFY solo para permitir emscripten_sleep(0) durante la precarga de recursos
+        # (el bucle principal del juego ya usa SDL3 Callback API, no depende de ASYNCIFY).
+        -sASYNCIFY=1
+    )
+    set_target_properties(${PROJECT_NAME} PROPERTIES SUFFIX ".html")
 elseif(UNIX AND NOT APPLE)
     target_compile_definitions(${PROJECT_NAME} PRIVATE LINUX_BUILD)
 endif()
 
 # Especificar la ubicación del ejecutable
-set_target_properties(${PROJECT_NAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR})
+if(EMSCRIPTEN)
+    set_target_properties(${PROJECT_NAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
+else()
+    set_target_properties(${PROJECT_NAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR})
+endif()
 
 # --- 5. STATIC ANALYSIS TARGETS ---