twnlua: bindgen.py capable of converting share/twn_api.h spec to lua bindings

apps/twnlua/CMakeLists.txt

@@ -8,10 +8,19 @@ endif()
 
 add_subdirectory($ENV{TWNROOT} $ENV{TWNBUILDDIR})
 
+add_custom_command(
+   OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/luabind.c
+   COMMAND ${PYTHON3} ${CMAKE_CURRENT_SOURCE_DIR}/bindgen.py $ENV{TWNROOT}/share/twn_api.json > ${CMAKE_CURRENT_SOURCE_DIR}/luabind.c
+   DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/bindgen.py
+)
+
+
 set(SOURCE_FILES
         game.c
         state.h
 
+        ${CMAKE_CURRENT_SOURCE_DIR}/luabind.c
+
         lua/src/lapi.c
         lua/src/lapi.h
         lua/src/lauxlib.c