/**
* \brief Calls sol.main.on_update() if it exists.
*
* This function is called at each cycle by the main loop.
*/
void LuaContext::main_on_update() {
push_main(l);
on_update();
menus_on_update(-1);
lua_pop(l, 1);
}
/**
* \brief Calls the on_update() method of a Lua menu.
* \param menu_ref A reference to the menu object.
*/
void LuaContext::menu_on_update(const ScopedLuaRef& menu_ref) {
push_ref(l, menu_ref);
on_update();
menus_on_update(-1); // Update children menus if any.
lua_pop(l, 1);
}
/**
* @brief Calls the on_update() method of a Lua game.
* @param game A game.
*/
void LuaContext::game_on_update(Game& game) {
push_game(l, game.get_savegame());
on_update();
menus_on_update(-1);
lua_pop(l, 1);
}
/**
* \brief Calls the on_update() method of a Lua game if it is defined.
*
* Also calls the method on its menus.
*
* \param game A game.
*/
void LuaContext::game_on_update(Game& game) {
if (!game.get_savegame().is_known_to_lua()) {
return;
}
push_game(l, game.get_savegame());
// This particular method is tried so often that we want to save optimize
// the std::string construction.
static const std::string method_name = "on_update";
if (userdata_has_field(game.get_savegame(), method_name)) {
on_update();
}
menus_on_update(-1);
lua_pop(l, 1);
}