Function FactoryComp_Load

engine/gamesys/src/gamesys/scripts/script_factory.cpp:160–197

Load resources of a factory prototype. * * Resources are referenced by the factory component until the existing (parent) collection is destroyed or factory.unload is called. * * Calling this function when the factory is not marked as dynamic loading does nothing. * * @name factory.load * @param [url] [type:string|hash|url] the factory component to load * @pa

     * ```
     */
    static int FactoryComp_Load(lua_State* L)
    {
        int top = lua_gettop(L);

        if (top < 2 || !lua_isfunction(L, 2))
        {
            return luaL_error(L, "Argument #2 is expected to be completion function.");
        }

        dmMessage::URL receiver;
        HFactoryWorld world;
        HFactoryComponent component;
        dmScript::GetComponentFromLua(L, 1, FACTORY_EXT, (dmGameObject::HComponentWorld*)&world, (dmGameObject::HComponent*)&component, &receiver);

        if (dmGameSystem::CompFactoryIsLoading(world, component)) {
            dmLogError("Trying to load factory prototype resource when already loading.");
            return luaL_error(L, "Error loading factory resources");
        }

        lua_pushvalue(L, 2);
        int callback_ref = dmScript::Ref(L, LUA_REGISTRYINDEX);
        dmScript::GetInstance(L);
        int self_ref = dmScript::Ref(L, LUA_REGISTRYINDEX);
        dmScript::PushURL(L, receiver);
        int url_ref = dmScript::Ref(L, LUA_REGISTRYINDEX);

        bool success = dmGameSystem::CompFactoryLoad(world, component, callback_ref, self_ref, url_ref);
        if (!success)
        {
            dmScript::Unref(L, LUA_REGISTRYINDEX, callback_ref);
            dmScript::Unref(L, LUA_REGISTRYINDEX, self_ref);
            dmScript::Unref(L, LUA_REGISTRYINDEX, url_ref);
            return luaL_error(L, "Error loading factory resources");
        }

        assert(top == lua_gettop(L));
        return 0;
    }


    /*# make a factory create a new game object