Function broadcast

src/world/script_world.cpp:110–140

	}

	void broadcast(ScriptWorld &sw
		, const char *function_name
		, const ArgType::Enum *arg_types
		, const Arg *args
		, u32 num_args
		)
	{
		if (sw._disable_callbacks)
			return;

		LuaStack stack(sw._lua_environment->L);

		for (u32 i = 0; i < array::size(sw._script); ++i) {
			lua_rawgeti(stack.L, LUA_REGISTRYINDEX, sw._script[i].module_ref);
			lua_getfield(stack.L, -1, function_name);

			if (lua_isnil(stack.L, -1)) {
				stack.pop(2);
				continue;
			}

			stack.push_args(arg_types, args, num_args);

			int status = sw._lua_environment->call(num_args, 0);
			if (status != LUA_OK) {
				report(stack.L, status);
				device()->pause();
			}
			stack.pop(1);
		}
	}

	void multicast(ScriptWorld &sw
		, const char *function_name