diff --git a/LuaSTG/LuaSTG/LuaBinding/LW_Audio.cpp b/LuaSTG/LuaSTG/LuaBinding/LW_Audio.cpp
index 4d6be44c..a2ed2264 100644
--- a/LuaSTG/LuaSTG/LuaBinding/LW_Audio.cpp
+++ b/LuaSTG/LuaSTG/LuaBinding/LW_Audio.cpp
@@ -1,433 +1,451 @@
-#include "LuaBinding/LuaWrapper.hpp"
-#include "lua/plus.hpp"
-#include "AppFrame.h"
-
-// 微软我日你仙人
-#ifdef PlaySound
-#undef PlaySound
-#endif
-
-void luastg::binding::Audio::Register(lua_State* L)noexcept
-{
-	struct Wrapper
-	{
-		static int ListAudioDevice(lua_State* vm)
-		{
-			lua::stack_t const ctx(vm);
-			auto const audio_engine = LAPP.getAudioEngine();
-			if (!audio_engine)
-			{
-				return luaL_error(vm, "engine not initialized");
-			}
-			if (auto const refresh = ctx.get_value<bool>(1); refresh) {
-				std::ignore = audio_engine->refreshAudioEndpoint();
-			}
-			uint32_t const count = audio_engine->getAudioEndpointCount();
-			auto const names = ctx.create_array(count);
-			for (uint32_t i = 0; i < count; i += 1)
-			{
-				auto const name = audio_engine->getAudioEndpointName(i);
-				ctx.set_array_value_zero_base<std::string_view>(names, i, name);
-			}
-			return 1;
-		}
-		static int ChangeAudioDevice(lua_State* L)
-		{
-			auto const audio_engine = LAPP.getAudioEngine();
-			if (!audio_engine)
-			{
-				return luaL_error(L, "engine not initialized");
-			}
-			lua::stack_t S(L);
-			auto const name = S.get_value<std::string_view>(1);
-			auto const result = audio_engine->setAudioEndpoint(name);
-			S.push_value<bool>(result);
-			return 1;
-		}
-		static int GetCurrentAudioDeviceName(lua_State* L)
-		{
-			auto const audio_engine = LAPP.getAudioEngine();
-			if (!audio_engine)
-			{
-				return luaL_error(L, "engine not initialized");
-			}
-			lua::stack_t S(L);
-			auto const result = audio_engine->getCurrentAudioEndpointName();
-			S.push_value<std::string_view>(result);
-			return 1;
-		}
-
-		static int PlaySound(lua_State* vm)noexcept
-		{
-			lua::stack_t const ctx(vm);
-			auto const name = ctx.get_value<std::string_view>(1);
-			auto const volume = ctx.get_value<float>(2, 1.0f);
-			auto const pan = ctx.get_value<float>(3, 0.0f);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(name.data());
-			if (!p)
-				return luaL_error(vm, "sound '%s' not found.", name.data());
-			p->Play(std::clamp(volume, 0.0f, 1.0f), std::clamp(pan, -1.0f, 1.0f));
-			return 0;
-		}
-		static int StopSound(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
-			if (!p)
-				return luaL_error(L, "sound '%s' not found.", s);
-			p->Stop();
-			return 0;
-		}
-		static int PauseSound(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
-			if (!p)
-				return luaL_error(L, "sound '%s' not found.", s);
-			p->Pause();
-			return 0;
-		}
-		static int ResumeSound(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
-			if (!p)
-				return luaL_error(L, "sound '%s' not found.", s);
-			p->Resume();
-			return 0;
-		}
-		static int GetSoundState(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
-			if (!p)
-				return luaL_error(L, "sound '%s' not found.", s);
-			if (p->IsPlaying())
-				lua_pushstring(L, "playing");
-			else if (p->IsStopped())
-				lua_pushstring(L, "stopped");
-			else
-				lua_pushstring(L, "paused");
-			return 1;
-		}
-		static int SetSEVolume(lua_State* vm)noexcept
-		{
-			lua::stack_t const ctx(vm);
-			auto const volume = ctx.get_value<float>(1);
-			LAPP.SetSEVolume(std::clamp(volume, 0.0f, 1.0f));
-			return 0;
-		}
-		static int GetSEVolume(lua_State* L)
-		{
-			lua_pushnumber(L, LAPP.GetSEVolume());
-			return 1;
-		}
-		static int SetSESpeed(lua_State* L) {
-			const char* s = luaL_checkstring(L, 1);
-			float speed = (float)luaL_checknumber(L, 2);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
-			if (!p)
-				return luaL_error(L, "sound '%s' not found.", s);
-			if (!p->SetSpeed(speed))
-				return luaL_error(L, "Can't set sound('%s') playing speed.", s);
-			return 0;
-		}
-		static int GetSESpeed(lua_State* L) {
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
-			if (!p)
-				return luaL_error(L, "sound '%s' not found.", s);
-			lua_pushnumber(L, p->GetSpeed());
-			return 1;
-		}
-		static int UpdateSound(lua_State*)noexcept
-		{
-			// 否决的方法
-			return 0;
-		}
-
-		static int PlayMusic(lua_State* vm)noexcept
-		{
-			lua::stack_t const ctx(vm);
-			auto const name = ctx.get_value<std::string_view>(1);
-			auto const volume = ctx.get_value<float>(2, 1.0f);
-			auto const position = ctx.get_value<double>(3, 0.0f);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(name.data());
-			if (!p)
-				return luaL_error(vm, "music '%s' not found.", name.data());
-			p->Play(std::clamp(volume, 0.0f, 1.0f), position);
-			return 0;
-		}
-		static int StopMusic(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			p->Stop();
-			return 0;
-		}
-		static int PauseMusic(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			p->Pause();
-			return 0;
-		}
-		static int ResumeMusic(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			p->Resume();
-			return 0;
-		}
-		static int GetMusicState(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			if (p->IsPlaying())
-				lua_pushstring(L, "playing");
-			else if (p->IsPaused())
-				lua_pushstring(L, "paused");
-			//else if (p->IsStopped())
-				//lua_pushstring(L, "stopped");
-			else
-				lua_pushstring(L, "stopped");
-			//lua_pushstring(L, "paused");
-			return 1;
-		}
-		static int GetMusicFFT(lua_State* L)noexcept
-		{
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			p->GetAudioPlayer()->updateFFT();
-			size_t sz = p->GetAudioPlayer()->getFFTSize();
-			float const* fdata = p->GetAudioPlayer()->getFFT();
-			if (!lua_istable(L, 2))
-			{
-				lua_createtable(L, (int)sz, 0);
-			}
-			for (int i = 0; i < (int)sz; i += 1)
-			{
-				lua_pushnumber(L, (lua_Number)fdata[i]);
-				lua_rawseti(L, 2, i + 1);
-			}
-			return 1;
-		}
-		static int SetMusicLoopRange(lua_State* L) {
-			lua::stack_t S(L);
-
-			auto const music_name = S.get_value<std::string_view>(1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(music_name.data());
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", music_name.data());
-
-			// 没有第二个参数，禁用循环
-
-			if (S.index_of_top().value <= 1 || S.is_nil(2))
-			{
-				MusicRoopRange range{};
-				range.type = MusicRoopRangeType::Disable;
-				p->SetLoopRange(range);
-				return 0;
-			}
-
-			lua::stack_index_t a_range(2);
-			MusicRoopRange range{};
-			if (!S.is_table(a_range))
-				return luaL_error(L, "invalid parameter #2, required table");
-
-			// 按采样
-
-			if (S.has_map_value(a_range, "start_in_samples") && S.has_map_value(a_range, "end_in_samples"))
-			{
-				range.type = MusicRoopRangeType::StartPointAndEndPoint;
-				range.unit = MusicRoopRangeUnit::Sample;
-				range.start_in_samples = S.get_map_value<uint32_t>(a_range, "start_in_samples");
-				range.end_in_samples = S.get_map_value<uint32_t>(a_range, "end_in_samples");
-			}
-			else if(S.has_map_value(a_range, "start_in_samples") && S.has_map_value(a_range, "length_in_samples"))
-			{
-				range.type = MusicRoopRangeType::StartPointAndLength;
-				range.unit = MusicRoopRangeUnit::Sample;
-				range.start_in_samples = S.get_map_value<uint32_t>(a_range, "start_in_samples");
-				range.length_in_samples = S.get_map_value<uint32_t>(a_range, "length_in_samples");
-			}
-			else if (S.has_map_value(a_range, "length_in_samples") && S.has_map_value(a_range, "end_in_samples"))
-			{
-				range.type = MusicRoopRangeType::LengthAndEndPoint;
-				range.unit = MusicRoopRangeUnit::Sample;
-				range.length_in_samples = S.get_map_value<uint32_t>(a_range, "length_in_samples");
-				range.end_in_samples = S.get_map_value<uint32_t>(a_range, "end_in_samples");
-			}
-			else if (S.has_map_value(a_range, "start_in_samples"))
-			{
-				range.type = MusicRoopRangeType::StartPointToEnd;
-				range.unit = MusicRoopRangeUnit::Sample;
-				range.start_in_samples = S.get_map_value<uint32_t>(a_range, "start_in_samples");
-			}
-			else if (S.has_map_value(a_range, "end_in_samples"))
-			{
-				range.type = MusicRoopRangeType::StartToEndPoint;
-				range.unit = MusicRoopRangeUnit::Sample;
-				range.end_in_samples = S.get_map_value<uint32_t>(a_range, "end_in_samples");
-			}
-
-			// 按秒
-
-			else if (S.has_map_value(a_range, "start_in_seconds") && S.has_map_value(a_range, "end_in_seconds"))
-			{
-				range.type = MusicRoopRangeType::StartPointAndEndPoint;
-				range.unit = MusicRoopRangeUnit::Second;
-				range.start_in_seconds = S.get_map_value<double>(a_range, "start_in_seconds");
-				range.end_in_seconds = S.get_map_value<double>(a_range, "end_in_seconds");
-			}
-			else if (S.has_map_value(a_range, "start_in_seconds") && S.has_map_value(a_range, "length_in_seconds"))
-			{
-				range.type = MusicRoopRangeType::StartPointAndLength;
-				range.unit = MusicRoopRangeUnit::Second;
-				range.start_in_seconds = S.get_map_value<double>(a_range, "start_in_seconds");
-				range.length_in_seconds = S.get_map_value<double>(a_range, "length_in_seconds");
-			}
-			else if (S.has_map_value(a_range, "length_in_seconds") && S.has_map_value(a_range, "end_in_seconds"))
-			{
-				range.type = MusicRoopRangeType::LengthAndEndPoint;
-				range.unit = MusicRoopRangeUnit::Second;
-				range.length_in_seconds = S.get_map_value<double>(a_range, "length_in_seconds");
-				range.end_in_seconds = S.get_map_value<double>(a_range, "end_in_seconds");
-			}
-			else if (S.has_map_value(a_range, "start_in_seconds"))
-			{
-				range.type = MusicRoopRangeType::StartPointToEnd;
-				range.unit = MusicRoopRangeUnit::Second;
-				range.start_in_seconds = S.get_map_value<double>(a_range, "start_in_seconds");
-			}
-			else if (S.has_map_value(a_range, "end_in_seconds"))
-			{
-				range.type = MusicRoopRangeType::StartToEndPoint;
-				range.unit = MusicRoopRangeUnit::Second;
-				range.end_in_seconds = S.get_map_value<double>(a_range, "end_in_seconds");
-			}
-
-			// 全曲循环
-
-			else
-			{
-				range.type = MusicRoopRangeType::All;
-			}
-
-			p->SetLoopRange(range);
-			return 0;
-		}
-		static int SetBGMVolume(lua_State* vm)noexcept
-		{
-			lua::stack_t const ctx(vm);
-			if (lua_gettop(vm) <= 1)
-			{
-				auto const volume = ctx.get_value<float>(1);
-				LAPP.SetBGMVolume(std::clamp(volume, 0.0f, 1.0f));
-			}
-			else
-			{
-				auto const name = ctx.get_value<std::string_view>(1);
-				auto const volume = ctx.get_value<float>(2);
-				core::SmartReference<IResourceMusic> p = LRES.FindMusic(name.data());
-				if (!p)
-					return luaL_error(vm, "music '%s' not found.", name.data());
-				p->SetVolume(std::clamp(volume, 0.0f, 1.0f));
-			}
-			return 0;
-		}
-		static int GetBGMVolume(lua_State* L)noexcept
-		{
-			if (lua_gettop(L) == 0)
-			{
-				lua_pushnumber(L, LAPP.GetBGMVolume());
-			}
-			else if (lua_gettop(L) == 1)
-			{
-				const char* s = luaL_checkstring(L, 1);
-				core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-				if (!p)
-					return luaL_error(L, "music '%s' not found.", s);
-				lua_pushnumber(L, p->GetVolume());
-			}
-			return 1;
-		}
-		static int SetBGMSpeed(lua_State* L) {
-			const char* s = luaL_checkstring(L, 1);
-			float speed = (float)luaL_checknumber(L, 2);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			if (!p->SetSpeed(speed))
-				return luaL_error(L, "Can't set music('%s') playing speed.", s);
-			return 0;
-		}
-		static int GetBGMSpeed(lua_State* L) {
-			const char* s = luaL_checkstring(L, 1);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			lua_pushnumber(L, p->GetSpeed());
-			return 1;
-		}
-		static int SetBGMLoop(lua_State* L) {
-			const char* s = luaL_checkstring(L, 1);
-			bool loop = lua_toboolean(L, 2);
-			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
-			if (!p)
-				return luaL_error(L, "music '%s' not found.", s);
-			p->SetLoop(loop);
-			return 0;
-		}
-	};
-
-	luaL_Reg const lib[] = {
-		{ "ListAudioDevice", &Wrapper::ListAudioDevice },
-		{ "ChangeAudioDevice", &Wrapper::ChangeAudioDevice },
-		{ "GetCurrentAudioDeviceName", &Wrapper::GetCurrentAudioDeviceName },
-
-		{ "PlaySound", &Wrapper::PlaySound },
-		{ "StopSound", &Wrapper::StopSound },
-		{ "PauseSound", &Wrapper::PauseSound },
-		{ "ResumeSound", &Wrapper::ResumeSound },
-		{ "GetSoundState", &Wrapper::GetSoundState },
-		{ "SetSEVolume", &Wrapper::SetSEVolume },
-		{ "GetSEVolume", &Wrapper::GetSEVolume },
-		{ "SetSESpeed", &Wrapper::SetSESpeed },
-		{ "GetSESpeed", &Wrapper::GetSESpeed },
-		{ "UpdateSound", &Wrapper::UpdateSound },
-
-		{ "PlayMusic", &Wrapper::PlayMusic },
-		{ "StopMusic", &Wrapper::StopMusic },
-		{ "PauseMusic", &Wrapper::PauseMusic },
-		{ "ResumeMusic", &Wrapper::ResumeMusic },
-		{ "GetMusicState", &Wrapper::GetMusicState },
-		{ "GetMusicFFT", &Wrapper::GetMusicFFT },
-		{ "SetMusicLoopRange", &Wrapper::SetMusicLoopRange },
-		{ "SetBGMVolume", &Wrapper::SetBGMVolume },
-		{ "GetBGMVolume", &Wrapper::GetBGMVolume },
-		{ "SetBGMSpeed", &Wrapper::SetBGMSpeed },
-		{ "GetBGMSpeed", &Wrapper::GetBGMSpeed },
-		{ "SetBGMLoop", &Wrapper::SetBGMLoop },
-		{ NULL, NULL },
-	};
-
-	luaL_Reg const lib_empty[] = {
-		{ NULL, NULL },
-	};
-
-	luaL_register(L, LUASTG_LUA_LIBNAME, lib);          // ??? lstg
-	luaL_register(L, LUASTG_LUA_LIBNAME ".Audio", lib); // ??? lstg lstg.Audio
-	lua_setfield(L, -1, "Audio");                       // ??? lstg
-	lua_pop(L, 1);                                      // ???
-}
+#include "LuaBinding/LuaWrapper.hpp"
+#include "lua/plus.hpp"
+#include "AppFrame.h"
+
+// 微软我日你仙人
+#ifdef PlaySound
+#undef PlaySound
+#endif
+
+void luastg::binding::Audio::Register(lua_State* L)noexcept
+{
+	struct Wrapper
+	{
+		static int ListAudioDevice(lua_State* vm)
+		{
+			lua::stack_t const ctx(vm);
+			auto const audio_engine = LAPP.getAudioEngine();
+			if (!audio_engine)
+			{
+				return luaL_error(vm, "engine not initialized");
+			}
+			if (auto const refresh = ctx.get_value<bool>(1); refresh) {
+				std::ignore = audio_engine->refreshAudioEndpoint();
+			}
+			uint32_t const count = audio_engine->getAudioEndpointCount();
+			auto const names = ctx.create_array(count);
+			for (uint32_t i = 0; i < count; i += 1)
+			{
+				auto const name = audio_engine->getAudioEndpointName(i);
+				ctx.set_array_value_zero_base<std::string_view>(names, i, name);
+			}
+			return 1;
+		}
+		static int ChangeAudioDevice(lua_State* L)
+		{
+			auto const audio_engine = LAPP.getAudioEngine();
+			if (!audio_engine)
+			{
+				return luaL_error(L, "engine not initialized");
+			}
+			lua::stack_t S(L);
+			auto const name = S.get_value<std::string_view>(1);
+			auto const result = audio_engine->setAudioEndpoint(name);
+			S.push_value<bool>(result);
+			return 1;
+		}
+		static int GetCurrentAudioDeviceName(lua_State* L)
+		{
+			auto const audio_engine = LAPP.getAudioEngine();
+			if (!audio_engine)
+			{
+				return luaL_error(L, "engine not initialized");
+			}
+			lua::stack_t S(L);
+			auto const result = audio_engine->getCurrentAudioEndpointName();
+			S.push_value<std::string_view>(result);
+			return 1;
+		}
+
+		static int PlaySound(lua_State* vm)noexcept
+		{
+			lua::stack_t const ctx(vm);
+			auto const name = ctx.get_value<std::string_view>(1);
+			auto const volume = ctx.get_value<float>(2, 1.0f);
+			auto const pan = ctx.get_value<float>(3, 0.0f);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(name.data());
+			if (!p)
+				return luaL_error(vm, "sound '%s' not found.", name.data());
+			p->Play(std::clamp(volume, 0.0f, 1.0f), std::clamp(pan, -1.0f, 1.0f));
+			return 0;
+		}
+		static int StopSound(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
+			if (!p)
+				return luaL_error(L, "sound '%s' not found.", s);
+			p->Stop();
+			return 0;
+		}
+		static int PauseSound(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
+			if (!p)
+				return luaL_error(L, "sound '%s' not found.", s);
+			p->Pause();
+			return 0;
+		}
+		static int ResumeSound(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
+			if (!p)
+				return luaL_error(L, "sound '%s' not found.", s);
+			p->Resume();
+			return 0;
+		}
+		static int GetSoundState(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
+			if (!p)
+				return luaL_error(L, "sound '%s' not found.", s);
+			if (p->IsPlaying())
+				lua_pushstring(L, "playing");
+			else if (p->IsStopped())
+				lua_pushstring(L, "stopped");
+			else
+				lua_pushstring(L, "paused");
+			return 1;
+		}
+		static int SetSEVolume(lua_State* vm)noexcept
+		{
+			lua::stack_t const ctx(vm);
+			auto const volume = ctx.get_value<float>(1);
+			LAPP.SetSEVolume(std::clamp(volume, 0.0f, 1.0f));
+			return 0;
+		}
+		static int GetSEVolume(lua_State* L)
+		{
+			lua_pushnumber(L, LAPP.GetSEVolume());
+			return 1;
+		}
+		static int SetSESpeed(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			float speed = (float)luaL_checknumber(L, 2);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
+			if (!p)
+				return luaL_error(L, "sound '%s' not found.", s);
+			if (!p->SetSpeed(speed))
+				return luaL_error(L, "Can't set sound('%s') playing speed.", s);
+			return 0;
+		}
+		static int GetSESpeed(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceSoundEffect> p = LRES.FindSound(s);
+			if (!p)
+				return luaL_error(L, "sound '%s' not found.", s);
+			lua_pushnumber(L, p->GetSpeed());
+			return 1;
+		}
+		static int UpdateSound(lua_State*)noexcept
+		{
+			// 否决的方法
+			return 0;
+		}
+
+		static int PlayMusic(lua_State* vm)noexcept
+		{
+			lua::stack_t const ctx(vm);
+			auto const name = ctx.get_value<std::string_view>(1);
+			auto const volume = ctx.get_value<float>(2, 1.0f);
+			auto const position = ctx.get_value<double>(3, 0.0f);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(name.data());
+			if (!p)
+				return luaL_error(vm, "music '%s' not found.", name.data());
+			p->Play(std::clamp(volume, 0.0f, 1.0f), position);
+			return 0;
+		}
+		static int StopMusic(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			p->Stop();
+			return 0;
+		}
+		static int PauseMusic(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			p->Pause();
+			return 0;
+		}
+		static int ResumeMusic(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			p->Resume();
+			return 0;
+		}
+		static int GetMusicState(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			if (p->IsPlaying())
+				lua_pushstring(L, "playing");
+			else if (p->IsPaused())
+				lua_pushstring(L, "paused");
+			//else if (p->IsStopped())
+				//lua_pushstring(L, "stopped");
+			else
+				lua_pushstring(L, "stopped");
+			//lua_pushstring(L, "paused");
+			return 1;
+		}
+		static int GetMusicFFT(lua_State* L)noexcept
+		{
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			p->GetAudioPlayer()->updateFFT();
+			size_t sz = p->GetAudioPlayer()->getFFTSize();
+			float const* fdata = p->GetAudioPlayer()->getFFT();
+			if (!lua_istable(L, 2))
+			{
+				lua_createtable(L, (int)sz, 0);
+			}
+			for (int i = 0; i < (int)sz; i += 1)
+			{
+				lua_pushnumber(L, (lua_Number)fdata[i]);
+				lua_rawseti(L, 2, i + 1);
+			}
+			return 1;
+		}
+		static int SetMusicLoopRange(lua_State* L) {
+			lua::stack_t S(L);
+
+			auto const music_name = S.get_value<std::string_view>(1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(music_name.data());
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", music_name.data());
+
+			// 没有第二个参数，禁用循环
+
+			if (S.index_of_top().value <= 1 || S.is_nil(2))
+			{
+				MusicRoopRange range{};
+				range.type = MusicRoopRangeType::Disable;
+				p->SetLoopRange(range);
+				return 0;
+			}
+
+			lua::stack_index_t a_range(2);
+			MusicRoopRange range{};
+			if (!S.is_table(a_range))
+				return luaL_error(L, "invalid parameter #2, required table");
+
+			// 按采样
+
+			if (S.has_map_value(a_range, "start_in_samples") && S.has_map_value(a_range, "end_in_samples"))
+			{
+				range.type = MusicRoopRangeType::StartPointAndEndPoint;
+				range.unit = MusicRoopRangeUnit::Sample;
+				range.start_in_samples = S.get_map_value<uint32_t>(a_range, "start_in_samples");
+				range.end_in_samples = S.get_map_value<uint32_t>(a_range, "end_in_samples");
+			}
+			else if(S.has_map_value(a_range, "start_in_samples") && S.has_map_value(a_range, "length_in_samples"))
+			{
+				range.type = MusicRoopRangeType::StartPointAndLength;
+				range.unit = MusicRoopRangeUnit::Sample;
+				range.start_in_samples = S.get_map_value<uint32_t>(a_range, "start_in_samples");
+				range.length_in_samples = S.get_map_value<uint32_t>(a_range, "length_in_samples");
+			}
+			else if (S.has_map_value(a_range, "length_in_samples") && S.has_map_value(a_range, "end_in_samples"))
+			{
+				range.type = MusicRoopRangeType::LengthAndEndPoint;
+				range.unit = MusicRoopRangeUnit::Sample;
+				range.length_in_samples = S.get_map_value<uint32_t>(a_range, "length_in_samples");
+				range.end_in_samples = S.get_map_value<uint32_t>(a_range, "end_in_samples");
+			}
+			else if (S.has_map_value(a_range, "start_in_samples"))
+			{
+				range.type = MusicRoopRangeType::StartPointToEnd;
+				range.unit = MusicRoopRangeUnit::Sample;
+				range.start_in_samples = S.get_map_value<uint32_t>(a_range, "start_in_samples");
+			}
+			else if (S.has_map_value(a_range, "end_in_samples"))
+			{
+				range.type = MusicRoopRangeType::StartToEndPoint;
+				range.unit = MusicRoopRangeUnit::Sample;
+				range.end_in_samples = S.get_map_value<uint32_t>(a_range, "end_in_samples");
+			}
+
+			// 按秒
+
+			else if (S.has_map_value(a_range, "start_in_seconds") && S.has_map_value(a_range, "end_in_seconds"))
+			{
+				range.type = MusicRoopRangeType::StartPointAndEndPoint;
+				range.unit = MusicRoopRangeUnit::Second;
+				range.start_in_seconds = S.get_map_value<double>(a_range, "start_in_seconds");
+				range.end_in_seconds = S.get_map_value<double>(a_range, "end_in_seconds");
+			}
+			else if (S.has_map_value(a_range, "start_in_seconds") && S.has_map_value(a_range, "length_in_seconds"))
+			{
+				range.type = MusicRoopRangeType::StartPointAndLength;
+				range.unit = MusicRoopRangeUnit::Second;
+				range.start_in_seconds = S.get_map_value<double>(a_range, "start_in_seconds");
+				range.length_in_seconds = S.get_map_value<double>(a_range, "length_in_seconds");
+			}
+			else if (S.has_map_value(a_range, "length_in_seconds") && S.has_map_value(a_range, "end_in_seconds"))
+			{
+				range.type = MusicRoopRangeType::LengthAndEndPoint;
+				range.unit = MusicRoopRangeUnit::Second;
+				range.length_in_seconds = S.get_map_value<double>(a_range, "length_in_seconds");
+				range.end_in_seconds = S.get_map_value<double>(a_range, "end_in_seconds");
+			}
+			else if (S.has_map_value(a_range, "start_in_seconds"))
+			{
+				range.type = MusicRoopRangeType::StartPointToEnd;
+				range.unit = MusicRoopRangeUnit::Second;
+				range.start_in_seconds = S.get_map_value<double>(a_range, "start_in_seconds");
+			}
+			else if (S.has_map_value(a_range, "end_in_seconds"))
+			{
+				range.type = MusicRoopRangeType::StartToEndPoint;
+				range.unit = MusicRoopRangeUnit::Second;
+				range.end_in_seconds = S.get_map_value<double>(a_range, "end_in_seconds");
+			}
+
+			// 全曲循环
+
+			else
+			{
+				range.type = MusicRoopRangeType::All;
+			}
+
+			p->SetLoopRange(range);
+			return 0;
+		}
+		static int SetBGMVolume(lua_State* vm)noexcept
+		{
+			lua::stack_t const ctx(vm);
+			if (lua_gettop(vm) <= 1)
+			{
+				auto const volume = ctx.get_value<float>(1);
+				LAPP.SetBGMVolume(std::clamp(volume, 0.0f, 1.0f));
+			}
+			else
+			{
+				auto const name = ctx.get_value<std::string_view>(1);
+				auto const volume = ctx.get_value<float>(2);
+				core::SmartReference<IResourceMusic> p = LRES.FindMusic(name.data());
+				if (!p)
+					return luaL_error(vm, "music '%s' not found.", name.data());
+				p->SetVolume(std::clamp(volume, 0.0f, 1.0f));
+			}
+			return 0;
+		}
+		static int GetBGMVolume(lua_State* L)noexcept
+		{
+			if (lua_gettop(L) == 0)
+			{
+				lua_pushnumber(L, LAPP.GetBGMVolume());
+			}
+			else if (lua_gettop(L) == 1)
+			{
+				const char* s = luaL_checkstring(L, 1);
+				core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+				if (!p)
+					return luaL_error(L, "music '%s' not found.", s);
+				lua_pushnumber(L, p->GetVolume());
+			}
+			return 1;
+		}
+		static int SetBGMSpeed(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			float speed = (float)luaL_checknumber(L, 2);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			if (!p->SetSpeed(speed))
+				return luaL_error(L, "Can't set music('%s') playing speed.", s);
+			return 0;
+		}
+		static int GetBGMSpeed(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			lua_pushnumber(L, p->GetSpeed());
+			return 1;
+		}
+		static int SetBGMLoop(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			bool loop = lua_toboolean(L, 2);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			p->SetLoop(loop);
+			return 0;
+		}
+		static int GetBGMTotalTime(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			lua_pushnumber(L, p->GetAudioPlayer()->getTotalTime());
+			return 1;
+		}
+		static int GetBGMTime(lua_State* L) {
+			const char* s = luaL_checkstring(L, 1);
+			core::SmartReference<IResourceMusic> p = LRES.FindMusic(s);
+			if (!p)
+				return luaL_error(L, "music '%s' not found.", s);
+			lua_pushnumber(L, p->GetAudioPlayer()->getTime());
+			return 1;
+		}
+	};
+
+	luaL_Reg const lib[] = {
+		{ "ListAudioDevice", &Wrapper::ListAudioDevice },
+		{ "ChangeAudioDevice", &Wrapper::ChangeAudioDevice },
+		{ "GetCurrentAudioDeviceName", &Wrapper::GetCurrentAudioDeviceName },
+
+		{ "PlaySound", &Wrapper::PlaySound },
+		{ "StopSound", &Wrapper::StopSound },
+		{ "PauseSound", &Wrapper::PauseSound },
+		{ "ResumeSound", &Wrapper::ResumeSound },
+		{ "GetSoundState", &Wrapper::GetSoundState },
+		{ "SetSEVolume", &Wrapper::SetSEVolume },
+		{ "GetSEVolume", &Wrapper::GetSEVolume },
+		{ "SetSESpeed", &Wrapper::SetSESpeed },
+		{ "GetSESpeed", &Wrapper::GetSESpeed },
+		{ "UpdateSound", &Wrapper::UpdateSound },
+
+		{ "PlayMusic", &Wrapper::PlayMusic },
+		{ "StopMusic", &Wrapper::StopMusic },
+		{ "PauseMusic", &Wrapper::PauseMusic },
+		{ "ResumeMusic", &Wrapper::ResumeMusic },
+		{ "GetMusicState", &Wrapper::GetMusicState },
+		{ "GetMusicFFT", &Wrapper::GetMusicFFT },
+		{ "SetMusicLoopRange", &Wrapper::SetMusicLoopRange },
+		{ "SetBGMVolume", &Wrapper::SetBGMVolume },
+		{ "GetBGMVolume", &Wrapper::GetBGMVolume },
+		{ "SetBGMSpeed", &Wrapper::SetBGMSpeed },
+		{ "GetBGMSpeed", &Wrapper::GetBGMSpeed },
+		{ "SetBGMLoop", &Wrapper::SetBGMLoop },
+		{ "GetBGMTotalTime", &Wrapper::GetBGMTotalTime },
+		{ "GetBGMTime", &Wrapper::GetBGMTime },
+		{ NULL, NULL },
+	};
+
+	luaL_Reg const lib_empty[] = {
+		{ NULL, NULL },
+	};
+
+	luaL_register(L, LUASTG_LUA_LIBNAME, lib);          // ??? lstg
+	luaL_register(L, LUASTG_LUA_LIBNAME ".Audio", lib); // ??? lstg lstg.Audio
+	lua_setfield(L, -1, "Audio");                       // ??? lstg
+	lua_pop(L, 1);                                      // ???
+}
\ No newline at end of file