update ModsLevel use

stepmania/Themes/default/Scripts/StageMods.lua

@@ -22,12 +22,12 @@ function ScreenSelectMusic:setupmusicstagemods()
 
 	for dummy, pn in ipairs(GAMESTATE:GetHumanPlayers()) do
 		GAMESTATE:SetCurrentSteps( pn, steps )
-		GAMESTATE:GetPlayerState(pn):SetPlayerOptions( ModsLevel_Stage, po )
+		GAMESTATE:GetPlayerState(pn):SetPlayerOptions( "ModsLevel_Stage", po )
 		GAMESTATE:SetPreferredDifficulty( pn, difficulty )
 		MESSAGEMAN:Broadcast( "PlayerOptionsChangedP" .. (pn+1) )
 	end
 	
-	GAMESTATE:SetSongOptions( ModsLevel_Stage, so )
+	GAMESTATE:SetSongOptions( "ModsLevel_Stage", so )
 	MESSAGEMAN:Broadcast( "SongOptionsChanged" )
 end
 
@@ -41,11 +41,11 @@ function ScreenSelectMusic:setupcoursestagemods()
 		local so = "failimmediate"
 
 		for dummy, pn in ipairs(GAMESTATE:GetHumanPlayers()) do
-			GAMESTATE:GetPlayerState(pn):SetPlayerOptions( ModsLevel_Stage, po )
+			GAMESTATE:GetPlayerState(pn):SetPlayerOptions( "ModsLevel_Stage", po )
 			MESSAGEMAN:Broadcast( "PlayerOptionsChangedP" .. (pn+1) )
 		end
 
-		GAMESTATE:SetSongOptions( ModsLevel_Stage, so )
+		GAMESTATE:SetSongOptions( "ModsLevel_Stage", so )
 		MESSAGEMAN:Broadcast( "SongOptionsChanged" )
 	end
 end

stepmania/src/GameState.cpp

@@ -2041,10 +2041,12 @@ public:
 	}
 	static int SetSongOptions( T* p, lua_State *L )
 	{
+		ModsLevel m = Enum::Check<ModsLevel>( L, 1 );
+
 		SongOptions so;
 		
 		so.FromString( SArg(2) );
-		p->m_SongOptions.Assign( ModsLevel(IArg(1)), so );
+		p->m_SongOptions.Assign( m, so );
 		return 0;
 	}
 	static int GetCurrentStyle( T* p, lua_State *L )

stepmania/src/PlayerState.cpp

@@ -173,10 +173,11 @@ class LunaPlayerState: public Luna<PlayerState>
 {
 	static int SetPlayerOptions( T* p, lua_State *L )
 	{
+		ModsLevel m = Enum::Check<ModsLevel>( L, 1 );
+
 		PlayerOptions po;
-		
 		po.FromString( SArg(2) );
-		p->m_PlayerOptions.Assign( ModsLevel(IArg(1)), po );
+		p->m_PlayerOptions.Assign( m, po );
 		return 0;
 	}
 public: