skip exporting round data when nothing was played (no taps, no holds)

stepmania/src/HighScore.cpp

@@ -160,6 +160,21 @@ void HighScore::Unset()
 	m_Impl = new HighScoreImpl;
 }
 
+bool HighScore::IsEmpty() const
+{
+	FOREACH_ENUM( TapNoteScore, tns )
+	{
+		if( m_Impl->iTapNoteScores[tns] > 0 )
+			return false;
+	}
+	FOREACH_ENUM( HoldNoteScore, hns )
+	{
+		if( m_Impl->iHoldNoteScores[hns] > 0 )
+			return false;
+	}
+	return true;
+}
+
 RString	HighScore::GetName() const { return m_Impl->sName; }
 Grade HighScore::GetGrade() const { return m_Impl->grade; }
 int HighScore::GetScore() const { return m_Impl->iScore; }

stepmania/src/HighScore.h

@@ -20,6 +20,7 @@ struct HighScore
 	RString	GetName() const;
 	Grade GetGrade() const;
 	int GetScore() const;
+	bool IsEmpty() const;
 	float GetPercentDP() const;
 	float GetSurviveSeconds() const;
 	float GetSurvivalSeconds() const;

stepmania/src/StatsManager.cpp

@@ -264,12 +264,20 @@ void StatsManager::CommitStatsToProfiles( const StageStats *pSS )
 		if(!GAMESTATE->m_bMultiplayer)
 		{
 			FOREACH_HumanPlayer( p )
+			{
+				if( pSS->m_player[p].m_HighScore.IsEmpty() )
+					continue;
 				recent->AppendChild( MakeRecentScoreNode( *pSS, GAMESTATE->m_pCurTrail[p], pSS->m_player[p], MultiPlayer_Invalid ) );
+			}
 		}
 		else
 		{
 			FOREACH_EnabledMultiPlayer( mp )
+			{
+				if( pSS->m_multiPlayer[mp].m_HighScore.IsEmpty() )
+					continue;
 				recent->AppendChild( MakeRecentScoreNode( *pSS, GAMESTATE->m_pCurTrail[GAMESTATE->m_MasterPlayerNumber], pSS->m_multiPlayer[mp], mp ) );
+			}
 		}
 
 		RString sDate = DateTime::GetNowDate().GetString();