Change RadarValues internal implementation to not use a union and use the subscript operator instead of the float* operator for subscripting.

src/PlayerStageStats.cpp

@@ -316,7 +316,9 @@ int PlayerStageStats::GetLessonScoreNeeded() const
 	float fScore = 0;
 
 	FOREACH_CONST( Steps*, m_vpPossibleSteps, steps )
-		fScore += (*steps)->GetRadarValues( PLAYER_1 ).m_Values.v.fNumTapsAndHolds;
+	{
+		fScore += (*steps)->GetRadarValues(PLAYER_1)[RadarCategory_TapsAndHolds];
+	}
 
 	return lrintf( fScore * LESSON_PASS_THRESHOLD );
 }