updated groove radar values to store actually meaningful values (buggy). Algorithms used:

Voltage - ratio of perfects to total tap notes
Stream - ratio of player max combo to possible max combo
Air - ratio of jumps to total possible jumps
Freeze - ratio of freeze arrows to total freeze arrows
Chaos - dance points percentage
Note: Multidimensional array stageStats.fRadarActual[p][r] is now a %, not width.

stepmania/src/NoteDataWithScoring.h

@@ -60,6 +60,8 @@ public:
 	float GetActualAirRadarValue( float fSongSeconds ) const;
 	float GetActualFreezeRadarValue( float fSongSeconds ) const;
 	float GetActualChaosRadarValue( float fSongSeconds ) const;
+
+	int GetMaxCombo() const; // used for groove radar calculations
 };
 
 #endif