public static SongScore AnalyzeMap(BSMap map)
{
int len = (int)BSMath.Ceiling(map.Data.Notes.Max(x => (float?)x.Time) ?? 0);
if (len == 0)
{
return(new SongScore(average: 0, max: 0, graph: Array.Empty <AggregatedHit>()));
}
var scoredRed = ProcessColor(map, NoteColor.Red);
var scoredBlue = ProcessColor(map, NoteColor.Blue);
var timedRed = ConvertToFixedTimeBlocks(scoredRed, len);
var timedBlue = ConvertToFixedTimeBlocks(scoredBlue, len);
var combined = new AggregatedHit[len];
for (int i = 0; i < len; i++)
{
int cnt = timedRed[i].HitDifficulty > 0 && timedBlue[i].HitDifficulty > 0 ? 2 : 1;
combined[i] = (timedRed[i] + timedBlue[i]) / cnt;
}
var totalDifficulty = combined.Select(h => h.TotalDifficulty()).ToList();
return(new SongScore
(
average: totalDifficulty.Average(),
max: totalDifficulty.Max(),
graph: combined
));
}
public static AggregatedHit[] ConvertToFixedTimeBlocks(IEnumerable <ScoredClusterHit> notes, int len)
{
var timed = new AggregatedHit[len];
foreach (ScoredClusterHit note in notes)
{
int timeIndex = (int)note.Cluster.BeatTime;
if (timeIndex < 0 || timeIndex >= len)
{
continue;
}
timed[timeIndex] = new AggregatedHit(Math.Max(timed[timeIndex].HitDifficulty, note.HitDifficulty),
Math.Max(timed[timeIndex].ContinuousDifficulty, note.ContinuousDifficulty), note.Cluster.RealTime);
}
return(timed);
}