{

internal class Beatmap

{

internal int Column;

internal bool Special;

internal string Title = string.Empty;

internal string Artist = string.Empty;

internal string Background = string.Empty;

internal string Diff = string.Empty;

internal string Source = string.Empty;

internal List<Event> EventList;

internal List<Note> NoteList;

internal List<Timing> TimingList;

internal Dictionary<string, double> BpmDict;

internal string Dir;

internal string OrgDir;

internal string OrgFilename;

internal string Filename;

internal int HPRate = 7;

internal double FirstNoteTime= double.MaxValue;

internal double LastNoteTime =double.MinValue;

private bool WithSample;

internal Beatmap()

{

EventList = new List<Event>();

NoteList = new List<Note>();

TimingList = new List<Timing>();

BpmDict = new Dictionary<string, double>();

}

internal bool Save(string name, string output, bool withSample =true)

{

WithSample = withSample;

int index = name.LastIndexOf('\\');

OrgFilename = name.Substring(index + 1, name.LastIndexOf('.') - index - 1);

Dir = output;

OrgDir = name.Substring(0, index + 1); // with \\

Regex reg = new Regex(@"[\\/\:\*\?\<\>\|\\""]");

Artist = reg.Replace(Artist, "");

Title = reg.Replace(Title, "");

Diff = reg.Replace(Diff, "");

Filename = string.Format("{0} - {1} ({2}) [{3}].osu", Artist, Title, "BMXC_V1", Diff);

if(File.Exists(Dir+Filename))

Filename = "("+OrgFilename+")"+Filename;

//no notes in special column, convert to normal map.

if (!Special)

{

Column--;

}

doSort();

calculateTime();

if(withSample)

calculateEvent();

calculateNote();

writeToFile();

return true;

}

private void doSort()

{

TimingList.Sort();

EventList.Sort((x, y) =>

{

if (x.Section < y.Section)

return -1;

else if (x.Section > y.Section)

return 1;

else

{

if (x.Offset < y.Offset)

return -1;

else if (x.Offset > y.Offset)

return 1;

else

return 0;

}

});

//Notice: sort note by start time

NoteList.Sort((x, y) =>

{

if (x.SectionStart < y.SectionStart)

return -1;

else if (x.SectionStart > y.SectionStart)

return 1;

else

{

if (x.OffsetStart < y.OffsetStart)

return -1;

else if (x.OffsetStart > y.OffsetStart)

return 1;

else

{

if (x.Column < y.Column)

return -1;

else if (x.Column > y.Column)

return 1;

else

return 0;

}

}

});

}

private void calculateTime()

{

Timing current = TimingList[0].Clone();

for (int i = 0; i < TimingList.Count; i++)

{

Timing t = TimingList[i];

t.Time = ((t.Section + t.Offset) - (current.Section + current.Offset)) * (60000 * 4 / current.bpm) * current.beat + current.Time;

current.Time = t.Time;

current.Section = t.Section;

current.Offset = t.Offset;

if (t.bpm != -1)

current.bpm = t.bpm;

else

t.bpm = current.bpm;

if (t.beat != current.beat)

current.beat = t.beat;

if (t.CustomSampleSet == -1)

t.CustomSampleSet = current.CustomSampleSet;

else

current.CustomSampleSet = t.CustomSampleSet;

}

}

private double getEventTime(Event e)

{

Timing t = new Timing();

t.Section = e.Section;

t.Offset = e.Offset;

int index = TimingList.BinarySearch(t);

if (index < 0)

index = ~index;

if (index > TimingList.Count)

index = TimingList.Count;

Timing target = TimingList[index==0?0:index - 1];

return ((t.Section + t.Offset) - (target.Section + target.Offset)) * (60000 * 4 / target.bpm) * target.beat + target.Time;

}

private void calculateEvent()

{

for (int i = 0; i < EventList.Count; i++)

{

Event e = EventList[i];

e.Time = getEventTime(e);

}

}

private double getNoteTime(Note n, bool head = true)

{

Timing t = new Timing();

t.Section = head ? n.SectionStart : n.SectionEnd;

t.Offset = head ? n.OffsetStart : n.OffsetEnd;

int index = TimingList.BinarySearch(t);

if (index < 0)

index = ~index;

if (index > TimingList.Count)

index = TimingList.Count;

Timing target = TimingList[index==0?0:index - 1];

return ((t.Section + t.Offset) - (target.Section + target.Offset)) * (60000 * 4 / target.bpm) * target.beat + target.Time;

}

private void calculateNote()

{

for (int i = 0; i < NoteList.Count; i++)

{

Note n = NoteList[i];

n.TimeStart = getNoteTime(n);

if (n.Type == NoteType.ManiaLong)

n.TimeEnd = getNoteTime(n, false);

else

n.TimeEnd = n.TimeStart;

//no notes in special column

if (!Special)

n.Column--;

if (n.TimeStart < FirstNoteTime)

FirstNoteTime = n.TimeStart;

if (n.TimeEnd > LastNoteTime)

LastNoteTime = n.TimeEnd;

}

}

//bms support wav,ogg

internal static string GetSampleFilename(string orgDir, string name, out string ext)

{

string oldName = name.Substring(0, name.LastIndexOf('.'));

for (int i = 0; i < 3; i++)

{

if(i==0)

ext = ".wav";

else if(i==1)

ext = ".ogg";

else

ext = ".mp3";

if (File.Exists(orgDir + oldName + ext))

return oldName + ext;

}

ext = "";

return "";

}

private void moveFile()

{

//bg

if (Background != "" && File.Exists(OrgDir + Background))

{

Image img = Image.FromFile(OrgDir + Background);

string name = Background.Substring(0, Background.LastIndexOf('.'));

if (File.Exists(Dir + name + ".jpg"))

File.Delete(Dir + name + ".jpg");

img.Save(Dir + name + ".jpg", ImageFormat.Jpeg);

img.Dispose();

Background = name + ".jpg";//rename

}

else

{

Background = "";

}

//event sample

if (!WithSample)

return;

foreach (Event e in EventList)

{

string file = e.Filename;

if (file == "")

continue;

if (File.Exists(Dir + file))

continue;

File.Copy(OrgDir + file, Dir + file);

}

}

private void writeToFile()

{

moveFile();

using (FileStream fs = new FileStream(Dir + Filename, FileMode.OpenOrCreate))

{

using (StreamWriter writer = new StreamWriter(fs))

{

writer.WriteLine("osu file format v11");

writer.WriteLine();

writer.WriteLine("[General]");

writer.WriteLine("AudioFilename: virtual");

writer.WriteLine("AudioLeadIn: 0");

writer.WriteLine("PreviewTime: 0");

writer.WriteLine("Countdown: 0");

writer.WriteLine("SampleSet: 0");

writer.WriteLine("StackLeniency: 0.4");

writer.WriteLine("Mode: 3");

writer.WriteLine("SpecialStyle:" + (Special ? "1" : "0"));//new value, for 7+1 and 5+1 only.

writer.WriteLine();

writer.WriteLine("[Metadata]");

writer.WriteLine("Title:" + Title);

writer.WriteLine("TitleUnicode:" + Title);

writer.WriteLine("Artist:" + Artist);

writer.WriteLine("ArtistUnicode:" + Artist);

writer.WriteLine("Creator: BMXC_V1");

writer.WriteLine("Version:" + Diff);

writer.WriteLine("Source:" + Source);

writer.WriteLine("Tags:");

writer.WriteLine("BeatmapID:0");

writer.WriteLine("BeatmapSetID:-1");

writer.WriteLine();

writer.WriteLine("[Difficulty]");

writer.WriteLine("HPDrainRate: "+HPRate.ToString());

writer.WriteLine("CircleSize: " + Column.ToString());

writer.WriteLine("OverallDifficulty: 7");

writer.WriteLine("ApproachRate: 7");

writer.WriteLine("SliderMultiplier: 0.4");

writer.WriteLine("SliderTickRate:1");

writer.WriteLine();

writer.WriteLine("[Events]");

if (Background != "")

{

writer.WriteLine("//Background and Video events");

writer.WriteLine("{0},{1},\"{2}\"", 0, 0, Background);

}

if (EventList.Count > 0 && WithSample)

{

writer.WriteLine("//Storyboard Sound Samples");

foreach (Event e in EventList)

writer.WriteLine("{0},{1},{2},\"{3}\",{4}", 5, (int)e.Time, 0, e.Filename, 70);

writer.WriteLine();

}

writer.WriteLine("[TimingPoints]");

double lastTime = -1;

foreach (Timing t in TimingList)

{

writer.WriteLine("{0:0},{1},{2},{3},{4},{5},{6},{7}", t.Time,

t.changed ? 60000 / t.bpm : -100, (int)(t.beat * 4), (int)t.SampleSet,

(int)t.CustomSampleSet, 70, (t.changed ? "1" : "0"), 0);

}

writer.WriteLine();

SoundUnit empty = new SoundUnit();

writer.WriteLine("[HitObjects]");

foreach (Note n in NoteList)

{

string extra = "";

SoundUnit su = n.Sound;

if (su == null || !WithSample)

su = empty;

if (n.Type == NoteType.ManiaLong)

{

extra = "," + (int)n.TimeEnd;

extra += string.Format(":{0}:{1}:{2}", (int)su.Set, 0, (int)su.Custom);

}

else

extra += string.Format(",{0}:{1}:{2}", (int)su.Set, 0, (int)su.Custom);

writer.WriteLine((int)((n.Column + 0.5) * 512 / Column) + ",192," + (int)n.TimeStart + "," + (int)n.Type + "," + (int)su.Sound + extra);

}

}

}

}

}