public Osb(string aCode)
{
code = aCode;
string[] lines = aCode.Split(new string[] { "\n" }, StringSplitOptions.None);
// substitute variables in the code before looking at the event part
List <KeyValuePair <string, string> > substitutions = new List <KeyValuePair <string, string> >();
ParserStatic.ApplySettings(lines, "Variables", aSectionLines =>
{
foreach (string line in aSectionLines)
{
if (line.StartsWith("$"))
{
substitutions.Add(new KeyValuePair <string, string>(
line.Split('=')[0].Trim(),
line.Split('=')[1].Trim()));
}
}
});
string substitutedCode = aCode;
foreach (KeyValuePair <string, string> substitution in substitutions)
{
substitutedCode = substitutedCode.Replace(substitution.Key, substitution.Value);
}
string codeResult = substitutedCode.ToString();
string[] linesResult = codeResult.Split(new string[] { "\n" }, StringSplitOptions.None);
backgrounds = GetEvents(linesResult, new List <string>()
{
"Background", "0"
}, anArgs => new Background(anArgs));
videos = GetEvents(linesResult, new List <string>()
{
"Video", "1"
}, anArgs => new Video(anArgs));
breaks = GetEvents(linesResult, new List <string>()
{
"Break", "2"
}, anArgs => new Break(anArgs));
sprites = GetEvents(linesResult, new List <string>()
{
"Sprite", "4"
}, anArgs => new Sprite(anArgs));
storyHitSounds = GetEvents(linesResult, new List <string>()
{
"Sample", "5"
}, anArgs => new StoryHitSound(anArgs));
animations = GetEvents(linesResult, new List <string>()
{
"Animation", "6"
}, anArgs => new Animation(anArgs));
}
private List <TimingLine> GetTimingLines(string[] aLines)
{
// find the [TimingPoints] section and parse each timing line
return(ParserStatic.ParseSection(aLines, "TimingPoints", aLine =>
{
string[] args = aLine.Split(',');
return TimingLine.IsUninherited(args) ? new UninheritedLine(args) : (TimingLine) new InheritedLine(args);
}).ToList());
}
private List <HitObject> GetHitobjects(string[] aLines)
{
// find the [Hitobjects] section and parse each hitobject until empty line or end of file
return(ParserStatic.ParseSection(aLines, "HitObjects", aLine =>
{
string[] args = aLine.Split(',');
return
HitObject.HasType(args, HitObject.Type.Circle) ? new Circle(args, this) :
HitObject.HasType(args, HitObject.Type.Slider) ? new Slider(args, this) :
HitObject.HasType(args, HitObject.Type.ManiaHoldNote) ? new HoldNote(args, this) :
(HitObject) new Spinner(args, this);
}).ToList());
}
public Beatmap(string aCode, float?aStarRating = null, string aSongPath = null, string aMapPath = null)
{
code = aCode;
songPath = aSongPath;
mapPath = aMapPath;
string[] lines = aCode.Split(new string[] { "\n" }, StringSplitOptions.None);
generalSettings = ParserStatic.GetSettings(lines, "General", aSectionLines => new GeneralSettings(aSectionLines));
metadataSettings = ParserStatic.GetSettings(lines, "Metadata", aSectionLines => new MetadataSettings(aSectionLines));
difficultySettings = ParserStatic.GetSettings(lines, "Difficulty", aSectionLines => new DifficultySettings(aSectionLines));
colourSettings = ParserStatic.GetSettings(lines, "Colours", aSectionLines => new ColourSettings(aSectionLines));
// event type 3 seems to be "background colour transformation" https://i.imgur.com/Tqlz3s5.png
backgrounds = GetEvents(lines, new List <string>()
{
"Background", "0"
}, anArgs => new Background(anArgs));
videos = GetEvents(lines, new List <string>()
{
"Video", "1"
}, anArgs => new Video(anArgs));
breaks = GetEvents(lines, new List <string>()
{
"Break", "2"
}, anArgs => new Break(anArgs));
sprites = GetEvents(lines, new List <string>()
{
"Sprite", "4"
}, anArgs => new Sprite(anArgs));
storyHitSounds = GetEvents(lines, new List <string>()
{
"Sample", "5"
}, anArgs => new StoryHitSound(anArgs));
animations = GetEvents(lines, new List <string>()
{
"Animation", "6"
}, anArgs => new Animation(anArgs));
timingLines = GetTimingLines(lines);
hitObjects = GetHitobjects(lines);
if (generalSettings.mode == Mode.Standard)
{
// Stacking is standard-only.
ApplyStacking();
starRating = aStarRating ?? (float)StandardDifficultyCalculator.Calculate(this).Item3;
}
}
/*
* Parser Methods
*/
private List <T> GetEvents <T>(string[] aLines, List <string> aTypes, Func <string[], T> aFunc)
{
// find all lines starting with any of aTypes in the event section
List <T> types = new List <T>();
ParserStatic.ApplySettings(aLines, "Events", aSectionLines =>
{
foreach (string line in aSectionLines)
{
if (aTypes.Any(aType => line.StartsWith(aType + ",")))
{
types.Add(aFunc(line.Split(',')));
}
}
});
return(types);
}
public Beatmap(string code, double?starRating = null, string songPath = null, string mapPath = null)
{
this.code = code;
this.songPath = songPath;
this.mapPath = mapPath;
string[] lines = code.Split(new string[] { "\n" }, StringSplitOptions.None);
generalSettings = ParserStatic.GetSettings(lines, "General", sectionLines => new GeneralSettings(sectionLines));
metadataSettings = ParserStatic.GetSettings(lines, "Metadata", sectionLines => new MetadataSettings(sectionLines));
difficultySettings = ParserStatic.GetSettings(lines, "Difficulty", sectionLines => new DifficultySettings(sectionLines));
colourSettings = ParserStatic.GetSettings(lines, "Colours", sectionLines => new ColourSettings(sectionLines));
// event type 3 seems to be "background colour transformation" https://i.imgur.com/Tqlz3s5.png
backgrounds = GetEvents(lines, new List <string>()
{
"Background", "0"
}, args => new Background(args));
videos = GetEvents(lines, new List <string>()
{
"Video", "1"
}, args => new Video(args));
breaks = GetEvents(lines, new List <string>()
{
"Break", "2"
}, args => new Break(args));
sprites = GetEvents(lines, new List <string>()
{
"Sprite", "4"
}, args => new Sprite(args));
samples = GetEvents(lines, new List <string>()
{
"Sample", "5"
}, args => new Sample(args));
animations = GetEvents(lines, new List <string>()
{
"Animation", "6"
}, args => new Animation(args));
timingLines = GetTimingLines(lines);
hitObjects = GetHitobjects(lines);
if (generalSettings.mode != Mode.Standard)
{
return;
}
// Stacking is standard-only.
ApplyStacking();
if (starRating != null)
{
this.starRating = starRating.Value;
}
else
{
DifficultyAttributes attributes = new OsuDifficultyCalculator(this).Calculate();
difficultyAttributes = attributes;
this.starRating = attributes.StarRating;
}
}
/// <summary> Returns on which layer the storyboard sample will play (e.g. Fail or Pass). </summary> private Layer GetLayer(string[] args) => ParserStatic.GetEnumMatch <Layer>(args[2]) ?? Layer.Unknown;
/// <summary> Returns the local origin of the sprite, determining around which point it is transformed /// (e.g. TopLeft, Center, or Bottom). </summary> private Origin GetOrigin(string[] args) => ParserStatic.GetEnumMatch <Origin>(args[2]) ?? Origin.Unknown;
