private (Dictionary <int, string> Map, IList <BmsCommand> Commands) GetStringMap(IEnumerable <BmsCommand> commands,
string mapName)
{
var map = new Dictionary <int, string>();
var processedCommands = new List <BmsCommand>();
foreach (var command in commands
.Where(c => c.Value != null &&
!c.Name.Equals(mapName, StringComparison.InvariantCultureIgnoreCase) &&
c.Name.StartsWith(mapName, StringComparison.InvariantCultureIgnoreCase)))
{
var index = Alphabet.DecodeAlphanumeric(command.Name.AsSpan(3));
map[index] = command.Value;
processedCommands.Add(command);
}
return(map, processedCommands);
}
private (Dictionary <int, BigRational> Map, IList <BmsCommand> Commands) GetNumericMap(
IEnumerable <BmsCommand> commands, string mapName)
{
var map = new Dictionary <int, BigRational>();
var processedCommands = new List <BmsCommand>();
foreach (var command in commands
.Where(c => c.Value != null &&
!c.Name.Equals(mapName, StringComparison.InvariantCultureIgnoreCase) &&
c.Name.StartsWith(mapName, StringComparison.InvariantCultureIgnoreCase)))
{
var index = Alphabet.DecodeAlphanumeric(command.Name.AsSpan(mapName.Length));
var bpm = BigRationalParser.ParseString(command.Value);
if (bpm != null)
{
map[index] = bpm.Value;
}
processedCommands.Add(command);
}
return(map, processedCommands);
}
private IEnumerable <IEvent> GetMeasureEvents(BmsCommand command, IDictionary <int, BigRational> bpmMap)
{
var measure = Alphabet.DecodeNumeric(command.Name.AsSpan(0, 3));
var lane = Alphabet.DecodeHex(command.Name.AsSpan(3, 2));
switch (lane)
{
case 0x02:
{
return(new[]
{
new Event
{
[NumericData.MeasureLength] = BigRationalParser.ParseString(command.Value),
[NumericData.MetricOffset] = measure
}
});
}
}
var events = new List <Event>();
var total = command.Value.Length / 2;
for (var index = 0; index < total; index++)
{
var valueMemory = command.Value.AsMemory(index << 1, 2);
var value = valueMemory.Span;
if (value[0] == '0' && value[1] == '0')
{
continue;
}
void AddEvent(Event ev)
{
ev[NumericData.MetricOffset] = new BigRational(new BigInteger(measure), new BigInteger(index),
new BigInteger(total));
ev[NumericData.SourceData] = Alphabet.DecodeAlphanumeric(valueMemory.Span);
ev[NumericData.SourceCommand] = lane;
events.Add(ev);
}
switch (lane)
{
case 0x01:
{
AddEvent(new Event
{
[NumericData.PlaySound] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x03:
{
AddEvent(new Event
{
[NumericData.Bpm] = Alphabet.DecodeHex(value)
});
break;
}
case 0x04:
{
AddEvent(new Event
{
[NumericData.BgaBase] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x05:
{
AddEvent(new Event
{
[NumericData.BgaObject] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x06:
{
AddEvent(new Event
{
[NumericData.BgaPoor] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x07:
{
AddEvent(new Event
{
[NumericData.BgaLayer] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x08:
{
var number = Alphabet.DecodeAlphanumeric(value);
if (bpmMap.ContainsKey(number))
{
AddEvent(new Event
{
[NumericData.Bpm] = bpmMap[number]
});
}
break;
}
case 0x11:
case 0x12:
case 0x13:
case 0x14:
case 0x15:
case 0x21:
case 0x22:
case 0x23:
case 0x24:
case 0x25:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[FlagData.Note] = true,
[NumericData.Column] = lane & 0x0F
});
break;
}
case 0x18:
case 0x19:
case 0x28:
case 0x29:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[FlagData.Note] = true,
[NumericData.Column] = (lane & 0x0F) - 2
});
break;
}
case 0x16:
case 0x26:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[FlagData.Scratch] = true,
[FlagData.Note] = true
});
break;
}
case 0x17:
case 0x27:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[FlagData.FreeZone] = true,
[FlagData.Note] = true
});
break;
}
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[NumericData.Column] = lane & 0x0F,
[NumericData.LoadSound] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x38:
case 0x39:
case 0x48:
case 0x49:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[NumericData.Column] = (lane & 0x0F) - 2,
[NumericData.LoadSound] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
case 0x36:
case 0x37:
case 0x46:
case 0x47:
{
AddEvent(new Event
{
[NumericData.Player] = (lane & 0x20) >> 5,
[FlagData.Scratch] = true,
[NumericData.LoadSound] = Alphabet.DecodeAlphanumeric(value)
});
break;
}
}
}
return(events);
}
