private void playMidi()
{
int notesPlayed = 0;
byte tempChannel = 0;
byte tempVel = 0;
MidiEvent tempEvent;
while (allowPlayMidi || midiSequence.GetTracks()[0].Events.Count > notesPlayed)
{
tempEvent = midiSequence.GetTracks()[0].Events.GetEvent(notesPlayed);
Thread.Sleep((int)tempEvent.DeltaTime);
MidiPlayer.Play(tempEvent);
notesPlayed++;
}
}
/// <summary>
/// Creates a notechart from the specified midi path and the actual charttype
/// (i.e. ExpertSingle from notes.mid). Due to the overhead necessary to
/// parse a midi file. I am going to cram all midi->chart operations into
/// one function call.
/// This function uses the Toub midi parser which is much faster than Sanford,
/// but will throw an exception on certian midi files.
/// </summary>
/// <param name="chartSelection">
/// The information on which particular notechart to use.
/// </param>
/// <param name="chartInfo">The metadata on the chart.</param>
/// <param name="BPMChanges">The list of BPM changes for this chart.</param>
/// <returns>
/// A filled out Notechart containing the needed information from the *.mid file.
/// </returns>
public static Notes ParseMidiInformationToub(ChartSelection chartSelection,
Info chartInfo,
List <BPMChange> BPMChanges)
{
Notes notechartToReturn = new Notes();
notechartToReturn.instrument = chartSelection.instrument;
notechartToReturn.difficulty = chartSelection.difficulty;
// The following two switch's are used to get the proper midi terminology for
// the selected track and difficulty.
string instrumentPart = null;
string greenKey = null;
string redKey = null;
string yellowKey = null;
string blueKey = null;
string orangeKey = null;
switch (chartSelection.instrument)
{
case "Single":
instrumentPart = "PART GUITAR";
break;
case "DoubleGuitar":
instrumentPart = "PART GUITAR COOP";
break;
case "DoubleBass":
instrumentPart = "PART BASS";
break;
case "Drums":
instrumentPart = "PART DRUMS";
break;
default:
instrumentPart = "PART GUITAR";
break;
}
switch (chartSelection.difficulty)
{
case "Expert":
greenKey = "C8";
redKey = "C#8";
yellowKey = "D8";
blueKey = "D#8";
orangeKey = "E8";
break;
case "Hard":
greenKey = "C7";
redKey = "C#7";
yellowKey = "D7";
blueKey = "D#7";
orangeKey = "E7";
break;
case "Medium":
greenKey = "C6";
redKey = "C#6";
yellowKey = "D6";
blueKey = "D#6";
orangeKey = "E6";
break;
case "Easy":
greenKey = "C5";
redKey = "C#5";
yellowKey = "D5";
blueKey = "D#5";
orangeKey = "E5";
break;
default:
greenKey = "C8";
redKey = "C#8";
yellowKey = "D8";
blueKey = "D#8";
orangeKey = "E8";
break;
}
MidiSequence mySequence = MidiSequence.Import(chartSelection.directory + "\\notes.mid");
MidiTrack[] myTracks = mySequence.GetTracks();
chartInfo.resolution = mySequence.Division;
MidiTrack trackToUse = new MidiTrack();
uint totalTickValue = 0;
// Go through each event in the first track (which contains the BPM changes)
// and parse the resulting string.
for (int i = 0; i < myTracks[0].Events.Count; i++)
{
Toub.Sound.Midi.MidiEvent currEvent = myTracks[0].Events[i];
string eventString = currEvent.ToString();
string[] splitEventString = eventString.Split('\t');
// Since ticks are stored relative to each other (e.g. 300 ticks
// until next note), we must maintain the total tick amout.
totalTickValue += Convert.ToUInt32(splitEventString[1]);
if (splitEventString[0] == "Tempo")
{
// In midi files, bpm chages are stored as "microseconds per quarter note"
// and must be converted to BPM, and then into the non decimal format the game
// uses.
double currBPMDouble = 60000000 / Convert.ToDouble(splitEventString[3]);
uint BPMToAdd = (uint)(currBPMDouble * 1000);
BPMChanges.Add(new BPMChange(totalTickValue, BPMToAdd));
}
}
trackToUse = new MidiTrack();
// Find the specified instrument's track
foreach (MidiTrack currTrack in myTracks)
{
string trackHeader = currTrack.Events[0].ToString();
string[] splitHeader = trackHeader.Split('\t');
// -If we come across a "T1 GEMS" track, we're in GH1 territory.
// -GH2/FoF has both PART BASS and PART RHYTHM (one or the other depending
// on the chart).
if (((splitHeader[3] == instrumentPart) || (splitHeader[3] == "T1 GEMS")) ||
((splitHeader[3] == "PART RHYTHM") && (instrumentPart == "PART BASS")))
{
trackToUse = currTrack;
}
}
totalTickValue = 0;
uint currTickValue = 0;
Note currNote = new Note();
bool blankNote = true;
// Scan through and record every note specific to the selected difficulty
for (int i = 0; i < trackToUse.Events.Count; i++)
{
string currEvent = trackToUse.Events[i].ToString();
string[] splitEvent = currEvent.Split('\t');
currTickValue = Convert.ToUInt32(splitEvent[1]);
totalTickValue += currTickValue;
// We need to specify wether a note is blank or not so we don't add
// blank notes from other difficulties into the chart, but if we have
// a filled out note, any nonzero tick value means we are moving to a
// new note, so we must cut our ties and add this note to the chart.
if ((currTickValue != 0) && !blankNote)
{
notechartToReturn.notes.Add(currNote);
currNote = new Note();
blankNote = true;
}
// The "0x64" I think means "not was hit." There is another
// set of notes that use "0x00" that all appear slightly after
// the "0x64" notes.
if ((splitEvent[0] == "NoteOn") && (splitEvent[4] != "0x00"))
{
// Only consider notes within the octave our difficulty is in.
if ((splitEvent[3] == greenKey) || (splitEvent[3] == redKey) ||
(splitEvent[3] == yellowKey) || (splitEvent[3] == blueKey) ||
(splitEvent[3] == orangeKey))
{
// If it's a new note, we need to setup the tick value of it.
if (blankNote)
{
currNote.tickValue = totalTickValue;
blankNote = false;
}
if (splitEvent[3] == greenKey)
{
currNote.addNote(0);
}
else if (splitEvent[3] == redKey)
{
currNote.addNote(1);
}
else if (splitEvent[3] == yellowKey)
{
currNote.addNote(2);
}
else if (splitEvent[3] == blueKey)
{
currNote.addNote(3);
}
else if (splitEvent[3] == orangeKey)
{
currNote.addNote(4);
}
}
}
}
return(notechartToReturn);
}
