static int _currentPitch = -1; // -1 表示尚未开始
// 初始化音符序列
public static void InitialSequence(int count)
{
StopCurrent();
var chord = new Chord("C");
int start = (int)Pitch.C4;
_sequence = new List <int>();
while (_sequence.Count < count)
{
// 音符不要越过最大值
// TODO: 试验一下找一个不是特别高的音作为最高音
if (start >= (int)Pitch.G9)
{
// 保护
if (_sequence.Count == 0)
{
break;
}
_sequence.Add(_sequence[_sequence.Count - 1]); // 用最后一个重复填充
}
else if (chord.Contains((Pitch)start))
{
_sequence.Add(start);
}
start++;
}
_sequence.Reverse();
_currentPitch = -1;
}
public void Contains()
{
Chord cmajor = new Chord("C");
Pitch[] cmajorPitches = new Pitch[] {
Pitch.C2, Pitch.E2, Pitch.G2
};
Pitch[] cmajorNotPitches = new Pitch[] {
Pitch.CSharp2, Pitch.D2, Pitch.DSharp2, Pitch.F2, Pitch.FSharp2, Pitch.GSharp2,
Pitch.A2, Pitch.ASharp2
};
foreach (Pitch p in cmajorPitches)
{
Assert.True(cmajor.Contains(p));
}
foreach (Pitch p in cmajorNotPitches)
{
Assert.False(cmajor.Contains(p));
}
Chord bbminor = new Chord("Bbm");
Pitch[] bbminorPitches = new Pitch[] {
Pitch.ASharp2, Pitch.CSharp3, Pitch.F3
};
Pitch[] bbminorNotPitches = new Pitch[] {
Pitch.B2, Pitch.C3, Pitch.D3, Pitch.DSharp3, Pitch.E3, Pitch.G3, Pitch.FSharp3,
Pitch.GSharp3, Pitch.A3
};
foreach (Pitch p in bbminorPitches)
{
Assert.True(bbminor.Contains(p));
}
foreach (Pitch p in bbminorNotPitches)
{
Assert.False(bbminor.Contains(p));
}
}
void PlayChordRun(OutputDevice outputDevice, Chord chord, int millisecondsBetween)
{
Pitch previousNote = (Pitch)(-1);
for (Pitch pitch = Pitch.A0; pitch < Pitch.C8; ++pitch)
{
if (chord.Contains(pitch))
{
if (previousNote != (Pitch)(-1))
{
outputDevice.SendNoteOff(Channel.Channel1, previousNote, 80);
}
outputDevice.SendNoteOn(Channel.Channel1, pitch, 80);
Thread.Sleep(millisecondsBetween);
previousNote = pitch;
}
}
if (previousNote != (Pitch)(-1))
{
outputDevice.SendNoteOff(Channel.Channel1, previousNote, 80);
}
}
static int _currentPitch = -1; // -1 表示尚未开始
// 初始化音符序列
public static void InitialSequence(int count)
{
StopCurrent();
var chord = new Chord("C");
int start = (int)Pitch.C4;
_sequence = new List <int>();
while (_sequence.Count < count)
{
if (chord.Contains((Pitch)start))
{
_sequence.Add(start);
}
start++;
}
_sequence.Reverse();
_currentPitch = -1;
}
