public static int GetHarmonic(int section, int barIndex)
{
int[] progression = null;
if (progressions.TryGetValue(SongStructure.GetSection(section), out progression))
{
return(progression[barIndex]);
}
return(0);
}
protected override void OnNextBeat(int section, int bar, int beat, double dspTime, double beatTime)
{
if (bar == 0 && beat == 0)
{
sectionType = SongStructure.GetSection(section);
}
if (sectionType == SectionType.OUTRO && drumType != DrumType.CLAP)
{
return;
}
int augmentedBeat = 2 * (bar * 4 + beat);
for (int i = 0; i < 2; ++i)
{
float volume = 1.0f;
float p = RandomNumber.NextFloat(0.0f, 1.0f);
bool play = false;
switch (drumType)
{
case DrumType.KICK:
play = p < 0.0025f || (p < 0.97f && augmentedBeat % 8 == 0);
break;
case DrumType.SNARE:
play = p < 0.0025f || augmentedBeat % 8 == 4;
if (augmentedBeat % 8 != 4)
{
volume = RandomNumber.NextFloat(0.75f, 1.0f);
}
break;
case DrumType.CLAP:
play = p < 0.0025f || augmentedBeat % 8 == 4;
break;
case DrumType.HH_CLOSED:
play = p < 0.001f || augmentedBeat % 4 == 2 || (sectionType == SectionType.CHORUS && augmentedBeat % 2 == 0 && p < 0.9f);
if (augmentedBeat % 4 != 2)
{
volume = RandomNumber.NextFloat(0.75f, 1.0f);
}
break;
case DrumType.HH_OPEN:
play = augmentedBeat % 32 == 0;
break;
}
if (play)
{
double playTime = dspTime + i * 0.5 * beatTime;
instrument.PlayNote(playTime, 0, volume);
}
++augmentedBeat;
}
}
private void OnNextBeat(int section, int bar, int beat, double dspTime, double beatTime)
{
if (bar == 0 && beat == 0)
{
sectionType = SongStructure.GetSection(section);
if (sectionType == SectionType.CHORUS && PerformerSelector.numPerformers > 5)
{
//source.clip = crash[index];
source.PlayScheduled(dspTime);
//index = (index + 1) % crash.Length;
}
}
}
protected override void Awake()
{
base.Awake();
lines = new Dictionary <SectionType, Dictionary <int, int> >();
for (int i = 0; i < SongStructure.Length(); ++i)
{
var section = SongStructure.GetSection(i);
if (!lines.ContainsKey(section))
{
lines.Add(section, new Dictionary <int, int>());
}
}
}
protected override void OnNextBeat(int section, int bar, int beat, double dspTime, double beatTime)
{
SectionType sectionType = SongStructure.GetSection(section);
if (beat == beatOffset || (sectionType == SectionType.CHORUS && beat == ((beatOffset + 2) % 4)))
{
lastNote += RandomNumber.NextInt(-Scale.scaleLength / 4, Scale.scaleLength / 2);
lastNote = System.Math.Max(-Scale.scaleLength / 4, System.Math.Min(Scale.scaleLength, lastNote));
Dictionary <int, int> sectionLines = null;
if (lines.TryGetValue(sectionType, out sectionLines))
{
int key = bar * numBeats + beat;
int noteIndex = 0;
if (!sectionLines.TryGetValue(key, out noteIndex))
{
noteIndex = HarmonicProgression.GetHarmonic(section, bar) + lastNote;
sectionLines.Add(key, noteIndex);
}
instrument.PlayNote(dspTime, noteIndex, RandomNumber.NextFloat(0.9f, 1.0f));
}
}
}
public static void Initialize(int numBars)
{
markov = new MarkovChain(8, 1);
progressions = new Dictionary <SectionType, int[]>();
for (int i = 0; i < SongStructure.Length(); ++i)
{
var section = SongStructure.GetSection(i);
if (!progressions.ContainsKey(section))
{
if (section != SectionType.BRIDGE)
{
markov.Reset();
}
int[] progression = new int[numBars];
for (int bar = 0; bar < numBars; ++bar)
{
progression[bar] = markov.CurrentState;
markov.GenerateNextState();
}
progressions.Add(section, progression);
}
}
}