/// <summary>
/// Get the default BFXR parameters.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters Default()
{
var p = new BfxrParameters();
foreach (PropertyInfo prop in typeof(BfxrParameters).GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
var attr = prop.GetCustomAttribute <ParamAttribute>();
if (attr != null)
{
prop.SetValue(p, attr.Default);
}
}
return(p);
}
/// <summary>
/// Generate parameters for a random explosion sound.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters Explosion()
{
var p = BfxrParameters.Default();
p.Wave = BfxrWave.Noise;
if (rand.NextDouble() < 0.5)
{
p.StartFrequency = randFloat(0.1, 0.4);
p.Slide = randFloat(-0.5, -0.1);
}
else
{
p.StartFrequency = randFloat(0.2, 0.7);
p.Slide = randFloat(-0.4, -0.2);
}
p.StartFrequency = p.StartFrequency * p.StartFrequency;
if (rand.NextDouble() < 0.2)
{
p.Slide = 0;
}
if (rand.NextDouble() < 0.33)
{
p.RepeatSpeed = randFloat(0.3, 0.8);
}
p.SustainTime = randFloat(0.1, 0.4);
p.DecayTime = randFloat(0, 0.5);
p.SustainPunch = randFloat(0.2, 0.8);
if (rand.NextDouble() < 0.5)
{
p.FlangerOffset = randFloat(-0.3, 0.6);
p.FlangerSweep = randFloat(-0.3, 0);
}
if (rand.NextDouble() < 0.33)
{
p.ChangeSpeed = randFloat(0.6, 0.9);
p.ChangeAmount = randFloat(-0.8, 0.8);
}
return(p);
}
/// <summary>
/// Generate parameters for a random coin pickup sound.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters PickupCoin()
{
var p = BfxrParameters.Default();
p.StartFrequency = randFloat(0.4, 0.9);
p.SustainTime = randFloat(0, 0.1);
p.DecayTime = randFloat(0.1, 0.5);
p.SustainPunch = randFloat(0.3, 0.6);
if (rand.NextDouble() < 0.5)
{
p.ChangeSpeed = randFloat(0.5, 0.7);
int numer = rand.Next(1, 8);
int denom = numer + rand.Next(2, 9);
p.ChangeAmount = (double)numer / (double)denom;
}
return(p);
}
/// <summary>
/// Deserialize a set of parameters from the BFXR tool.
/// </summary>
/// <param name="data">The BFXR parameterss, serialized as a string.</param>
public static BfxrParameters Deserialize(string data)
{
string[] fieldText = data.Split(new char[] { ',' });
var p = new BfxrParameters();
foreach (PropertyInfo prop in typeof(BfxrParameters).GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
var attr = prop.GetCustomAttribute <ParamAttribute>();
if (attr == null)
{
continue;
}
object value = attr.Default;
string s = attr.Order < fieldText.Length ? fieldText[attr.Order] : null;
if (s != null && s.Length > 0)
{
double v;
if (!double.TryParse(s, out v))
{
Console.WriteLine("Warning: Cannot parse value for {0}: {1}", prop.Name, s);
}
else
{
var cattr = attr as ContinuousParamAttribute;
if (cattr != null)
{
double nv = Math.Max(cattr.Minimum, Math.Min(cattr.Maximum, v));
if (nv != v)
{
Console.WriteLine("Warning: Value {0} out of range for {1}, should be {2} .. {3}", v, prop.Name, cattr.Minimum, cattr.Maximum);
}
value = nv;
}
else
{
value = (BfxrWave)(Math.Max(0, Math.Min(8, (int)v)));
}
}
}
prop.SetValue(p, value);
}
return(p);
}
/// <summary>
/// Deserialize a set of parameters from the BFXR tool.
/// </summary>
/// <param name="data">The BFXR parameterss, serialized as a string.</param>
public static BfxrParameters Deserialize(string data)
{
string[] fieldText = data.Split(new char[]{ ',' });
var p = new BfxrParameters();
foreach (PropertyInfo prop in typeof(BfxrParameters).GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
var attr = prop.GetCustomAttribute<ParamAttribute>();
if (attr == null)
continue;
object value = attr.Default;
string s = attr.Order < fieldText.Length ? fieldText[attr.Order] : null;
if (s != null && s.Length > 0)
{
double v;
if (!double.TryParse(s, out v))
{
Console.WriteLine("Warning: Cannot parse value for {0}: {1}", prop.Name, s);
}
else
{
var cattr = attr as ContinuousParamAttribute;
if (cattr != null)
{
double nv = Math.Max(cattr.Minimum, Math.Min(cattr.Maximum, v));
if (nv != v)
{
Console.WriteLine("Warning: Value {0} out of range for {1}, should be {2} .. {3}", v, prop.Name, cattr.Minimum, cattr.Maximum);
}
value = nv;
}
else
{
value = (BfxrWave)(Math.Max(0, Math.Min(8, (int)v)));
}
}
}
prop.SetValue(p, value);
}
return p;
}
/// <summary>
/// Get the default BFXR parameters.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters Default()
{
var p = new BfxrParameters();
foreach (PropertyInfo prop in typeof(BfxrParameters).GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
var attr = prop.GetCustomAttribute<ParamAttribute>();
if (attr != null)
{
prop.SetValue(p, attr.Default);
}
}
return p;
}
/// <summary>
/// Generate parameters for a random laser shoot sound.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters LaserShoot()
{
var p = BfxrParameters.Default();
switch (rand.Next(0, 12) / 5)
{
case 0:
p.Wave = BfxrWave.Square;
break;
case 1:
p.Wave = BfxrWave.Saw;
break;
case 2:
p.Wave = BfxrWave.Sine;
break;
}
p.StartFrequency = randFloat(0.5, 1.0);
p.MinFrequency = Math.Max(0.2, p.StartFrequency - randFloat(0.2, 0.8));
p.Slide = randFloat(-0.35, -0.15);
if (rand.NextDouble() < 0.33)
{
p.StartFrequency = randFloat(0, 0.6);
p.MinFrequency = randFloat(0, 0.1);
p.Slide = randFloat(-0.65, -0.35);
}
if (p.Wave == BfxrWave.Square)
{
if (rand.NextDouble() < 0.5)
{
p.SquareDuty = randFloat(0, 0.5);
p.DutySweep = randFloat(0, 0.2);
}
else
{
p.SquareDuty = randFloat(0.4, 0.9);
p.DutySweep = randFloat(-0.7, 0);
}
}
p.SustainTime = randFloat(0.1, 0.3);
p.DecayTime = randFloat(0, 0.4);
if (rand.NextDouble() < 0.5)
{
p.SustainPunch = randFloat(0, 0.3);
}
if (rand.NextDouble() < 0.33)
{
p.FlangerOffset = randFloat(0, 0.2);
p.FlangerSweep = randFloat(-0.2, 0);
}
if (rand.NextDouble() < 0.5)
{
p.HPFilterCutoff = randFloat(0, 0.3);
}
return(p);
}
/// <summary>
/// Generate parameters for a random hit or hurt sound.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters HitHurt()
{
var p = BfxrParameters.Default();
return(p);
}
/// <summary>
/// Generate parameters for a random powerup sound.
/// </summary>
/// <returns>BFXR parameters.</returns>
public static BfxrParameters Powerup()
{
var p = BfxrParameters.Default();
return(p);
}
public BfxrGenerator(BfxrParameters p)
{
this.rand = new Random();
this.state.period = 100.0 / (p.StartFrequency * p.StartFrequency + 0.001);
this.state.maxPeriod = 100.0 / (p.MinFrequency * p.MinFrequency + 0.001);
this.state.slide = 1.0 - 0.01 * p.Slide * p.Slide * p.Slide;
this.state.deltaSlide = -0.000001 * p.DeltaSlide * p.DeltaSlide * p.DeltaSlide;
this.state.squareDuty = 0;
this.state.dutySweep = 0;
if (p.Wave == BfxrWave.Square)
{
this.state.squareDuty = 0.5 - 0.5 * p.SquareDuty;
this.state.dutySweep = -0.00005 * p.DutySweep;
}
this.state.changePeriod = (int)((1.1 - p.ChangeRepeat) * (20000 / 1.1) + 32);
this.state.changePeriodTime = 0;
this.state.changeAmount = p.ChangeAmount > 0
? 1.0 - 0.9 * p.ChangeAmount * p.ChangeAmount
: 1.0 + 10.0 * p.ChangeAmount * p.ChangeAmount;
this.state.changeAmount2 = p.ChangeAmount2 > 0
? 1.0 - 0.9 * p.ChangeAmount2 * p.ChangeAmount2
: 1.0 + 10.0 * p.ChangeAmount2 * p.ChangeAmount2;
this.state.changeTime = 0;
this.state.changeTime2 = 0;
this.state.changeLimit = p.ChangeSpeed == 1.0
? 0
: (int)(((1.0 - p.ChangeSpeed) * (1.0 - p.ChangeSpeed) * 20000 + 32) *
(1.0 - p.ChangeRepeat + 0.1) / 1.1);
this.state.changeLimit2 = p.ChangeSpeed2 == 1.0
? 0
: (int)(((1.0 - p.ChangeSpeed2) * (1.0 - p.ChangeSpeed2) * 20000 + 32) *
(1.0 - p.ChangeRepeat + 0.1) / 1.1);
this.initState = this.state;
this.pinkGenerator = new PinkGenerator(this.rand);
this.masterVolume = p.MasterVolume * p.MasterVolume;
this.wave = p.Wave;
double attackTime = Math.Max(0, p.AttackTime);
double sustainTime = Math.Max(0.01, p.SustainTime);
double decayTime = Math.Max(0, p.DecayTime);
double totalTime = attackTime + sustainTime + decayTime;
if (totalTime < MinLength)
{
double fac = MinLength / totalTime;
attackTime *= fac;
sustainTime *= fac;
decayTime *= fac;
}
this.sustainPunch = p.SustainPunch;
this.phase = 0;
this.minFrequency = p.MinFrequency;
this.muted = false;
this.overtones = (int)(p.Overtones * 10);
this.overtoneFalloff = p.OvertoneFalloff;
this.bitcrushFreq = 1 - Math.Pow(p.BitCrush, 1.0 / 3.0);
this.bitcrushFreqSweep = -0.000015 * p.BitCrushSweep;
this.bitcrushPhase = 0;
this.bitcrushLast = 0;
this.compressionFactor = 1 / (1 + 4 * p.CompressionAmount);
this.filters = p.LPFilterCutoff != 1.0 || p.HPFilterCutoff != 0.0;
this.lpFilterOn = p.LPFilterCutoff != 1.0;
this.lpFilterPos = 0.0;
this.lpFilterDeltaPos = 0.0;
this.lpFilterCutoff = 0.1 * p.LPFilterCutoff * p.LPFilterCutoff * p.LPFilterCutoff;
this.lpFilterDeltaCutoff = 1.0 + 0.0001 * p.LPFilterCutoffSweep;
this.lpFilterDamping = 1.0 - 5.0 / (1.0 + 20 * p.LPFilterResonance * p.LPFilterResonance) * (0.01 + this.lpFilterCutoff);
this.hpFilterPos = 0.0;
this.hpFilterCutoff = 0.1 * p.HPFilterCutoff * p.HPFilterCutoff;
this.hpFilterDeltaCutoff = 1.0 + 0.0003 * p.HPFilterCutoffSweep;
this.vibratoPhase = 0;
this.vibratoSpeed = 0.01 * p.VibratoSpeed * p.VibratoSpeed;
this.vibratoAmplitude = 0.5 * p.VibratoDepth;
this.envelopeVolume = 0;
this.envelopeStage = 0;
this.envelopeTime = 0;
this.envelopeLength0 = (int)(100000 * attackTime * attackTime);
this.envelopeLength1 = (int)(100000 * sustainTime * sustainTime);
this.envelopeLength2 = (int)(100000 * decayTime * decayTime + 10);
this.envelopeLength = this.envelopeLength0;
this.envelopeFullLength = this.envelopeLength0 + this.envelopeLength1 + this.envelopeLength2;
this.envelopeInvLength0 = 1.0 / this.envelopeLength0;
this.envelopeInvLength1 = 1.0 / this.envelopeLength1;
this.envelopeInvLength2 = 1.0 / this.envelopeLength2;
this.flanger = p.FlangerOffset != 0.0 || p.FlangerSweep != 0.0;
this.flangerOffset = 1020.0 * p.FlangerOffset * p.FlangerOffset * (p.FlangerOffset > 0 ? 1 : -1);
this.flangerDeltaOffset = 0.2 * p.FlangerSweep * p.FlangerSweep * p.FlangerSweep;
this.flangerPos = 0;
this.flangerBuffer = new float[1024];
this.noiseBuffer = new float[32];
this.pinkNoiseBuffer = new float[32];
this.loResNoiseBuffer = new float[32];
for (int i = 0; i < this.noiseBuffer.Length; i++)
{
this.noiseBuffer[i] = 2.0f * (float)this.rand.NextDouble() - 1.0f;
}
for (int i = 0; i < this.pinkNoiseBuffer.Length; i++)
{
this.pinkNoiseBuffer[i] = this.pinkGenerator.Next();
}
float val = 0.0f;
for (int i = 0; i < this.loResNoiseBuffer.Length; i++)
{
if ((i % LoResNoisePeriod) == 0)
{
val = 2.0f * (float)this.rand.NextDouble() - 1.0f;
}
this.loResNoiseBuffer[i] = val;
}
this.repeatTime = 0;
this.repeatLimit = p.RepeatSpeed == 0.0
? 0
: (int)((1.0 - p.RepeatSpeed) * (1.0 - p.RepeatSpeed) * 20000) + 32;
}
public BfxrGenerator(BfxrParameters p)
{
this.rand = new Random();
this.state.period = 100.0 / (p.StartFrequency * p.StartFrequency + 0.001);
this.state.maxPeriod = 100.0 / (p.MinFrequency * p.MinFrequency + 0.001);
this.state.slide = 1.0 - 0.01 * p.Slide * p.Slide * p.Slide;
this.state.deltaSlide = -0.000001 * p.DeltaSlide * p.DeltaSlide * p.DeltaSlide;
this.state.squareDuty = 0;
this.state.dutySweep = 0;
if (p.Wave == BfxrWave.Square)
{
this.state.squareDuty = 0.5 - 0.5 * p.SquareDuty;
this.state.dutySweep = -0.00005 * p.DutySweep;
}
this.state.changePeriod = (int)((1.1 - p.ChangeRepeat) * (20000 / 1.1) + 32);
this.state.changePeriodTime = 0;
this.state.changeAmount = p.ChangeAmount > 0
? 1.0 - 0.9 * p.ChangeAmount * p.ChangeAmount
: 1.0 + 10.0 * p.ChangeAmount * p.ChangeAmount;
this.state.changeAmount2 = p.ChangeAmount2 > 0
? 1.0 - 0.9 * p.ChangeAmount2 * p.ChangeAmount2
: 1.0 + 10.0 * p.ChangeAmount2 * p.ChangeAmount2;
this.state.changeTime = 0;
this.state.changeTime2 = 0;
this.state.changeLimit = p.ChangeSpeed == 1.0
? 0
: (int)(((1.0 - p.ChangeSpeed) * (1.0 - p.ChangeSpeed) * 20000 + 32) *
(1.0 - p.ChangeRepeat + 0.1) / 1.1);
this.state.changeLimit2 = p.ChangeSpeed2 == 1.0
? 0
: (int)(((1.0 - p.ChangeSpeed2) * (1.0 - p.ChangeSpeed2) * 20000 + 32) *
(1.0 - p.ChangeRepeat + 0.1) / 1.1);
this.initState = this.state;
this.pinkGenerator = new PinkGenerator(this.rand);
this.masterVolume = p.MasterVolume * p.MasterVolume;
this.wave = p.Wave;
double attackTime = Math.Max(0, p.AttackTime);
double sustainTime = Math.Max(0.01, p.SustainTime);
double decayTime = Math.Max(0, p.DecayTime);
double totalTime = attackTime + sustainTime + decayTime;
if (totalTime < MinLength)
{
double fac = MinLength / totalTime;
attackTime *= fac;
sustainTime *= fac;
decayTime *= fac;
}
this.sustainPunch = p.SustainPunch;
this.phase = 0;
this.minFrequency = p.MinFrequency;
this.muted = false;
this.overtones = (int)(p.Overtones * 10);
this.overtoneFalloff = p.OvertoneFalloff;
this.bitcrushFreq = 1 - Math.Pow(p.BitCrush, 1.0 / 3.0);
this.bitcrushFreqSweep = -0.000015 * p.BitCrushSweep;
this.bitcrushPhase = 0;
this.bitcrushLast = 0;
this.compressionFactor = 1 / (1 + 4 * p.CompressionAmount);
this.filters = p.LPFilterCutoff != 1.0 || p.HPFilterCutoff != 0.0;
this.lpFilterOn = p.LPFilterCutoff != 1.0;
this.lpFilterPos = 0.0;
this.lpFilterDeltaPos = 0.0;
this.lpFilterCutoff = 0.1 * p.LPFilterCutoff * p.LPFilterCutoff * p.LPFilterCutoff;
this.lpFilterDeltaCutoff = 1.0 + 0.0001 * p.LPFilterCutoffSweep;
this.lpFilterDamping = 1.0 - 5.0 / (1.0 + 20 * p.LPFilterResonance * p.LPFilterResonance) * (0.01 + this.lpFilterCutoff);
this.hpFilterPos = 0.0;
this.hpFilterCutoff = 0.1 * p.HPFilterCutoff * p.HPFilterCutoff;
this.hpFilterDeltaCutoff = 1.0 + 0.0003 * p.HPFilterCutoffSweep;
this.vibratoPhase = 0;
this.vibratoSpeed = 0.01 * p.VibratoSpeed * p.VibratoSpeed;
this.vibratoAmplitude = 0.5 * p.VibratoDepth;
this.envelopeVolume = 0;
this.envelopeStage = 0;
this.envelopeTime = 0;
this.envelopeLength0 = (int)(100000 * attackTime * attackTime);
this.envelopeLength1 = (int)(100000 * sustainTime * sustainTime);
this.envelopeLength2 = (int)(100000 * decayTime * decayTime + 10);
this.envelopeLength = this.envelopeLength0;
this.envelopeFullLength = this.envelopeLength0 + this.envelopeLength1 + this.envelopeLength2;
this.envelopeInvLength0 = 1.0 / this.envelopeLength0;
this.envelopeInvLength1 = 1.0 / this.envelopeLength1;
this.envelopeInvLength2 = 1.0 / this.envelopeLength2;
this.flanger = p.FlangerOffset != 0.0 || p.FlangerSweep != 0.0;
this.flangerOffset = 1020.0 * p.FlangerOffset * p.FlangerOffset * (p.FlangerOffset > 0 ? 1 : -1);
this.flangerDeltaOffset = 0.2 * p.FlangerSweep * p.FlangerSweep * p.FlangerSweep;
this.flangerPos = 0;
this.flangerBuffer = new float[1024];
this.noiseBuffer = new float[32];
this.pinkNoiseBuffer = new float[32];
this.loResNoiseBuffer = new float[32];
for (int i = 0; i < this.noiseBuffer.Length; i++)
{
this.noiseBuffer[i] = 2.0f * (float)this.rand.NextDouble() - 1.0f;
}
for (int i = 0; i < this.pinkNoiseBuffer.Length; i++)
{
this.pinkNoiseBuffer[i] = this.pinkGenerator.Next();
}
float val = 0.0f;
for (int i = 0; i < this.loResNoiseBuffer.Length; i++)
{
if ((i % LoResNoisePeriod) == 0)
{
val = 2.0f * (float)this.rand.NextDouble() - 1.0f;
}
this.loResNoiseBuffer[i] = val;
}
this.repeatTime = 0;
this.repeatLimit = p.RepeatSpeed == 0.0
? 0
: (int)((1.0 - p.RepeatSpeed) * (1.0 - p.RepeatSpeed) * 20000) + 32;
}
