public static Patch PushSound(RNG rng)
{
Patch result = new Patch();
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.SINE)
{
result.wave_type = Wave.NOISE;
}
if (result.wave_type == Wave.SQUARE)
{
result.wave_type = Wave.NOISE;
}
result.base_freq = 0.1 + rng.Frnd(0.4);
result.freq_ramp = 0.05 + rng.Frnd(0.2);
result.env_attack = 0.01 + rng.Frnd(0.09);
result.env_sustain = 0.01 + rng.Frnd(0.09);
result.env_decay = 0.01 + rng.Frnd(0.09);
result.repeat_speed = 0.3 + rng.Frnd(0.5);
result.pha_offset = -0.3 + rng.Frnd(0.9);
result.pha_ramp = -rng.Frnd(0.3);
result.arp_speed = 0.6 + rng.Frnd(0.3);
result.arp_mod = 0.8 - rng.Frnd(1.6);
return(result);
}
public static Patch Jump(RNG rng)
{
Patch result = new Patch();
result.wave_type = Wave.SQUARE;
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
result.duty = rng.Frnd(0.6);
result.base_freq = 0.3 + rng.Frnd(0.3);
result.freq_ramp = 0.1 + rng.Frnd(0.2);
result.env_attack = 0.0;
result.env_sustain = 0.1 + rng.Frnd(0.3);
result.env_decay = 0.1 + rng.Frnd(0.2);
if (rng.Rnd(1) != 0)
{
result.hpf_freq = rng.Frnd(0.3);
}
if (rng.Rnd(1) != 0)
{
result.lpf_freq = 1.0 - rng.Frnd(0.6);
}
return(result);
}
public static Patch BlipSelect(RNG rng)
{
Patch result = new Patch();
result.wave_type = (Wave)rng.Rnd(1);
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = (Wave)rng.Rnd(1);
}
if (result.wave_type == Wave.SQUARE)
{
result.duty = rng.Frnd(0.6);
}
result.base_freq = 0.2 + rng.Frnd(0.4);
result.env_attack = 0.0;
result.env_sustain = 0.1 + rng.Frnd(0.1);
result.env_decay = rng.Frnd(0.2);
result.hpf_freq = 0.1;
return(result);
}
public static Patch PowerUp(RNG rng)
{
Patch result = new Patch();
if (rng.Rnd(1) != 0)
{
result.wave_type = Wave.SAWTOOTH;
}
else
{
result.duty = rng.Frnd(0.6);
}
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
if (rng.Rnd(1) != 0)
{
result.base_freq = 0.2 + rng.Frnd(0.3);
result.freq_ramp = 0.1 + rng.Frnd(0.4);
result.repeat_speed = 0.4 + rng.Frnd(0.4);
}
else
{
result.base_freq = 0.2 + rng.Frnd(0.3);
result.freq_ramp = 0.05 + rng.Frnd(0.2);
if (rng.Rnd(1) != 0)
{
result.vib_strength = rng.Frnd(0.7);
result.vib_speed = rng.Frnd(0.6);
}
}
result.env_attack = 0.0;
result.env_sustain = rng.Frnd(0.4);
result.env_decay = 0.1 + rng.Frnd(0.4);
return(result);
}
public static Patch PickupCoin(RNG rng)
{
Patch result = new Patch();
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
result.base_freq = 0.4 + rng.Frnd(0.5);
result.env_attack = 0.0;
result.env_sustain = rng.Frnd(0.1);
result.env_decay = 0.1 + rng.Frnd(0.4);
result.env_punch = 0.3 + rng.Frnd(0.3);
if (rng.Rnd(1) != 0)
{
result.arp_speed = 0.5 + rng.Frnd(0.2);
float num = (rng.Irnd(7) | 1) + 1;
float den = num + (rng.Irnd(7) | 1) + 2;
result.arp_mod = num / den;
}
return(result);
}
public List <float> Generate()
{
List <float> output = new List <float>();
// Misnomer, repeat resets things at start
repeat();
// Filter
fltp = 0.0f;
fltdp = 0.0f;
fltw = (float)Math.Pow(patch.lpf_freq, 3.0f) * 0.1f;
fltw_d = 1.0f + (float)patch.lpf_ramp * 0.0001f;
fltdmp = 5.0f / (1.0f + (float)Math.Pow(patch.lpf_resonance, 2.0f) * 20.0f) * (0.01f + fltw);
if (fltdmp > 0.8f)
{
fltdmp = 0.8f;
}
fltphp = 0.0f;
flthp = (float)Math.Pow(patch.hpf_freq, 2.0f) * 0.1f;
flthp_d = 1.0f + (float)patch.hpf_ramp * 0.0003f;
// Vibrato
vib_phase = 0.0f;
vib_speed = (float)Math.Pow(patch.vib_speed, 2.0f) * 0.01f;
vib_amp = (float)patch.vib_strength * 0.5f;
// Envelope
env_vol = 0.0f;
env_stage = 0;
env_time = 0;
env_length[0] = (int)(patch.env_attack * patch.env_attack * 100000.0f);
env_length[1] = (int)(patch.env_sustain * patch.env_sustain * 100000.0f);
env_length[2] = (int)(patch.env_decay * patch.env_decay * 100000.0f);
env_length_total = env_length[0] + env_length[1] + env_length[2];
// Phaser
phase = 0;
fphase = (float)Math.Pow(patch.pha_offset, 2.0f) * 1020.0f;
if (patch.pha_offset < 0.0f)
{
fphase = -fphase;
}
fdphase = (float)Math.Pow(patch.pha_ramp, 2.0f) * 1.0f;
if (patch.pha_ramp < 0.0f)
{
fdphase = -fdphase;
}
iphase = Math.Abs((int)fphase);
ipp = 0;
for (int i = 0; i < 1024; i++)
{
phaser_buffer[i] = 0.0f;
}
// Noise
for (int i = 0; i < 32; i++)
{
noise_buffer[i] = rng.Frnd(2.0f) - 1.0f;
}
// Repeat
rep_limit = (int)(Math.Pow(1.0f - patch.repeat_speed, 2.0f) * 20000 + 32);
if (patch.repeat_speed == 0.0f)
{
rep_limit = 0;
}
gain = Math.Exp(sound_vol) - 1.0;
// Generate
//bool buffer_complete = false;
int buffer_length = env_length_total;
for (int t = 0; ; ++t)
{
// Repeats
if (rep_limit != 0 && ++rep_time >= rep_limit)
{
repeat();
}
// Arpeggio (single)
if (arp_limit != 0 && t >= arp_limit)
{
arp_limit = 0;
fperiod *= arp_mod;
}
// Frequency slide
fslide += fdslide;
fperiod *= fslide;
if (fperiod > fmaxperiod)
{
fperiod = fmaxperiod;
if (patch.freq_limit > 0.0f)
{
//buffer_complete = true;
}
}
// Vibrato
float rfperiod = (float)fperiod;
if (vib_amp > 0.0f)
{
vib_phase += vib_speed;
rfperiod = (float)fperiod * (float)(1.0 + Math.Sin(vib_phase) * vib_amp);
}
period = (int)rfperiod;
if (period < 8)
{
period = 8;
}
// Duty cycle slide
square_duty += square_slide;
if (square_duty < 0.0f)
{
square_duty = 0.0f;
}
if (square_duty > 0.5f)
{
square_duty = 0.5f;
}
// Volume envelope
env_time++;
if (env_time > env_length[env_stage])
{
env_time = 1;
env_stage++;
while (env_stage < 3 && env_length[env_stage] == 0)
{
env_stage++;
}
if (env_stage == 3)
{
break;
}
}
if (env_stage == 0)
{
env_vol = (float)env_time / env_length[0];
}
else if (env_stage == 1)
{
env_vol = 1.0f + (float)Math.Pow(1.0f - (float)env_time / env_length[1], 1.0f) * 2.0f * (float)patch.env_punch;
}
else
{
// env_stage == 2
env_vol = 1.0f - (float)env_time / env_length[2];
}
// Phaser step
fphase += fdphase;
iphase = Math.Abs((int)fphase);
if (iphase > 1023)
{
iphase = 1023;
}
if (flthp_d != 0.0f)
{
flthp *= flthp_d;
if (flthp < 0.00001f)
{
flthp = 0.00001f;
}
if (flthp > 0.1f)
{
flthp = 0.1f;
}
}
// 8x supersampling
float sample = 0.0f;
for (int si = 0; si < 8; si++)
{
float sub_sample = 0.0f;
phase++;
if (phase >= period)
{
phase %= period;
if (patch.wave_type == Wave.NOISE)
{
for (int i = 0; i < 32; i++)
{
noise_buffer[i] = rng.Frnd(2.0f) - 1.0f;
}
}
}
// base waveform
float fp = (float)phase / period;
switch (patch.wave_type)
{
case Wave.SQUARE:
if (fp < square_duty)
{
sub_sample = 0.5f;
}
else
{
sub_sample = -0.5f;
}
break;
case Wave.SAWTOOTH:
sub_sample = 1.0f - fp * 2.0f;
break;
case Wave.SINE:
sub_sample = (float)Math.Sin(fp * 2.0f * Global.PI);
break;
case Wave.NOISE:
sub_sample = noise_buffer[(int)(phase * 32 / period)];
break;
case Wave.TRIANGLE:
sub_sample = Math.Abs(1.0f - fp * 2.0f) - 1.0f;
break;
case Wave.BREAKER:
sub_sample = Math.Abs(1.0f - fp * fp * 2.0f) - 1.0f;
break;
default:
break;
}
// Low-pass filter
float pp = fltp;
fltw *= fltw_d;
if (fltw < 0.0f)
{
fltw = 0.0f;
}
if (fltw > 0.1f)
{
fltw = 0.1f;
}
if (patch.lpf_freq != 1.0f)
{
fltdp += (sub_sample - fltp) * fltw;
fltdp -= fltdp * fltdmp;
}
else
{
fltp = sub_sample;
fltdp = 0.0f;
}
fltp += fltdp;
// High-pass filter
fltphp += fltp - pp;
fltphp -= fltphp * flthp;
sub_sample = fltphp;
// Phaser
phaser_buffer[ipp & 1023] = sub_sample;
sub_sample += phaser_buffer[(ipp - iphase + 1024) & 1023];
ipp = (ipp + 1) & 1023;
// Final accumulation and envelope application
sample += sub_sample * env_vol;
}
sample = sample / 8.0f * master_vol;
sample *= (float)gain;
output.Add(sample);
}
return(output);
}
public static Patch LaserShoot(RNG rng)
{
Patch result = new Patch();
result.wave_type = (Wave)rng.Rnd(2);
if (result.wave_type == Wave.SINE && rng.Rnd(1) != 0)
{
result.wave_type = (Wave)rng.Rnd(1);
}
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
result.base_freq = 0.5 + rng.Frnd(0.5);
result.freq_limit = result.base_freq - 0.2 - rng.Frnd(0.6);
if (result.freq_limit < 0.2)
{
result.freq_limit = 0.2;
}
result.freq_ramp = -0.15 - rng.Frnd(0.2);
if (rng.Rnd(2) == 0)
{
result.base_freq = 0.3 + rng.Frnd(0.6);
result.freq_limit = rng.Frnd(0.1);
result.freq_ramp = -0.35 - rng.Frnd(0.3);
}
if (rng.Rnd(1) != 0)
{
result.duty = rng.Frnd(0.5);
result.duty_ramp = rng.Frnd(0.2);
}
else
{
result.duty = 0.4 + rng.Frnd(0.5);
result.duty_ramp = -rng.Frnd(0.7);
}
result.env_attack = 0.0;
result.env_sustain = 0.1 + rng.Frnd(0.2);
result.env_decay = rng.Frnd(0.4);
if (rng.Rnd(1) != 0)
{
result.env_punch = rng.Frnd(0.3);
}
if (rng.Rnd(2) == 0)
{
result.pha_offset = rng.Frnd(0.2);
result.pha_ramp = -rng.Frnd(0.2);
}
if (rng.Rnd(1) != 0)
{
result.hpf_freq = rng.Frnd(0.3);
}
return(result);
}
public static Patch Bird(RNG rng)
{
Patch result = new Patch();
if (rng.Frnd(10) < 1)
{
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
result.env_attack = 0.4304400932967592 + rng.Frnd(0.2) - 0.1;
result.env_sustain = 0.15739346034252394 + rng.Frnd(0.2) - 0.1;
result.env_punch = 0.004488201744871758 + rng.Frnd(0.2) - 0.1;
result.env_decay = 0.07478075528212291 + rng.Frnd(0.2) - 0.1;
result.base_freq = 0.9865265720147687 + rng.Frnd(0.2) - 0.1;
result.freq_limit = 0 + rng.Frnd(0.2) - 0.1;
result.freq_ramp = -0.2995018224359539 + rng.Frnd(0.2) - 0.1;
if (rng.Frnd(1.0) < 0.5)
{
result.freq_ramp = 0.1 + rng.Frnd(0.15);
}
result.freq_dramp = 0.004598608156964473 + rng.Frnd(0.1) - 0.05;
result.vib_strength = -0.2202799497929496 + rng.Frnd(0.2) - 0.1;
result.vib_speed = 0.8084998703158364 + rng.Frnd(0.2) - 0.1;
result.arp_mod = 0;
result.arp_speed = 0;
result.duty = -0.9031808754347107 + rng.Frnd(0.2) - 0.1;
result.duty_ramp = -0.8128699999808343 + rng.Frnd(0.2) - 0.1;
result.repeat_speed = 0.6014860189319991 + rng.Frnd(0.2) - 0.1;
result.pha_offset = -0.9424902314367765 + rng.Frnd(0.2) - 0.1;
result.pha_ramp = -0.1055482222272056 + rng.Frnd(0.2) - 0.1;
result.lpf_freq = 0.9989765717851521 + rng.Frnd(0.2) - 0.1;
result.lpf_ramp = -0.25051720626043017 + rng.Frnd(0.2) - 0.1;
result.lpf_resonance = 0.32777871505494693 + rng.Frnd(0.2) - 0.1;
result.hpf_freq = 0.0023548750981756753 + rng.Frnd(0.2) - 0.1;
result.hpf_ramp = -0.002375673204842568 + rng.Frnd(0.2) - 0.1;
return(result);
}
if (rng.Frnd(10) < 1)
{
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
result.env_attack = 0.5277795946672003 + rng.Frnd(0.2) - 0.1;
result.env_sustain = 0.18243733568468432 + rng.Frnd(0.2) - 0.1;
result.env_punch = -0.020159754546840117 + rng.Frnd(0.2) - 0.1;
result.env_decay = 0.1561353422051903 + rng.Frnd(0.2) - 0.1;
result.base_freq = 0.9028855606533718 + rng.Frnd(0.2) - 0.1;
result.freq_limit = -0.008842787837148716;
result.freq_ramp = -0.1;
result.freq_dramp = -0.012891241489551925;
result.vib_strength = -0.17923136138403065 + rng.Frnd(0.2) - 0.1;
result.vib_speed = 0.908263385610142 + rng.Frnd(0.2) - 0.1;
result.arp_mod = 0.41690153355414894 + rng.Frnd(0.2) - 0.1;
result.arp_speed = 0.0010766233195860703 + rng.Frnd(0.2) - 0.1;
result.duty = -0.8735363011184684 + rng.Frnd(0.2) - 0.1;
result.duty_ramp = -0.7397985366747507 + rng.Frnd(0.2) - 0.1;
result.repeat_speed = 0.0591789344172107 + rng.Frnd(0.2) - 0.1;
result.pha_offset = -0.9961184222777699 + rng.Frnd(0.2) - 0.1;
result.pha_ramp = -0.08234769395850523 + rng.Frnd(0.2) - 0.1;
result.lpf_freq = 0.9412475115697335 + rng.Frnd(0.2) - 0.1;
result.lpf_ramp = -0.18261358925834958 + rng.Frnd(0.2) - 0.1;
result.lpf_resonance = 0.24541438107389477 + rng.Frnd(0.2) - 0.1;
result.hpf_freq = -0.01831940280978611 + rng.Frnd(0.2) - 0.1;
result.hpf_ramp = -0.03857383633171346 + rng.Frnd(0.2) - 0.1;
return(result);
}
if (rng.Frnd(10) < 1)
{
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
result.env_attack = 0.4304400932967592 + rng.Frnd(0.2) - 0.1;
result.env_sustain = 0.15739346034252394 + rng.Frnd(0.2) - 0.1;
result.env_punch = 0.004488201744871758 + rng.Frnd(0.2) - 0.1;
result.env_decay = 0.07478075528212291 + rng.Frnd(0.2) - 0.1;
result.base_freq = 0.9865265720147687 + rng.Frnd(0.2) - 0.1;
result.freq_limit = 0 + rng.Frnd(0.2) - 0.1;
result.freq_ramp = -0.2995018224359539 + rng.Frnd(0.2) - 0.1;
result.freq_dramp = 0.004598608156964473 + rng.Frnd(0.2) - 0.1;
result.vib_strength = -0.2202799497929496 + rng.Frnd(0.2) - 0.1;
result.vib_speed = 0.8084998703158364 + rng.Frnd(0.2) - 0.1;
result.arp_mod = -0.46410459213693644 + rng.Frnd(0.2) - 0.1;
result.arp_speed = -0.10955361249587248 + rng.Frnd(0.2) - 0.1;
result.duty = -0.9031808754347107 + rng.Frnd(0.2) - 0.1;
result.duty_ramp = -0.8128699999808343 + rng.Frnd(0.2) - 0.1;
result.repeat_speed = 0.7014860189319991 + rng.Frnd(0.2) - 0.1;
result.pha_offset = -0.9424902314367765 + rng.Frnd(0.2) - 0.1;
result.pha_ramp = -0.1055482222272056 + rng.Frnd(0.2) - 0.1;
result.lpf_freq = 0.9989765717851521 + rng.Frnd(0.2) - 0.1;
result.lpf_ramp = -0.25051720626043017 + rng.Frnd(0.2) - 0.1;
result.lpf_resonance = 0.32777871505494693 + rng.Frnd(0.2) - 0.1;
result.hpf_freq = 0.0023548750981756753 + rng.Frnd(0.2) - 0.1;
result.hpf_ramp = -0.002375673204842568 + rng.Frnd(0.2) - 0.1;
return(result);
}
if (rng.Frnd(5) > 1)
{
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SQUARE;
}
if (rng.Rnd(1) != 0)
{
result.arp_mod = 0.2697849293151393 + rng.Frnd(0.2) - 0.1;
result.arp_speed = -0.3131172257760948 + rng.Frnd(0.2) - 0.1;
result.base_freq = 0.8090588299313949 + rng.Frnd(0.2) - 0.1;
result.duty = -0.6210022920964955 + rng.Frnd(0.2) - 0.1;
result.duty_ramp = -0.00043441813553182567 + rng.Frnd(0.2) - 0.1;
result.env_attack = 0.004321877246874195 + rng.Frnd(0.2) - 0.1;
result.env_decay = 0.1 + rng.Frnd(0.2) - 0.1;
result.env_punch = 0.061737781504416146 + rng.Frnd(0.2) - 0.1;
result.env_sustain = 0.4987252564798832 + rng.Frnd(0.2) - 0.1;
result.freq_dramp = 0.31700340314222614 + rng.Frnd(0.2) - 0.1;
result.freq_limit = 0 + rng.Frnd(0.2) - 0.1;
result.freq_ramp = -0.163380391341416 + rng.Frnd(0.2) - 0.1;
result.hpf_freq = 0.4709005021145149 + rng.Frnd(0.2) - 0.1;
result.hpf_ramp = 0.6924667290539194 + rng.Frnd(0.2) - 0.1;
result.lpf_freq = 0.8351398631384511 + rng.Frnd(0.2) - 0.1;
result.lpf_ramp = 0.36616557192873134 + rng.Frnd(0.2) - 0.1;
result.lpf_resonance = -0.08685777111664439 + rng.Frnd(0.2) - 0.1;
result.pha_offset = -0.036084571580025544 + rng.Frnd(0.2) - 0.1;
result.pha_ramp = -0.014806445085568108 + rng.Frnd(0.2) - 0.1;
result.repeat_speed = -0.8094368475518489 + rng.Frnd(0.2) - 0.1;
result.vib_speed = 0.4496665457171294 + rng.Frnd(0.2) - 0.1;
result.vib_strength = 0.23413762515532424 + rng.Frnd(0.2) - 0.1;
}
else
{
result.arp_mod = -0.35697118026766184 + rng.Frnd(0.2) - 0.1;
result.arp_speed = 0.3581140690559588 + rng.Frnd(0.2) - 0.1;
result.base_freq = 1.3260897696157528 + rng.Frnd(0.2) - 0.1;
result.duty = -0.30984900436710694 + rng.Frnd(0.2) - 0.1;
result.duty_ramp = -0.0014374759133411626 + rng.Frnd(0.2) - 0.1;
result.env_attack = 0.3160357835682254 + rng.Frnd(0.2) - 0.1;
result.env_decay = 0.1 + rng.Frnd(0.2) - 0.1;
result.env_punch = 0.24323114016870148 + rng.Frnd(0.2) - 0.1;
result.env_sustain = 0.4 + rng.Frnd(0.2) - 0.1;
result.freq_dramp = 0.2866475886237244 + rng.Frnd(0.2) - 0.1;
result.freq_limit = 0 + rng.Frnd(0.2) - 0.1;
result.freq_ramp = -0.10956352368742976 + rng.Frnd(0.2) - 0.1;
result.hpf_freq = 0.20772718017889846 + rng.Frnd(0.2) - 0.1;
result.hpf_ramp = 0.1564090637378835 + rng.Frnd(0.2) - 0.1;
result.lpf_freq = 0.6021372770637031 + rng.Frnd(0.2) - 0.1;
result.lpf_ramp = 0.24016227139979027 + rng.Frnd(0.2) - 0.1;
result.lpf_resonance = -0.08787383821160144 + rng.Frnd(0.2) - 0.1;
result.pha_offset = -0.381597686151701 + rng.Frnd(0.2) - 0.1;
result.pha_ramp = -0.0002481687661373495 + rng.Frnd(0.2) - 0.1;
result.repeat_speed = 0.07812112809425686 + rng.Frnd(0.2) - 0.1;
result.vib_speed = -0.13648848579133943 + rng.Frnd(0.2) - 0.1;
result.vib_strength = 0.0018874158972302657 + rng.Frnd(0.2) - 0.1;
}
return(result);
}
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
if (result.wave_type == Wave.SAWTOOTH || result.wave_type == Wave.NOISE)
{
result.wave_type = Wave.SINE;
}
result.base_freq = 0.85 + rng.Frnd(0.15);
result.freq_ramp = 0.3 + rng.Frnd(0.15);
result.env_attack = 0 + rng.Frnd(0.09);
result.env_sustain = 0.2 + rng.Frnd(0.3);
result.env_decay = 0 + rng.Frnd(0.1);
result.duty = rng.Frnd(2.0) - 1.0;
result.duty_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.repeat_speed = 0.5 + rng.Frnd(0.1);
result.pha_offset = -0.3 + rng.Frnd(0.9);
result.pha_ramp = -rng.Frnd(0.3);
result.arp_speed = 0.4 + rng.Frnd(0.6);
result.arp_mod = 0.8 + rng.Frnd(0.1);
result.lpf_resonance = rng.Frnd(2.0) - 1.0;
result.lpf_freq = 1.0 - (float)Math.Pow(rng.Frnd(1.0), 3.0);
result.lpf_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
if (result.lpf_freq < 0.1 && result.lpf_ramp < -0.05)
{
result.lpf_ramp = -result.lpf_ramp;
}
result.hpf_freq = (float)Math.Pow(rng.Frnd(1.0), 5.0);
result.hpf_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 5.0);
return(result);
}
public static Patch Random(RNG rng)
{
Patch result = new Patch();
result.wave_type = (Wave)rng.Irnd((int)Wave.SIZE);
result.base_freq = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 2.0);
if (rng.Rnd(1) != 0)
{
result.base_freq = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0) + 0.5;
}
result.freq_limit = 0.0;
result.freq_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 5.0);
if (result.base_freq > 0.7 && result.freq_ramp > 0.2)
{
result.freq_ramp = -result.freq_ramp;
}
if (result.base_freq < 0.2 && result.freq_ramp < -0.05)
{
result.freq_ramp = -result.freq_ramp;
}
result.freq_dramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.duty = rng.Frnd(2.0) - 1.0;
result.duty_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.vib_strength = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.vib_speed = rng.Frnd(2.0) - 1.0;
result.env_attack = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.env_sustain = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 2.0);
result.env_decay = rng.Frnd(2.0) - 1.0;
result.env_punch = (float)Math.Pow(rng.Frnd(0.8), 2.0);
if (result.env_attack + result.env_sustain + result.env_decay < 0.2)
{
result.env_sustain += 0.2 + rng.Frnd(0.3);
result.env_decay += 0.2 + rng.Frnd(0.3);
}
result.lpf_resonance = rng.Frnd(2.0) - 1.0;
result.lpf_freq = 1.0 - (float)Math.Pow(rng.Frnd(1.0), 3.0);
result.lpf_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
if (result.lpf_freq < 0.1 && result.lpf_ramp < -0.05)
{
result.lpf_ramp = -result.lpf_ramp;
}
result.hpf_freq = (float)Math.Pow(rng.Frnd(1.0), 5.0);
result.hpf_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 5.0);
result.pha_offset = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.pha_ramp = (float)Math.Pow(rng.Frnd(2.0) - 1.0, 3.0);
result.repeat_speed = rng.Frnd(2.0) - 1.0;
result.arp_speed = rng.Frnd(2.0) - 1.0;
result.arp_mod = rng.Frnd(2.0) - 1.0;
return(result);
}
public static Patch Explosion(RNG rng)
{
Patch result = new Patch();
if (rng.Rnd(1) != 0)
{
result.base_freq = 0.1 + rng.Frnd(0.4);
result.freq_ramp = -0.1 + rng.Frnd(0.4);
}
else
{
result.base_freq = 0.2 + rng.Frnd(0.7);
result.freq_ramp = -0.2 - rng.Frnd(0.2);
}
result.base_freq *= result.base_freq;
if (rng.Rnd(4) == 0)
{
result.freq_ramp = 0.0;
}
if (rng.Rnd(2) == 0)
{
result.repeat_speed = 0.3 + rng.Frnd(0.5);
}
result.env_attack = 0.0;
result.env_sustain = 0.1 + rng.Frnd(0.3);
result.env_decay = rng.Frnd(0.5);
if (rng.Rnd(1) == 0)
{
result.pha_offset = -0.3 + rng.Frnd(0.9);
result.pha_ramp = -rng.Frnd(0.3);
}
result.env_punch = 0.2 + rng.Frnd(0.6);
if (rng.Rnd(1) != 0)
{
result.vib_strength = rng.Frnd(0.7);
result.vib_speed = rng.Frnd(0.6);
}
if (rng.Rnd(2) == 0)
{
result.arp_speed = 0.6 + rng.Frnd(0.3);
result.arp_mod = 0.8 - rng.Frnd(1.6);
}
return(result);
}