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implement cv mod for Euclidean. Note, this is implemented as an override, not a sum mod.

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This commit is contained in:
Adam Wonak
2025-06-29 20:33:00 -07:00
parent 792758f2a5
commit 17afa9882b
4 changed files with 64 additions and 87 deletions
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50
examples/Gravity/channel.h
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@ -20,6 +20,8 @@ enum CvDestination {
CV_DEST_DUTY,
CV_DEST_OFFSET,
CV_DEST_SWING,
CV_DEST_EUC_STEPS,
CV_DEST_EUC_HITS,
CV_DEST_LAST,
};
@ -80,11 +82,10 @@ class Channel {
bool isCvModActive() const { return cv_source != CV_NONE && cv_destination != CV_DEST_NONE; }
// Euclidean
void setSteps(byte val) { pattern.SetSteps(val); }
void setHits(byte val) { pattern.SetHits(val); }
byte getSteps() { pattern.GetSteps(); }
byte getHits() { pattern.GetHits(); }
void setSteps(int val) { pattern.SetSteps(val); }
void setHits(int val) { pattern.SetHits(val); }
byte getSteps() { return pattern.GetSteps(); }
byte getHits() { return pattern.GetHits(); }
/**
* @brief Processes a clock tick and determines if the output should be high or low.
@ -111,19 +112,14 @@ class Channel {
// Step check
if (current_tick_offset % mod_pulses == 0) {
bool hit = cvmod_probability >= random(0, 100);
if (pattern.IsActive()) {
// Euclidean rhythm check
switch (pattern.NextStep()) {
case Pattern::REST: // Rest when active or fall back to probability
hit = pattern.IsActive() ? false : hit;
break;
case Pattern::HIT: // Hit if probability is true
hit &= true;
break;
case Pattern::PADDING: // Padding returns only when active, always rest)
hit = false;
break;
}
// Euclidean rhythm check
switch (pattern.NextStep()) {
case Pattern::REST: // Rest when active or fall back to probability
hit = false;
break;
case Pattern::HIT: // Hit if probability is true
hit &= true;
break;
}
if (hit) {
output.High();
@ -139,16 +135,6 @@ class Channel {
}
void applyCvMod(int cv1_value, int cv2_value) {
if (!isCvModActive()) {
// If CV is off, ensure cv modded values match the base values.
cvmod_clock_mod_index = base_clock_mod_index;
cvmod_probability = base_probability;
cvmod_duty_cycle = base_duty_cycle;
cvmod_offset = base_offset;
cvmod_swing = base_swing;
return;
}
// Use the CV value for current selected cv source.
int value = (cv_source == CV_1) ? cv1_value : cv2_value;
@ -179,6 +165,14 @@ class Channel {
(cv_destination == CV_DEST_SWING)
? constrain(base_swing + map(value, -512, 512, -25, 25), 50, 95)
: base_swing;
if (cv_destination == CV_DEST_EUC_STEPS) {
pattern.SetSteps(map(value, -512, 512, 0, MAX_PATTERN_LEN));
}
if (cv_destination == CV_DEST_EUC_HITS) {
pattern.SetHits(map(value, -512, 512, 0, pattern.GetSteps()));
}
}
private: