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Shuffle.cpp
52 lines (44 loc) · 1.28 KB
/
Shuffle.cpp
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#include "Shuffle.h"
#include "Utilities.h"
#include <Arduino.h>
#define shuffleDelay(g,s) (g/96L) * s * 2L
#define BEATS 16
Shuffle::Shuffle()
: gate(0), beat(0), state{0, Signal::Low, {Signal::Low, Signal::Low, Signal::Low, Signal::Low}, {false, false, false, false}} {
}
void Shuffle::clock(Signal signal) {
unsigned long now = millis();
if (signal == Signal::Rising) {
gate = now - state.lastClock;
state.lastClock = now;
++beat;
Utilities::cycle(beat, 0, BEATS - 1);
newCycle();
}
state.clockSignal = signal;
}
Signal Shuffle::tick(int track, int shuffle) {
Signal signal;
if(shuffle == 0 || gate == 0 || beat % 2 == 0) signal = state.clockSignal;
else signal = shuffleClock(track, shuffle);
state.shuffleSignal[track] = signal;
return signal;
}
void Shuffle::newCycle() {
for(int track = 0; track < 4; ++track) state.newCycle[track] = true;
}
void Shuffle::reset() {
beat = 0;
}
Signal Shuffle::shuffleClock(int track, int shuffle) {
Signal signal = Signal::Low;
if (!state.newCycle[track]) {
signal = state.clockSignal;
} else if ((millis() - state.lastClock) > shuffleDelay(gate, shuffle)) {
if (state.shuffleSignal[track] == Signal::Low) {
signal = Signal::Rising;
state.newCycle[track] = false;
}
}
return signal;
}