puzzle-box/pulse.h

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#pragma once
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#define MILLISECOND 1L
#define SECOND (1000 * MILLISECOND)
#define MINUTE (60 * SECOND)
#define HOUR (60 * MINUTE)
#define DAY (24 * HOUR)
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class Pulse {
public:
Pulse(unsigned long period);
/** Tick tells you if a period has elapsed. */
bool Tick();
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/** Until sets the duration of the next period. */
void Until(unsigned long next);
void Until(unsigned long next, unsigned long now);
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unsigned long period;
unsigned long nextEventMillis;
};