74 lines
1.6 KiB
C++
Executable file
74 lines
1.6 KiB
C++
Executable file
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#if defined(ARDUINO) && ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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#endif
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#include "Metro.h"
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Metro::Metro(unsigned long interval_millis)
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{
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this->autoreset = 0;
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interval(interval_millis);
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reset();
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}
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// New creator so I can use either the original check behavior or benjamin.soelberg's
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// suggested one (see below).
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// autoreset = 0 is benjamin.soelberg's check behavior
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// autoreset != 0 is the original behavior
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Metro::Metro(unsigned long interval_millis, uint8_t autoreset)
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{
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this->autoreset = autoreset; // Fix by Paul Bouchier
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interval(interval_millis);
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reset();
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}
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void Metro::interval(unsigned long interval_millis)
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{
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this->interval_millis = interval_millis;
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}
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// Benjamin.soelberg's check behavior:
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// When a check is true, add the interval to the internal counter.
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// This should guarantee a better overall stability.
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// Original check behavior:
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// When a check is true, add the interval to the current millis() counter.
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// This method can add a certain offset over time.
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char Metro::check()
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{
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if (millis() - this->previous_millis >= this->interval_millis) {
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// As suggested by benjamin.soelberg@gmail.com, the following line
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// this->previous_millis = millis();
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// was changed to
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// this->previous_millis += this->interval_millis;
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// If the interval is set to 0 we revert to the original behavior
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if (this->interval_millis <= 0 || this->autoreset ) {
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this->previous_millis = millis();
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} else {
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this->previous_millis += this->interval_millis;
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}
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return 1;
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}
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return 0;
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}
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void Metro::reset()
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{
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this->previous_millis = millis();
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}
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