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Controller.cpp
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Controller.cpp
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#include "Controller.h"
//Button (Pin Number, Command, Note Number, Channel, Debounce Time)
Button::Button(byte pin, byte command, byte value, byte channel, byte debounce)
{
_pin = pin;
pinMode(_pin, INPUT_PULLUP);
_value = value;
_command = command;
_debounce = debounce;
_time = 0;
_busy = false;
_status = 0b00000010;
_last = 1;
Bcommand = command;
Bvalue = value;
Bchannel = channel;
Btoggle = 0;
}
byte Button::getValue()
{
// If BUSY bit not set - read button
if (bitRead(_status, 0) == false) { // If busy false
if (digitalRead(_pin) == _last) return 2; // If same as last state - exit
}
// If NEW Bit set - Key just pressed, record time
if (bitRead(_status, 1) == true) { // If new is true
bitSet(_status, 0); // Set busy TRUE
bitClear(_status, 1); // Set New FALSE
_time = millis();
return 255;
}
// Check if debounce time has passed - If no, exit
if (millis() - _time < _debounce) return 255;
// Debounce time has passed. Read pin to see if still set the same
// If it has changed back - assume false alarm
if (digitalRead(_pin) == _last) {
bitClear(_status, 0); // Set busy false
bitSet(_status, 1); // Set new true
return 255;
}
// If this point is reached, event is valid. return event type
else {
bitClear(_status, 0); // Set busy false
bitSet(_status, 1); // Set new true
_last = ((~_last) & 0b00000001); // invert _last
return _last;
}
}