// button initialization
EMFButton btn (pin);
EMFButton btn (pin, pinmode);
EMFButton btn (pin, pinmode, normstate);
// reading button state
void tick();                             // obligatory function(reading button state)
// button pressing usage
bool isPressed();                        // returns true if button is pressed
bool isClicked();                        // returns true if button is clicked
bool isReleased();                       // returns true if button is released
bool isHeld();                           // is true with hold timer trigger
bool isHold();                           // returns true if button is still pressed after hold timer timeout
// basic multiclicking
bool hasSingle();                        // returns true if button was clicked once
bool hasDouble();                        // returns true if button was clicked twice
bool hasTriple();                        // returns true if button was clicked three times
// advanced multiclicking and holding
uint8_t hasClicks();                     // returns clicks after click strike is end
uint8_t hasClicksNow();                  // returns clicks during clicking
uint8_t hasClicksWithHeld();             // returns clicks during isHeld
uint8_t hasClicksWithHold();             // returns clicks with isHold
// advanced holding
uint16_t holdInMillis();                 // returns whole press time after releasing (ms)
uint16_t holdingTime();                  // returns press time (ms)
//callbacks
void attach(action, function);           // attaching function for this action
void detach(action);                     // detaching function for this action

//Use these defines BEFORE including the library

// use this if you don't use Arduino framework or if you use alternative of these functions
#define EMFB_SETUP_FUNC(pin, pinmode) pinMode(pin, (pinmode) ? INPUT : INPUT_PULLUP);
#define EMFB_READ_FUNC(pin, pinmode) digitalRead(pin) == (pinmode) ? HIGH : LOW
#define EMFB_MILLIS_FUNC millis()
// timers
#define EMFB_DEB_TIMER 50
#define EMFB_HOLD_TIMER 500
#define EMFB_RELEASE_TIMER 500
// aditional options
#define EMFB_USE_CALLBACKS
#define EMFB_WITHOUT_DEBOUNCE