83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
#pragma once
|
|
|
|
class Bounce {
|
|
public:
|
|
void attach(int pin, PinMode buttonPinMode) {
|
|
m_pin = pin;
|
|
pinMode(m_pin, buttonPinMode);
|
|
Log.info("Attaching a button to %d", pin);
|
|
}
|
|
|
|
void update() {
|
|
int readResult = digitalRead(m_pin);
|
|
if (m_state == Ready) {
|
|
if (readResult == HIGH) {
|
|
m_state = Started;
|
|
m_downStart = millis();
|
|
Log.info("Button %d is started!", m_pin);
|
|
}
|
|
} else if (m_state == Started && millis() - m_downStart >= m_interval) {
|
|
if (readResult == HIGH) {
|
|
m_state = Confirmed;
|
|
Log.info("Button %d is CONFIRMED!", m_pin);
|
|
} else {
|
|
m_state = Ready;
|
|
Log.info("Button %d bounced back to ready!", m_pin);
|
|
}
|
|
} else if (m_state == Confirmed || m_state == Held) {
|
|
if (readResult == LOW) {
|
|
m_state = Ready;
|
|
Log.info("Button %d is released and back to ready!", m_pin);
|
|
} else if (m_state == Confirmed) {
|
|
m_state = Held;
|
|
Log.info("Button %d is being held down!", m_pin);
|
|
}
|
|
}
|
|
}
|
|
|
|
void interval(uint8_t v) {
|
|
m_interval = v;
|
|
}
|
|
|
|
bool fell() const {
|
|
return m_state == Confirmed;
|
|
}
|
|
|
|
private:
|
|
enum State {
|
|
Ready,
|
|
Started,
|
|
Confirmed,
|
|
Held
|
|
};
|
|
|
|
State m_state = Ready;
|
|
unsigned int m_pin = 0;
|
|
unsigned int m_downStart = 0;
|
|
unsigned int m_interval = 10;
|
|
};
|
|
|
|
class Buttons: public InputSource {
|
|
public:
|
|
void onStart() override {
|
|
for(int i = 0; i < 3; i++) {
|
|
m_buttons[i].attach(2 + i, INPUT_PULLDOWN);
|
|
m_buttons[i].interval(15);
|
|
}
|
|
}
|
|
|
|
InputEvent read() override {
|
|
for(int i = 0; i < 3; i++) {
|
|
m_buttons[i].update();
|
|
if (m_buttons[i].fell()) {
|
|
return InputEvent{m_buttonMap[i]};
|
|
}
|
|
}
|
|
return InputEvent{};
|
|
}
|
|
|
|
private:
|
|
Bounce m_buttons[3];
|
|
InputEvent::Intent m_buttonMap[3] = {InputEvent::PowerToggle, InputEvent::NextPattern, InputEvent::UserInput};
|
|
};
|