Update InputManager to record any button hold time
This commit is contained in:
Dave Allie
parent
9b7d94f06e
commit
06b4cf0c71
@ -1,5 +1,4 @@
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#ifndef INPUT_MANAGER_H
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#define INPUT_MANAGER_H
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#pragma once
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#include <Arduino.h>
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@ -8,52 +7,100 @@ class InputManager {
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InputManager();
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void begin();
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uint8_t getState();
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/**
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* Updates the button states. Should be called regularly in the main loop.
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*/
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void update();
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bool isPressed(uint8_t buttonIndex);
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bool wasPressed(uint8_t buttonIndex);
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bool wasReleased(uint8_t buttonIndex);
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/**
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* Returns true if the button was being held at the time of the last #update() call.
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*
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* @param buttonIndex the button indexes
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* @return the button current press state
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*/
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bool isPressed(uint8_t buttonIndex) const;
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/**
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* Returns true if the button went from unpressed to pressed between the last two #update() calls.
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*
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* This differs from #isPressed() in that pressing and holding a button will cause this function
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* to return true after the first #update() call, but false on subsequent calls, whereas #isPressed()
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* will continue to return true.
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*
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* @param buttonIndex
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* @return the button pressed state
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*/
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bool wasPressed(uint8_t buttonIndex) const;
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/**
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* Returns true if any button started being pressed between the last two #update() calls
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*
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* @return true if any button started being pressed between the last two #update() calls
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*/
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bool wasAnyPressed() const;
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/**
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* Returns true if the button went from pressed to unpressed between the last two #update() calls
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*
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* @param buttonIndex the button indexes
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* @return the button release state
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*/
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bool wasReleased(uint8_t buttonIndex) const;
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/**
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* Returns true if any button was released between the last two #update() calls
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*
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* @return true if any button was released between the last two #update() calls
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*/
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bool wasAnyReleased() const;
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/**
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* Returns the time between any button starting to be depressed and all buttons between released
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*
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* @return duration in milliseconds
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*/
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unsigned long getHeldTime() const;
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// Button indices
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static const uint8_t BTN_BACK = 0;
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static const uint8_t BTN_CONFIRM = 1;
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static const uint8_t BTN_LEFT = 2;
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static const uint8_t BTN_RIGHT = 3;
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static const uint8_t BTN_UP = 4;
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static const uint8_t BTN_DOWN = 5;
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static const uint8_t BTN_POWER = 6;
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static constexpr uint8_t BTN_BACK = 0;
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static constexpr uint8_t BTN_CONFIRM = 1;
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static constexpr uint8_t BTN_LEFT = 2;
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static constexpr uint8_t BTN_RIGHT = 3;
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static constexpr uint8_t BTN_UP = 4;
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static constexpr uint8_t BTN_DOWN = 5;
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static constexpr uint8_t BTN_POWER = 6;
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// Pins
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static constexpr int BUTTON_ADC_PIN_1 = 1;
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static constexpr int BUTTON_ADC_PIN_2 = 2;
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static constexpr int POWER_BUTTON_PIN = 3;
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// Power button methods
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bool isPowerButtonPressed();
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bool isPowerButtonPressed() const;
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// Button names
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static const char* getButtonName(uint8_t buttonIndex);
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private:
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int getButtonFromADC(int adcValue, const int thresholds[], int numButtons);
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int getButtonFromADC(int adcValue, const int ranges[], int numButtons);
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uint8_t currentState;
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uint8_t lastState;
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uint8_t pressedEvents;
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uint8_t releasedEvents;
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unsigned long lastDebounceTime;
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unsigned long powerButtonPressStart;
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bool powerButtonWasPressed;
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unsigned long buttonPressStart;
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unsigned long buttonPressFinish;
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static const int BUTTON_ADC_PIN_1 = 1;
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static const int NUM_BUTTONS_1 = 4;
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static const int ADC_THRESHOLDS_1[];
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static constexpr int NUM_BUTTONS_1 = 4;
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static const int ADC_RANGES_1[];
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static const int POWER_BUTTON_PIN = 3;
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static constexpr int NUM_BUTTONS_2 = 2;
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static const int ADC_RANGES_2[];
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static const int BUTTON_ADC_PIN_2 = 2;
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static const int NUM_BUTTONS_2 = 2;
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static const int ADC_THRESHOLDS_2[];
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static const int ADC_TOLERANCE = 200;
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static const int ADC_NO_BUTTON = 3800;
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static const unsigned long DEBOUNCE_DELAY = 5;
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static constexpr int ADC_NO_BUTTON = 3800;
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static constexpr unsigned long DEBOUNCE_DELAY = 5;
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static const char* BUTTON_NAMES[];
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};
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#endif
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@ -1,6 +1,6 @@
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{
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"name": "InputManager",
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"version": "1.0.0",
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"version": "1.1.0",
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"description": "Button inputs",
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"authors": [
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{
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@ -1,7 +1,21 @@
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#include "InputManager.h"
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const int InputManager::ADC_THRESHOLDS_1[] = {3470, 2655, 1470, 3};
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const int InputManager::ADC_THRESHOLDS_2[] = {2205, 3};
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// Recorded ADC values from real devices
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// BACK CONF LEFT RGHT UP DOWN
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// 3597 2760 1530 6 2300 6
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// 3470 2666 1480 6 2222 5
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// 3470 2655 1470 3 2205 3
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// Averages
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// BACK CONF LEFT RGHT UP DOWN
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// 3512 2694 1493 5 2242 5
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// Setup ranges, if ADC value is between value `i` and `i + 1`, button `i` is being pressed
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// These ranges are based on real world values above, and are much more tolerant of different
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// devices than a fixed threshold check
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// These values are calculated by taking the midpoint of the pairs of averaged values above
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const int InputManager::ADC_RANGES_1[] = {ADC_NO_BUTTON, 3100, 2090, 750, INT32_MIN};
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const int InputManager::ADC_RANGES_2[] = {ADC_NO_BUTTON, 1120, INT32_MIN};
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const char* InputManager::BUTTON_NAMES[] = {"Back", "Confirm", "Left", "Right", "Up", "Down", "Power"};
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InputManager::InputManager()
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@ -10,8 +24,8 @@ InputManager::InputManager()
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pressedEvents(0),
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releasedEvents(0),
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lastDebounceTime(0),
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powerButtonPressStart(0),
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powerButtonWasPressed(false) {}
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buttonPressStart(0),
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buttonPressFinish(0) {}
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void InputManager::begin() {
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pinMode(BUTTON_ADC_PIN_1, INPUT);
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@ -20,13 +34,9 @@ void InputManager::begin() {
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analogSetAttenuation(ADC_11db);
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}
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int InputManager::getButtonFromADC(int adcValue, const int thresholds[], int numButtons) {
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if (adcValue > ADC_NO_BUTTON) {
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return -1;
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}
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int InputManager::getButtonFromADC(const int adcValue, const int ranges[], const int numButtons) {
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for (int i = 0; i < numButtons; i++) {
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if (abs(adcValue - thresholds[i]) < ADC_TOLERANCE) {
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if (ranges[i + 1] < adcValue && adcValue <= ranges[i]) {
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return i;
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}
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}
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@ -38,15 +48,15 @@ uint8_t InputManager::getState() {
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uint8_t state = 0;
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// Read GPIO1 buttons
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int adcValue1 = analogRead(BUTTON_ADC_PIN_1);
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int button1 = getButtonFromADC(adcValue1, ADC_THRESHOLDS_1, NUM_BUTTONS_1);
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const int adcValue1 = analogRead(BUTTON_ADC_PIN_1);
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const int button1 = getButtonFromADC(adcValue1, ADC_RANGES_1, NUM_BUTTONS_1);
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if (button1 >= 0) {
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state |= (1 << button1);
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}
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// Read GPIO2 buttons
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int adcValue2 = analogRead(BUTTON_ADC_PIN_2);
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int button2 = getButtonFromADC(adcValue2, ADC_THRESHOLDS_2, NUM_BUTTONS_2);
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const int adcValue2 = analogRead(BUTTON_ADC_PIN_2);
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const int button2 = getButtonFromADC(adcValue2, ADC_RANGES_2, NUM_BUTTONS_2);
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if (button2 >= 0) {
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state |= (1 << (button2 + 4));
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}
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@ -60,8 +70,8 @@ uint8_t InputManager::getState() {
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}
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void InputManager::update() {
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unsigned long currentTime = millis();
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uint8_t state = getState();
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const unsigned long currentTime = millis();
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const uint8_t state = getState();
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// Always clear events first
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pressedEvents = 0;
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@ -78,39 +88,58 @@ void InputManager::update() {
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// Calculate pressed and released events
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pressedEvents = state & ~currentState;
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releasedEvents = currentState & ~state;
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// If pressing buttons and wasn't before, start recording time
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if (pressedEvents > 0 && currentState == 0) {
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buttonPressStart = currentTime;
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}
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// If releasing a button and no other buttons being pressed, record finish time
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if (releasedEvents > 0 && state == 0) {
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buttonPressFinish = currentTime;
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}
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currentState = state;
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// Track power button press timing
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if (pressedEvents & (1 << BTN_POWER)) {
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powerButtonPressStart = currentTime;
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powerButtonWasPressed = true;
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}
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if (releasedEvents & (1 << BTN_POWER)) {
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powerButtonWasPressed = false;
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}
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}
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}
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}
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bool InputManager::isPressed(uint8_t buttonIndex) {
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bool InputManager::isPressed(const uint8_t buttonIndex) const {
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return currentState & (1 << buttonIndex);
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}
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bool InputManager::wasPressed(uint8_t buttonIndex) {
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bool InputManager::wasPressed(const uint8_t buttonIndex) const {
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return pressedEvents & (1 << buttonIndex);
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}
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bool InputManager::wasReleased(uint8_t buttonIndex) {
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bool InputManager::wasAnyPressed() const {
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return pressedEvents > 0;
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}
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bool InputManager::wasReleased(const uint8_t buttonIndex) const {
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return releasedEvents & (1 << buttonIndex);
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}
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const char* InputManager::getButtonName(uint8_t buttonIndex) {
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bool InputManager::wasAnyReleased() const {
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return releasedEvents > 0;
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}
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unsigned long InputManager::getHeldTime() const {
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// Still hold a button
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if (currentState > 0) {
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return millis() - buttonPressStart;
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}
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return buttonPressFinish - buttonPressStart;
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}
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const char* InputManager::getButtonName(const uint8_t buttonIndex) {
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if (buttonIndex <= BTN_POWER) {
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return BUTTON_NAMES[buttonIndex];
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}
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return "Unknown";
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}
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bool InputManager::isPowerButtonPressed() {
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bool InputManager::isPowerButtonPressed() const {
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return isPressed(BTN_POWER);
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}
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