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statecontroller.h
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statecontroller.h
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#ifndef __INC_AA_STATE_CONTROLLER
#define __INC_AA_STATE_CONTROLLER
#include <stdint.h>
#include "states.h"
#include "outputabstract.h"
#include "statusabstract.h"
/**
* State machine and event manager
*/
class StateController
{
public:
/**
* Constructs a state controller with the given peripherals
*
* @param buttonPin Pin connected to a push button, for manual control
* @param statusLed Configured status LED peripheral
* @param lights Configured light strand
*/
StateController(int buttonPin, StatusAbstract *statusLed,
OutputAbstract *lights);
/**
* Get the current system state
*/
States::State getState();
/**
* Process events and check for button input (call in main loop)
*/
void processEvents();
/**
* Mark the system as receiving commands from the linked computer
*/
void markLinked();
private:
typedef unsigned long ms_time_t; ///< Millisecond time type
const ms_time_t MS_BUTTON_HELD_SHORT = 50; ///< Short button press in ms
const ms_time_t MS_BUTTON_HELD_LONG = 500; ///< Long button press in ms
/**
* Gets whether or not the button is pressed
*
* @return True if held, otherwise false
*/
bool buttonHeld();
/**
* Gets how long the button has been held
*
* @return How long the button has been held in ms, or 0 if not held
*/
ms_time_t buttonHeldDuration();
/**
* Performs the actions for when the button is pressed and released
*/
void buttonTriggered();
/**
* Set the system state, applying actions as needed
*
* @param newState The new system state
*/
void setState(States::State newState);
ms_time_t _buttonStartHold = {}; ///< Tracks start time of the button press
bool _buttonActive = false; ///< If button is held
bool _buttonEventTriggered = false; ///< If button event has been run
bool _buttonReleased = true; ///< If button has been released
States::State _currentState = {}; ///< Current system state
bool _setOnce = false; ///< If state has been set at least once
int _buttonPin = {}; ///< Pin button is connected to
StatusAbstract *_statusLed = nullptr; ///< Configured status LED
OutputAbstract *_lights = nullptr; ///< Configured light strand
};
#endif