Add pedal positionChanged() function

Similar to gearChanged() for the shifter, this saves the 'changed' return value from the update function so it can be retrieved later to see if any of the pedal positions have changed since the last call.

Author: dmadison

src/SimRacing.cpp

@@ -311,15 +311,19 @@ void AnalogInput::setCalibration(AnalogInput::Calibration newCal) {
 //#########################################################
 
 Pedals::Pedals(AnalogInput* dataPtr, uint8_t nPedals, uint8_t detectPin)
-	: pedalData(dataPtr), NumPedals(nPedals), detector(detectPin)
+	: 
+	pedalData(dataPtr),
+	NumPedals(nPedals),
+	detector(detectPin),
+	changed(false)
 {}
 
 void Pedals::begin() {
 	update();  // set initial pedal position
 }
 
 bool Pedals::update() {
-	bool changed = false;
+	changed = false;
 
 	detector.poll();
 	if (detector.getState() == DeviceConnection::Connected) {

src/SimRacing.h

@@ -331,6 +331,13 @@ namespace SimRacing {
 		*/
 		int getNumPedals() const { return this->NumPedals; }
 
+		/**
+		* Checks whether the current pedal positions have changed since the last update.
+		*
+		* @return 'true' if position has changed, 'false' otherwise
+		*/
+		bool positionChanged() const { return changed; }
+
 		/**
 		* Calibrate a pedal's min/max values for rescaling.
 		* 
@@ -362,6 +369,7 @@ namespace SimRacing {
 		AnalogInput* pedalData;     ///< pointer to the pedal data
 		const int NumPedals;        ///< number of pedals managed by this class
 		DeviceConnection detector;  ///< detector instance for checking if the pedals are connected
+		bool changed;               ///< whether the pedal position has changed since the previous update
 	};