Create Handbrake positionChanged() function

Author: dmadison

src/SimRacing.cpp

@@ -987,15 +987,18 @@ LogitechShifter::LogitechShifter(uint8_t pinX, uint8_t pinY, uint8_t pinRev, uin
 //#########################################################
 
 Handbrake::Handbrake(uint8_t pinAx, uint8_t detectPin) 
-	: analogAxis(pinAx), detector(detectPin)
+	: 
+	analogAxis(pinAx),
+	detector(detectPin),
+	changed(false)
 {}
 
 void Handbrake::begin() {
 	update();  // set initial handbrake position
 }
 
 bool Handbrake::update() {
-	bool changed = false;
+	changed = false;
 
 	detector.poll();
 	if (detector.getState() == DeviceConnection::Connected) {

src/SimRacing.h

@@ -716,6 +716,13 @@ namespace SimRacing {
 		*/
 		int getPositionRaw() const;
 
+		/**
+		* Checks whether the handbrake's position has changed since the last update.
+		*
+		* @return 'true' if the position has changed, 'false' otherwise
+		*/
+		bool positionChanged() const { return changed; }
+
 		/// @copydoc AnalogInput::setCalibration()
 		void setCalibration(AnalogInput::Calibration newCal);
 
@@ -728,6 +735,7 @@ namespace SimRacing {
 	private:
 		AnalogInput analogAxis;     ///< axis data for the handbrake's position
 		DeviceConnection detector;  ///< detector instance for checking if the handbrake is connected
+		bool changed;               ///< whether the handbrake position has changed since the previous update
 	};