improve function definition

src/main/navigation/navigation.c

@@ -3062,8 +3062,8 @@ bool isLastMissionWaypoint(void)
             (posControl.waypointList[posControl.activeWaypointIndex].flag == NAV_WP_FLAG_LAST));
 }
 
-/* Checks if approaching hold position requiring fixed wing circling loiter */
-bool isApproachingHoldPosition(void)
+/* Checks if Nav hold position is active */
+bool isNavHoldPositionActive(void)
 {
     if (FLIGHT_MODE(NAV_WP_MODE)) {     // WP mode last WP hold and Timed hold positions
         return isLastMissionWaypoint() || NAV_Status.state == MW_NAV_STATE_HOLD_TIMED;

src/main/navigation/navigation_fixedwing.c

@@ -277,7 +277,7 @@ static void calculateVirtualPositionTarget_FW(float trackingPeriod)
 
     // If angular visibility of a waypoint is less than 30deg, don't calculate circular loiter, go straight to the target
     #define TAN_15DEG    0.26795f
-    bool needToCalculateCircularLoiter = isApproachingHoldPosition() &&
+    bool needToCalculateCircularLoiter = isNavHoldPositionActive() &&
                                             (distanceToActualTarget <= (navLoiterRadius / TAN_15DEG)) &&
                                             (distanceToActualTarget > 50.0f);
 

src/main/navigation/navigation_multicopter.c

@@ -446,7 +446,7 @@ static void updatePositionVelocityController_MC(const float maxSpeed)
      */
     if (
         (navGetCurrentStateFlags() & NAV_AUTO_WP &&
-        !isApproachingHoldPosition() &&
+        !isNavHoldPositionActive() &&
         newVelTotal < maxSpeed &&
         !navConfig()->mc.slowDownForTurning
         ) || newVelTotal > maxSpeed

src/main/navigation/navigation_private.h

@@ -418,7 +418,7 @@ void updateClimbRateToAltitudeController(float desiredClimbRate, climbRateToAlti
 
 bool isWaypointReached(const navWaypointPosition_t * waypoint, const bool isWaypointHome);
 bool isWaypointMissed(const navWaypointPosition_t * waypoint);
-bool isApproachingHoldPosition(void);
+bool isNavHoldPositionActive(void);
 bool isLastMissionWaypoint(void);
 float getActiveWaypointSpeed(void);