X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FAIModel%2FAIEscort.cxx;h=2125b6ac478659513301e975e9f0c877ed7ccfc7;hb=38226af24ec01e8f0a20d7fd73ef838a69f6ef25;hp=873ed7174d183f366141d329eb69acd84cf75173;hpb=141186a358d07141eac151c287761eed6d81b68c;p=flightgear.git

diff --git a/src/AIModel/AIEscort.cxx b/src/AIModel/AIEscort.cxx
index 873ed7174..2125b6ac4 100644
--- a/src/AIModel/AIEscort.cxx
+++ b/src/AIModel/AIEscort.cxx
@@ -35,7 +35,6 @@
 #include <Main/viewer.hxx>
 
 #include <Scenery/scenery.hxx>
-#include <Scenery/tilemgr.hxx>
 
 #include "AIEscort.hxx"
 
@@ -230,7 +229,6 @@ bool FGAIEscort::getGroundElev(SGGeod inpos) {
 
 }
 
-
 void FGAIEscort::setParent()
 {
     double lat = _selected_ac->getDoubleValue("position/latitude-deg");
@@ -269,6 +267,22 @@ void FGAIEscort::setParent()
 
 }
 
+void FGAIEscort::calcRangeBearing(double lat, double lon, double lat2, double lon2,
+                                  double &range, double &bearing) const
+{
+    // calculate the bearing and range of the second pos from the first
+    double az2, distance;
+    geo_inverse_wgs_84(lat, lon, lat2, lon2, &bearing, &az2, &distance);
+    range = distance * SG_METER_TO_NM;
+}
+
+double FGAIEscort::calcTrueBearingDeg(double bearing, double heading)
+{
+    double angle = bearing + heading;
+    SG_NORMALIZE_RANGE(angle, 0.0, 360.0);
+    return angle;
+}
+
 SGVec3d FGAIEscort::getCartHitchPosAt(const SGVec3d& _off) const {
     double hdg = _selected_ac->getDoubleValue("orientation/true-heading-deg");
     double pitch = _selected_ac->getDoubleValue("orientation/pitch-deg");