X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FFDM%2FMagicCarpet.cxx;h=8450c45b37380de66d4b26615e8679a728f5edd9;hb=01f846feb21b457fe6cb59871f012cf9ad8d1828;hp=58bf6ec31990f815a3483f116e0ef4cd537abc51;hpb=aabdd355f014ddefeee05c4f495ead1b47c1d18d;p=flightgear.git

diff --git a/src/FDM/MagicCarpet.cxx b/src/FDM/MagicCarpet.cxx
index 58bf6ec31..8450c45b3 100644
--- a/src/FDM/MagicCarpet.cxx
+++ b/src/FDM/MagicCarpet.cxx
@@ -33,7 +33,7 @@
 
 
 FGMagicCarpet::FGMagicCarpet( double dt ) {
-    set_delta_t( dt );
+//     set_delta_t( dt );
 }
 
 
@@ -49,13 +49,22 @@ void FGMagicCarpet::init() {
 
 
 // Run an iteration of the EOM (equations of motion)
-void FGMagicCarpet::update( int multiloop ) {
+void FGMagicCarpet::update( double dt ) {
     // cout << "FGLaRCsim::update()" << endl;
 
-    double time_step = get_delta_t() * multiloop;
+    if (is_suspended())
+      return;
+
+    int multiloop = _calc_multiloop(dt);
+
+    double time_step = dt;
 
     // speed and distance traveled
     double speed = globals->get_controls()->get_throttle( 0 ) * 2000; // meters/sec
+    if ( globals->get_controls()->get_brake( 0 ) ) {
+        speed = -speed;
+    }
+
     double dist = speed * time_step;
     double kts = speed * SG_METER_TO_NM * 3600.0;
     _set_V_equiv_kts( kts );
@@ -73,7 +82,7 @@ void FGMagicCarpet::update( int multiloop ) {
 
     // update (lon/lat) position
     double lat2, lon2, az2;
-    if ( speed > SG_EPSILON ) {
+    if ( fabs( speed ) > SG_EPSILON ) {
 	geo_direct_wgs_84 ( get_Altitude(),
 			    get_Latitude() * SGD_RADIANS_TO_DEGREES,
 			    get_Longitude() * SGD_RADIANS_TO_DEGREES,