Prepare and implement reinit methods for instruments

[flightgear.git] / src / Instrumentation / tacan.cxx

diff --git a/src/Instrumentation/tacan.cxx b/src/Instrumentation/tacan.cxx
old mode 100755 (executable)
new mode 100644 (file)
index e00ac4f..dfdab58
--- a/src/Instrumentation/tacan.cxx
+++ b/src/Instrumentation/tacan.cxx
@@ -18,7 +18,7 @@
 #include "tacan.hxx"
 
 using std::vector;
-
+using std::string;
 
 /**
  * Adjust the range.
@@ -124,9 +124,18 @@ TACAN::init ()
     _electrical_node = fgGetNode("/systems/electrical/outputs/tacan", true);
 }
 
+void
+TACAN::reinit ()
+{
+    _time_before_search_sec = 0;
+}
+
 void
 TACAN::update (double delta_time_sec)
 {
+    // don't do anything when paused
+    if (delta_time_sec == 0) return;
+
     if (!_serviceable_node->getBoolValue() || !_electrical_node->getBoolValue()) {
         _last_distance_nm = 0;
         _in_range_node->setBoolValue(false);
@@ -237,7 +246,7 @@ TACAN::update (double delta_time_sec)
         }
         _distance_node->setDoubleValue( tmp_dist );
         _speed_node->setDoubleValue(speed_kt);
-        _time_node->setDoubleValue(distance_nm/speed_kt*60.0);
+        _time_node->setDoubleValue(speed_kt > 0 ? (distance_nm/speed_kt*60.0) : 0);
         _bearing_node->setDoubleValue(bearing);
         _x_shift_node->setDoubleValue(x_shift);
         _y_shift_node->setDoubleValue(y_shift);