fix a segmentation fault situation that is exposed at least on IRIX (but not Linux).

[flightgear.git] / src / AIModel / AIBase.hxx

diff --git a/src/AIModel/AIBase.hxx b/src/AIModel/AIBase.hxx
index b9db98c6c889665aa7781cdd2571b894d907eaf9..89c7981528b7d49c0a6b173d5d79db615b092305 100644 (file)
--- a/src/AIModel/AIBase.hxx
+++ b/src/AIModel/AIBase.hxx
@@ -1,4 +1,4 @@
-// FGAIBase - abstract base class for AI objects
+// FGAIBase.hxx - abstract base class for AI objects
 // Written by David Culp, started Nov 2003, based on
 // David Luff's FGAIEntity class.
 // - davidculp2@comcast.net
@@ -27,11 +27,46 @@
 #include <simgear/scene/model/placement.hxx>
 
 #include <Main/fg_props.hxx>
-#include "AIFlightPlan.hxx"
 
 SG_USING_STD(string);
 
 class FGAIManager;
+class FGAIFlightPlan;
+
+
+typedef struct {
+   string callsign;
+
+   // can be aircraft, ship, storm, thermal or ballistic
+   const char* m_type;
+   const char* m_class;
+   const char* path;
+   const char* flightplan;
+
+   FGAIFlightPlan *fp;
+
+   double repeat;             // in seconds
+   double latitude;           // used if no flightplan defined
+   double longitude;          // used if no flightplan defined
+   double altitude;           // used if no flightplan defined
+   double speed;              // used if no flightplan defined
+   double heading;            // used if no flightplan defined
+   double roll;               // used if no flightplan defined
+   double azimuth;            // used by ballistic objects
+   double elevation;          // used by ballistic objects
+   double rudder;             // used by ship objects
+   double strength;           // used by thermal objects
+   double diameter;           // used by thermal objects
+   double eda;                // used by ballistic objects
+   double life;               // life span in seconds
+   double buoyancy;           // acceleration in ft per sec2
+   double wind_from_east;     // in feet per second
+   double wind_from_north;    // in feet per second
+   double cd;                 // coefficient of drag
+   bool wind;                 // if true, model reacts to parent wind
+   double weight;             // in lbs
+} FGAIModelEntity;
+
 
 class FGAIBase {
 
@@ -42,8 +77,9 @@ public:
     virtual void update(double dt);
     inline Point3D GetPos() { return(pos); }
 
-    enum object_type { otNull, otAircraft, otShip, otBallistic,
-                       otRocket, otStorm, otThermal };
+    enum object_type { otNull = 0, otAircraft, otShip, otBallistic,
+                       otRocket, otStorm, otThermal, 
+                       MAX_OBJECTS };  // Needs to be last!!!
 
     virtual bool init();
     virtual void bind();
@@ -57,8 +93,7 @@ public:
     void setLongitude( double longitude );
     void setBank( double bank );
 
-    void setID( int ID );
-    int  getID();
+    void* getID();
     void setDie( bool die );
     bool getDie();
 
@@ -76,6 +111,9 @@ protected:
     double altitude;    // meters above sea level
     double vs;          // vertical speed, feet per minute   
 
+    double ft_per_deg_lon;
+    double ft_per_deg_lat;
+
     // these describe the model's desired state
     double tgt_heading;  // target heading, degrees true
     double tgt_altitude; // target altitude, *feet* above sea level
@@ -86,6 +124,7 @@ protected:
     double tgt_vs;
 
     // these describe radar information for the user
+    bool in_range;       // true if in range of the radar, otherwise false
     double bearing;      // true bearing from user to this model
     double elevation;    // elevation in degrees from user to this model
     double range;        // range from user to this model, nm
@@ -101,13 +140,15 @@ protected:
     ssgBranch * model;     //The 3D model object
     SGModelPlacement aip;
     bool delete_me;
-    int id;
     bool invisible;
     bool no_roll;
+    double life;
     FGAIFlightPlan *fp;
 
     void Transform();
 
+    double UpdateRadar(FGAIManager* manager);
+
     string _type_str;
     object_type _otype;
     int index;
@@ -138,6 +179,11 @@ public:
     double _getY_shift() const;
     double _getRotation() const;
 
+    static const double rho;
+    static const double lbs_to_slugs;
+
+    int _getID() const;
+
     inline double _getRange() { return range; };
 
     static bool _isNight();
@@ -163,6 +209,7 @@ inline void FGAIBase::setAltitude( double altitude_ft ) {
 
 inline void FGAIBase::setBank( double bank ) {
   roll = tgt_roll = bank;
+  no_roll = false;
 }
 
 inline void FGAIBase::setLongitude( double longitude ) {
@@ -175,10 +222,9 @@ inline void FGAIBase::setLatitude ( double latitude ) {
 inline void FGAIBase::setDie( bool die ) { delete_me = die; }
 inline bool FGAIBase::getDie() { return delete_me; }
 
-inline void FGAIBase::setID( int ID ) { id = ID; }
-inline int  FGAIBase::getID() { return id; }
-
 inline FGAIBase::object_type FGAIBase::getType() { return _otype; }
 
-#endif  // _FG_AIBASE_HXX
+inline void* FGAIBase::getID() { return this; }
+
+#endif // _FG_AIBASE_HXX