The most important part is that it fixes possible

[flightgear.git] / src / ATC / AIEntity.hxx

diff --git a/src/ATC/AIEntity.hxx b/src/ATC/AIEntity.hxx
index 0cf5e52cad12e06d7b90c6ca714612b1c0482120..43da25d533f4fc0cff61874ea66d4110489cd509 100644 (file)
--- a/src/ATC/AIEntity.hxx
+++ b/src/ATC/AIEntity.hxx
@@ -47,15 +47,15 @@ public:
        void SetModel(ssgBranch* model);
 
     // Run the internal calculations
-    virtual void Update(double dt);
+    virtual void Update(double dt)=0;
        
     // Send a transmission *TO* the AIEntity.
     // FIXME int code is a hack - eventually this will receive Alexander's coded messages.
-    virtual void RegisterTransmission(int code);
+    virtual void RegisterTransmission(int code)=0;
        
-       inline Point3D GetPos() { return(_pos); }
+       inline const Point3D& GetPos() const { return(_pos); }
        
-       virtual string GetCallsign();
+       virtual const string& GetCallsign()=0;
        
 protected: