Added a Clickable property for ssc objects, similar to request in feature

tracker item 1704255.

src/celengine/body.cpp

@@ -48,6 +48,8 @@ Body::Body(PlanetarySystem* _system) :
     locations(NULL),
     locationsComputed(false),
     referenceMarks(0),
+    clickable(1),
+    visibleAsPoint(1),
     frameRefStar(NULL)
 {
     system = _system;
@@ -827,6 +829,17 @@ Body::getFrameReferenceStar() const
 }
 
 
+void Body::setClickable(bool _clickable)
+{
+    clickable = _clickable ? 1 : 0;
+}
+
+
+void Body::setVisibleAsPoint(bool _visibleAsPoint)
+{
+    visibleAsPoint = _visibleAsPoint ? 1 : 0;
+}
+
 
 /**** Implementation of PlanetarySystem ****/
 
@@ -997,3 +1010,4 @@ std::vector<std::string> PlanetarySystem::getCompletion(const std::string& _name
 
     return completion;
 }
+

src/celengine/body.h

@@ -215,6 +215,11 @@ class Body
     void addLocation(Location*);
     Location* findLocation(const std::string&, bool i18n = false) const;
     void computeLocations();
+    
+    bool isClickable() const { return clickable == 1; }
+    void setClickable(bool _clickable);
+    bool isVisibleAsPoint() const { return visibleAsPoint == 1; }
+    void setVisibleAsPoint(bool _visibleAsPoint);
 
     enum
     {
@@ -273,6 +278,8 @@ class Body
     mutable bool locationsComputed;
 
     uint32 referenceMarks;
+    unsigned int clickable : 1;
+    unsigned int visibleAsPoint : 1;
 
     // Only necessary until we switch to using frame hierarchy
     Star* frameRefStar;

src/celengine/solarsys.cpp

@@ -354,7 +354,7 @@ static Body* CreatePlanet(const string& name,
         return NULL;
     }
 
-    double radius = (double)body->getRadius();
+    double radius = (double) body->getRadius();
     planetData->getNumber("Radius", radius);
     body->setRadius((float) radius);
 
@@ -388,7 +388,7 @@ static Body* CreatePlanet(const string& name,
         }
         else
         {
-            if(radius < 1000.0)
+            if (radius < 1000.0)
                 classification = Body::Asteroid;
             else
                 classification = Body::Planet;
@@ -597,6 +597,12 @@ static Body* CreatePlanet(const string& name,
             }
         }
     }
+    
+    bool clickable = true;
+    if (planetData->getBoolean("Clickable", clickable))
+    {
+        body->setClickable(clickable);
+    }
 
     return body;
 }

src/celengine/universe.cpp

@@ -317,7 +317,7 @@ static bool ApproxPlanetPickTraversal(Body* body, void* info)
     PlanetPickInfo* pickInfo = (PlanetPickInfo*) info;
 
     // Reject invisible bodies and bodies that don't exist at the current time
-    if (body->getClassification() == Body::Invisible || !body->extant(pickInfo->jd))
+    if (body->getClassification() == Body::Invisible || !body->extant(pickInfo->jd) || !body->isClickable())
         return true;
 
     Point3d bpos = body->getHeliocentricPosition(pickInfo->jd);
@@ -363,6 +363,7 @@ static bool ExactPlanetPickTraversal(Body* body, void* info)
     // Test for intersection with the bounding sphere
     if (body->getClassification() != Body::Invisible &&
         body->extant(pickInfo->jd) &&
+        body->isClickable() &&
         testIntersection(pickInfo->pickRay, Sphered(bpos, radius), distance))
     {
         if (body->getModel() == InvalidResource)