Circle.h

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// Circle.h: interface for the Circle class.
//

#ifndef CIRCLE_H
#define CIRCLE_H

#include "PhysicalObject.h"
#include "Border.h"

class Simulator;

class Circle : public PhysicalObject {

public:
   Circle(real R, real x = 0, real y = 0, std::string label="", 
      int nSensors=0, real sensorsStartAngle=0, real saturationForce=0.5,
      Color outlineColor = GUI::colorBlack, Color fillColor = GUI::colorTransparent);

   virtual ~Circle();
   
   real R;

   void setRadius (real R);
   
   virtual void computeMass(real density = ThyrixParameters::defaultDensity);
   
   virtual void computeInertia();

   virtual int isCircle()                          { return 1; }
   
  virtual bool detectContacts(PhysicalObject* object, GlobalContactInfoVector* contacts) { 
      return object->detectContacts(this, contacts);
  }

   virtual bool detectContacts(Border* border, GlobalContactInfoVector* contacts);

   virtual bool detectContacts(Circle* circle,  GlobalContactInfoVector* contacts);

   virtual bool detectMouseContact(const Vector2& rMouse, Vector2& p, PhysicalObject*& object);

   virtual void computeBox(){;
      real RE=R+ThyrixParameters::halfEpsilonContact;
      boxMin=r; boxMin-=RE;
      boxMax=r; boxMax+=RE;
   }

   real sensorsStartAngle;

   int getISensor(Vector2& p);

   virtual void setSensor(ContactInfo* contact);

   virtual void draw(GUI *gui);

   void drawSensors(GUI *gui);
};

#endif //CIRCLE_H

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