/**************************************************************************************
 ***   FILE: typeid.cpp
 ***   DATE: 03/07/2004
 *** AUTHOR: Daniel Dementiev
 ***   GOAL: This program illustrates the usag eof the typeid() operator.
 ***         To compile from the command line use:
 ***            C:\> cl typeid.cpp /EHsc /GR
 ***         for Visual C++ command line compiler or
 ***            C:\> bcc32 typeid.cpp
 ***         for Borland C++ Builder command line compiler.
 ***         Hierarchy of the classes is:
 ***                         Figure
 ***                           ^
 ***               ----------------------------
 ***               ^                          ^
 ***            Circle                      Rect
 ***                                          ^
 ***                                        Square
 **************************************************************************************/


#include <iostream>
#include <typeinfo>
#include <vector>

using namespace std;

class Figure {
   protected:
      int x, y;
   public:
     Figure() : x(0), y(0) {};
     Figure(int X, int Y) : x(X), y(Y) {};
     virtual ~Figure() {};
     int getX() { return x; };
     int getY() { return y; };
      void MoveTo(int X, int Y) { x=X; y=Y; };
     // virtual methdos - common interface of all Figure children
     virtual int getWidth() = 0;
     virtual int getHeight() = 0;
};

class Circle : public Figure {
private:
   int radius;
public:
   Circle(void) : radius(10) {};
   Circle(int x, int y, int r) : Figure(x, y), radius(r) {};
   int getWidth() { return 2*radius; };
   int getHeight() { return 2*radius; };
};


class Rect : public Figure {
private:
   int width, height;
public:
   Rect(void) : width(10), height(5) {};
   Rect(int x, int y, int w, int h) : Figure(x, y), width(w), height(h) {};
   int getWidth() { return width; };
   int getHeight() { return height; };
};

class Square : public Rect
{
public:
   Square(void) : Rect(0, 0, 5, 5) {};
   Square(int x, int y, int s) : Rect(x, y, s, s) {};
};


void main()
{
   vector<Figure*> figs;
   int i;
   const int w = 600;
   const int h = 400;
   int r, s, rw, rh;

   for(i=0;i<25;i++)
      switch( rand()%4 ){
         case 0:
            r = rand() % 40 + 3;
            figs.push_back( new Circle( rand()%(w-2*r)+r, rand()%(h-2*r)+r, r ) );
            break;
         case 1:
            s = rand() % 60 + 5;
            figs.push_back( new Square( rand()%(w-s)+s/2, rand()%(h-s)+s/2, s ) );
            break;
         case 2:
            rw = rand() % 60 + 5;
            rh = rand() % 30 + 3;
            figs.push_back( new Rect( rand()%(w-rw)+rw/2, rand()%(h-rh)+rh/2, rw, rh ) );
            break;
      }

   for(i=0;i<figs.size();i++)
      cout<<typeid( *figs[i] ).name()<<endl;
}