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Код: Выделить всё

#include<iostream.h>
#include<graphics.h>

class Point()
{ 
int x;
int y;
public Point(int _x, int _y)
{
x=_x;
y=_y;

}
public Show()
{
//показать x и y
}
}

class Polygon()
{
Point x;
Point y;
Point w;
Point h;
public Plygon(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4)
{
x.x = x1;
x.y = y1;
y.x = x2;
y.y = y2;
w.x = x3;
w.y = y3;
h.x = x4;
h.y = y4;
}
public Show()
{
x.Show();
y.Show();
w.Show();
h.Show();
}
}

Код: Выделить всё

//---------------------------------------------------------------------------

#include "graphics.h"
#include "iostream.h"
#include "conio.h"

//---------------------------------------------------------------------------
class Point
{
friend Polygon;
protected:
 int x;
 int y;
public:
 Point(int _x, int _y)
 {
  x=_x;
  y=_y;
 };
void Show()
 {
  putpixel(x,y,15);
 };
};

class Polygon
{
protected:
 Point *x;
 Point *y;
 Point *w;
 Point *h;
 public:
 Polygon (int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4)
  {
   x = new Point(x1,y1);
   y = new Point(x2,y2);
   w = new Point(x3,y3);
   h = new Point(x4,y4);
  };
 void Show()
  {
   //x->Show();
   //y->Show();
   //w->Show();
   //h->Show();
   moveto(x->x,x->y);
   lineto(y->x,y->y);
   lineto(w->x,w->y);
   lineto(h->x,h->y);
   lineto(x->x,x->y);
  };
};
//---------------------------------------------------------------------------
int main()
{
 int driver=9; //VGA
 int mode=2; //640x480 16 colors
 initgraph(&driver,&mode,"C:\\misc\\soft\\tc\\bgi\\\0");
 Polygon *p = new Polygon(0,0,10,0,10,10,0,10);
 p->Show();
 getch();
 closegraph();
 return 0;
}
//---------------------------------------------------------------------------

Код: Выделить всё

#include "graphics.h"
#include "iostream.h"
#include "conio.h"

//---------------------------------------------------------------------------
class Point
{
public:
   Point(int x, int y) :
      m_x(x), m_y(y)
   {}
   void Show()
   {
      putpixel(m_x, m_y, 15);
   }
   void MoveTo()
   {
      moveto(m_x, m_y);
   }
   void LineTo()
   {
      lineto(m_x, m_y);
   }

private:
   int m_x;
   int m_y;
};

class Line
{
public:
   Line(const Point& p1, const Point& p2) :
      m_p1(p1), m_p2(p2)
   {}
   void Show()
   {
      m_p1.MoveTo();
      m_p2.LineTo();
   }

private:
   Point m_p1;
   Point m_p2;
};

class Polygon
{
public:
   Polygon(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4) : 
      m_a1(Point(x1, y1), Point(x2, y2)),
      m_a2(Point(x2, y2), Point(x3, y3)),
      m_a3(Point(x3, y3), Point(x4, y4)),
      m_a4(Point(x4, y4), Point(x1, y1))
   {};
   void Show()
   {
      m_a1.Show();
      m_a2.Show();
      m_a3.Show();
      m_a4.Show();
   };

private:
   Line m_a1;
   Line m_a2;
   Line m_a3;
   Line m_a4;
};

//---------------------------------------------------------------------------
int main()
{
   int driver = 9; //VGA
   int mode = 2; //640x480 16 colors
   initgraph(&driver, &mode, "C:\\misc\\soft\\tc\\bgi\\\0");
   Polygon p(0, 0, 10, 0, 10, 10, 0, 10);
   p.Show();
   getch();
   closegraph();
   return 0;
}

Код: Выделить всё

   Point(int x, int y) :
      m_x(x), m_y(y)
   {}

Код: Выделить всё

   Point(int x, int y)
   {m_x=x; m_y=y;};

Код: Выделить всё

class Point
...
private:
   int m_x;
   int m_y;
...