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// Osman Zakir
// 5 / 30 / 2017
// Bjarne Stroustrup: Programming: Principles and Practice Using C++ 2nd Edition
// Chapter 14 Exercise 1
// Exercise Specificaitons:
/**
* Define two classes Smiley and Frowny, which are both derived from class
* Circle and have two eyes and a mouth. Next, derive classes from Smiley
* and Frowny which add an appropriate hat to each.
*/
#include <iostream>
#include "../../Graph.h"
#include "../../Simple_window.h"
class Smiley : public Circle
{
public:
using Circle::Circle; // use Circle's constructors
void draw_lines() const;
};
class Frowny : public Circle
{
public:
using Circle::Circle; // use Circle's constructors
void draw_lines() const;
};
int main()
{
constexpr int win_width = 600, win_height = 400;
constexpr int win_x = 100, win_y = 100;
const Point win_tl{ win_x, win_y };
Simple_window win{ win_tl, win_width, win_height, "Smiley and Frowny" };
constexpr int emoticon_radius = 100;
Smiley smiley{ Point{ win_width / 2 - 150, win_height / 2 }, emoticon_radius };
Frowny frowny{ Point{ win_width / 2 + 150, win_height / 2 }, emoticon_radius };
smiley.set_color(Color::black);
frowny.set_color(Color::black);
win.attach(smiley);
win.attach(frowny);
win.wait_for_button();
}
void Smiley::draw_lines() const
{
// the eyes
fl_arc(point(0).x + radius() / 2,
point(0).y + (radius() / 2) + (radius() / 6.3), radius() / 5, radius() / 5, 0, 360);
fl_arc(point(0).x + radius() * 1.3,
point(0).y + (radius() / 2) + (radius() / 6.3), radius() / 5, radius() / 5, 0, 360);
// draw the mouth
fl_arc(point(0).x + radius() / 1.3,
point(0).y + radius(), radius() / 2, radius() / 2, 240, 300);
// for drawing the "face"
Circle::draw_lines();
}
void Frowny::draw_lines() const
{
// the eyes
fl_arc(point(0).x + radius() / 2,
point(0).y + (radius() / 2) + (radius() / 6.3), radius() / 5, radius() / 5, 0, 360);
fl_arc(point(0).x + radius() * 1.3,
point(0).y + (radius() / 2) + (radius() / 6.3), radius() / 5, radius() / 5, 0, 360);
// draw the mouth
fl_arc(point(0).x + radius() / 1.3,
point(0).y + radius() * 1.5, radius() / 2, radius() / 2, 56, 240);
// for drawing the "face"
Circle::draw_lines();
}
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