shape.h

//
// Copyright (c) 2017 by Daniel Saks and Stephen C. Dewhurst.
//
// Permission to use, copy, modify, distribute, and sell this
// software for any purpose is hereby granted without fee, provided
// that the above copyright notice appears in all copies and
// that both that copyright notice and this permission notice
// appear in supporting documentation.
// The authors make no representation about the suitability of this
// software for any purpose. It is provided "as is" without express
// or implied warranty.
//
#ifndef _USERS_RENNIE_TEST_TEMPLATETREES_SHAPE_H
#define _USERS_RENNIE_TEST_TEMPLATETREES_SHAPE_H

class ShapeBase {};

class Rollable {
public:
	virtual ~Rollable() = default;
	virtual void roll() = 0;
};

class Shape : public ShapeBase {
public:
	virtual ~Shape() = default;
	virtual void draw() const = 0;
};

class Circle : public Shape, public Rollable {
public:
    Circle() = default;
	void draw() const override {}
	void roll() override {}
};

class Square : public Shape {
};

class Triangle : public Shape {
public:
    Triangle() = default;
	void draw() const override {}
private:
	int a_{};
};

#endif