#include <iostream>
using namespace std;

class Data
{
public:
	double m_Opposite;
	double m_Adjacent;
	double m_Hypotenuse;

};

class ITrigo // pure virtual class
{
public:
	virtual void CompAngle(Data input, double& angle1, double& angle2) = 0;
};

class SinCsc : public ITrigo // worker class, realizing ITrigo
{
public: 
	void CompAngle(Data input, double& angle1, double& angle2)
	{
		angle1 = input.m_Opposite / input.m_Hypotenuse;
		angle2 = input.m_Hypotenuse / input.m_Opposite;
	}
};

class Trigo
{
private:
	Data m_Input;
	ITrigo* m_pObject;

public:
	void SetAttributes (Data input)
	{
		m_Input = input;
	}
	void SetTrigoObject (ITrigo* pObject)
	{
		m_pObject = pObject;
	}
	void Compute (double& angle1, double& angle2)
	{
		m_pObject->CompAngle(m_Input, angle1, angle2);
	}

};

int main(){

	Data d;
	Trigo t;

	d.m_Opposite = 4.0; d.m_Adjacent = 3.0, d.m_Hypotenuse = 5.0;

	t.SetAttributes(d);

	ITrigo *pObj = new SinCsc();   
	t.SetTrigoObject(pObj);

	double sine, cosecant;
	t.Compute(sine, cosecant);

	cout << "Sine: " << sine << endl;
	cout << "Cosecant: " << cosecant << endl;

	delete pObj;




	return 0;
}