#include "student.h"
#include <string>
#include <iostream>

using namespace std;

void Student::Initialize(string n)
{
	name = n;
	GPA = 0.0;
	num_classes = 0;
	cout << name << " is alive" << endl;
}

Student::Student(int max_speed, string mm, string n)
{
	vehicle = new Car(max_speed, mm);
	Initialize(n);
}

Student::Student(string n)
{
	vehicle = new Car;
	Initialize(n);
}

Student::~Student()
{
	delete vehicle;
	cout << name << " is going away" << endl;
}

double Student::LG2NG(char lg)
{
	switch (toupper(lg)) {
	case 'A' : return 4.0;
	case 'B' : return 3.0;
	case 'C' : return 2.0;
	case 'D' : return 1.0;
	default : return 0.0;
	}
}

void Student::TakeClass()
{
	char lg;

	cout << "What did you get (A-F)? ";
	cin >> lg;

	GPA = (GPA * num_classes + LG2NG(lg)) / ++num_classes;

	cout << endl << "New GPA = " << GPA << " (" << num_classes << ")" << endl;
}

void Student::GoToSchool()
{
	vehicle->Accelerate(60);
	vehicle->Drive();
	vehicle->Decelerate(60);
}