customer.h

/*

Programmer: Jennifer Leopold

Date: April 7, 2016

File: customer.h

Purpose: This file contains the definition of the

Customer class.

*/

#ifndef CUSTOMER_H

#define CUSTOMER_H

#include <iostream>

#include <iomanip>

#include <cstdlib>

#include <fstream>

#include "sandwich.h"

using namespace std;

// File of NUM_CUST_NAMES many possible customer names

const char CUST_NAMES_FILE[20] = "customerNames.dat";

const short NUM_CUST_NAMES = 15;

class Customer

{

private:

// limits on initial cash amount

static const int MIN_INIT_CASH = 25;

static const int MAX_INIT_CASH = 75;

// limits on weight

static const int MIN_INIT_WEIGHT = 90;

static const int MAX_INIT_WEIGHT = 250;

static const int MIN_WEIGHT = 0;

// limits on cholesterol amount

static const int MIN_INIT_CHOLESTEROL = 30;

static const int MAX_INIT_CHOLESTEROL = 300;

static const int MIN_CHOLESTEROL = 30;

// constants used in calculation of weight gain when

// sandwich eaten

static const float WT_GAIN_ANIMALS_MULTIPLIER = 0.5;

static const int WT_GAIN_BACON_DIVISOR = 8;

static const int WT_GAIN_PICKLES_DIVISOR = 4;

static const float WT_GAIN_FROM_CHEESE = 1.2;

static const float WT_GAIN_FROM_SAUCE = 2.1;

// constants used in calculation of cholesterol gain when

// sandwich eaten

static const float CHOL_GAIN_BACON_MULTIPLIER = 2.5;

static const int CHOL_GAIN_WEIGHT_MULTIPLIER = 10;

static const float PI = 3.14;

string m_name; // customer's name

float m_cash; // amount of money to spend

float m_weight; // weight (in lbs)

float m_cholesterol; // cholesterol level

bool m_isAlive; // true if alive

public:

// Default constructor for Customer

// Preconditions: None

// Postconditions: m_name has been set to a string chosen

// from the CUST_NAMES_FILE file, m_cash has been set

// to a value between MIN_INIT_CASH..MAX_INIT_CASH, m_weight

// has been set to a value between MIN_INIT_WEIGHT..

// MAX_INIT_WEIGHT, m_cholesterol has been set

// to a value between MIN_INIT_CHOLESTEROL..

// MAX_INIT_CHOLESTEROL, and m_isAlive has been set to true.

Customer();

// Accessor for m_name

// Preconditions: None

// Postconditions: Value of m_name is returned

string getName() const { return(m_name); }

// Accessor for m_cash

// Preconditions: None

// Postconditions: Value of m_cash is returned

float getCash() const { return(m_cash); }

// Accessor for m_weight

// Preconditions: None

// Postconditions: Value of m_weight is returned

float getWeight() const { return(m_weight); }

// Accessor for m_cholesterol

// Preconditions: None

// Postconditions: Value of m_cholesterol is returned

float getCholesterol() const { return(m_cholesterol); }

// Accessor for m_alive

// Preconditions: None

// Postconditions: Value of m_alive is returned

bool getAlive() const { return(m_isAlive); }

// Mutator for m_cash

// Preconditions: cash must be >= 0

// Postconditions: Value of m_cash has been set to cash

void setCash(const float cash)

{

if (cash >= 0)

m_cash = cash;

return;

}

// Mutator for m_weight

// Preconditions: weight must be >= MIN_WEIGHT

// Postconditions: Value of m_weight has been set to weight

void setWeight(const float weight)

{

if (weight >= MIN_WEIGHT)

m_weight = weight;

return;

}

// Mutator for m_cholesterol

// Preconditions: cholesterol must be >= MIN_CHOLESTEROL

// Postconditions: Value of m_cholesterol has been set to

// cholesterol

void setCholesterol(const float cholesterol)

{

if (cholesterol >= MIN_CHOLESTEROL)

m_cholesterol = cholesterol;

return;

}

// Have customer eat a sandwich, thereby changing his/her

// cash amount, cholesterol level, weight, and possibly

// 'alive' status

// Preconditions: None

// Postconditions: Values of m_cash, m_weight, m_cholesterol,

// and (possibly) m_alive will be changed.

void eat(const Sandwich p);

// Overloaded operator for <<

// Preconditions: None

// Postconditions: State of Customer will be output to outs,

// thereby modifying ostream outs

friend ostream& operator <<(ostream& outs,

const Customer& c);

private:

// Choose a name from file CUST_NAMES_FILE

// Preconditions: None

// Postconditions: Returns a string read from

// CUST_NAMES_FILE

string chooseName();

};

#endif