Need help with the bolded parts mostly init.

#include

#include "GalaxyTrader.h"

using namespace::std;

//constructor

GalaxyTrader::GalaxyTrader()

{

}

//copy constructor

GalaxyTrader::GalaxyTrader(GalaxyTrader& other)

{

}

//destructor

GalaxyTrader::~GalaxyTrader()

{

}

//method name: init

//parameters: the name of the file to read from

//purpose: initializes the planet array using the information in the given file

// should use the init method of the Planet class

// if the input file contains a planet outside the bounds of the array immediately return false

//input file format:

// position of planet

// name of planet

// Number of: Wolves Steaks Rabbits then Prices of: Wolves Steaks Rabbits Fuel

//example: 2

// Mars

// 4 13 15 100 10 20 8

//returns: false if any planets were going to be placed out of bounds, true otherwise

// You may assume that the file format is correct, you do not need to error check anything except

// Planet position

bool GalaxyTrader::init(const string filename)

{

// open file

ifstream file;

file.open(filename.c_str());

if (!file) {

cout << "Invalid filename";

return false;

}

while (file.)

// read each planet in the file

// read location

int location;

file << location;

// read name

string name;

file << name;

// read data (7 values)

int data[NUM_DATA];

for (int i = 0; i < NUM_DATA; i++;)

{

file << economics[i];

}

// return false if planet location invalid

if ( location > SIZE || location < 0 )

{

return false;

}

// create planet object and place it in planets array

else

{

Planet p;

p.init(name, data);

planets[location] = p;

}

return true;

}

//method name: buy

//parameters: none

//purpose: ask the user which good they want to buy and how many they want to buy

// then this calls the buyFrom method of the planet the ship is on

// finally if the transaction was sucessful the goods purhased are added to the ship's cargo

//valid inputs: w/s/r for goods, any non negative number for quantity

//returns: true if the transaction was successful, false otherwise

bool GalaxyTrader::buy()

{

char good;

int amount;

//ask user for input

cout << "What good do you wish to buy Captain? (w, s, r) ";

cin >> good;

while (good != 'w' && good != 's' && good != 'r')

{

cout << "I don't think this planet is familiar with that good, captain. ";

cout << "What good do you wish to buy Captain? (w, s, r) ";

cin >> good;

}

if (amount <= 0)

{

cout << "We can't buy negative goods Captain, maybe you meant to sell? ";

cout << "How many do you wish to buy Captain? ";

cin >> amount;

}

if

{

switch (good)

{

case 'w':

wolves += amount;

break;

case 's':

steaks += amount;

break;

case 'r':

rabbits += amount;

break;

}

}

return true;

}

//method name: sell

//parameters: none

//purpose: ask the user which good they want to sell and how many they want to buy

// then this calls the sellTo method of the planet the ship is on

// finally if the transaction was sucessful the goods purhased are removed from the ship's cargo

//valid inputs: w/s/r for goods, any non negative number up to the number of the good in the ship's cargo for quantity

//returns: true if the transaction was successful, false otherwise

bool GalaxyTrader::sell()

{

char good;

int amount;

//ask user for input

cout << "What good do you wish to sell Captain? (w, s, r) ";

cin >> good;

while (good != 'w' && good != 's' && good != 'r')

{

cout << "I don't think this planet is familiar with that good, captain. ";

cout << "What good do you wish to sell Captain? (w, s, r) ";

cin >> good;

}

if (amount <= 0)

{

cout << "We can't sell negative goods Captain, maybe you meant to buy? ";

cout << "How many do you wish to sell Captain? ";

cin >> amount;

}

if

{

switch (good)

{

case 'w':

wolves -= amount;

break;

case 's':

steaks -= amount;

break;

case 'r':

rabbits -= amount;

break;

}

}

return true;

}

//method name: refuel

//parameters: none

//purpose: buys as much fuel as possible from the planet the ship is on, at most enough to fill the reserves to MAX_FUEL

//returns: true if any fuel was purchased, false otherwise

bool GalaxyTrader::refuel()

{

return true;

}

//method name: move

//parameters: none

//purpose: immediately returns false if the user has no fuel

// otherwise it asks the user what direction they want to move

// then the ship's position is updated to reflect the move and fuel is decreased by one

//note: if the ship exceeds the limits of the array it should "reapear" on the other side

//valid inputs: l for left, r for right

//returns: true if the ship's position changed, false otherwise

bool GalaxyTrader::move()

{

return true;

}

//method name: print_status

//parameters: none

//purpose: print the coordinates of the ship

// the credits availble

// currentfuel/MAX_FUEL

// and everything in the ships cargo (should say it is empty if it contains nothing)

//returns: none

void GalaxyTrader::print_status() const

{

}

//method name: print_planet

//parameters: none

//purpose: checks to see if the Planet the ship is on is empty

// if it is print a message saying so

// otherwise call the print method of the planet the ship is on

//returns: none

void GalaxyTrader::print_planet() const

{

}

//method name: scan

//parameters: none

//returns: false if the Planet the ship is at is empty, true if it is not

bool GalaxyTrader::scan() const

{

return true;

}

Planet.cpp

#include #include "Planet.h" using namespace::std;

//constructor Planet::Planet() { empty = true; name = "default"; wolves = 0; steaks = 0; rabbits = 0; price_wolves = 0; price_steaks = 0; price_rabbits = 0; price_fuel = 99999; }

//copy constructor Planet::Planet(Planet& other) { empty = other.empty; name = other.name; wolves = other.wolves; steaks = other.steaks; rabbits = other.rabbits; price_wolves = other.price_wolves; price_steaks = other.price_steaks; price_rabbits = other.price_rabbits; }

//destructor Planet::~Planet() { }

//method name: init //parameters: the name of the planet // an array containing the quantities and prices for goods on the Planet //purpose: sets a Planet as none empty and populates it's member variables with the given values //returns: none void Planet::init(const string n, const int data[]) { name = n; wolves = data[NUM_W]; steaks = data[NUM_S]; rabbits = data[NUM_R]; price_wolves = data[PRICE_W]; price_steaks = data[PRICE_S]; price_rabbits = data[PRICE_R]; price_fuel = data[PRICE_F]; empty = false; }

//method name: print //parameters: none //purpose: display all meaningful values the Planet has to the user // in the case that the planet is uninitialized print only a message indicating this //returns: none void Planet::print() const { if(!empty) { cout << "\tWelcome to planet " << name << endl; cout << "\tOur " << wolves << " wolves are going for " << price_wolves << " credits each." << endl; cout << "\tOur " << steaks << " steaks are going for " << price_steaks << " credits each." << endl; cout << "\tOur " << rabbits << " rabbits are going for " << price_rabbits << " credits each." << endl; cout << "\tFuel can be purchased for " << price_fuel << "credits." << endl; } else cout << "This planet is uninhabited "; }

//method name: buyFrom //parameters: the first letter of the good the user wished to buy // the quantity the user wishes to purchase // a reference to the credits the user has //purpose: check to make sure that the offer makes sense // if it does update the number of goods on the planet and the credits the user has //returns: true if the offer made sense, false otherwise bool Planet::buyFrom(const char good, const int amount, int& credits) { bool valid = false; switch(good) { case 'w': if(amount * price_wolves <= credits && amount <= wolves) { wolves -= amount; credits -= amount * price_wolves; valid = true; } break; case 's': if(amount * price_steaks <= credits && amount <= steaks) { steaks -= amount; credits -= amount * price_steaks; valid = true; } break; case 'r': if(amount * price_rabbits <= credits && amount <= rabbits) { rabbits -= amount; credits -= amount * price_rabbits; valid = true; } break; } return valid; }

//method name: sellTo //parameters: the first letter of the good the user wished to buy // the quantity the user wishes to purchase // a reference to the credits the user has //purpose: update the number of goods on the planet and the credits the user has //returns: false if the given good doesn't exist, true otherwise

bool Planet::sellTo(const char good, const int amount, int& credits) { //we are adding the amount user wants to sell to the respective quantities of planet and updating the credits //accordingly

switch (good) {

case 'w':

wolves += amount; credits += amount * price_wolves; valid = true; break;

case 's': steaks += amount; credits += amount * price_steaks; valid = true; break;

case 'r': rabbits += amount; credits += amount * price_rabbits; valid = true; break;

}

return valid; }

//method name: getFuel //parameters: none //returns: the price of fuel on this planet int Planet::getFuel() const { return price_fuel; }

//method name: isEmpty //parameters: none //returns: true if the planet is empty, false otherwise bool Planet::isEmpty() const { return empty; }

//method name: getName //parameters: none //returns: the name of the Planet string Planet::getName() const { return name; }

Planet.h

#include #include using namespace::std;

const int NUM_DATA = 7; // The number of data items stored about each planet

const int NUM_W = 0; // The number of wolves for sale const int NUM_S = 1; // The number of steaks for sale const int NUM_R = 2; // The number of rabbits for sale const int PRICE_W = 3; // The price for a wolf const int PRICE_S = 4; // The price for a steak const int PRICE_R = 5; // The price for a rabbit const int PRICE_F = 6; // The price for fuel

class Planet { public: Planet(); Planet(Planet& other); ~Planet();

void print() const; void init(const string n, const int data[7]);

bool buyFrom(const char good, const int amount, int& credits); // add function prototype for sellTo here int getFuel() const; bool isEmpty() const; string getName() const;

private: string name; bool empty;

int wolves; int steaks; int rabbits;

int price_wolves; int price_steaks; int price_rabbits;

int price_fuel; };