You will write a program that reads a binary file that contains records of creat
ID: 3754910 • Letter: Y
Question
You will write a program that reads a binary file that contains records of creatures. Each record can bestored in a Creature struct. You should present the user with a menu of three options: display a specific
creature, display
all the creatures sorted by name, or quit. If the user chooses to display a specific
creature, you should ask the user which creature to display.
You will be supplied with a starter file PA
2
_
Starter
.cpp. You will need to complete some of the code in
main a
nd write the definitions for the three functions. For sorting, you should use the sort function
found in the algorithm header file. You can read more about this function here:
http://www.cplusplus
.com/articles/NhA0RXSz/
.
Make sure you use good programming style.
Name your file PA
2
_lastName_firstName.cpp, replacing lastName with your actual last name and
firstName with your actual first name.
Submit only the cpp file.
A possible sample run will look
as follows:
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
3
Creature Report
Name: Kobold
Type: Small Humanoid
HP: 4
Armor Class: 15
S
peed: 6
Press any key to continue . . .
COSC 143
7
Programming Assignment
2
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
8
Creature Report
Name: Frost Worm
Type: Huge
Magical Beast
HP: 147
Armor Class: 18
Speed: 6
Press any key to continue . . .
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
15
Inva
lid entry. Try again.
Which creature do you want to view?
Enter 1 to 10:
2
Creature Report
Name: Orc
Type: Medium Humanoid
HP: 5
Armor Class: 13
Speed: 6
Press any key to continue . . .
COSC 143
7
Programming Assignment
2
Menu
1. Display a specific creature
2. Display all creatures
sorted by name
3. Quit
Enter your choice (1, 2, 3):
2
Basili
s
k
Medium Magical Beast
45
16
4
Clay Golem
Large Construct
90
22
4
Ethereal Filcher
Medium Abberation
22
17
8
Frost Worm
Huge Magical Beast
147
18
6
Goblin
Small Humanoid
5
15
6
Harpy
Medium
Monstrous Humanoid
31
13
4
COSC 143
7
Programming Assignment
2
Hobgoblin
Medium Humanoid
6
15
6
Kobold
Small Humanoid
4
15
6
Medusa
Medium Monstrous Humanoid
33
15
6
Orc
Medium Humanoid
5
13
6
Press any key to continue . . .
Menu
1. Display a specific creature
2. Display all
creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
3
Press any key to continue . .
main.cpp file
/****************************** Name Date PA1_Starter.cpp Description ********************************/
// Headers #include <iostream> #include <cstdlib> #include <string> #include <vector> #include <fstream> #include <algorithm> using namespace std;
// Global variables const int CREATURE_NAME_SIZE = 30; // Max length of a creature name const int CREATURE_TYPE_SIZE = 26; // Max length of a creature type const string FILENAME = "creatures.dat"; // Name of file that contains the data
// struct used to create records in file struct Creature { char name[CREATURE_NAME_SIZE]; // Name of the creature char creatureType[CREATURE_TYPE_SIZE]; // Type of creature int hp; // Hit points for creature int armor; // Armor class for creature int speed; // Speed of creature };
// This function returns true if the name of the left creature is less than the name of the right creature // Use this function when running the sort function bool sortByName(const Creature &lhs, const Creature &rhs) { string name1(lhs.name), name2(rhs.name); return name1 < name2; }
// Function declarations // You will need to code the definitions for each of these functions int getCreatureNumber(int numCreatures); void displayCreature(fstream& file, int num); void displaySorted(fstream& file);
int main() { char choice; // choice made by user for menu fstream creatureFile; // file stream for input file int numCreatures; // the number of creatures saved to the file // Open the creatureFile for input and binary (one statement of code)
// Get the number of creatures in the file (two statements of code) // The number of creatures should be assigned to numCreatures
do { cout << "Menu" << endl; cout << "1. Display a specific creature "; cout << "2. Display all creatures sorted by name "; cout << "3. Quit "; cout << "Enter your choice (1, 2, 3): "; cin >> choice;
while (cin.get() != ' ');
switch (choice) { case '1': // Display a specific creature displayCreature(creatureFile, getCreatureNumber(numCreatures)); break;
case '2': // Display all the creatures in order displaySorted(creatureFile); break;
case '3': // Quit break;
default: cout << "Invalid option. "; break; }
if (choice != '3') { system("PAUSE"); system("CLS"); }
} while (choice != '3');
creatureFile.close(); // Make sure we place the end message on a new line cout << endl;
// The following is system dependent. It will only work on Windows system("PAUSE");
/* // A non-system dependent method is below cout << "Press any key to continue"; cin.get(); */ return 0; }
/******************************************************************* getCreatureNumber gets and returns the record number from the file that the user would like to be displayed PARAM: numCreatures should be the value of the total number of records (creatures) in the file PRE: numCreatures contains a value that is equal to the number of records in the file POST: A value between 1 and numCreatures is returned as selected by the user NOTE: Do not allow a value less than 1 or greater than numCreatures to be returned ********************************************************************/ int getCreatureNumber(int numCreatures) {
}
/******************************************************************* displayCreature displays record number num from file PARAM: file is a fstream that should be open for input and binary num contains the record number that is to be read in file PRE: file is a fstream that is open for input and binary num is a value between 1 and the number of records in file POST: The record number num is displayed to the monitor ********************************************************************/ void displayCreature(fstream& file, int num) {
}
/******************************************************************* displaySorted should read file into a vector. It should then sort the vector by the name of the creature. Last it should display the vector PARAM: file is a fstream that should be open for input and binary PRE: file is open for input and binary POST: Each record is displayed sorted by the name of the creature ********************************************************************/ void displaySorted(fstream& file) {
}
You will write a program that reads a binary file that contains records of creatures. Each record can be
stored in a Creature struct. You should present the user with a menu of three options: display a specific
creature, display
all the creatures sorted by name, or quit. If the user chooses to display a specific
creature, you should ask the user which creature to display.
You will be supplied with a starter file PA
2
_
Starter
.cpp. You will need to complete some of the code in
main a
nd write the definitions for the three functions. For sorting, you should use the sort function
found in the algorithm header file. You can read more about this function here:
http://www.cplusplus
.com/articles/NhA0RXSz/
.
Make sure you use good programming style.
Name your file PA
2
_lastName_firstName.cpp, replacing lastName with your actual last name and
firstName with your actual first name.
Submit only the cpp file.
A possible sample run will look
as follows:
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
3
Creature Report
Name: Kobold
Type: Small Humanoid
HP: 4
Armor Class: 15
S
peed: 6
Press any key to continue . . .
COSC 143
7
Programming Assignment
2
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
8
Creature Report
Name: Frost Worm
Type: Huge
Magical Beast
HP: 147
Armor Class: 18
Speed: 6
Press any key to continue . . .
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
15
Inva
lid entry. Try again.
Which creature do you want to view?
Enter 1 to 10:
2
Creature Report
Name: Orc
Type: Medium Humanoid
HP: 5
Armor Class: 13
Speed: 6
Press any key to continue . . .
COSC 143
7
Programming Assignment
2
Menu
1. Display a specific creature
2. Display all creatures
sorted by name
3. Quit
Enter your choice (1, 2, 3):
2
Basili
s
k
Medium Magical Beast
45
16
4
Clay Golem
Large Construct
90
22
4
Ethereal Filcher
Medium Abberation
22
17
8
Frost Worm
Huge Magical Beast
147
18
6
Goblin
Small Humanoid
5
15
6
Harpy
Medium
Monstrous Humanoid
31
13
4
COSC 143
7
Programming Assignment
2
Hobgoblin
Medium Humanoid
6
15
6
Kobold
Small Humanoid
4
15
6
Medusa
Medium Monstrous Humanoid
33
15
6
Orc
Medium Humanoid
5
13
6
Press any key to continue . . .
Menu
1. Display a specific creature
2. Display all
creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
3
Press any key to continue . .
main.cpp file
/****************************** Name Date PA1_Starter.cpp Description ********************************/
// Headers #include <iostream> #include <cstdlib> #include <string> #include <vector> #include <fstream> #include <algorithm> using namespace std;
// Global variables const int CREATURE_NAME_SIZE = 30; // Max length of a creature name const int CREATURE_TYPE_SIZE = 26; // Max length of a creature type const string FILENAME = "creatures.dat"; // Name of file that contains the data
// struct used to create records in file struct Creature { char name[CREATURE_NAME_SIZE]; // Name of the creature char creatureType[CREATURE_TYPE_SIZE]; // Type of creature int hp; // Hit points for creature int armor; // Armor class for creature int speed; // Speed of creature };
// This function returns true if the name of the left creature is less than the name of the right creature // Use this function when running the sort function bool sortByName(const Creature &lhs, const Creature &rhs) { string name1(lhs.name), name2(rhs.name); return name1 < name2; }
// Function declarations // You will need to code the definitions for each of these functions int getCreatureNumber(int numCreatures); void displayCreature(fstream& file, int num); void displaySorted(fstream& file);
int main() { char choice; // choice made by user for menu fstream creatureFile; // file stream for input file int numCreatures; // the number of creatures saved to the file // Open the creatureFile for input and binary (one statement of code)
// Get the number of creatures in the file (two statements of code) // The number of creatures should be assigned to numCreatures
do { cout << "Menu" << endl; cout << "1. Display a specific creature "; cout << "2. Display all creatures sorted by name "; cout << "3. Quit "; cout << "Enter your choice (1, 2, 3): "; cin >> choice;
while (cin.get() != ' ');
switch (choice) { case '1': // Display a specific creature displayCreature(creatureFile, getCreatureNumber(numCreatures)); break;
case '2': // Display all the creatures in order displaySorted(creatureFile); break;
case '3': // Quit break;
default: cout << "Invalid option. "; break; }
if (choice != '3') { system("PAUSE"); system("CLS"); }
} while (choice != '3');
creatureFile.close(); // Make sure we place the end message on a new line cout << endl;
// The following is system dependent. It will only work on Windows system("PAUSE");
/* // A non-system dependent method is below cout << "Press any key to continue"; cin.get(); */ return 0; }
/******************************************************************* getCreatureNumber gets and returns the record number from the file that the user would like to be displayed PARAM: numCreatures should be the value of the total number of records (creatures) in the file PRE: numCreatures contains a value that is equal to the number of records in the file POST: A value between 1 and numCreatures is returned as selected by the user NOTE: Do not allow a value less than 1 or greater than numCreatures to be returned ********************************************************************/ int getCreatureNumber(int numCreatures) {
}
/******************************************************************* displayCreature displays record number num from file PARAM: file is a fstream that should be open for input and binary num contains the record number that is to be read in file PRE: file is a fstream that is open for input and binary num is a value between 1 and the number of records in file POST: The record number num is displayed to the monitor ********************************************************************/ void displayCreature(fstream& file, int num) {
}
/******************************************************************* displaySorted should read file into a vector. It should then sort the vector by the name of the creature. Last it should display the vector PARAM: file is a fstream that should be open for input and binary PRE: file is open for input and binary POST: Each record is displayed sorted by the name of the creature ********************************************************************/ void displaySorted(fstream& file) {
}
You will write a program that reads a binary file that contains records of creatures. Each record can be
stored in a Creature struct. You should present the user with a menu of three options: display a specific
creature, display
all the creatures sorted by name, or quit. If the user chooses to display a specific
creature, you should ask the user which creature to display.
You will be supplied with a starter file PA
2
_
Starter
.cpp. You will need to complete some of the code in
main a
nd write the definitions for the three functions. For sorting, you should use the sort function
found in the algorithm header file. You can read more about this function here:
http://www.cplusplus
.com/articles/NhA0RXSz/
.
Make sure you use good programming style.
Name your file PA
2
_lastName_firstName.cpp, replacing lastName with your actual last name and
firstName with your actual first name.
Submit only the cpp file.
A possible sample run will look
as follows:
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
3
Creature Report
Name: Kobold
Type: Small Humanoid
HP: 4
Armor Class: 15
S
peed: 6
Press any key to continue . . .
COSC 143
7
Programming Assignment
2
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
8
Creature Report
Name: Frost Worm
Type: Huge
Magical Beast
HP: 147
Armor Class: 18
Speed: 6
Press any key to continue . . .
Menu
1. Display a specific creature
2. Display all creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
1
Which creature do you want to view?
Enter 1 to 10:
15
Inva
lid entry. Try again.
Which creature do you want to view?
Enter 1 to 10:
2
Creature Report
Name: Orc
Type: Medium Humanoid
HP: 5
Armor Class: 13
Speed: 6
Press any key to continue . . .
COSC 143
7
Programming Assignment
2
Menu
1. Display a specific creature
2. Display all creatures
sorted by name
3. Quit
Enter your choice (1, 2, 3):
2
Basili
s
k
Medium Magical Beast
45
16
4
Clay Golem
Large Construct
90
22
4
Ethereal Filcher
Medium Abberation
22
17
8
Frost Worm
Huge Magical Beast
147
18
6
Goblin
Small Humanoid
5
15
6
Harpy
Medium
Monstrous Humanoid
31
13
4
COSC 143
7
Programming Assignment
2
Hobgoblin
Medium Humanoid
6
15
6
Kobold
Small Humanoid
4
15
6
Medusa
Medium Monstrous Humanoid
33
15
6
Orc
Medium Humanoid
5
13
6
Press any key to continue . . .
Menu
1. Display a specific creature
2. Display all
creatures sorted by name
3. Quit
Enter your choice (1, 2, 3):
3
Press any key to continue . .
main.cpp file
/****************************** Name Date PA1_Starter.cpp Description ********************************/
// Headers #include <iostream> #include <cstdlib> #include <string> #include <vector> #include <fstream> #include <algorithm> using namespace std;
// Global variables const int CREATURE_NAME_SIZE = 30; // Max length of a creature name const int CREATURE_TYPE_SIZE = 26; // Max length of a creature type const string FILENAME = "creatures.dat"; // Name of file that contains the data
// struct used to create records in file struct Creature { char name[CREATURE_NAME_SIZE]; // Name of the creature char creatureType[CREATURE_TYPE_SIZE]; // Type of creature int hp; // Hit points for creature int armor; // Armor class for creature int speed; // Speed of creature };
// This function returns true if the name of the left creature is less than the name of the right creature // Use this function when running the sort function bool sortByName(const Creature &lhs, const Creature &rhs) { string name1(lhs.name), name2(rhs.name); return name1 < name2; }
// Function declarations // You will need to code the definitions for each of these functions int getCreatureNumber(int numCreatures); void displayCreature(fstream& file, int num); void displaySorted(fstream& file);
int main() { char choice; // choice made by user for menu fstream creatureFile; // file stream for input file int numCreatures; // the number of creatures saved to the file // Open the creatureFile for input and binary (one statement of code)
// Get the number of creatures in the file (two statements of code) // The number of creatures should be assigned to numCreatures
do { cout << "Menu" << endl; cout << "1. Display a specific creature "; cout << "2. Display all creatures sorted by name "; cout << "3. Quit "; cout << "Enter your choice (1, 2, 3): "; cin >> choice;
while (cin.get() != ' ');
switch (choice) { case '1': // Display a specific creature displayCreature(creatureFile, getCreatureNumber(numCreatures)); break;
case '2': // Display all the creatures in order displaySorted(creatureFile); break;
case '3': // Quit break;
default: cout << "Invalid option. "; break; }
if (choice != '3') { system("PAUSE"); system("CLS"); }
} while (choice != '3');
creatureFile.close(); // Make sure we place the end message on a new line cout << endl;
// The following is system dependent. It will only work on Windows system("PAUSE");
/* // A non-system dependent method is below cout << "Press any key to continue"; cin.get(); */ return 0; }
/******************************************************************* getCreatureNumber gets and returns the record number from the file that the user would like to be displayed PARAM: numCreatures should be the value of the total number of records (creatures) in the file PRE: numCreatures contains a value that is equal to the number of records in the file POST: A value between 1 and numCreatures is returned as selected by the user NOTE: Do not allow a value less than 1 or greater than numCreatures to be returned ********************************************************************/ int getCreatureNumber(int numCreatures) {
}
/******************************************************************* displayCreature displays record number num from file PARAM: file is a fstream that should be open for input and binary num contains the record number that is to be read in file PRE: file is a fstream that is open for input and binary num is a value between 1 and the number of records in file POST: The record number num is displayed to the monitor ********************************************************************/ void displayCreature(fstream& file, int num) {
}
/******************************************************************* displaySorted should read file into a vector. It should then sort the vector by the name of the creature. Last it should display the vector PARAM: file is a fstream that should be open for input and binary PRE: file is open for input and binary POST: Each record is displayed sorted by the name of the creature ********************************************************************/ void displaySorted(fstream& file) {
}
Explanation / Answer
Here is the code
Kobold
Small Humanoid
4
15
6
Harpy
Medium Monstrous Humanoid
31
13
4
Medusa
Medium Monstrous Humanoid
33
15
6
Frost Worm
Huge Magical Beast
147
18
6
Goblin
Small Humanoid
5
15
6
Orc
Medium Humanoid
5
13
6
Basili s k
Medium Magical Beast
45
16
4
Hobgoblin
Medium Humanoid
6
15
6
Clay Golem
Large Construct
90
22
4
Ethereal Filcher
Medium Abberation
22
17
8
_____________
#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstdlib>
using namespace std;
struct Creature
{
string name;
string type;
int hp;
int armor;
int speed;
};
int main() {
int size=0;
string name;
string type;
string hp, armor,speed;
//defines an input stream for the data file
ifstream dataIn;
//Opening the input file
dataIn.open("creaturesInfo.txt");
//checking whether the file name is valid or not
if(dataIn.fail())
{
cout<<"** File Not Found **";
return 1;
}
else
{
while(getline(dataIn,name))
{
getline(dataIn,type);
getline(dataIn, hp);
// hp = atoi(price.c_str());
getline(dataIn, armor);
// armor = atoi(price.c_str());
getline(dataIn, speed);
// speed = atoi(price.c_str());
size++;
cout<<size<<endl;
}
cout<<size<<endl;
dataIn.close();
struct Creature c[size];
//Opening the input file
dataIn.open("creaturesInfo.txt");
for(int i=0;i<size;i++)
{
getline(dataIn,name);
getline(dataIn,type);
getline(dataIn,hp);
getline(dataIn,armor);
getline(dataIn,speed);
c[i].name=name;
c[i].type=type;
c[i].hp=atoi(hp.c_str());
c[i].armor=atoi(armor.c_str());
c[i].speed=atoi(speed.c_str());
}
dataIn.close();
for(int i=0;i<size;i++)
{
cout<<c[i].name<<endl;
cout<<c[i].type<<endl;
cout<<c[i].hp<<endl;
}
}
return 0;
}
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