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// include directives- we have a file that we read in from, so we need fstream
#include <iostream>
#include <fstream>
#include <cstdlib>
using namespace std;
// define some global constants to simplify the program; these will be used in the seating
// chart array and loops
const char FULL = '*';
const char OPEN = '#';
const int ROWS = 15;
const int SEATS = 30;
// class definition- need private variables to store changing data and public member
// functions to manipulate and display data- simplifies program
class Theater
{
public:
void buytickets();
void todayprofit();
void todaysales();
void rowshow();
void seatshow();
void seatingchart();
void readprice(char& seats, ifstream& fin);
void filltheater();
void initialize();
int ticketsSold;
void initializerc();
private:
int rowcount;
int seatnum;
char seats[ROWS][SEATS];
double prices[ROWS];
double profit;
double cost;
int seatsavail[15];
int rc;
};
// main function body
int main()
{
char seats;
ifstream fin;
int rc = ROWS;
// call to initialize variables, fill seating chart, and read in the row prices from
// the file containing the price array
Theater seatnow;
seatnow.filltheater();
seatnow.initialize();
seatnow.readprice(seats, fin);
seatnow.initializerc();
// switch statement makes the main menu so that the user can select their action
// from a variety of options
int choice;
do
{
// explanation of options
cout << "Hello, and welcome to our movie theater!\n"
<< "Press 1 to purchase tickets.\n"
<< "Press 2 to display the total dollar value of all tickets sold.\n"
<< "Press 3 to display the total number of tickets sold.\n"
<< "Press 4 to display the number of seats available in each row.\n"
<< "Press 5 to display the number of seats available in the theater.\n"
<< "Press 6 to display the current seating chart.\n"
<< "Press 7 to exit this program." << endl;
cin >> choice;
// switch statement, each option calls a function that is defined below int main()
// total of 6 function calls in this section
// contains a default in case they enter something invalid
switch(choice)
{
case 1:
seatnow.buytickets();
break;
case 2:
seatnow.todayprofit();
break;
case 3:
seatnow.todaysales();
break;
case 4:
seatnow.rowshow();
break;
case 5:
seatnow.seatshow();
break;
case 6:
seatnow.seatingchart();
break;
case 7:
cout << "Thank you and please come again!" << endl;
break;
default:
cout << "That is not a valid choice!!\n"
<< "Choose again." << endl;
}
} while (choice != 7);
return 0;
}
// function definitions
void Theater::buytickets()
{
// initialize variables to zero to essentially reset the option to buy seats
int tickcount(0), rowcount(0), seatnum(0), sold(0);
int seatsavail[ROWS];
// explantion of what will happen if something invalid is answered
// ask how many tickets will be purchased
cout << "If a nonexistant seat is entered, your total will be $0.00." << endl;
cout << "In that case, please retry." << endl;
cout << "How many tickets would you like to purchase?" << endl;
cin >> tickcount;
// beginning of a do-while loop--> asks for seat information as input, checks to see
// if the seat has been sold.
// will display an appropriate message if the seat is taken
// if the seat is empty, the seat will be sold
do
{
cout << "In what row would you like to sit?" << endl;
cin >> rowcount;
cout << "What seat number you would like?" << endl;
cin >> seatnum;
double cost(0);
if (seats[rowcount-1][seatnum-1] == FULL)
{
cout << "You can't purchase those tickets-- those seats are full!!" << endl;
}
else
{
seats[rowcount-1][seatnum-1] = FULL;
sold += 1;
int rc = rowcount;
seatsavail[rc-1]--;
}
} while (sold < tickcount);
// BOOK-KEEPING SECTION:
// calculates the cost for the individual user
// keeps track of the total number of tickets successfully sold
// keeps track of the total profit for the theater and displays it as well
// properly formats everything so that it is displayed with two decimals
int temp = tickcount;
cost = temp * prices[rowcount - 1];
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(2);
cout << "Your total is $" << cost << endl;
ticketsSold += temp;
profit += prices[rowcount-1] * temp;
cout << "Our profit for today is $" << profit << endl;
cost = 0;
}
// displays the total profit of the theater using the information from above
void Theater::todayprofit()
{
cout << "Today's total profit is $" << profit << endl;
}
// displays the number of tickets sold for the movie showing
void Theater::todaysales()
{
cout << "There will be " << ticketsSold << " people watching the show.\n";
}
// displays the number of available seats in each row
void Theater::rowshow()
{
cout << "The following are the number of seats available in each row:" << endl;
for (int rc = 0; rc < 15; ++rc)
cout << seatsavail[rc] << endl;
cout << endl;
}
// displays the number of tickets available for purchase --> subtracts the tickets sold
// from the total number of seats
void Theater::seatshow()
{
cout << "There are "<< 450 - ticketsSold << " seats available for purchase." << endl;
}
// displays the array in all its updated seating-chart glory
void Theater::seatingchart()
{
cout << "This is the current seating chart: " << endl;
for (int r = 0; r < 15; ++r)
{
for(int s = 0; s < 30; ++s)
cout << seats[r][s];
cout << endl;
}
}
// opens the price file, reads in the prices and stores them, closes the file
void Theater::readprice(char& seats, ifstream& fin)
{
fin.open("seats.txt");
if (fin.fail())
{
cout << "I cannot find the prices of the seats- missing input file" << endl;
exit(1);
}
int tmp = ROWS;
for (int i=0; i<ROWS; i++)
{
fin >> prices[i];
}
fin.close();
}
// initializes every seat to empty
void Theater::filltheater()
{
for (char ROWS = 0; ROWS < 15; ++ROWS)
{
for(int SEATS = 0; SEATS < 30; ++SEATS)
seats[ROWS][SEATS] = OPEN;
}
for (char ROWS = 0; ROWS < 15; ++ROWS)
{
for(int SEATS = 0; SEATS < 30; ++SEATS)
cout << seats[ROWS][SEATS];
cout << endl;
}
}
// sets the profit of the theater and the number of tickets sold to zero
void Theater::initialize()
{
profit = 0;
ticketsSold = 0;
}
// initializes the rowcounter
void Theater::initializerc()
{
for (int rc = 0; rc < 15; ++rc)
{
int seatsavail[rc] = {30,30,30,30,30,30,30,30,30,30,30,30,30,30,30};
}
}
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