Com. Prog 2 Project - Simple C++ System

#include <iostream>
#include <fstream>
using namespace std;

void doc (float amount, int cash, int change);
void info();

int main ()
{
	float st1 = 0, st2 = 0, st3 = 0, st4 = 0, st5 = 0;
	int q1 = 0, q2 = 0, q3 = 0, q4 = 0, q5 = 0;
	int order;
	float amount = 0, cash = 0, change = 0;

	// PRICES
	double a1 = 45.00, a2 = 50.00, a3 = 55.00, a4 = 99.00, a5 = 99.00;

	string m1 = "Regular Crispy Fries & Vanilla Cone Twirl";
	string m2 = "Spaghetti w/ Regular Iced Tea";
	string m3 = "Burger Steak w/ Regular Iced Tea";
	string m4 = "Fried Chicken w/ Regular Fries & Regular Iced Tea";
	string m5 = "Fried Chicken w/ Macaroni Soup & Regular Iced Tea ";
	fstream my;

	my.open("receipt.doc", ios::app | ios::in | ios::out );

	here:
	do
	{
		system("cls");
		cout << "\t\t-------------------------------------------" << endl;
		cout << "\t\t||---------------------------------------||" << endl;
		cout << "\t\t||       WELCOME TO ORDERING SYSTEM      ||" << endl;
		cout << "\t\t||---------------------------------------||" << endl;
		cout << "\t\t-------------------------------------------" << endl;
		cout << endl;
		cout << "-------------------------------- M E N U -------------------------------" << endl;
		cout << "||                                                                    ||" << endl;
		cout << "|| 1. Regular Crispy Fries & Vanilla Cone Twirl           = 45.00 PHP ||" << endl;
		cout << "|| 2. Spaghetti w/ Regular Iced Tea                       = 50.00 PHP ||" << endl;
		cout << "|| 3. Burger Steak w/ Regular Iced Tea                    = 55.00 PHP ||" << endl;
		cout << "|| 4. Fried Chicken w/ Regular Fries & Regular Iced Tea   = 99.00 PHP ||" << endl;
		cout << "|| 5. Fried Chicken w/ Macaroni Soup & Regular Iced Tea   = 99.00 PHP ||" << endl;
		cout << "|| 6. DONE!                                                           ||" << endl;
		cout << "------------------------------------------------------------------------" << endl;
		amount = st1 + st2+ st3 + st4 + st5;
		cout << "||                                      Your total amount = P "<< amount << "       ||" << endl;
		cout << "------------------------------------------------------------------------" << endl;
		cout << endl << endl;
		cout << "View Info: Enter 0" << endl;
		cout << endl << "Hello there!, Welcome to Chicks' Resto! What is your order? ";
		cin >> order;
		cout << "\n";

		switch (order)
		{
			case 0:
				system ("PAUSE");
                system ("CLS");
				info();
				system ("PAUSE");
                system ("CLS");
                goto here;
				break;
			case 1:
				cout << "How many orders? \n";
				cin >> q1;
				cout << endl;
				cout << "\nYou Order " << q1 << " meal/s of Regular Crispy Fries & Vanilla Cone Twirl = " << a1 <<" PESOS" << endl;
				cout << endl;
				st1 = q1 * a1;
				cout << "Your total expense is: "<< st1 <<" PESOS"<<endl;
				cout << endl;
				break;

			case 2:
				cout << "How many orders? \n";
				cin >>q2;
				cout << endl;
				cout << "You Order " << q2 << " meal/s of Spaghetti w/ Regular Iced Tea = " << a2 <<" PESOS" <<endl;
				cout << endl;
				st2 = q2 * a2;
				cout << "Your total expense is: "<< st2 <<" PESOS"<<endl;
				cout << endl;
				break;

			case 3:
				cout << "How many orders? \n";
				cin >>q3;
				cout << endl;
				cout << "You Order " << q3 << " meal/s of Burger Steak w/ Regular Iced Tea = "<< a3 <<" PESOS"<<endl;
				cout << endl;
				st3 = q3 * a3;
				cout << "Your total expense is: "<< st3 <<" PESOS"<<endl;
				cout << endl;
				break;

			case 4:
				cout << "How many orders? \n";
				cin >>q4;
				cout << endl;
				cout << "You Order " << q4 << " meal/s of Fried Chicken w/ Regular Fries & Regular Iced Tea = "<< a4 <<" PESOS"<<endl;
				cout << endl;
				st4 = q4 * a4;
				cout << "Your total expense is: "<< st4 <<" PESOS"<<endl;
				cout << endl;
				break;

			case 5:
				cout << "How many orders? \n";
				cin >>q5;
				cout << endl;
				cout << "You Order " << q5 << " meal/s of Fried Chicken w/ Macaroni Soup & Regular Iced Tea = "<< a5 <<" PESOS"<<endl;
				cout << endl;
				st5 = q5 * a5;
				cout << "Your total expense is: "<< st5<<" PESOS"<<endl;
				cout << endl;
				break;

			case 6:
	        	cout<<"\nTotal cash: P";
        		cin>>cash;

				if(cash < amount)
				{
					do
					{
        				cout << endl;
						cout << "ERROR!! Please Add Cash\n";
						system ("pause");
						system ("cls");
						amount = st1 + st2 + st3 + st4 + st5;
        				cout << "\nYour total amount is P" << amount;
        				cout << "\n\n";
						cout << "Cash: ";
						cin >> cash;
					} while(cash < amount);
				}
				change = cash - amount;
       			cout << "Your change will be P" << change;
    	    	cout << "\n\nThank you for ordering!, please come again soon! ??";
				cout << "\n\n";

				string line="*****************************************";
				string msg ="		 Chiks' FastMeal Resto";
				my << "\n\n";
				my << line << endl;
				my << msg << endl;
				my << endl;
				my << "Cashier Name: Group 3\n\n";
				if (st1 > 0 ){
					my << m1 << q1 << " pc./s " << st1 << ".0 Php" << endl;
				}

				if (st2 > 0 ){
					my << m2 << q2 << " pc./s  " << st2 << ".0 Php" << endl;
				}

				if (st3 > 0 ){
					my << m3 << q3 <<" pc./s  " << st3 << ".0 Php" << endl;
				}

				if (st4 > 0 ){
					my << m4 << q4 << " pc./s  " << st4 << ".0 Php" << endl;
				}

				if (st5 > 0 ){
					my << m5 << q5 << " pc./s  " << st5 << ".0 Php" << endl;
				}

				my << "\n\n";
				my << "Total: "<< amount <<".0 Php"<< endl;
				my << "Cash: "<< cash << ".0 Php" << endl;
				my << "Change: "<< change << ".0 Php" << endl << endl << endl;
				my << "THANK YOU! COME AGAIN!\n";
				my << line << endl;

				st1 = 0, st2 = 0, st3 = 0, st4 = 0, st5 = 0;
				q1 = 0, q2 = 0, q3 = 0, q4 = 0, q5 = 0;
				amount = 0;
				cash = 0;
				change = 0;

				system ("pause");
		}
	}
	while (order != 0);
	my.close();
	return 0;
}

void info()
{
	cout << "-------------------------------------------------------" << endl;
	cout << "||---------------------------------------------------||" << endl;
	cout << "||             SIMPLE C++ SYSTEM PROGRAM             ||" << endl;
	cout << "||---------------------------------------------------||" << endl;
	cout << "|| Section: || Subject:      || Schedule:            ||" << endl;
	cout << "||  BSINT-A ||  Com. Prog. 2 ||  8:30-10:00 AM (TTH) ||" << endl;
	cout << "||---------------------------------------------------||" << endl;
	cout << "-------------------------------------------------------" << endl;
	cout << endl;
	cout << "-------------------------------------------------------" << endl;
	cout << "||                       MEMBERS                     ||" << endl;
	cout << "-------------------------------------------------------" << endl;
	cout << endl;
	cout << "-------------------------------------------------------" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             CALABROSO, TEDDY GLENBOY              ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             CARVAJAL, CHRISTIAN FRANC             ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             CRISOSTOMO, CARMELA JANE              ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             DESCALLAR, MARIELE                    ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             EJERCITO, AHLLYSA                     ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             ETOM, DARYL ANTHONY                   ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "||             GELE, NIñA LYNN                       ||" << endl;
	cout << "||                                                   ||" << endl;
	cout << "-------------------------------------------------------" << endl;
}