Write a program that simulates a soft drink machine Your pro

Write a program that simulates a soft drink machine. Your program will consist of two sections.

One section will be the functions that make up the drink machine. The second section will be the functions that provide the user

interface for the drink machine and allow the user to purchase

drinks.

Please and thank you for your time.

Solution

#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
#include <cctype>
using namespace std;

struct Machine
{
string name;
double cost;
int num;
};

void init(Machine []);
int menu(Machine[]);
void payment(double);

int main()
{
Machine drink[5];
int choice;
double made=0;
init(drink);
choice=menu(drink);
while(choice!=5)
{
payment(drink[choice].cost);
made+=drink[choice].cost;
drink[choice].num--;
choice=menu(drink);
}
cout<<\"Today the machine has made $\"<<setprecision(2)<<fixed<<made<<endl;
system(\"pause\");
return 0;
}

void payment(double p)
{
double pay;
cout<<\"Your drink costs $\"<<setprecision(2)<<fixed<<p<<endl;
cout<<\"Enter payment: \";
cin>>pay;
while(pay<0||pay>1.||pay<p)>
{
cout<<\"please insert the correct amount for your drink!\ \";
cout<<\"maximum payment is $1.00\ \";
cout<<\"Enter payment: \";
cin>>pay;
}
cout<<\"Your change is: $\"<<setprecision(2)<<fixed<<pay-p<<endl;
return;
}

void init(Machine d[])
{
ifstream infile(\"DrinkMachineInventory.txt\");

if(infile.fail())
{
cout << \"Could not find the file DrinkMachineInventory.txt \ \";
cout << \"Exiting the program\ \";
exit(0);
}

int i=0;
char ch;
string word= \"\";

while(!infile.eof())
{
word= \"\";
ch = infile.get();
while(true)
{
if(isdigit(ch) || ch == \'\ \')
break;
else
word += ch;
ch = infile.get();
}

if(word != \"\")
{
d[i].name = word;
infile >> d[i].cost >> d[i].num ;
i++;
}
}

infile.close();   
}

int menu(Machine d[])
{
int choice=8,i;
bool soldout=true;
while((choice<1||choice>6)||soldout)
{
soldout=false;
cout<<\"Menu\ \";
cout<<\" Drink Cost\\tleft\ \";
for(i=0;i<5;i++)
{
cout<<i+1<<\". \"<<setw(15)<<left<<d[i].name<<setw(5);
cout<<setprecision(2)<<fixed<<d[i].cost<<\"\\t\"<<d[i].num<<endl;
}
cout<<\"6. Exit\ \";
cout<<\"Enter Choice \";
cin>>choice;
if(choice<1||choice>6)
cout<<\"invalid entry\ \";
else
if(d[choice-1].num==0)
{cout<<\"sold out\ \";
soldout=true;
}
}
return choice-1;
}