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#include <iostream>
#include <iomanip>
using namespace std;
struct drinkInfo { // this struct should be at the top of the file
string drinkName;
int totalDrinks;
float drinkPrice;
};
// Prototype your functions...
// All these three function have the array passed in as a parameter and the size
// of the array.
//
// function1, prints whatever is in the vending machine
void vendingMachine(drinkInfo numDrinks[], const int ARRAY_SIZE);
// function 2, returns a value which is the amount of earnings
float getEarnings(drinkInfo numDrinks[], const int ARRAY_SIZE);
// function 3, purchases a drink from the machine
void purchaseDrink(drinkInfo numDrinks[], const int ARRAY_SIZE);
void vendingMachine(drinkInfo numDrinks[], const int ARRAY_SIZE)
{
for(int i = 0; i < ARRAY_SIZE; i++)
{
// Here you are just passing through each array and outputting the
// information on each drink. This should be fairy simple. You must loop
// the array and print each element out from the array;
}
}
float getEarnings(drinkInfo numDrinks[], const int ARRAY_SIZE)
{
// Ok so you are getting the earnings.
float totalEarnings = 0; // So we declare a float. This is the value we are returning.
for(int i = 0; i < ARRAY_SIZE; i++)
{
// Again, here you want to loop through the array and add up the total
// amount sold.
totalEarnings = totalEarnings + numDrinks[i].drinkPrice;
}
return totalEarnings;
}
void purchaseDrink(drinkInfo numDrinks[], const int ARRAY_SIZE)
{
// Remember that we've already displayed the menu of drinks in main, so all
// the user has to do is select the drink they want to buy.
int personChoice;
cout << "Which drink do you want to purchase?"
<< " >> ";
}
int main(){
int choice;
const int ARRAY_SIZE = 5;
// Good job, you've set values for the arrays.
drinkInfo numDrinks[ARRAY_SIZE] = {{"Coke (can)", 6, 0.75}, {"Coke (bottle)", 6, 1.25}, {"Mountain Dew (can)", 6, 0.75}, {"Water", 6, 1.75}, {"Full Throttle", 6, 2.00}};
// You actually don't need this for loop here... You are developing a menu so I
// would say research on how to build menus. They are actually quite simple.
/* for(int i=0; i < ARRAY_SIZE; i++){
vendingMachine(numDrinks, ARRAY_SIZE); // Pass parameters into your function
cout << "Enter your choice: " << endl;
cin >> choice;
if ((choice == 0) || (choice == 1) || (choice == 2) || (choice == 3) || (choice == 4)){
}
else {
break;
}
}
*/
/*-----------------------------------------------------------------------------
* What you actually need to do here is emulate a menu.
*-----------------------------------------------------------------------------*/
bool person_atVendingMachine = true; // Create a boolean and set it to true
// Since the person is at the vending machine, we want to display drinks, obviously
// To achieve this, we create a loop
while(person_atVendingMachine == true) // While the person is at the vending machine
{
vendingMachine(numDrinks, ARRAY_SIZE); // We always display the drinks no matter what
cout << "[1] Purchase drink" << endl <<
"[2] Show total earnings" << endl <<
"[3] Leave" << endl;
cout << " >> ";
cin >> choice;
if(choice == 1)
{
// Call your function to purchase a drink
}
// Call your function to purchase a drink
else if(choice == 2)
{
// Call your function to show total earnings
}
else if(choice == 3)
{
// They are leaving the vending machine, so we need to break out of
// this loop, to do so we just do this
person_atVendingMachine = false;
}
else
{
// Display that it was not a choice. Don't insert a break state,
// though. Simple just display that it wasn't a choice and it should
// loop over again.
}
}
return 0; // You need a return statement here. I've placed one for you.
} // end of main bracket
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