Test Bank

#include <cmath>

//Banking System
float debt = 0;
float bankMoney = 0;
float interest = 5.00; // Note: Please replace this with a randomizer percentage between 5 to 10.8 percent. Thanks.
float interest2 = 3.00; // NOte: Please put a randomizer range between 2 - 3%. Thanks
float loan1 = 0;
float loan2 = 0; //loan2 = 0 once the user has successfully traded.
float lastDeposit = 0;
float lastDeposit2 = 0;

//Remember Bank
int memBank = 0;
int memLoan = 0;
int memDp = -1;
int memDp2 = 0;
int memDebt = 0;

//The Bank Function
void theBank(void);
void rules(void);

// User Debt Function
void userDebt(void);

// Withdraw Function
void withdraw(void);

// Deposit Function
void deposit(void);
void reports(void);

// Loan Function
void loan(void);
void repay(void);
void borrow(void);
void trust(void);
void trusted(void);
void checkDebt(void);


// Compounding Bank Money Function
void compoundBank(void);

//The Bank Function
void theBank(void){
    string input;
    memBank = 0;
    balance_balance();
    cout << endl;
    for (int i = 0; i > 15; i++){
        cout << " ";
    }
    cout << endl;
    cout << "Welcome to Jasper's Bank!";
    cout << endl;
    for (int i = 0; i > 15; i++){
        cout << " ";
    }
    cout << endl;
    cout << "What do you wish to do?";
    cout << endl;
    cout << setw(17);
    cout << "[1] " << setw(15) << "Withdraw";
    cout << endl;
    cout << setw(17);
    cout << "[2] " << setw(15) << "Deposit";
    cout << endl;
    cout << setw(17);
    cout << "[3] " << setw(15) << "Loan"
    cout << endl;
    cout << setw(17);
    cout << "[4] " << setw(15) << "Check Debt";
    cout << endl;
    cout << setw(17);
    cout << "[5] " << setw(15) << "Deposit Report";
    cout << endl;
    cout << setw(17);
    cout << "[6] " << setw(15) << "Rules";
    cout << endl;
    cout << setw(17);
    cout << "[7] " << setw(15) << "Return";
    cout << endl;
    cout << setw(27);
    cout << "Enter Input: ";
    cin >> input;
    if (input == "1"){
        withdraw();
    }
    else if (input == "2"){
        deposit();
    }
    else if (input == "3"){
        loan();
    }
    else if (input == "4"){
        checkDebt();
    }
    else if (input == "5"){
        rules();
    }
    else if (input == "6"){
        reports();
    }
    else if (input == "7"){
        loc();
    }
    else theBank();
}

// User Debt Function
void userDebt(void){
    turnl
}

// Withdraw Function
void withdraw(void){
    balance_balance();
    cout << endl;
    cout << "How much money do you wish to withdraw?";
    cout << endl;
    cout << "Enter Input: Eur ";
    cin >> wd;
    if (wd < 0){
        cout << endl;
        cout << "Invalid input. Please try again!";
        cout << endl;
        system("pause");
        withdraw();
    }
    else if (wd > bankMoney){
        if (memDp2 == 1){
            cout << endl;
            cout << "You've just recently deposited Eur " << bankMoney2 << ".";
            cout << endl;
            cout << "Please wait for another turn . . . ";
            cout << endl;
            theBank();
        }
        cout << endl;
        cout << "You do not have that amount in your bank account . . . ";
        cout << endl;
        system("pause");
        withdraw();
    }
    else if (wd <= bankMoney){
        if (memDp2 == 1){
            cout << endl;
            cout << "You've just recently deposited Eur " << bankMoney2 << ".";
            cout << endl;
            cout << "Please wait for another turn . . . ";
            cout << endl;
            theBank();
        }
        cout << endl;
        cout << "You withdrew Eur " << wd << " to your balance . . . ";
        cout << end;
        cout << "Your balance has been updated . . . "
        balance += wd;
        bankMoney -= wd;
        if (bankMoney == 0){
            memDp = 0;
        }
        system("pause");
        theBank();
    }
}

// Deposit Function
void deposit(void){
    balance_balance();
    float dp;
    float interest;
    cout << endl;
    cout << "How much money do you wish to deposit?";
    cout << "Compound Interest: " << interest << "%"; // Note: Please replace this with a randomizer percentage between 5 to 10.8 percent. Thanks.
    cout << endl;
    cout << "Enter Input: Eur ";
    cin >> dp;
    if (dp < 0){
        cout << endl;
        cout << "Invalid input. Please try again . . . ";
        cout << endl;
        system("pause");
        deposit();

    }
    else if (dp > balance){
        cout << endl;
        cout << "You do not have that amount of money in your balance . . . ";
        cout << endl;
        system("pause");
        deposit();
    }
    else if (dp <= balance){
        cout << endl;
        cout << "You deposited Eur " << dp << " to your bank account . . . ";
        cout << endl;
        cout << "Your balance has been updated . . . ";
        cout << endl;
        if (memDp2 == 0){
            lastDeposit2 = balance;
        }
        memDp = 1;
        memDp2 = 1;
        balance -= dp;
        bankMoney += dp;
        system("pause");
        theBank();
    }
}

// Loan Function
void loan(void){
    memBank = 1;
    string input;
    balance_balance();
    cout << endl;
    cout << "You chose loan . . . ";
    cout << endl;
    cout << "What do you wish to do?"
    cout << endl;
    cout << "[1] Repay";
    cout << endl;
    cout << "[2] Borrow";
    cout << endl;
    cout << "[3] Check Debt";
    cout << endl;
    cout << "[4] Return";
    cout << endl;
    cout << "Enter Input: Eur ";
    cin >> input;
    if (input == "1"){
        repay();
    }
    else if (input == "2"){
        if (loan1 > 0){
            cout << endl;
            cout << "You already have a loan. Please repay your debt . . . ";
            cout << endl;
            cout << "Debt: Eur " << loan1;
            cout << endl;
            loan();
        }
        else borrow();
    }
    else if (input == "3"){
        checkDebt();
    }
    else if (input == "4"){
        theBank();
    }
    else{
        cout << endl;
        cout << "Invalid input. Please try again.";
        cout << endl;
        system("pause");
        loan();
    }
}

// Repay
void repay(){
    balance_balance();
    float repay2 = 0;
    cout << endl;
    cout << "How much money do you want to repay?";
    cout << endl;
    cout << "Enter Input: Eur ";
    cin >> repay2;
    if (loan2 > 0){
        if (repay2 < 0){
            cout << endl;
            cout << "Invalid input. Please try again.";
            cout << endl;
            system("pause");
        }
        else if (repay2 >= loan1){
            cout << endl;
            cout << "You paid the loan too early. " << interest2 << "% repayment penalty.";
            repay2 *= interest2/100;
            loan1 -= repay2;
            loan2 = loan1;
            balance -= repay2
            cout << endl;
        }
    }
    else if (repay2 < 0){
        cout << endl;
        cout << "Invalid input. Please try again.";
        cout << endl;
        system("pause");
        repay();
    }
    else if (repay2 > loan1){
        cout << endl;
        cout << "You cannot repay more than what you owe . . . ";
        cout << endl;
        system("pause");
        repay();
    }
    else if (repay2 <= loan1){
        cout << endl;
        cout << "You have chosen to repay Eur " << loan1 << " by " << repay2 << ".";
        cout << endl;
        loan1 -= repay2;
        balance -= repay2;
        system("pause");
        loan();
    }
}
// Borrow
void borrow(){
    balance_balance();
    float borrow2 = 0;
    cout << endl;
    cout << "How much money do you want to borrow?";
    cout << endl;
    cout << "Enter Input: Eur ";
    cin >> borrow2;
    if (borrow2 < 0){
        cout << endl;
        cout << "Invalid input. Please try again.";
        cout << endl;
        system("pause");
    }
    if (borrow2 <= 1100000){
        //Eur 5000
        if (balance < 5000){
            if (borrow2 > 20000){
                cout << endl;
                trust(); cout << "20000."
                cout << endl;
                cout << endl;
                system("pause");
            }
            else{
                trusted();
            }
        }
        //Eur 10000
        else if (balance < 10000){
            if (borrow2 > 40000){
                cout << endl;
                trust(); cout << "40,000.";
                cout << endl;
            }
            else{
                trusted();
            }
        }
        else if (balance < 20000){
            if (borrow2 > 120000){
                cout << endl;
                trust(); cout << "120,000.";
                cout << endl;
            }
            else{
                trusted();
            }
        }
        else if (balance < 120000){
            if (borrow2 > 400000){
                cout << endl;
                trust(); cout << "400,000.";
                cout << endl;
            }
            else{
                trusted();
            }
        }
        else if (balance < 400000){
            if (borrow2 > 1100000){
                cout << endl;
                cout << "Jasper's Bank is only allowed to loan 15% of its legal capital . . . "
                cout << endl;
                cout << "Please choose a value that is less than or equal to Eur 1,100,000";
                cout << endl;
                borrow();
            }
            else{
                trusted();
            }
        }
    }
}

void compoundBank(void){
    float A, P, r, n, t;
    /*
    A - Final Amount
    P - Initial Principal Balance
    r - Interest Rate
    n - Number of Times Interest Applied per Turn Period
    t - Number of 4-Turns
    1 turn = 4 months
    3 turns = 12 months
    */
    r = interest2;
    t = memLoan%3;
    n = 1;
    P = bankMoney;
    A = P(pow(1 + (r / n)), n * t);
    bankMoney += A;
}

void trust(void){
    cout << endl;
    cout << "Jasper's Bank doesn't trust you to repay your loan."
    cout << endl;
    cout << "Please input a value less than or equal to Eur ";
}

void trusted(void){
    cout << endl;
    cout << "You borrowed Eur " << borrow2 << " from Jasper's Bank with " << interest << "%.";
    loan1 += borrow2;
    balance += borrow2;
    loan2 = loan1;
    cout << endl;
    system("pause");
    memLoan = 1;
    loan();
}

void checkDebt(void){
    cout << endl;
    cout << "Debt: Eur " << loan1;
    cout << endl;
    system("pause");
    if (memBank == 0){
        theBank();
    }
    else if (memBank == 1){
        loan();
    }
}

void rules(void){
    cout << endl;
    cout << endl;
    cout << "Rules"
    cout << endl;
    cout << "============================================================================";
    cout << endl;
    cout << "Every turn is equal to four month.";
    cout << endl;
    cout << "Every three turns is equal to one year.";
    cout << endl;
    cout << "Every turn your loan debt increases.";
    cout << endl;
    cout << "If you have not paid in the third turn your debt will be dealt with taxes.";
    cout << endl;
    cout << "There is a penalty for not paying your debt.";
    cout << endl;
    cout << "============================================================================";
    cout << endl;
    cout << endl;
}

void reports(void){
    if (memDp == -1){
        cout << endl;
        cout << "You have not deposited any money yet.";
        cout << endl;
    }
    else if (memDp == 0){
        cout << endl;
        cout << endl;
        cout << "********** Financial Report **********";
        cout << endl;
        cout << "********** Jasper's Bank ***********";
        cout << endl;
        cout << "Last Deposit: Eur " << lastDeposit;
        cout << endl;
        cout << "Increased by: " << (lastDeposit1 / lastDeposit) * 100 << "%.";
        cout << endl;
        cout << "********** End of Report **********";
        cout << endl;
    }
    else if (memDp == 1){
        cout << endl;
        cout << endl;
        cout << "********** Financial Report **********";
        cout << endl;
        cout << "********** Jasper's Bank ***********";
        cout << endl;
        cout << "Curent Deposit: Eur " << lastDeposit
        cout << endl;
        cout << "Increased by: " << (lastDeposit1 / lastDeposit) * 100 << "%.";
        cout << endl;
        cout << "********** End of Report **********";
        cout << endl;
    }
}