### Thread: Psuedocode - Write a slot machine program using two functions

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#### Psuedocode - Write a slot machine program using two functions

Write a slot machine program in psuedocode. The object of the game is to get 2 or 3 of the same numbers out of a total of 3 digits (each digit is in the range 1-9).

Requirements

· Welcome the user with an introduction and ask how much money they want to put in the slot machine.
· Ask the user how much of their money they want to bet
· Generate the three digits and show them to the user (hint: you will need to generate each digit separately.)
· Any 3 matching digits = Win ten 10 times your bet
· Any 2 matching digits = Win 2 times your bet
· Anything else = Lose your bet
· Tell the user how much they won or lost and how much money they have remaining
· Allow the user to play again, but only if they have money left
· When the user is out of money, thank them and end the game
· Make sure that you are validating what the user is doing. For example, don't let them make a bet higher than the amount they put in the machine.
· Use at least two FUNCTIONS to modularize the program (these functions must be written by you and they must pass and/or return arguments).

I think I might have the logic, which I've copied and pasted below, but I'm not sure how to modularize it. I'm lost regarding what the argument would be, the return, what to call, and what the local vs global would be. Sometimes I think I've got it, but then I do the ole' "ruffling of the paper" and starting from scratch. I think one function might be to validate if the balance is greater than the bet, with another function calculating the balance/profit/loss.

My logic

Code:
```declare int balance = 0
declare int bet = 0
declare int digit1 = 0
declare int digit2 = 0
declare int digit3 = 0
declare string play = ""

prompt "Welcome to Crazy Slots!"
prompt "How much money do you want to insert into the slot machine?"
input balance

DO
prompt "How much money do you want to bet?"
input bet
IF(bet > balance)THEN
output "You do not have a sufficient balance to bet that amount."
ENDIF
UNTIL(balance > bet)

DO
digit1=random(9)+1
output digit1
digit2=random(9)+1
output digit2
digit3=random(9)+1
output digit3
IF(digit1 == digit2)AND(digit1 == digit3)
bet = bet * 10
balance = balance + bet
output "You've won " + bet + " and have " + balance + " remaining."
ELSEIF(digit1 == digit2)AND(digit1 == digit3)OR(digit2 == digit3)THEN
bet = bet * 2
balance = balance + bet
output "You've won " + bet + " and have " + balance + " remaining."
ELSEIF(digit1 != digit2)AND(digit1 != digit3)AND(digit2 != digit3)THEN
bet = bet - bet
balance = balance - bet
output "You've lost " + bet + " and have " + balance + " remaining."
ENDIF
IF(balance > 0)THEN
prompt "Do you want to play again?(y/n)"
input play
ENDIF
UNTIL(play == "n")OR(balance <= 0)

IF(play == "n")THEN
"Thanks for playing!"
ELSEIF(balance <= 0)THEN
output "Your balance is null. Thank you for playing!"
ENDIF```
Thanks in advance for any help given.
2. Well I can see two easy functions

bet = getBet(balance)
balance = play(balance,bet)
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Per your reply, I gave it another try. As stated, I'm not too familiar on how to create the functions themselves. Did I get warmer? Colder?

Code:
```declare getBet(real bet1)
{
declare real bet = 0.0
declare real balance = 0.0

prompt "How much money do you want to bet?"
input bet
bet = getBet(balance1)

IF(bet1 > balance1)THEN
RETURN "You do not have a sufficient balance to bet that amount."
ENDIF
UNTIL(balance1 > bet1)

RETURN bet1
}

declare calcBalance(real balance1)

{
declare real balance = 0.0
declare real bet = 0.0

IF(digit1 == digit2)AND(digit1 == digit3)
bet = bet * 10
balance = balance + bet
output "You've won " + bet + " and have " + balance + " remaining."

ELSEIF(digit1 == digit2)AND(digit1 == digit3)OR(digit2 == digit3)THEN
bet = bet * 2
balance = balance + bet
output "You've won " + bet + " and have " + balance + " remaining."

ELSEIF(digit1 != digit2)AND(digit1 != digit3)AND(digit2 != digit3)THEN
bet = bet - bet
balance = balance - bet
output "You've lost " + bet + " and have " + balance + " remaining."
ENDIF
balance = play(balance, bet)

RETURN balance1
}

MAIN(

prompt "Welcome to Crazy Slots!"
prompt "How much money do you want to insert into the slot machine?"
input balance

DO
digit1=random(9)+1
output digit1

digit2=random(9)+1
output digit2

digit3=random(9)+1
output digit3

IF(balance > 0)THEN
prompt "Do you want to play again?(y/n)"
input play
ENDIF

UNTIL(play == "n")OR(balance <= 0)

IF(play == "n")THEN
"Thanks for playing!"
ELSEIF(balance <= 0)THEN
output "Your balance is null. Thank you for playing!"
ENDIF```
4. > declare getBet(real bet1)
What did I suggest as the interface?

This is a direct copy/paste of your post #1, wrapped in a function
Code:
```real getBet ( real balance )
real bet
DO
prompt "How much money do you want to bet?"
input bet
IF(bet > balance)THEN
output "You do not have a sufficient balance to bet that amount."
ENDIF
UNTIL(balance > bet)
return bet
end```
Now use the same idea for play.
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Did I write play correctly in a function?

Code:
```string play(real balance, real bet)
{
IF(balance > 0)THEN
prompt "Do you want to play again? (y/n)"
input play
ENDIF
return play
}```

Originally Posted by salem
> declare getBet(real bet1)
What did I suggest as the interface?

This is a direct copy/paste of your post #1, wrapped in a function
Code:
```real getBet ( real balance )
real bet
DO
prompt "How much money do you want to bet?"
input bet
IF(bet > balance)THEN
output "You do not have a sufficient balance to bet that amount."
ENDIF
UNTIL(balance > bet)
return bet
end```
Now use the same idea for play.
6. > Did I write play correctly in a function?
Think about it - what bit of your code takes the balance and a bet, which results in balance being modified.

How does your attempt even use bet ?

In short, no, you're still not getting it.

To show you any more would be just giving you your homework on a plate, so you're just going to have to try harder.
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I thought about it, and I believe the following is the bit of code that takes the balance and a bet, resulting in the balance being modified.

Code:
``` string play(real balance, real bet)
{
real digit1 = 0.0
real digit2 = 0.0
real digit3 = 0.0

DO
digit1=random(9)+1
output digit1

digit2=random(9)+1
output digit2

digit3=random(9)+1
output digit3

IF(digit1 == digit2)AND(digit1 == digit3)
bet = bet * 10
balance = balance + bet
output "You've won " + bet + " and have " + balance + " remaining."

ELSEIF(digit1 == digit2)AND(digit1 == digit3)OR(digit2 == digit3)THEN
bet = bet * 2
balance = balance + bet
output "You've won " + bet + " and have " + balance + " remaining."

ELSEIF(digit1 != digit2)AND(digit1 != digit3)AND(digit2 != digit3)THEN
bet = bet - bet
balance = balance - bet
output "You've lost " + bet + " and have " + balance + " remaining."
ENDIF

IF(balance > 0)THEN
prompt "Do you want to play again?(y/n)"
input play
ENDIF
UNTIL(play == "n")OR(balance <= 0)
return play
}```
Originally Posted by salem
> Did I write play correctly in a function?
Think about it - what bit of your code takes the balance and a bet, which results in balance being modified.

How does your attempt even use bet ?

In short, no, you're still not getting it.

To show you any more would be just giving you your homework on a plate, so you're just going to have to try harder.
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Would the main be the following?

Code:
```MAIN(

prompt "Welcome to Crazy Slots!"
prompt "How much money do you want to insert into the slot machine?"
input balance
balance = play(balance,bet)

bet = getBet(balance)

IF(play == "n")THEN
"Thanks for playing!"
ELSEIF(balance <= 0)THEN
output "Your balance is null. Thank you for playing!"
ENDIF```