banking

ID:164574
 
May 22 2007, 7:19 am
 
mob
    banker
        verb/Bank()
            set src in oview(1)
            switch(alert("Would you like to deposit or withdraw?","banker","deposit","withdraw","leave"))
                if("deposit")
                    depositing
                    var/x=input("deposit what?")as null|obj in usr.contents
                    if(x)
                        usr.bank+=x
                        usr.contents-=x
                        sleep(1)
                        goto depositing
                    else
                        switch(alert("Will there be anything else?","banker","deposit","withdraw","leave"))
                            if("withdraw")
                                goto withdrawing
                            if("deposit")
                                goto depositing

                if("withdraw")
                    withdrawing
                    var/x=input("withdraw what?")as null|obj in usr.bank
                    if(x)
                        usr.contents+=x
                        usr.bank-=x
                        sleep(1)
                        goto withdrawing
                    else
                        switch(alert("Will there be anything else?","banker","deposit","withdraw","leave"))
                            if("withdraw")
                                goto withdrawing
                            if("deposit")
                                goto depositing

This is my tacky tacky banking system. I thought it up in ten minutes in school. But, it gives me a LOT of runtime errors! What's wrong with it?
May 22 2007, 8:50 am
Wouldnt this go in "Code Problems"?
May 22 2007, 8:54 am
In response to Super_Mario_Productions07
I think whats wrong with it, is your using a lot of goto statements.
May 22 2007, 9:43 am
Oh My God! Noooooooooooooooooooooooooo!

Goto statements are a sign of very bad program design, very bad. Try splitting the proc into multiple ones.
May 22 2007, 10:41 am (Edited on May 23 2007, 4:31 am)
In response to Quest Industries
How d'you mean, a LOT of goto statements? I mean, surely I need to use at least some... would this be any better?
mob
    banker
        verb/Bank()
            set src in oview(1)
            switch(alert("Would you like to deposit or withdraw?","banker","deposit","withdraw","leave"))
                if("deposit")
                    usr.deposit()
                if("withdraw")
                    usr.withdraw()
    proc/deposit()
        start
        var/x=input("deposit what?")as null|obj in usr.contents
        if(x)
            usr.bank+=x
            usr.contents-=x
            sleep(1)
            goto start
        else
            switch(alert("Will there be anything else?","banker","deposit","withdraw","leave"))
                if("withdraw")
                    usr.withdraw()
                if("deposit")
                    goto start
    proc/withdraw()
        start
            var/x=input("withdraw what?")as null|obj in usr.bank
            if(x)
                usr.contents+=x
                usr.bank-=x
                sleep(1)
                goto start
            else
                switch(alert("Will there be anything else?","banker","deposit","withdraw","leave"))
                    if("withdraw")
                        goto start
                    if("deposit")
                        usr.deposit()

Yes this should probably go in code problems, but it's in developer how-to because it's how-to fix my code problem.

Duh.
____________________
Ok, so that works, now one more thing, how would I make it so that you can't deposit an item you're wearing?

Wait, I got it, man i'm not doing well today =\
Oh and I think i'll tell you my first mistake because it's really funny: i'd written mob/var/list/bank at the top of my code. And it was giving me a runtime. And it took me this long to spot the problem.
May 24 2007, 7:29 am
In response to Adam753
Adam753 wrote:
How d'you mean, a LOT of goto statements? I mean, surely I need to use at least some... would this be any better?

Eh, you don't even have to use goto statements at all. I prefer not using them at all.