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DarkBASIC Discussion / Noob question...

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Superdean
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Posted: 6th Apr 2007 16:15
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I have a code that looks like this:

The only problem is, how do I get it to use only numbers on the age and only letters on the name? I will be greatful if someone could help me for it will also help me later on in my game

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SimSmall
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Posted: 6th Apr 2007 16:22 Edited at: 6th Apr 2007 16:26
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take off the dollar sign on cage$, so it becomes cage...

following a variable name with a $ forces the data to be a string...
likewaise, following with a # forces the data to be a float (or a decimal number)

following a number with no sign forces the data to be an integer (a whole number)

following a variable name with both a $ and # does nothing useful, and actually causes your program to not even compile...

edit: missed the second bit... only letters on the name... sorry, can't do easily... since any character at all is allowed in a string (including numbers) the computer doesn't know any better than to just accept the number as if it is supposed to be there...
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Superdean
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Posted: 6th Apr 2007 16:24
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thanks

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Superdean
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Posted: 6th Apr 2007 16:27
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is there any way to make it an if/then statement? for instance i can say

if ;cage>0 then print "You are older than 0!"

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Unseen Ghost
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Posted: 6th Apr 2007 16:40 Edited at: 6th Apr 2007 16:44
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Just add the if statement after the input statement for the age.
if cage >0 then print "You are older than 0"

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Superdean
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Posted: 6th Apr 2007 16:44 Edited at: 6th Apr 2007 16:46
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thanks for your help, but the attached picture happens with the new Set Cursor part.

EDIT: Thanks for the If Then part, it works great.

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Unseen Ghost
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Posted: 6th Apr 2007 16:46
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Check my above post for the if statement.

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Unseen Ghost
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Posted: 6th Apr 2007 16:48
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your welcome.

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Unseen Ghost
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Posted: 6th Apr 2007 16:52
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What version of Dark Basic Classic are you using?
The set cursor statement works great on mine. I have v1.13 enhanced.

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Superdean
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Posted: 6th Apr 2007 17:01
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it doesn't work for me because i have 2 more lines above the ones I gave that say:
print "Program Ready"
print "press any key to continue"
suspend for key

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Unseen Ghost
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Posted: 6th Apr 2007 17:18
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oh,

you would have to drop all the lines down to make room for the ones that print before the ones in the code you posted, then it would work.

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SimSmall
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Posted: 6th Apr 2007 19:00 Edited at: 6th Apr 2007 19:01
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or cls after the input, before printing "you are older than 0"
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TDK
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Posted: 9th Apr 2007 07:45
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You would be better having the whole age input enclosed in a Repeat...Until which you can't exit until the correct thing is entered.

If you accept the age entered as a string you are then able to use VAL to convert it into a number - providing a number has been entered correctly. This in effect does the checking for you as letters entered are ignored by VAL if they are at the end of a string and convert to 0 (zero) if at the start.

Input Name Snippet


Input Age Snippet


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