Page 1 of 1
Structure Based Variables.
Posted: Wed Apr 14, 2004 12:13 am
by Shannara
Take a look at the following code:
Code: Select all
Structure MapRec
Levels.l
MaxX.l
MaxY.l
EndStructure
MapHeader.MapRec ;The map header
MapHeader\Levels = 12
Returns following error:
This variable doesn't have a structure.
Now, even though that is not true (as it has a structure), it still errors out. I would love to see the ability to declare variables based on a structure in a future version of PB.
Posted: Wed Apr 14, 2004 12:36 am
by Kris_a
that is already possible. This code works fine for me! 8O
(Windows XP, PB 3.90)
Posted: Wed Apr 14, 2004 12:36 am
by Paul
???
Works fine here
How else do you think we fix the odd Windows API structures that is missing information?
Posted: Wed Apr 14, 2004 12:53 am
by Shannara
Its not working in PB 3.90 for me. .. Oh nvm, I was trying to use the variable in a For....Next Loop... bleh, I gotta remember that the loops in PB are very restrictive ....any chance of using variables in the future with loops?
Posted: Wed Apr 14, 2004 1:25 am
by Kale
Oh nvm, I was trying to use the variable in a For....Next Loop... bleh
How about showing us code exactly the way your are using it? then we can see the
real problem!
Posted: Wed Apr 14, 2004 1:41 am
by Shannara
mmhmm, turns it its not working.. lol following is the code....
Code: Select all
Structure MapRec
Levels.l
MaxX.l
MaxY.l
EndStructure
MapHeader.MapRec ;The map header
L.l
X.l
Y.l
ML.l
ML = MapHeader\Levels
MX.l
MX = MapHeader\MaxX
MY.l
MY = MapHeader\MaxY
For L = 1 To ML
For X = 1 To MX
For Y = 1 To MY
;Empty Loop
Next
Next
Next
Posted: Wed Apr 14, 2004 1:44 am
by freak
Of course your code does nothing. All values are 0 because you never
assigned any numbers to them.
Timo
Posted: Wed Apr 14, 2004 2:01 am
by Shannara
I wonder why I didnt catch that... bleh, evil me
this thread can be removed or moved, if someone wants to
Posted: Wed Apr 14, 2004 3:07 am
by Shannara
*sigh* It still gives the error message, Even with numbers assigned to them. I found a way around this (AFAIK) "bug". Declare the variable as an array, and it will run.
Can anybody move this back into the bugs section for Fred's attention?
Posted: Wed Apr 14, 2004 3:40 am
by Dare2
Heya Shannara,
I'm not sure it is a bug in PB. (But I am reading between the lines here..)
Are you wanting to have your structure move across a series of values?
If so, an array structure is needed. Or a block of memory that the structure record "floats" across, using memory addressing.
Posted: Wed Apr 14, 2004 4:06 am
by Shannara
I wanted one variable, defined as a structure. Such as MyVar.Structure.
Then access that variable's (structure) members where-ever.
Posted: Wed Apr 14, 2004 4:20 am
by AlGonzalez
Not really sure what you're looking for, but here is your code with the values initialized and no error!
Code: Select all
Structure MapRec
Levels.l
MaxX.l
MaxY.l
EndStructure
MapHeader.MapRec ;The map header
MapHeader\Levels = 2
MapHeader\MaxX = 3
MapHeader\MaxY = 3
ML.l = MapHeader\Levels
MX.l = MapHeader\MaxX
MY.l = MapHeader\MaxY
If OpenConsole()
L.l : X.l : Y.l
PrintN("L,X,Y")
PrintN("-----")
For L = 1 To ML
For X = 1 To MX
For Y = 1 To MY
PrintN(Str(L)+","+Str(X)+","+Str(Y))
Next Y
Next X
Next L
Input()
CloseConsole()
EndIf
End
Posted: Wed Apr 14, 2004 6:52 am
by Shannara
That seems to work for me. Hrm, I wonder why ah... cant assign constants to variables in structures can we? lol. Thats the only diff in code. hrm and them being in diff files.. argh, what a PITA.
I figured out the problem!! The variable must be declared as a global in order to be referenced in a procedure
Thanks guys!