2011-03-29, 02:17 AM
This does not work:
However if I rem out everything that has Space32$ in it and unrem:
'Print at i, 0; String$(32, " ")'
Then it works fine and heap size does not seem to matter. If I press break
and restart the program then it fails on the second run even though it
works fine the first time if I make the changes noted above.
My bat file to compile this is as follows:
@echo off
if exist GAME.TAP del GAME.TAP
zxb Invasion.b --optimize=0 --output=GAME --tap --BASIC --autorun --org=39680 --array-base=0 --string-base=0 --heap-size=1280 --strict-bool --enable-break
ren GAME GAME.TAP
I do not trust this string handling and it would be nice to have a inbuildt
String$(NumChars, Char$) function.
Thanks,
Darkstar.
Code:
#Include "alloc.bas"
Declare function String$ (ByVal NumberOfChars as ubyte, ByVal Char as string) as string
Declare sub PlayScrBasic (byval SkyColor as ubyte)
Ink 7: Paper 0: Flash 0: Bright 1: Over 0: Inverse 0: Border 0: Cls
Print "Hello"
Const Black as ubyte = 0
Const Blue as ubyte = 1
Const Red as ubyte = 2
Const Magenta as ubyte = 3
Const Green as ubyte = 4
Const Cyan as ubyte = 5
Const Yellow as ubyte = 6
Const White as ubyte = 7
PlayScrBasic (Cyan)
End
Function String$ (ByVal NumberOfChars as ubyte, ByVal Char as string) as string
'Dim Chars$ as string
'Dim CharPtr as uinteger
'Dim CharsPtr as uinteger
'Dim CharsPtrDeallocate as uinteger
'CharStr
'NumberOfChars = NumberOfChars + 1
'CharsPtr = Allocate(NumberOfChars)
'Dim CharStr as string at @CharP
''CharP = @Char$
'Return "x" '@Char$
Dim i as ubyte
For i = 1 to NumberOfChars
Chars$ = Chars$ + Char$
Next i
Return Chars$
End Function
sub PlayScrBasic (byval SkyColor as ubyte)
Dim i as ubyte
Dim Space32$ as string
Space32$ = String$(32, " ")
cls
Paper SkyColor
If SkyColor <> 0 then
fOR i = 0 TO 12
'Print at i, 0; String$(32, " ")
Print at i, 0; Space32$
Next i
End if
Space32$ = ""
Paper Green
Print at 11, 6; String$(21, " ")
FOR i = 8 TO 21
Paper Red
Print at i, 5; " "
IF i > 11 THEN
Print at i,5; String$(22, " ")
IF i > 12 AND i < 21 THEN
Paper Blue
Print at i, 0; String$(5, " ")
Print at i, 27; String$(5, " ")
End if
End if
Next i
Paper Yellow
Print at 21, 0; String$(5, "Û")
Print at 21, 27; String$(5, "Û")
Paper Black
end subHowever if I rem out everything that has Space32$ in it and unrem:
'Print at i, 0; String$(32, " ")'
Then it works fine and heap size does not seem to matter. If I press break
and restart the program then it fails on the second run even though it
works fine the first time if I make the changes noted above.
My bat file to compile this is as follows:
@echo off
if exist GAME.TAP del GAME.TAP
zxb Invasion.b --optimize=0 --output=GAME --tap --BASIC --autorun --org=39680 --array-base=0 --string-base=0 --heap-size=1280 --strict-bool --enable-break
ren GAME GAME.TAP
I do not trust this string handling and it would be nice to have a inbuildt
String$(NumChars, Char$) function.
Thanks,
Darkstar.