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Code comments. Comments can also be introduced using #, single quote character '.

The # character can only be used as remarks if it is the first character of the line.

Example 1:

' That text-line is just a few remarks
REM another comment
# one more comment

Example 2:

' Although the code is very short (less then thousands of lines...), it's
' almost impossible to decode it... - That's why comments are so useful:
' to remind *yourself* and others what you did and why.
' Let's try to analyze "Curlie borealis.bas" code and add few comments to it:

' --- Start of "Curlie borealis.bas" + Comments:
' Initialize variables for the main loop:
Randomize           ' - I'm not sure why do we need it here... (MGA?)
ff = 440.03         ' Factor for defining x,y location to draw point
maxi = 25000        ' Maximum points to draw in each shape
maxi2 = maxi \ 2    ' Factor for defining two different color schemes in shape
b = Rgb(40, 20, 30) ' Background color
Color 0, b
Cls
' Run program in an endless loop (Press Ctrl+B or Ctrl+C to stop):
While 1
  ff += 9.444 ' Move the next shape to different x,y location

  ' Draw a single shape using two color schemes, or draw an invisible shape:
  For i = 0 To maxi
    ' Define location (x,y) to draw a single point:
    f += ff
    x = Min(xmax, -x + Cos(f * i)) ' (MIN makes sure location is within screen)
    y = Min(ymax, -y + Sin(f * i))

    ' Define nice color to draw a point:
    If cc Mod 6 = 0 Then
      If i < maxi2 Then ' One color scheme
        c = Rgb(255 - 255 * i \ maxi2, 255 * i \ maxi2, 0)
      Else              ' Second color scheme
        c = Rgb(0, 255 - 255 * (i - maxi2) \ maxi2, 255 * (i - maxi2) \ maxi2)
      Fi
    Else
      c = b ' Use background color to draw invisible shape
    Fi

    ' Draw a single point (pixel):
    Pset x, y, c
    If i Mod 5000 = 0 Then Showpage ' Update screen each 5000 points (smoother)
  Next
  cc++ ' Counter for drawing invisible shape (using background color)
Wend
' --- End of "Curlie borealis.bas" + Comments

' To sum up:
' Whether you write a short program or long, comments will help you
' and others to understand, debug and improve your program later on; i.e.
' comments make your code useful!
REM "Curlie borealis.bas" code example taken from:
REM http://smallbasic.sourceforge.net/?q=comment/1184#comment-1184
REM Without explicit permission from MGA...

Code samples using REM

000 hello.bas 001 3 ways to print hello 5 times.bas 002 numeric variables.bas 004 loops.bas 005 challenge.bas 006 arrays+.bas 100lines.bas 2048.bas 3d_palmx.bas 7gables.bas ai.bas analog clock.bas anomail.bas bairstow.bas BAS_1968.bas BAS_NOW.bas base64.bas betrayal: crows ii.bas biorythms.bas blackjack.bas BlackJack.bas blushing snowflakes.bas Calendar.bas calendar.bas Capitol pal test.bas Chaos_1xt.bas Chaos_NPhase.bas circ.bas colors1.bas

Language

AND AS BAND BG BOR BYREF CALL CASE CATCH CONST DECLARE DEF DO ELIF ELSE ELSEIF END END TRY ENDIF EQV EXIT FALSE FI FOR FUNC GOSUB GOTO IF IFF IMP IN LABEL LET LIKE LOCAL LSHIFT MDL MOD NAND NEXT NOR NOT ON OR REM REPEAT RETURN RSHIFT SELECT STEP STOP SUB THEN THROW TO TRUE TRY UNTIL USE USG USING WEND WHILE XNOR XOR

This page was last edited on Thu, 6 Jul 2023 10:20:18 +0200 | Markdown processed with pandoc 3.1.12.1

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