Re: WSMaker 2.0

 BBS: Inland Empire Archive
Date: 11-04-92 (18:04)             Number: 316
From: VICTOR YIU                   Refer#: NONE
  To: ZACK JONES                    Recvd: NO  
Subj: Re: WSMaker 2.0                Conf: (2) Quik_Bas
 -=> Quoting Zack Jones to Victor Yiu <=-

 screen saver routine...

Well, it is nothing major at all -- I even wonder why you ask...

My program is structured (WSMaker) so that whenever the program waits for
a keystroke with INKEY$ (that's all it uses -- it occurs in a total of
about... 10 places), a CALL Clock (X) is also executed within the loop:

    I$ = INKEY$
    Clock 0
Clock 1

SUB Clock (Pressed%)

Clock checks if the time has advanced, and if so, it will write it in the
screen, and check if the time elapsed from the Last keystroke is more than
180 seconds.  If so, invoke ScreenSaver (SUB) and reset the counter when

Clock is called with a parameter Pressed -- meaning if a key was just pressed
or not.

Here is SUB Clock:

SUB Clock (Pressed%) STATIC

    TimeCount& = Timr
    IF Pressed = 1 THEN LastKeyPress& = TimeCount&

    IF OldTime$ <> TIME$ THEN
        OldTime$ = TIME$

        ' REMOVE IF NEEDED!!!!
        'DEF SEG = 0
        'POKE 1047, PEEK(1047) AND (NOT 32)
        'DEF SEG

' why the hell am I doing this nasty routine to extract time, while I could
'use VAL()?  VAL is slow and requires floating point.

        Hour = (ASC(TIME$) - 48) * 10 + (ASC(MID$(TIME$, 2)) - 48)
        IF Hour > 12 THEN
            T$ = MID$(STR$(Hour - 12), 2) + MID$(TIME$, 3) + "pm"
            IF Hour = 0 THEN T$ = "12" + MID$(T$, 2)
            IF Hour < 10 THEN T$ = Blank$ + T$
            IF LEFT$(TIME$, 1) = "0" THEN
                T$ = Blank$ + MID$(TIME$, 2)
                T$ = TIME$
            END IF
            IF Hour = 0 THEN T$ = "12" + MID$(T$, 3)
            IF Hour < 12 THEN T$ = T$ + "am" ELSE T$ = T$ + "pm"
        END IF

        LOCATE 1, 68, 0
        COLOR 0, 7
        PRINT " ";
        IF ColorM THEN COLOR 15, 7
        PRINT T$;

        IF SSaver THEN
            Tim& = TimeCount&
            IF ((Tim& - LastKeyPress&) > SSDelay) THEN
                LastKeyPress& = Timr
                'LastShow& = Timr
            END IF
        END IF
    END IF

Hope it helps.  If you have any questions, just ask.  :-)

If you were asking about how to make the ACTUAL screensaver routine...

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