Challenge....

[Agamemnus]

whoah!

[Antoni Gual]

Rel: Can I post more than once?

Code:

1 IF re THEN CLEAR  ELSE SCREEN 13
2 x = RND * 320
3 y = RND * 199
4 im2 = im * im
5 im = 2 * re * im + (y / 100 - 1)
6 re = re * re - im2 + (x / 120 - 1.9)
7 iter% = iter% + 1
8 IF ABS(re) + ABS(im) > 2 OR iter% > 254 THEN PSET (x, y), iter% ELSE GOTO 4
9 IF LEN(INKEY$) = 0 THEN GOTO 1

[wizardlife]

Heres a Matrix like screen saver. I cant get it down to 9 lines with the palette changing code so Ill make that optional.

Code:

1 screen 12
2 FOR k = 1 TO 33 STEP 8
3   FOR i = 1 TO 6
4     COLOR INT(RND * 15) + 1
5     LOCATE 29, (i + k - 1) * 2
6     IF k = 33 AND i = 6 THEN PRINT INT(RND * 10) ELSE PRINT INT(RND * 10);
7   NEXT
8 NEXT
9 IF INKEY$ = "" THEN GOTO 1

You could lose one line by using poke ($B800) instead of locate, colour, and print...

Oh wait, I'm retarded... you'd still need a def seg... nevermind.

[wizardlife]

Okay, here's my (tentative) entry:

Code:

1 RANDOMIZE TIMER
2 DEF SEG = &HB800
3 vars& = 40 + (12 * 256) + (2 * 65536)
4 IF PEEK(((vars& AND 255) + ((vars& \ 256 AND 255) * 80)) * 2) = 32 THEN POKE (((vars& AND 255) + ((vars& \ 256 AND 255) * 80)) * 2), 219 ELSE POKE (((vars& AND 255) + ((vars& \ 256 AND 255) * 80)) * 2), 32
5 IF (vars& \ 65536) = 0 THEN vars& = vars& - 256 ELSE IF (vars& \ 65536) = 1 THEN vars& = vars& + 1 ELSE IF (vars& \ 65536) = 2 THEN vars& = vars& + 256 ELSE vars& = vars& - 1
6 IF (vars& \ 256 AND 255) < 1 THEN vars& = vars& + (65536 + 256) ELSE IF (vars& \ 256 AND 255) > 23 THEN vars& = vars& + (65536 - 256) ELSE IF (vars& AND 255) < 1 THEN vars& = vars& + 65536 + 1 ELSE IF (vars& AND 255) > 78 THEN vars& = vars& +  65536 - 1
7 IF RND > .95 THEN vars& = vars& + 65536
8 IF vars& > 262144 THEN vars& = vars& - 262144
9 IF INKEY$ = "" THEN GOTO 4 'edit d'oh!

Only as interesting as snake savers get... you may have to slow it down a little. I couldn't think of a really foolproof way to do a delay in one line. I could drop the randomize timer and make it square root 79 every cycle or something... but that'd be different on everyone's machine. No colour, couldn't fit it in.

edit: notepad pulled a wierd line-wrap thing on me.

edit 2: I renumbered the lines just before I saved and it threw off the GOTO. (After twenty minutes of debugging, do I ever feel sheepish...)

[toonski84]

Code:

1 SCREEN 13
2 FOR x = 0 TO ATN(1) * 8 STEP ATN(1) / 2
3 LINE (160 + COS(a - x) * 70, 100 + SIN(a - x) * 70)-(160 + COS(ATN(1) * 2 + x) * 70, 100 + SIN(ATN(1) * 2 + x) * 70), c MOD 8
4 LINE (160 + COS(a - x) * 50, 100 + SIN(a - x) * 50)-(160 + COS(ATN(1) * 2 + x) * 50, 100 + SIN(ATN(1) * 2 + x) * 50), a MOD 8
5 c = (c + 1) MOD 16
6 a = a - ATN(1) / 90
7 PSET (COS(RND * ATN(1) * 8) * (RND * 30 + 70) + 160, SIN(RND * ATN(1) * 8) * (RND * 30 + 70) + 100), RND * 255
8 NEXT x
9 GOTO 2

seizure-vision. at least on my xp1800. lemme know how it flies on slower cpus.

[Agamemnus]

[relsoft]

Okay Here's my translucen plasma....

Code:

'Here's my entry(translucent Plasma!!!)
'I could have made this a lil bit smaller.
'Relsoft
'Note: you may not notice a thing in about 20 secs as its setting
'up the palette.

1 SCREEN 13     ': FOR I = 0 TO 255: LINE (I, 0)-(I, 10), I: NEXT I'Unrem to see the Pal
2 J& = (J& + 1) AND &H7FFFFFFF
3 IF J& < 257 THEN PALETTE J& - 1, 65536 * INT(32 - 31 * SIN(J& * 3.14151693# / 128)) + 256 * INT(32 - 31 * SIN(J& * 3.14151693# / 64)) + INT(32 - 31 * SIN(J& * 3.14151693# / 32)) ELSE R% = 64
4    FOR y% = 0 TO 100
5    FOR x% = 0 TO 160
6            R% = -R%
7            IF J& > 256 THEN PSET (x% + 80, y% + 50), (SIN((x% + R%) / (28)) * 32) + (SIN((x% + R% + (J& MOD 284)) / (45)) * -128) + (SIN((y% + R%) / (32)) * 64)
8   NEXT x%, y%
9   IF INKEY$ = "" THEN 2

Could have made this better but ran out of time....

;*)

PS. Antoni: Post as many as you want!!!!

[Antoni Gual]

Rel: Your saver is the winner! Wow!..

Here is another one. Sorry for the lack of color...

Code:

1 DEF SEG = &HB800
2 FOR i% = 0 TO 159 STEP 4
'  adjust this speed constant for optimal effect
'             |    0 no speed ;) .05 should be too fast even for a 386
'             |
3  IF RND < .0005 THEN j% = 3840 ELSE j% = -1
4  IF j% > 0 THEN POKE j% + i%, PEEK(j% - 160 + i%)
5  IF j% > 0 THEN j% = j% - 160
6  IF j% > 0 THEN GOTO 4
7  IF j% = 0 THEN IF RND > .3 THEN POKE i%, 96 * RND + 32 ELSE POKE i%, 32
8 NEXT
9 IF LEN(INKEY$) = 0 THEN GOTO 2

[BlueKeyboard]

First screen 12 ASCII circle routine? :lol:.

Code:

SCREEN 12
FOR C% = 64 TO 76
FOR R% = 0 TO 14
FOR I% = 1 TO 360
COLOR R%: LOCATE 15 + INT(SIN(I% * 3.1415 / 180) * R%), 40 + INT(COS(I% * 3.1415 / 180) * R%): PRINT CHR$(C% + R%)
NEXT
NEXT
WAIT &H3DA, 8
NEXT

[wizardlife]

wizardlife, is your whole screensaver a box in the center?

Wasn't intended to be. Hang on.

edit: Hmm... it worked last night. Gimme another minute.

edit 2: done. Point the GOTO to line 4 instead of 3. I added the Randomize Timer at the last minute and it threw off the line numbers.