Home » Recent acquisitions » Acorn ADFS disks » adfs_ArchimedesWorld_199201.adf » January92 » !AWJan92/Goodies/ArcAut/Automatons/Critter
!AWJan92/Goodies/ArcAut/Automatons/Critter
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Recent acquisitions » Acorn ADFS disks » adfs_ArchimedesWorld_199201.adf » January92 |
| Filename: | !AWJan92/Goodies/ArcAut/Automatons/Critter |
| Read OK: | ✔ |
| File size: | 03BB bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
AUTOMATON*
Critter
A two state automaton in which most cells reverse their state with each
generations (this can lead to a painful flashing display, hence the subdued
colours). From a random blob of mixed states on a plain background, strange
four cell 'critters' mysteriously appear, wander across the display, & then
fall back into the oblivion from which they came. This uses the margolus
neighbourhood. Try 253x14 & other small windows.
INITIALISATION*
10DEF PROCdo
20*SetEval wrap on
30*SetEval neig margolus
40*SetEval i 10
50ENDPROC
SCREEN*
10DEF PROCdo
20DIM buf% 256:SYS "OS_ReadVarVal","i",buf%,256
30c%=FNacol(!buf%)
40GCOL c%AND63 TINT c%
50FOR Q%=1 TO 200
60POINT RND(80)-40,RND(80)-40
70NEXT
80ENDPROC
CODE*
( READ_NEIG
<i> SCOUNT_ALL
DUP 0 = IF (CELL <i> EOR ==)
DUP 1 = IF (CELL <i> EOR ==)
DUP 2 = IF (CELL ==)
3 = IF (OPP <i> EOR ==)
CELL <i> EOR == )
END* 00000000 41 55 54 4f 4d 41 54 4f 4e 2a 0a 0a 20 20 43 72 |AUTOMATON*.. Cr| 00000010 69 74 74 65 72 0a 0a 20 20 41 20 74 77 6f 20 73 |itter.. A two s| 00000020 74 61 74 65 20 61 75 74 6f 6d 61 74 6f 6e 20 69 |tate automaton i| 00000030 6e 20 77 68 69 63 68 20 6d 6f 73 74 20 63 65 6c |n which most cel| 00000040 6c 73 20 72 65 76 65 72 73 65 20 74 68 65 69 72 |ls reverse their| 00000050 20 73 74 61 74 65 20 77 69 74 68 20 65 61 63 68 | state with each| 00000060 0a 20 20 67 65 6e 65 72 61 74 69 6f 6e 73 20 28 |. generations (| 00000070 74 68 69 73 20 63 61 6e 20 6c 65 61 64 20 74 6f |this can lead to| 00000080 20 61 20 70 61 69 6e 66 75 6c 20 66 6c 61 73 68 | a painful flash| 00000090 69 6e 67 20 64 69 73 70 6c 61 79 2c 20 68 65 6e |ing display, hen| 000000a0 63 65 20 74 68 65 20 73 75 62 64 75 65 64 0a 20 |ce the subdued. | 000000b0 20 63 6f 6c 6f 75 72 73 29 2e 20 46 72 6f 6d 20 | colours). From | 000000c0 61 20 72 61 6e 64 6f 6d 20 62 6c 6f 62 20 6f 66 |a random blob of| 000000d0 20 6d 69 78 65 64 20 73 74 61 74 65 73 20 6f 6e | mixed states on| 000000e0 20 61 20 70 6c 61 69 6e 20 62 61 63 6b 67 72 6f | a plain backgro| 000000f0 75 6e 64 2c 20 73 74 72 61 6e 67 65 0a 20 20 66 |und, strange. f| 00000100 6f 75 72 20 63 65 6c 6c 20 27 63 72 69 74 74 65 |our cell 'critte| 00000110 72 73 27 20 6d 79 73 74 65 72 69 6f 75 73 6c 79 |rs' mysteriously| 00000120 20 61 70 70 65 61 72 2c 20 77 61 6e 64 65 72 20 | appear, wander | 00000130 61 63 72 6f 73 73 20 74 68 65 20 64 69 73 70 6c |across the displ| 00000140 61 79 2c 20 26 20 74 68 65 6e 0a 20 20 66 61 6c |ay, & then. fal| 00000150 6c 20 62 61 63 6b 20 69 6e 74 6f 20 74 68 65 20 |l back into the | 00000160 6f 62 6c 69 76 69 6f 6e 20 66 72 6f 6d 20 77 68 |oblivion from wh| 00000170 69 63 68 20 74 68 65 79 20 63 61 6d 65 2e 20 54 |ich they came. T| 00000180 68 69 73 20 75 73 65 73 20 74 68 65 20 6d 61 72 |his uses the mar| 00000190 67 6f 6c 75 73 0a 20 20 6e 65 69 67 68 62 6f 75 |golus. neighbou| 000001a0 72 68 6f 6f 64 2e 20 54 72 79 20 32 35 33 78 31 |rhood. Try 253x1| 000001b0 34 20 26 20 6f 74 68 65 72 20 73 6d 61 6c 6c 20 |4 & other small | 000001c0 77 69 6e 64 6f 77 73 2e 0a 0a 49 4e 49 54 49 41 |windows...INITIA| 000001d0 4c 49 53 41 54 49 4f 4e 2a 0a 0a 20 20 31 30 44 |LISATION*.. 10D| 000001e0 45 46 20 50 52 4f 43 64 6f 0a 20 20 32 30 2a 53 |EF PROCdo. 20*S| 000001f0 65 74 45 76 61 6c 20 77 72 61 70 20 6f 6e 0a 20 |etEval wrap on. | 00000200 20 33 30 2a 53 65 74 45 76 61 6c 20 6e 65 69 67 | 30*SetEval neig| 00000210 20 6d 61 72 67 6f 6c 75 73 0a 20 20 34 30 2a 53 | margolus. 40*S| 00000220 65 74 45 76 61 6c 20 69 20 31 30 0a 20 20 35 30 |etEval i 10. 50| 00000230 45 4e 44 50 52 4f 43 0a 0a 53 43 52 45 45 4e 2a |ENDPROC..SCREEN*| 00000240 0a 0a 20 20 31 30 44 45 46 20 50 52 4f 43 64 6f |.. 10DEF PROCdo| 00000250 20 20 20 0a 20 20 32 30 44 49 4d 20 62 75 66 25 | . 20DIM buf%| 00000260 20 32 35 36 3a 53 59 53 20 22 4f 53 5f 52 65 61 | 256:SYS "OS_Rea| 00000270 64 56 61 72 56 61 6c 22 2c 22 69 22 2c 62 75 66 |dVarVal","i",buf| 00000280 25 2c 32 35 36 0a 20 20 33 30 63 25 3d 46 4e 61 |%,256. 30c%=FNa| 00000290 63 6f 6c 28 21 62 75 66 25 29 0a 20 20 34 30 47 |col(!buf%). 40G| 000002a0 43 4f 4c 20 63 25 41 4e 44 36 33 20 54 49 4e 54 |COL c%AND63 TINT| 000002b0 20 63 25 0a 20 20 35 30 46 4f 52 20 51 25 3d 31 | c%. 50FOR Q%=1| 000002c0 20 54 4f 20 32 30 30 0a 20 20 36 30 50 4f 49 4e | TO 200. 60POIN| 000002d0 54 20 52 4e 44 28 38 30 29 2d 34 30 2c 52 4e 44 |T RND(80)-40,RND| 000002e0 28 38 30 29 2d 34 30 0a 20 20 37 30 4e 45 58 54 |(80)-40. 70NEXT| 000002f0 0a 20 20 38 30 45 4e 44 50 52 4f 43 0a 0a 43 4f |. 80ENDPROC..CO| 00000300 44 45 2a 0a 0a 28 20 52 45 41 44 5f 4e 45 49 47 |DE*..( READ_NEIG| 00000310 0a 20 20 3c 69 3e 20 53 43 4f 55 4e 54 5f 41 4c |. <i> SCOUNT_AL| 00000320 4c 0a 20 20 44 55 50 20 30 20 3d 20 49 46 20 28 |L. DUP 0 = IF (| 00000330 43 45 4c 4c 20 3c 69 3e 20 45 4f 52 20 3d 3d 29 |CELL <i> EOR ==)| 00000340 0a 20 20 44 55 50 20 31 20 3d 20 49 46 20 28 43 |. DUP 1 = IF (C| 00000350 45 4c 4c 20 3c 69 3e 20 45 4f 52 20 3d 3d 29 0a |ELL <i> EOR ==).| 00000360 20 20 44 55 50 20 32 20 3d 20 49 46 20 28 43 45 | DUP 2 = IF (CE| 00000370 4c 4c 20 3d 3d 29 0a 20 20 20 20 20 20 33 20 3d |LL ==). 3 =| 00000380 20 49 46 20 28 4f 50 50 20 3c 69 3e 20 45 4f 52 | IF (OPP <i> EOR| 00000390 20 3d 3d 29 0a 20 20 20 20 20 20 20 20 20 20 20 | ==). | 000003a0 20 20 20 43 45 4c 4c 20 3c 69 3e 20 45 4f 52 20 | CELL <i> EOR | 000003b0 3d 3d 20 20 29 0a 0a 45 4e 44 2a |== )..END*| 000003bb
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