Home » Archimedes archive » Acorn User » AU 1994-Xmas.adf » Programs » StarInfo/December/Van/POPJUL

StarInfo/December/Van/POPJUL

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 » Archimedes archive » Acorn User » AU 1994-Xmas.adf » Programs
Filename: StarInfo/December/Van/POPJUL
Read OK:
File size: 035C bytes
Load address: 0000
Exec address: 0000
File contents
   10REM >POPJUL
   20REM JEAN VAN MOURIK MILLCOTTAGE DERWYDD AMMANFORD DYFED SA183LQ  U.K.
   50MODE9:OFF:C%=4:ORIGIN640,512:C=RAD90:D=.00001
   60FORX=0TO15:READ R,G,B:COLOURX,R,G,B:NEXT
   70PRINT"                  POPCORNJULIA"
   90REM IMAGE VARIABLES
  100width=1.65:height=1.65:X=width/640:Y=height/512:M%=200
  110f=.06:g=.08:REM INPUT "VALUE OF CONSTANT f (DEFAULT .06)";f:IF f=0 f=.06
  120REM INPUT "VALUE OF CONSTANT g (DEFAULT .08)";g:IF g=0 g=.08
  130PRINT"f= ";f:PRINT"g= ";g
  140:
  150REM MAIN LOOP
  160FORX%=-640TO0STEPC%:FORY%=-512TO512STEPC%:x=X*X%:y=Y*Y%
  170FORN%=0TOM%:z=x-f*SIN(y+TANy):y=y-g*SIN(x+TANx):x=z:IF x*x+y*y<3NEXT:N%=-1
  175z=x-f*SIN(y+TANy):y=y-g*SIN(x+TANx):x=z:IF x*x+y*y<3 NEXT
  180GCOLN%MOD15+1:POINT X%,Y%:POINT -X%,-Y%:NEXTY%:NEXT:END
  190 
  280DATA 0,0,0,192,0,240,144,48,240,96,96,240,48,144,240,0,192,240,0,240,192,48,240,144,96,240,96,144,240,48,192,240,0,240,192,0,240,144,48,240,96,96,240,48,144,240,0,192
 1700FOR N%=0TOM%:IF ABS(ABSx-C)<D OR ABS(ABSy-C)<D NEXTY%,


� >POPJUL
G� JEAN VAN MOURIK MILLCOTTAGE DERWYDD AMMANFORD DYFED SA183LQ  U.K.
2&�9:�:C%=4:ȑ640,512:C=�90:D=.00001
<�X=0�15:� R,G,B:�X,R,G,B:�
F%�"                  POPCORNJULIA"
Z� IMAGE VARIABLES
d:width=1.65:height=1.65:X=width/640:Y=height/512:M%=200
nJf=.06:g=.08:� INPUT "VALUE OF CONSTANT f (DEFAULT .06)";f:IF f=0 f=.06
x>� INPUT "VALUE OF CONSTANT g (DEFAULT .08)";g:IF g=0 g=.08
��"f= ";f:�"g= ";g
�:
�� MAIN LOOP
�/�X%=-640�0�C%:�Y%=-512�512�C%:x=X*X%:y=Y*Y%
�?�N%=0�M%:z=x-f*�(y+�y):y=y-g*�(x+�x):x=z:� x*x+y*y<3�:N%=-1
�1z=x-f*�(y+�y):y=y-g*�(x+�x):x=z:� x*x+y*y<3 �
�(�N%�15+1:Ȓ X%,Y%:Ȓ -X%,-Y%:�Y%:�:�
� 
�� 0,0,0,192,0,240,144,48,240,96,96,240,48,144,240,0,192,240,0,240,192,48,240,144,96,240,96,144,240,48,192,240,0,240,192,0,240,144,48,240,96,96,240,48,144,240,0,192
�*� N%=0�M%:� �(�x-C)<D � �(�y-C)<D �Y%,
�
00000000  0d 00 0a 0d f4 20 3e 50  4f 50 4a 55 4c 0d 00 14  |..... >POPJUL...|
00000010  47 f4 20 4a 45 41 4e 20  56 41 4e 20 4d 4f 55 52  |G. JEAN VAN MOUR|
00000020  49 4b 20 4d 49 4c 4c 43  4f 54 54 41 47 45 20 44  |IK MILLCOTTAGE D|
00000030  45 52 57 59 44 44 20 41  4d 4d 41 4e 46 4f 52 44  |ERWYDD AMMANFORD|
00000040  20 44 59 46 45 44 20 53  41 31 38 33 4c 51 20 20  | DYFED SA183LQ  |
00000050  55 2e 4b 2e 0d 00 32 26  eb 39 3a 87 3a 43 25 3d  |U.K...2&.9:.:C%=|
00000060  34 3a c8 91 36 34 30 2c  35 31 32 3a 43 3d b2 39  |4:..640,512:C=.9|
00000070  30 3a 44 3d 2e 30 30 30  30 31 0d 00 3c 1e e3 58  |0:D=.00001..<..X|
00000080  3d 30 b8 31 35 3a f3 20  52 2c 47 2c 42 3a fb 58  |=0.15:. R,G,B:.X|
00000090  2c 52 2c 47 2c 42 3a ed  0d 00 46 25 f1 22 20 20  |,R,G,B:...F%."  |
000000a0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000000b0  50 4f 50 43 4f 52 4e 4a  55 4c 49 41 22 0d 00 5a  |POPCORNJULIA"..Z|
000000c0  15 f4 20 49 4d 41 47 45  20 56 41 52 49 41 42 4c  |.. IMAGE VARIABL|
000000d0  45 53 0d 00 64 3a 77 69  64 74 68 3d 31 2e 36 35  |ES..d:width=1.65|
000000e0  3a 68 65 69 67 68 74 3d  31 2e 36 35 3a 58 3d 77  |:height=1.65:X=w|
000000f0  69 64 74 68 2f 36 34 30  3a 59 3d 68 65 69 67 68  |idth/640:Y=heigh|
00000100  74 2f 35 31 32 3a 4d 25  3d 32 30 30 0d 00 6e 4a  |t/512:M%=200..nJ|
00000110  66 3d 2e 30 36 3a 67 3d  2e 30 38 3a f4 20 49 4e  |f=.06:g=.08:. IN|
00000120  50 55 54 20 22 56 41 4c  55 45 20 4f 46 20 43 4f  |PUT "VALUE OF CO|
00000130  4e 53 54 41 4e 54 20 66  20 28 44 45 46 41 55 4c  |NSTANT f (DEFAUL|
00000140  54 20 2e 30 36 29 22 3b  66 3a 49 46 20 66 3d 30  |T .06)";f:IF f=0|
00000150  20 66 3d 2e 30 36 0d 00  78 3e f4 20 49 4e 50 55  | f=.06..x>. INPU|
00000160  54 20 22 56 41 4c 55 45  20 4f 46 20 43 4f 4e 53  |T "VALUE OF CONS|
00000170  54 41 4e 54 20 67 20 28  44 45 46 41 55 4c 54 20  |TANT g (DEFAULT |
00000180  2e 30 38 29 22 3b 67 3a  49 46 20 67 3d 30 20 67  |.08)";g:IF g=0 g|
00000190  3d 2e 30 38 0d 00 82 15  f1 22 66 3d 20 22 3b 66  |=.08....."f= ";f|
000001a0  3a f1 22 67 3d 20 22 3b  67 0d 00 8c 05 3a 0d 00  |:."g= ";g....:..|
000001b0  96 0f f4 20 4d 41 49 4e  20 4c 4f 4f 50 0d 00 a0  |... MAIN LOOP...|
000001c0  2f e3 58 25 3d 2d 36 34  30 b8 30 88 43 25 3a e3  |/.X%=-640.0.C%:.|
000001d0  59 25 3d 2d 35 31 32 b8  35 31 32 88 43 25 3a 78  |Y%=-512.512.C%:x|
000001e0  3d 58 2a 58 25 3a 79 3d  59 2a 59 25 0d 00 aa 3f  |=X*X%:y=Y*Y%...?|
000001f0  e3 4e 25 3d 30 b8 4d 25  3a 7a 3d 78 2d 66 2a b5  |.N%=0.M%:z=x-f*.|
00000200  28 79 2b b7 79 29 3a 79  3d 79 2d 67 2a b5 28 78  |(y+.y):y=y-g*.(x|
00000210  2b b7 78 29 3a 78 3d 7a  3a e7 20 78 2a 78 2b 79  |+.x):x=z:. x*x+y|
00000220  2a 79 3c 33 ed 3a 4e 25  3d 2d 31 0d 00 af 31 7a  |*y<3.:N%=-1...1z|
00000230  3d 78 2d 66 2a b5 28 79  2b b7 79 29 3a 79 3d 79  |=x-f*.(y+.y):y=y|
00000240  2d 67 2a b5 28 78 2b b7  78 29 3a 78 3d 7a 3a e7  |-g*.(x+.x):x=z:.|
00000250  20 78 2a 78 2b 79 2a 79  3c 33 20 ed 0d 00 b4 28  | x*x+y*y<3 ....(|
00000260  e6 4e 25 83 31 35 2b 31  3a c8 92 20 58 25 2c 59  |.N%.15+1:.. X%,Y|
00000270  25 3a c8 92 20 2d 58 25  2c 2d 59 25 3a ed 59 25  |%:.. -X%,-Y%:.Y%|
00000280  3a ed 3a e0 0d 00 be 05  20 0d 01 18 a7 dc 20 30  |:.:..... ..... 0|
00000290  2c 30 2c 30 2c 31 39 32  2c 30 2c 32 34 30 2c 31  |,0,0,192,0,240,1|
000002a0  34 34 2c 34 38 2c 32 34  30 2c 39 36 2c 39 36 2c  |44,48,240,96,96,|
000002b0  32 34 30 2c 34 38 2c 31  34 34 2c 32 34 30 2c 30  |240,48,144,240,0|
000002c0  2c 31 39 32 2c 32 34 30  2c 30 2c 32 34 30 2c 31  |,192,240,0,240,1|
000002d0  39 32 2c 34 38 2c 32 34  30 2c 31 34 34 2c 39 36  |92,48,240,144,96|
000002e0  2c 32 34 30 2c 39 36 2c  31 34 34 2c 32 34 30 2c  |,240,96,144,240,|
000002f0  34 38 2c 31 39 32 2c 32  34 30 2c 30 2c 32 34 30  |48,192,240,0,240|
00000300  2c 31 39 32 2c 30 2c 32  34 30 2c 31 34 34 2c 34  |,192,0,240,144,4|
00000310  38 2c 32 34 30 2c 39 36  2c 39 36 2c 32 34 30 2c  |8,240,96,96,240,|
00000320  34 38 2c 31 34 34 2c 32  34 30 2c 30 2c 31 39 32  |48,144,240,0,192|
00000330  0d 06 a4 2a e3 20 4e 25  3d 30 b8 4d 25 3a e7 20  |...*. N%=0.M%:. |
00000340  94 28 94 78 2d 43 29 3c  44 20 84 20 94 28 94 79  |.(.x-C)<D . .(.y|
00000350  2d 43 29 3c 44 20 ed 59  25 2c 0d ff              |-C)<D .Y%,..|
0000035c