Home » Archimedes archive » Acorn User » AU 1997-09 B.adf » Regulars » StarInfo/Stoner/PlasBall

StarInfo/Stoner/PlasBall

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 1997-09 B.adf » Regulars
Filename: StarInfo/Stoner/PlasBall
Read OK:
File size: 068F bytes
Load address: 0000
Exec address: 0000
File contents
    1REM  3D Plasma Ball
    2REM by Nigel Stoner
    3REM (I Finally did it !!)
    4ON ERROR MODE12:REPORT:PRINT " at line ";ERL:END
    5
    6PROCinit
    7REPEAT SYS 6,112,s%:s%=s%EOR3:SYS6,113,s%:WAIT:CLS:PROCrotate:PROCsort:PROCdraw:UNTIL FALSE
    8END
    9
   10
   11DEFPROCinit
   12MODE 9+128:ORIGIN640,512:OFF:PROCcolors
   13DIM lx(99),ly(99),lz(99),depth(1024),dh%(99),dv%(99):s%=1:lines%=19:spd%=8:spike%=32
   14FOR a%=-512 TO 512:depth(a%+512) = 1/((a%/720)+1):NEXT:hsp%=spd%/2:hspk%=spike%/2
   15FOR a%=0 TO lines%:x%=380:y%=0:z%=0:yang%=RND(360):xang%=RND(360):s=SINRAD(yang%):c=COSRAD(yang%):xnew=x%*c-y%*s:ynew=x%*s+y%*c:x%=xnew:y%=ynew:s=SINRAD(xang%):c=COSRAD(xang%):znew=z%*c-y%*s:ynew=z%*s+y%*c:z%=znew:y%=ynew:lx(a%)=x%:lz(a%)=y%:ly(a%)=z%
   16dh%(a%)=RND(spd%)-hsp%:dv%(a%)=RND(spd%)-hsp%:NEXT
   17ENDPROC
   18
   19DEFPROCrotate
   20FOR vtx%= 0 TO lines%:IF RND(1)>.95 dh%(vtx%)=RND(spd%)-hsp%:dv%(vtx%)=RND(spd%)-hsp%
   21c=COSRAD(dh%(vtx%)):s=SINRAD(dh%(vtx%)):xnew=lx(vtx%)*c-lz(vtx%)*s:znew=lx(vtx%)*s+lz(vtx%)*c:lx(vtx%)=xnew:lz(vtx%)=znew:c=COSRAD(dv%(vtx%)):s=SINRAD(dv%(vtx%)):ynew=ly(vtx%)*c-lz(vtx%)*s:znew=ly(vtx%)*s+lz(vtx%)*c:ly(vtx%)=ynew:lz(vtx%)=znew:NEXT vtx%
   22ENDPROC
   23
   24DEFPROCsort
   25FOR a%=0 TO lines%-1:IF lz(a%)<lz(a%+1) THEN SWAP lx(a%),lx(a%+1):SWAP ly(a%),ly(a%+1):SWAP lz(a%),lz(a%+1):SWAP dh%(a%),dh%(a%+1):SWAP dv%(a%),dv%(a%+1):a%=0
   26NEXT a%
   27ENDPROC
   28
   29DEFPROCdraw
   30GCOL8:CIRCLE0,0,468:half%=(lines%+1)/2:FOR a%=0 TO half%:f=depth(INT(lz(a%))+512):px%=lx(a%)*f:py%=ly(a%)*f:GCOLf*7+1:MOVEpx%/6,py%/6:DRAWpx%,py%:CIRCLEFILLpx%,py%,6:NEXT a%:GCOL0:CIRCLEFILL0,0,64
   31FOR a%=half%+1 TO lines%:f=depth(INT(lz(a%))+512):GCOL f*7+1:px%=lx(a%)*f:py%=ly(a%)*f:CIRCLEFILLpx%/6,py%/6,4:FOR b=.25 TO 1 STEP.15:y%=RND(spike%)-hspk%:x%=RND(spike%)-hspk%:DRAWpx%*b+x%,py%*b+y%:NEXTb:CIRCLEFILLpx%+x%,py%+y%,8:NEXTa%
   32ENDPROC
   33
   34DEFPROCcolors
   35FOR a%=0 TO 15 STEP 2:COLOUR a%,a%*16,a%*8,a%*15:COLOUR a%+1,a%*8,a%*4,a%*7:NEXT a%:COLOUR15,240,200,240
   36ENDPROC
�  3D Plasma Ball
� by Nigel Stoner
� (I Finally did it !!)
� � �12:�:� " at line ";�:�

	�init
A� ș 6,112,s%:s%=s%�3:ș6,113,s%:Ȗ:�:�rotate:�sort:�draw:� �
�
	



��init
� 9+128:ȑ640,512:�:�colors

V� lx(99),ly(99),lz(99),depth(1024),dh%(99),dv%(99):s%=1:lines%=19:spd%=8:spike%=32
O� a%=-512 � 512:depth(a%+512) = 1/((a%/720)+1):�:hsp%=spd%/2:hspk%=spike%/2
�� a%=0 � lines%:x%=380:y%=0:z%=0:yang%=�(360):xang%=�(360):s=��(yang%):c=��(yang%):xnew=x%*c-y%*s:ynew=x%*s+y%*c:x%=xnew:y%=ynew:s=��(xang%):c=��(xang%):znew=z%*c-y%*s:ynew=z%*s+y%*c:z%=znew:y%=ynew:lx(a%)=x%:lz(a%)=y%:ly(a%)=z%
/dh%(a%)=�(spd%)-hsp%:dv%(a%)=�(spd%)-hsp%:�
�

��rotate
O� vtx%= 0 � lines%:� �(1)>.95 dh%(vtx%)=�(spd%)-hsp%:dv%(vtx%)=�(spd%)-hsp%
�c=��(dh%(vtx%)):s=��(dh%(vtx%)):xnew=lx(vtx%)*c-lz(vtx%)*s:znew=lx(vtx%)*s+lz(vtx%)*c:lx(vtx%)=xnew:lz(vtx%)=znew:c=��(dv%(vtx%)):s=��(dv%(vtx%)):ynew=ly(vtx%)*c-lz(vtx%)*s:znew=ly(vtx%)*s+lz(vtx%)*c:ly(vtx%)=ynew:lz(vtx%)=znew:� vtx%
�


��sort
�� a%=0 � lines%-1:� lz(a%)<lz(a%+1) � Ȕ lx(a%),lx(a%+1):Ȕ ly(a%),ly(a%+1):Ȕ lz(a%),lz(a%+1):Ȕ dh%(a%),dh%(a%+1):Ȕ dv%(a%),dv%(a%+1):a%=0
� a%
�


��draw
��8:ȏ0,0,468:half%=(lines%+1)/2:� a%=0 � half%:f=depth(�(lz(a%))+512):px%=lx(a%)*f:py%=ly(a%)*f:�f*7+1:�px%/6,py%/6:�px%,py%:ȏȐpx%,py%,6:� a%:�0:ȏȐ0,0,64
�� a%=half%+1 � lines%:f=depth(�(lz(a%))+512):� f*7+1:px%=lx(a%)*f:py%=ly(a%)*f:ȏȐpx%/6,py%/6,4:� b=.25 � 1 �.15:y%=�(spike%)-hspk%:x%=�(spike%)-hspk%:�px%*b+x%,py%*b+y%:�b:ȏȐpx%+x%,py%+y%,8:�a%
 �
!
"��colors
#T� a%=0 � 15 � 2:� a%,a%*16,a%*8,a%*15:� a%+1,a%*8,a%*4,a%*7:� a%:�15,240,200,240
$�
�
00000000  0d 00 01 15 f4 20 20 33  44 20 50 6c 61 73 6d 61  |.....  3D Plasma|
00000010  20 42 61 6c 6c 0d 00 02  15 f4 20 62 79 20 4e 69  | Ball..... by Ni|
00000020  67 65 6c 20 53 74 6f 6e  65 72 0d 00 03 1b f4 20  |gel Stoner..... |
00000030  28 49 20 46 69 6e 61 6c  6c 79 20 64 69 64 20 69  |(I Finally did i|
00000040  74 20 21 21 29 0d 00 04  1f ee 20 85 20 eb 31 32  |t !!)..... . .12|
00000050  3a f6 3a f1 20 22 20 61  74 20 6c 69 6e 65 20 22  |:.:. " at line "|
00000060  3b 9e 3a e0 0d 00 05 04  0d 00 06 09 f2 69 6e 69  |;.:..........ini|
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000000b0  20 a3 0d 00 08 05 e0 0d  00 09 04 0d 00 0a 04 0d  | ...............|
000000c0  00 0b 0a dd f2 69 6e 69  74 0d 00 0c 1f eb 20 39  |.....init..... 9|
000000d0  2b 31 32 38 3a c8 91 36  34 30 2c 35 31 32 3a 87  |+128:..640,512:.|
000000e0  3a f2 63 6f 6c 6f 72 73  0d 00 0d 56 de 20 6c 78  |:.colors...V. lx|
000000f0  28 39 39 29 2c 6c 79 28  39 39 29 2c 6c 7a 28 39  |(99),ly(99),lz(9|
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00000110  68 25 28 39 39 29 2c 64  76 25 28 39 39 29 3a 73  |h%(99),dv%(99):s|
00000120  25 3d 31 3a 6c 69 6e 65  73 25 3d 31 39 3a 73 70  |%=1:lines%=19:sp|
00000130  64 25 3d 38 3a 73 70 69  6b 65 25 3d 33 32 0d 00  |d%=8:spike%=32..|
00000140  0e 4f e3 20 61 25 3d 2d  35 31 32 20 b8 20 35 31  |.O. a%=-512 . 51|
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00000160  3d 20 31 2f 28 28 61 25  2f 37 32 30 29 2b 31 29  |= 1/((a%/720)+1)|
00000170  3a ed 3a 68 73 70 25 3d  73 70 64 25 2f 32 3a 68  |:.:hsp%=spd%/2:h|
00000180  73 70 6b 25 3d 73 70 69  6b 65 25 2f 32 0d 00 0f  |spk%=spike%/2...|
00000190  e8 e3 20 61 25 3d 30 20  b8 20 6c 69 6e 65 73 25  |.. a%=0 . lines%|
000001a0  3a 78 25 3d 33 38 30 3a  79 25 3d 30 3a 7a 25 3d  |:x%=380:y%=0:z%=|
000001b0  30 3a 79 61 6e 67 25 3d  b3 28 33 36 30 29 3a 78  |0:yang%=.(360):x|
000001c0  61 6e 67 25 3d b3 28 33  36 30 29 3a 73 3d b5 b2  |ang%=.(360):s=..|
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00000200  63 3a 78 25 3d 78 6e 65  77 3a 79 25 3d 79 6e 65  |c:x%=xnew:y%=yne|
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00000250  79 25 3d 79 6e 65 77 3a  6c 78 28 61 25 29 3d 78  |y%=ynew:lx(a%)=x|
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0000068f