Home » Archimedes archive » Acorn User » AU 1997-02 B.adf » Regulars » StarInfo/MarkA/Slippery!

StarInfo/MarkA/Slippery!

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 1997-02 B.adf » Regulars
Filename: StarInfo/MarkA/Slippery!
Read OK:
File size: 03EE bytes
Load address: 0000
Exec address: 0000
File contents
   10
   20ON ERROR PRINTERL:REPORT:END
   30
   40MODE 12
   50CCS=2
   60XP=0
   70YP=0
   80X=640
   90Y=512
  100SR=0
  110SG=0
  120SB=0
  130ER=RND(255)
  140EG=RND(255)
  150EB=RND(255)
  160CIRC=1
  170REPEAT
  180MOUSE NULLI,NULLUS,MB
  190IF MB=0 THEN
  200X=X+XP*5
  210Y=Y+YP*5
  220XP=XP+((RND(5)/5)*SGN(RND))
  230IF XP>5 XP=5
  240IF XP<-5 XP=-5
  250YP=YP+((RND(5)/4)*SGN(RND))
  260IF YP>5 YP=5
  270IF YP<-5 YP=-5
  280IF X>1180 OR X<100 XP=-XP:YP=YP+(RND(2)*SGN(RND)/10)
  290IF Y>924 OR Y<100 YP=-YP:XP=XP+(RND(2)*SGN(RND)/10)
  300B=SGN(RND(10)-1)*4*CIRC
  310ELSE
  320B=MB
  330X=NULLI
  340Y=NULLUS
  350ENDIF
  360:
  370RECTANGLE X,Y,1280-X,1024-Y TO X+4,Y+4
  380RECTANGLE 0,Y,X,1024-Y TO -4,Y+4
  390RECTANGLE X,0,1280-X,Y TO X+4,-4
  400RECTANGLE 0,0,X,Y TO -4,-4
  410:
  420
  430ER+=SGN(RND)*CCS
  440IF ER>255 THEN ER=255
  450IF ER<0 THEN ER=0
  460EG+=SGN(RND)*CCS
  470IF EG>255 THEN EG=255
  480IF EG<0 THEN EG=0
  490EB+=SGN(RND)*CCS
  500IF EB>255 THEN EB=255
  510IF EB<0 THEN EB=0
  520RO=(ER-SR)/15
  530GO=(EG-SG)/15
  540BO=(EB-SB)/15
  550FOR L = 1 TO 15
  560COLOUR L,SR+RO*L,SG+GO*L,SB+BO*L
  570NEXT L
  580:
  590IF B=4 AND RND(15)=1 THEN
  600FOR L = 15 TO 1 STEP -1
  610GCOL L
  620CIRCLEFILL X,Y,L*3
  630NEXT L
  640ENDIF
  650:
  660IF INKEY-99 THEN CIRC=1-CIRC:REPEAT UNTIL NOT INKEY-99
  670UNTIL FALSE


� � �:�:�

(� 12
2	CCS=2
<XP=0
FYP=0
P	X=640
Z	Y=512
dSR=0
nSG=0
xSB=0
�
ER=�(255)
�
EG=�(255)
�
EB=�(255)
�
CIRC=1
��
�ȗ NULLI,NULLUS,MB
�� MB=0 �
�X=X+XP*5
�Y=Y+YP*5
�XP=XP+((�(5)/5)*�(�))
�� XP>5 XP=5
�� XP<-5 XP=-5
�YP=YP+((�(5)/4)*�(�))
� YP>5 YP=5
� YP<-5 YP=-5
0� X>1180 � X<100 XP=-XP:YP=YP+(�(2)*�(�)/10)
"/� Y>924 � Y<100 YP=-YP:XP=XP+(�(2)*�(�)/10)
,B=�(�(10)-1)*4*CIRC
6�
@B=MB
JX=NULLI
TY=NULLUS
^�
h:
r"ȓ X,Y,1280-X,1024-Y � X+4,Y+4
|ȓ 0,Y,X,1024-Y � -4,Y+4
�ȓ X,0,1280-X,Y � X+4,-4
�ȓ 0,0,X,Y � -4,-4
�:
�
�ER+=�(�)*CCS
�� ER>255 � ER=255
�� ER<0 � ER=0
�EG+=�(�)*CCS
�� EG>255 � EG=255
�� EG<0 � EG=0
�EB+=�(�)*CCS
�� EB>255 � EB=255
�� EB<0 � EB=0
RO=(ER-SR)/15
GO=(EG-SG)/15
BO=(EB-SB)/15
&� L = 1 � 15
0� L,SR+RO*L,SG+GO*L,SB+BO*L
:� L
D:
N� B=4 � �(15)=1 �
X� L = 15 � 1 � -1
b� L
lȏȐ X,Y,L*3
v� L
��
�:
�#� �-99 � CIRC=1-CIRC:� � � �-99
�� �
�
00000000  0d 00 0a 04 0d 00 14 0e  ee 20 85 20 f1 9e 3a f6  |......... . ..:.|
00000010  3a e0 0d 00 1e 04 0d 00  28 08 eb 20 31 32 0d 00  |:.......(.. 12..|
00000020  32 09 43 43 53 3d 32 0d  00 3c 08 58 50 3d 30 0d  |2.CCS=2..<.XP=0.|
00000030  00 46 08 59 50 3d 30 0d  00 50 09 58 3d 36 34 30  |.F.YP=0..P.X=640|
00000040  0d 00 5a 09 59 3d 35 31  32 0d 00 64 08 53 52 3d  |..Z.Y=512..d.SR=|
00000050  30 0d 00 6e 08 53 47 3d  30 0d 00 78 08 53 42 3d  |0..n.SG=0..x.SB=|
00000060  30 0d 00 82 0d 45 52 3d  b3 28 32 35 35 29 0d 00  |0....ER=.(255)..|
00000070  8c 0d 45 47 3d b3 28 32  35 35 29 0d 00 96 0d 45  |..EG=.(255)....E|
00000080  42 3d b3 28 32 35 35 29  0d 00 a0 0a 43 49 52 43  |B=.(255)....CIRC|
00000090  3d 31 0d 00 aa 05 f5 0d  00 b4 16 c8 97 20 4e 55  |=1........... NU|
000000a0  4c 4c 49 2c 4e 55 4c 4c  55 53 2c 4d 42 0d 00 be  |LLI,NULLUS,MB...|
000000b0  0c e7 20 4d 42 3d 30 20  8c 0d 00 c8 0c 58 3d 58  |.. MB=0 .....X=X|
000000c0  2b 58 50 2a 35 0d 00 d2  0c 59 3d 59 2b 59 50 2a  |+XP*5....Y=Y+YP*|
000000d0  35 0d 00 dc 19 58 50 3d  58 50 2b 28 28 b3 28 35  |5....XP=XP+((.(5|
000000e0  29 2f 35 29 2a b4 28 b3  29 29 0d 00 e6 0f e7 20  |)/5)*.(.))..... |
000000f0  58 50 3e 35 20 58 50 3d  35 0d 00 f0 11 e7 20 58  |XP>5 XP=5..... X|
00000100  50 3c 2d 35 20 58 50 3d  2d 35 0d 00 fa 19 59 50  |P<-5 XP=-5....YP|
00000110  3d 59 50 2b 28 28 b3 28  35 29 2f 34 29 2a b4 28  |=YP+((.(5)/4)*.(|
00000120  b3 29 29 0d 01 04 0f e7  20 59 50 3e 35 20 59 50  |.))..... YP>5 YP|
00000130  3d 35 0d 01 0e 11 e7 20  59 50 3c 2d 35 20 59 50  |=5..... YP<-5 YP|
00000140  3d 2d 35 0d 01 18 30 e7  20 58 3e 31 31 38 30 20  |=-5...0. X>1180 |
00000150  84 20 58 3c 31 30 30 20  58 50 3d 2d 58 50 3a 59  |. X<100 XP=-XP:Y|
00000160  50 3d 59 50 2b 28 b3 28  32 29 2a b4 28 b3 29 2f  |P=YP+(.(2)*.(.)/|
00000170  31 30 29 0d 01 22 2f e7  20 59 3e 39 32 34 20 84  |10).."/. Y>924 .|
00000180  20 59 3c 31 30 30 20 59  50 3d 2d 59 50 3a 58 50  | Y<100 YP=-YP:XP|
00000190  3d 58 50 2b 28 b3 28 32  29 2a b4 28 b3 29 2f 31  |=XP+(.(2)*.(.)/1|
000001a0  30 29 0d 01 2c 17 42 3d  b4 28 b3 28 31 30 29 2d  |0)..,.B=.(.(10)-|
000001b0  31 29 2a 34 2a 43 49 52  43 0d 01 36 05 cc 0d 01  |1)*4*CIRC..6....|
000001c0  40 08 42 3d 4d 42 0d 01  4a 0b 58 3d 4e 55 4c 4c  |@.B=MB..J.X=NULL|
000001d0  49 0d 01 54 0c 59 3d 4e  55 4c 4c 55 53 0d 01 5e  |I..T.Y=NULLUS..^|
000001e0  05 cd 0d 01 68 05 3a 0d  01 72 22 c8 93 20 58 2c  |....h.:..r".. X,|
000001f0  59 2c 31 32 38 30 2d 58  2c 31 30 32 34 2d 59 20  |Y,1280-X,1024-Y |
00000200  b8 20 58 2b 34 2c 59 2b  34 0d 01 7c 1c c8 93 20  |. X+4,Y+4..|... |
00000210  30 2c 59 2c 58 2c 31 30  32 34 2d 59 20 b8 20 2d  |0,Y,X,1024-Y . -|
00000220  34 2c 59 2b 34 0d 01 86  1c c8 93 20 58 2c 30 2c  |4,Y+4...... X,0,|
00000230  31 32 38 30 2d 58 2c 59  20 b8 20 58 2b 34 2c 2d  |1280-X,Y . X+4,-|
00000240  34 0d 01 90 16 c8 93 20  30 2c 30 2c 58 2c 59 20  |4...... 0,0,X,Y |
00000250  b8 20 2d 34 2c 2d 34 0d  01 9a 05 3a 0d 01 a4 04  |. -4,-4....:....|
00000260  0d 01 ae 10 45 52 2b 3d  b4 28 b3 29 2a 43 43 53  |....ER+=.(.)*CCS|
00000270  0d 01 b8 15 e7 20 45 52  3e 32 35 35 20 8c 20 45  |..... ER>255 . E|
00000280  52 3d 32 35 35 0d 01 c2  11 e7 20 45 52 3c 30 20  |R=255..... ER<0 |
00000290  8c 20 45 52 3d 30 0d 01  cc 10 45 47 2b 3d b4 28  |. ER=0....EG+=.(|
000002a0  b3 29 2a 43 43 53 0d 01  d6 15 e7 20 45 47 3e 32  |.)*CCS..... EG>2|
000002b0  35 35 20 8c 20 45 47 3d  32 35 35 0d 01 e0 11 e7  |55 . EG=255.....|
000002c0  20 45 47 3c 30 20 8c 20  45 47 3d 30 0d 01 ea 10  | EG<0 . EG=0....|
000002d0  45 42 2b 3d b4 28 b3 29  2a 43 43 53 0d 01 f4 15  |EB+=.(.)*CCS....|
000002e0  e7 20 45 42 3e 32 35 35  20 8c 20 45 42 3d 32 35  |. EB>255 . EB=25|
000002f0  35 0d 01 fe 11 e7 20 45  42 3c 30 20 8c 20 45 42  |5..... EB<0 . EB|
00000300  3d 30 0d 02 08 11 52 4f  3d 28 45 52 2d 53 52 29  |=0....RO=(ER-SR)|
00000310  2f 31 35 0d 02 12 11 47  4f 3d 28 45 47 2d 53 47  |/15....GO=(EG-SG|
00000320  29 2f 31 35 0d 02 1c 11  42 4f 3d 28 45 42 2d 53  |)/15....BO=(EB-S|
00000330  42 29 2f 31 35 0d 02 26  10 e3 20 4c 20 3d 20 31  |B)/15..&.. L = 1|
00000340  20 b8 20 31 35 0d 02 30  1f fb 20 4c 2c 53 52 2b  | . 15..0.. L,SR+|
00000350  52 4f 2a 4c 2c 53 47 2b  47 4f 2a 4c 2c 53 42 2b  |RO*L,SG+GO*L,SB+|
00000360  42 4f 2a 4c 0d 02 3a 07  ed 20 4c 0d 02 44 05 3a  |BO*L..:.. L..D.:|
00000370  0d 02 4e 15 e7 20 42 3d  34 20 80 20 b3 28 31 35  |..N.. B=4 . .(15|
00000380  29 3d 31 20 8c 0d 02 58  15 e3 20 4c 20 3d 20 31  |)=1 ...X.. L = 1|
00000390  35 20 b8 20 31 20 88 20  2d 31 0d 02 62 07 e6 20  |5 . 1 . -1..b.. |
000003a0  4c 0d 02 6c 10 c8 8f c8  90 20 58 2c 59 2c 4c 2a  |L..l..... X,Y,L*|
000003b0  33 0d 02 76 07 ed 20 4c  0d 02 80 05 cd 0d 02 8a  |3..v.. L........|
000003c0  05 3a 0d 02 94 23 e7 20  a6 2d 39 39 20 8c 20 43  |.:...#. .-99 . C|
000003d0  49 52 43 3d 31 2d 43 49  52 43 3a f5 20 fd 20 ac  |IRC=1-CIRC:. . .|
000003e0  20 a6 2d 39 39 0d 02 9e  07 fd 20 a3 0d ff        | .-99..... ...|
000003ee