Home » Archimedes archive » Acorn User » AU 1997-06 B.adf » Regulars » StarInfo/Mellor/Craters

StarInfo/Mellor/Craters

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 1997-06 B.adf » Regulars
Filename: StarInfo/Mellor/Craters
Read OK:
File size: 0588 bytes
Load address: 0000
Exec address: 0000
File contents
   10REM >Crators
   20REM by Philip Mellor (age 15)
   30REM Acorn User/Star Info
   40:
   50MODE 36:OFF
   60dummy=RND(-TIME)
   70SYS "OS_SWINumberFromString",,"ColourTrans_SetGCOL" TO set_gcol%
   80DIM ballspr &20000
   90ballspr!0=&1FFFF:ballspr!4=0:ballspr!8=16:ballspr!12=16
  100SYS"OS_SpriteOp",256+15,ballspr,"BALL",0,128,64,36
  110SYS"OS_SpriteOp",256+29,ballspr,"BALL"
  120ONERRORPROCbyebye:END
  130max=3:DIM x(max),y(max)
  140FOR I=1 TO max
  150x(I)=RND(1335)+100:y(I)=RND(951)+100
  160NEXT
  170:
  180I=1
  190SYS"OS_SpriteOp",256+60,ballspr,"BALL",0
  200CLG:RA%=64
  210R1%=RND(127):G1%=RND(127):B1%=RND(127)
  220R2%=R1%+127:G2%=G1%+127:B2%=B1%+127
  230FORN%=32TO0STEP-2:N1%=32-N%
  240R%=(N%*R1%+N1%*R2%)/32:G%=(N%*G1%+N1%*G2%)/32:B%=(N%*B1%+N1%*B2%)/32
  250SYS set_gcol%,(R%<<8)+(G%<<16)+(B%<<24),,,&100,0
  260CIRCLE FILL RA%,RA%,N%*RA%/32:NEXT
  270SYS"OS_SpriteOp",256+61,ballspr,"BALL",0
  280GCOL0TINT0:RECTANGLE FILL 0,0,256
  290GCOL63TINT240
  300D=SQR(2*RA%^2)-RA%:PD=SQR(D^2/2):R1=RA%*.6:P=SQR(R1^2/2)+PD+4
  310CIRCLE FILL P,P,R1
  320SYS"OS_SpriteOp",256+61,ballspr,0,0:OFF
  330r1=720:r2=0
  340REPEAT
  350FOR b=1 TO 56
  360FOR I=1 TO max
  370ang=RAD(RND(360))
  380xpos=r1*SIN(ang)
  390ypos=r1*COS(ang)
  400SYS "OS_SpriteOp",256+34,ballspr,"BALL",xpos-P+x(I),ypos-P+y(I),8
  410ang=RAD(RND(360))
  420xpos=r2*SIN(ang)
  430ypos=r2*COS(ang)
  440SYS "OS_SpriteOp",256+34,ballspr,"BALL",xpos-P+x(I),ypos-P+y(I),8
  450NEXT
  460NEXT
  470r1-=8:r2+=8
  480UNTIL r1<r2
  490VDU7
  500REPEATUNTILGET=32
  510END
  520:
  530DEFPROCbyebye
  540SYS"OS_SpriteOp",256+60,ballspr,0,0
  550SYS"OS_SpriteOp",256+61,ballspr,0,0
  560REPORT:PRINT" at line "STR$ERL
  570ENDPROC

� >Crators
� by Philip Mellor (age 15)
� Acorn User/Star Info
(:
2
� 36:�
<dummy=�(-�)
FBș "OS_SWINumberFromString",,"ColourTrans_SetGCOL" � set_gcol%
P� ballspr &20000
Z;ballspr!0=&1FFFF:ballspr!4=0:ballspr!8=16:ballspr!12=16
d5ș"OS_SpriteOp",256+15,ballspr,"BALL",0,128,64,36
n)ș"OS_SpriteOp",256+29,ballspr,"BALL"
x��byebye:�
�max=3:� x(max),y(max)
�� I=1 � max
�$x(I)=�(1335)+100:y(I)=�(951)+100
��
�:
�I=1
�+ș"OS_SpriteOp",256+60,ballspr,"BALL",0
��:RA%=64
�$R1%=�(127):G1%=�(127):B1%=�(127)
�'R2%=R1%+127:G2%=G1%+127:B2%=B1%+127
��N%=32�0�-2:N1%=32-N%
�HR%=(N%*R1%+N1%*R2%)/32:G%=(N%*G1%+N1%*G2%)/32:B%=(N%*B1%+N1%*B2%)/32
�3ș set_gcol%,(R%<<8)+(G%<<16)+(B%<<24),,,&100,0
ȏ Ȑ RA%,RA%,N%*RA%/32:�
+ș"OS_SpriteOp",256+61,ballspr,"BALL",0
�0Ȝ0:ȓ Ȑ 0,0,256
"�63Ȝ240
,;D=�(2*RA%^2)-RA%:PD=�(D^2/2):R1=RA%*.6:P=�(R1^2/2)+PD+4
6ȏ Ȑ P,P,R1
@(ș"OS_SpriteOp",256+61,ballspr,0,0:�
Jr1=720:r2=0
T�
^� b=1 � 56
h� I=1 � max
rang=�(�(360))
|xpos=r1*�(ang)
�ypos=r1*�(ang)
�Dș "OS_SpriteOp",256+34,ballspr,"BALL",xpos-P+x(I),ypos-P+y(I),8
�ang=�(�(360))
�xpos=r2*�(ang)
�ypos=r2*�(ang)
�Dș "OS_SpriteOp",256+34,ballspr,"BALL",xpos-P+x(I),ypos-P+y(I),8
��
��
�r1-=8:r2+=8
�� r1<r2
��7
�
���=32
��
:
��byebye
&ș"OS_SpriteOp",256+60,ballspr,0,0
&&ș"OS_SpriteOp",256+61,ballspr,0,0
0�:�" at line "Þ
:�
�
00000000  0d 00 0a 0e f4 20 3e 43  72 61 74 6f 72 73 0d 00  |..... >Crators..|
00000010  14 1f f4 20 62 79 20 50  68 69 6c 69 70 20 4d 65  |... by Philip Me|
00000020  6c 6c 6f 72 20 28 61 67  65 20 31 35 29 0d 00 1e  |llor (age 15)...|
00000030  1a f4 20 41 63 6f 72 6e  20 55 73 65 72 2f 53 74  |.. Acorn User/St|
00000040  61 72 20 49 6e 66 6f 0d  00 28 05 3a 0d 00 32 0a  |ar Info..(.:..2.|
00000050  eb 20 33 36 3a 87 0d 00  3c 0f 64 75 6d 6d 79 3d  |. 36:...<.dummy=|
00000060  b3 28 2d 91 29 0d 00 46  42 c8 99 20 22 4f 53 5f  |.(-.)..FB.. "OS_|
00000070  53 57 49 4e 75 6d 62 65  72 46 72 6f 6d 53 74 72  |SWINumberFromStr|
00000080  69 6e 67 22 2c 2c 22 43  6f 6c 6f 75 72 54 72 61  |ing",,"ColourTra|
00000090  6e 73 5f 53 65 74 47 43  4f 4c 22 20 b8 20 73 65  |ns_SetGCOL" . se|
000000a0  74 5f 67 63 6f 6c 25 0d  00 50 14 de 20 62 61 6c  |t_gcol%..P.. bal|
000000b0  6c 73 70 72 20 26 32 30  30 30 30 0d 00 5a 3b 62  |lspr &20000..Z;b|
000000c0  61 6c 6c 73 70 72 21 30  3d 26 31 46 46 46 46 3a  |allspr!0=&1FFFF:|
000000d0  62 61 6c 6c 73 70 72 21  34 3d 30 3a 62 61 6c 6c  |ballspr!4=0:ball|
000000e0  73 70 72 21 38 3d 31 36  3a 62 61 6c 6c 73 70 72  |spr!8=16:ballspr|
000000f0  21 31 32 3d 31 36 0d 00  64 35 c8 99 22 4f 53 5f  |!12=16..d5.."OS_|
00000100  53 70 72 69 74 65 4f 70  22 2c 32 35 36 2b 31 35  |SpriteOp",256+15|
00000110  2c 62 61 6c 6c 73 70 72  2c 22 42 41 4c 4c 22 2c  |,ballspr,"BALL",|
00000120  30 2c 31 32 38 2c 36 34  2c 33 36 0d 00 6e 29 c8  |0,128,64,36..n).|
00000130  99 22 4f 53 5f 53 70 72  69 74 65 4f 70 22 2c 32  |."OS_SpriteOp",2|
00000140  35 36 2b 32 39 2c 62 61  6c 6c 73 70 72 2c 22 42  |56+29,ballspr,"B|
00000150  41 4c 4c 22 0d 00 78 0f  ee 85 f2 62 79 65 62 79  |ALL"..x....byeby|
00000160  65 3a e0 0d 00 82 19 6d  61 78 3d 33 3a de 20 78  |e:.....max=3:. x|
00000170  28 6d 61 78 29 2c 79 28  6d 61 78 29 0d 00 8c 0f  |(max),y(max)....|
00000180  e3 20 49 3d 31 20 b8 20  6d 61 78 0d 00 96 24 78  |. I=1 . max...$x|
00000190  28 49 29 3d b3 28 31 33  33 35 29 2b 31 30 30 3a  |(I)=.(1335)+100:|
000001a0  79 28 49 29 3d b3 28 39  35 31 29 2b 31 30 30 0d  |y(I)=.(951)+100.|
000001b0  00 a0 05 ed 0d 00 aa 05  3a 0d 00 b4 07 49 3d 31  |........:....I=1|
000001c0  0d 00 be 2b c8 99 22 4f  53 5f 53 70 72 69 74 65  |...+.."OS_Sprite|
000001d0  4f 70 22 2c 32 35 36 2b  36 30 2c 62 61 6c 6c 73  |Op",256+60,balls|
000001e0  70 72 2c 22 42 41 4c 4c  22 2c 30 0d 00 c8 0c da  |pr,"BALL",0.....|
000001f0  3a 52 41 25 3d 36 34 0d  00 d2 24 52 31 25 3d b3  |:RA%=64...$R1%=.|
00000200  28 31 32 37 29 3a 47 31  25 3d b3 28 31 32 37 29  |(127):G1%=.(127)|
00000210  3a 42 31 25 3d b3 28 31  32 37 29 0d 00 dc 27 52  |:B1%=.(127)...'R|
00000220  32 25 3d 52 31 25 2b 31  32 37 3a 47 32 25 3d 47  |2%=R1%+127:G2%=G|
00000230  31 25 2b 31 32 37 3a 42  32 25 3d 42 31 25 2b 31  |1%+127:B2%=B1%+1|
00000240  32 37 0d 00 e6 19 e3 4e  25 3d 33 32 b8 30 88 2d  |27.....N%=32.0.-|
00000250  32 3a 4e 31 25 3d 33 32  2d 4e 25 0d 00 f0 48 52  |2:N1%=32-N%...HR|
00000260  25 3d 28 4e 25 2a 52 31  25 2b 4e 31 25 2a 52 32  |%=(N%*R1%+N1%*R2|
00000270  25 29 2f 33 32 3a 47 25  3d 28 4e 25 2a 47 31 25  |%)/32:G%=(N%*G1%|
00000280  2b 4e 31 25 2a 47 32 25  29 2f 33 32 3a 42 25 3d  |+N1%*G2%)/32:B%=|
00000290  28 4e 25 2a 42 31 25 2b  4e 31 25 2a 42 32 25 29  |(N%*B1%+N1%*B2%)|
000002a0  2f 33 32 0d 00 fa 33 c8  99 20 73 65 74 5f 67 63  |/32...3.. set_gc|
000002b0  6f 6c 25 2c 28 52 25 3c  3c 38 29 2b 28 47 25 3c  |ol%,(R%<<8)+(G%<|
000002c0  3c 31 36 29 2b 28 42 25  3c 3c 32 34 29 2c 2c 2c  |<16)+(B%<<24),,,|
000002d0  26 31 30 30 2c 30 0d 01  04 1d c8 8f 20 c8 90 20  |&100,0...... .. |
000002e0  52 41 25 2c 52 41 25 2c  4e 25 2a 52 41 25 2f 33  |RA%,RA%,N%*RA%/3|
000002f0  32 3a ed 0d 01 0e 2b c8  99 22 4f 53 5f 53 70 72  |2:....+.."OS_Spr|
00000300  69 74 65 4f 70 22 2c 32  35 36 2b 36 31 2c 62 61  |iteOp",256+61,ba|
00000310  6c 6c 73 70 72 2c 22 42  41 4c 4c 22 2c 30 0d 01  |llspr,"BALL",0..|
00000320  18 17 e6 30 c8 9c 30 3a  c8 93 20 c8 90 20 30 2c  |...0..0:.. .. 0,|
00000330  30 2c 32 35 36 0d 01 22  0c e6 36 33 c8 9c 32 34  |0,256.."..63..24|
00000340  30 0d 01 2c 3b 44 3d b6  28 32 2a 52 41 25 5e 32  |0..,;D=.(2*RA%^2|
00000350  29 2d 52 41 25 3a 50 44  3d b6 28 44 5e 32 2f 32  |)-RA%:PD=.(D^2/2|
00000360  29 3a 52 31 3d 52 41 25  2a 2e 36 3a 50 3d b6 28  |):R1=RA%*.6:P=.(|
00000370  52 31 5e 32 2f 32 29 2b  50 44 2b 34 0d 01 36 10  |R1^2/2)+PD+4..6.|
00000380  c8 8f 20 c8 90 20 50 2c  50 2c 52 31 0d 01 40 28  |.. .. P,P,R1..@(|
00000390  c8 99 22 4f 53 5f 53 70  72 69 74 65 4f 70 22 2c  |.."OS_SpriteOp",|
000003a0  32 35 36 2b 36 31 2c 62  61 6c 6c 73 70 72 2c 30  |256+61,ballspr,0|
000003b0  2c 30 3a 87 0d 01 4a 0f  72 31 3d 37 32 30 3a 72  |,0:...J.r1=720:r|
000003c0  32 3d 30 0d 01 54 05 f5  0d 01 5e 0e e3 20 62 3d  |2=0..T....^.. b=|
000003d0  31 20 b8 20 35 36 0d 01  68 0f e3 20 49 3d 31 20  |1 . 56..h.. I=1 |
000003e0  b8 20 6d 61 78 0d 01 72  11 61 6e 67 3d b2 28 b3  |. max..r.ang=.(.|
000003f0  28 33 36 30 29 29 0d 01  7c 12 78 70 6f 73 3d 72  |(360))..|.xpos=r|
00000400  31 2a b5 28 61 6e 67 29  0d 01 86 12 79 70 6f 73  |1*.(ang)....ypos|
00000410  3d 72 31 2a 9b 28 61 6e  67 29 0d 01 90 44 c8 99  |=r1*.(ang)...D..|
00000420  20 22 4f 53 5f 53 70 72  69 74 65 4f 70 22 2c 32  | "OS_SpriteOp",2|
00000430  35 36 2b 33 34 2c 62 61  6c 6c 73 70 72 2c 22 42  |56+34,ballspr,"B|
00000440  41 4c 4c 22 2c 78 70 6f  73 2d 50 2b 78 28 49 29  |ALL",xpos-P+x(I)|
00000450  2c 79 70 6f 73 2d 50 2b  79 28 49 29 2c 38 0d 01  |,ypos-P+y(I),8..|
00000460  9a 11 61 6e 67 3d b2 28  b3 28 33 36 30 29 29 0d  |..ang=.(.(360)).|
00000470  01 a4 12 78 70 6f 73 3d  72 32 2a b5 28 61 6e 67  |...xpos=r2*.(ang|
00000480  29 0d 01 ae 12 79 70 6f  73 3d 72 32 2a 9b 28 61  |)....ypos=r2*.(a|
00000490  6e 67 29 0d 01 b8 44 c8  99 20 22 4f 53 5f 53 70  |ng)...D.. "OS_Sp|
000004a0  72 69 74 65 4f 70 22 2c  32 35 36 2b 33 34 2c 62  |riteOp",256+34,b|
000004b0  61 6c 6c 73 70 72 2c 22  42 41 4c 4c 22 2c 78 70  |allspr,"BALL",xp|
000004c0  6f 73 2d 50 2b 78 28 49  29 2c 79 70 6f 73 2d 50  |os-P+x(I),ypos-P|
000004d0  2b 79 28 49 29 2c 38 0d  01 c2 05 ed 0d 01 cc 05  |+y(I),8.........|
000004e0  ed 0d 01 d6 0f 72 31 2d  3d 38 3a 72 32 2b 3d 38  |.....r1-=8:r2+=8|
000004f0  0d 01 e0 0b fd 20 72 31  3c 72 32 0d 01 ea 06 ef  |..... r1<r2.....|
00000500  37 0d 01 f4 0a f5 fd a5  3d 33 32 0d 01 fe 05 e0  |7.......=32.....|
00000510  0d 02 08 05 3a 0d 02 12  0c dd f2 62 79 65 62 79  |....:......byeby|
00000520  65 0d 02 1c 26 c8 99 22  4f 53 5f 53 70 72 69 74  |e...&.."OS_Sprit|
00000530  65 4f 70 22 2c 32 35 36  2b 36 30 2c 62 61 6c 6c  |eOp",256+60,ball|
00000540  73 70 72 2c 30 2c 30 0d  02 26 26 c8 99 22 4f 53  |spr,0,0..&&.."OS|
00000550  5f 53 70 72 69 74 65 4f  70 22 2c 32 35 36 2b 36  |_SpriteOp",256+6|
00000560  31 2c 62 61 6c 6c 73 70  72 2c 30 2c 30 0d 02 30  |1,ballspr,0,0..0|
00000570  14 f6 3a f1 22 20 61 74  20 6c 69 6e 65 20 22 c3  |..:." at line ".|
00000580  9e 0d 02 3a 05 e1 0d ff                           |...:....|
00000588