Home » Archimedes archive » Acorn User » AU 1996-02.adf » Regulars » StarInfo/Vibe/Snowflake
StarInfo/Vibe/Snowflake
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 1996-02.adf » Regulars |
| Filename: | StarInfo/Vibe/Snowflake |
| Read OK: | ✔ |
| File size: | 039A bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM > SNOWFLAKE 20 30MODE31:OFF 40K%=10000:S%=40 50FORN%=1TO15:COLOURN%,16*N%,16*N%,255:NEXT 60DIM X(K%),Y(K%),A%(K%),P%(K%),SI(5),CO(5) 70FORN%=0TO5:T=RAD(60*N%+30):SI(N%)=SINT:CO(N%)=COST:NEXT 80 90REPEAT:CLS 100A$="00":FORN%=1TO28:IF RND(1)>.85 A$+="1" ELSE A$+="0" 110NEXT:T%=0 120FORN%=1TO6:T%+=1:X(N%)=800:Y(N%)=600:A%(N%)=N%-1:P%(N%)=0:NEXT 130FORI%=1TO15:GCOL I%:T1%=T%:R%=RND(15) 140FORN%=1TOT% 150X1=X(N%)+S%*SI(A%(N%)):Y1=Y(N%)+S%*CO(A%(N%)) 160PROCL(X(N%),Y(N%),X1,Y1,4*(16-I%)):X(N%)=X1:Y(N%)=Y1 170P%(N%)=P%(N%)+1:F%=VALMID$(A$,P%(N%),1) 180IFF%=1 THEN 190T1%+=1:X(T1%)=X1:Y(T1%)=Y1:A%(T1%)=(A%(N%)+1)MOD6:P%(T1%)=R% 200T1%+=1:X(T1%)=X1:Y(T1%)=Y1:A%(T1%)=(A%(N%)+5)MOD6:P%(T1%)=R% 210ENDIF 220NEXT 230T%=T1% 240NEXT 250K$=INKEY$(500) 260UNTIL0 270 280DEFPROCL(X1,Y1,X2,Y2,W) 290LOCAL L,T1,T2 300L=SQR((X1-X2)^2+(Y1-Y2)^2):IF X1>X2 L=-L 310IF L<>0 THEN 320T1=ASN((Y1-Y2)/L):T2=T1+PI:W=W/2 330MOVEX1+W*SINT1,Y1+W*COST1:MOVEX1+W*SINT2,Y1+W*COST2 340PLOT&75,X2+W*SINT2,Y2+W*COST2 350CIRCLE FILL X1,Y1,W:CIRCLE FILL X2,Y2,W 360ELSE 370CIRCLE FILL X1,Y1,W 380ENDIF 390ENDPROC
� > SNOWFLAKE �31:� (K%=10000:S%=40 2"�N%=1�15:�N%,16*N%,16*N%,255:� <+� X(K%),Y(K%),A%(K%),P%(K%),SI(5),CO(5) F/�N%=0�5:T=�(60*N%+30):SI(N%)=�T:CO(N%)=�T:� P Z�:� d1A$="00":�N%=1�28:� �(1)>.85 A$+="1" � A$+="0" n �:T%=0 x<�N%=1�6:T%+=1:X(N%)=800:Y(N%)=600:A%(N%)=N%-1:P%(N%)=0:� �!�I%=1�15:� I%:T1%=T%:R%=�(15) ��N%=1�T% �1X1=X(N%)+S%*SI(A%(N%)):Y1=Y(N%)+S%*CO(A%(N%)) �5�L(X(N%),Y(N%),X1,Y1,4*(16-I%)):X(N%)=X1:Y(N%)=Y1 �%P%(N%)=P%(N%)+1:F%=��A$,P%(N%),1) ��F%=1 � �>T1%+=1:X(T1%)=X1:Y(T1%)=Y1:A%(T1%)=(A%(N%)+1)�6:P%(T1%)=R% �>T1%+=1:X(T1%)=X1:Y(T1%)=Y1:A%(T1%)=(A%(N%)+5)�6:P%(T1%)=R% �� �� � T%=T1% �� � K$=�(500) �0 ��L(X1,Y1,X2,Y2,W) " � L,T1,T2 ,)L=�((X1-X2)^2+(Y1-Y2)^2):� X1>X2 L=-L 6� L<>0 � @!T1=�((Y1-Y2)/L):T2=T1+�:W=W/2 J)�X1+W*�T1,Y1+W*�T1:�X1+W*�T2,Y1+W*�T2 T�&75,X2+W*�T2,Y2+W*�T2 ^ȏ Ȑ X1,Y1,W:ȏ Ȑ X2,Y2,W h� rȏ Ȑ X1,Y1,W |� �� �
00000000 0d 00 0a 11 f4 20 3e 20 53 4e 4f 57 46 4c 41 4b |..... > SNOWFLAK| 00000010 45 0d 00 14 04 0d 00 1e 09 eb 33 31 3a 87 0d 00 |E.........31:...| 00000020 28 12 4b 25 3d 31 30 30 30 30 3a 53 25 3d 34 30 |(.K%=10000:S%=40| 00000030 0d 00 32 22 e3 4e 25 3d 31 b8 31 35 3a fb 4e 25 |..2".N%=1.15:.N%| 00000040 2c 31 36 2a 4e 25 2c 31 36 2a 4e 25 2c 32 35 35 |,16*N%,16*N%,255| 00000050 3a ed 0d 00 3c 2b de 20 58 28 4b 25 29 2c 59 28 |:...<+. X(K%),Y(| 00000060 4b 25 29 2c 41 25 28 4b 25 29 2c 50 25 28 4b 25 |K%),A%(K%),P%(K%| 00000070 29 2c 53 49 28 35 29 2c 43 4f 28 35 29 0d 00 46 |),SI(5),CO(5)..F| 00000080 2f e3 4e 25 3d 30 b8 35 3a 54 3d b2 28 36 30 2a |/.N%=0.5:T=.(60*| 00000090 4e 25 2b 33 30 29 3a 53 49 28 4e 25 29 3d b5 54 |N%+30):SI(N%)=.T| 000000a0 3a 43 4f 28 4e 25 29 3d 9b 54 3a ed 0d 00 50 04 |:CO(N%)=.T:...P.| 000000b0 0d 00 5a 07 f5 3a db 0d 00 64 31 41 24 3d 22 30 |..Z..:...d1A$="0| 000000c0 30 22 3a e3 4e 25 3d 31 b8 32 38 3a e7 20 b3 28 |0":.N%=1.28:. .(| 000000d0 31 29 3e 2e 38 35 20 41 24 2b 3d 22 31 22 20 8b |1)>.85 A$+="1" .| 000000e0 20 41 24 2b 3d 22 30 22 0d 00 6e 0a ed 3a 54 25 | A$+="0"..n..:T%| 000000f0 3d 30 0d 00 78 3c e3 4e 25 3d 31 b8 36 3a 54 25 |=0..x<.N%=1.6:T%| 00000100 2b 3d 31 3a 58 28 4e 25 29 3d 38 30 30 3a 59 28 |+=1:X(N%)=800:Y(| 00000110 4e 25 29 3d 36 30 30 3a 41 25 28 4e 25 29 3d 4e |N%)=600:A%(N%)=N| 00000120 25 2d 31 3a 50 25 28 4e 25 29 3d 30 3a ed 0d 00 |%-1:P%(N%)=0:...| 00000130 82 21 e3 49 25 3d 31 b8 31 35 3a e6 20 49 25 3a |.!.I%=1.15:. I%:| 00000140 54 31 25 3d 54 25 3a 52 25 3d b3 28 31 35 29 0d |T1%=T%:R%=.(15).| 00000150 00 8c 0c e3 4e 25 3d 31 b8 54 25 0d 00 96 31 58 |....N%=1.T%...1X| 00000160 31 3d 58 28 4e 25 29 2b 53 25 2a 53 49 28 41 25 |1=X(N%)+S%*SI(A%| 00000170 28 4e 25 29 29 3a 59 31 3d 59 28 4e 25 29 2b 53 |(N%)):Y1=Y(N%)+S| 00000180 25 2a 43 4f 28 41 25 28 4e 25 29 29 0d 00 a0 35 |%*CO(A%(N%))...5| 00000190 f2 4c 28 58 28 4e 25 29 2c 59 28 4e 25 29 2c 58 |.L(X(N%),Y(N%),X| 000001a0 31 2c 59 31 2c 34 2a 28 31 36 2d 49 25 29 29 3a |1,Y1,4*(16-I%)):| 000001b0 58 28 4e 25 29 3d 58 31 3a 59 28 4e 25 29 3d 59 |X(N%)=X1:Y(N%)=Y| 000001c0 31 0d 00 aa 25 50 25 28 4e 25 29 3d 50 25 28 4e |1...%P%(N%)=P%(N| 000001d0 25 29 2b 31 3a 46 25 3d bb c1 41 24 2c 50 25 28 |%)+1:F%=..A$,P%(| 000001e0 4e 25 29 2c 31 29 0d 00 b4 0b e7 46 25 3d 31 20 |N%),1).....F%=1 | 000001f0 8c 0d 00 be 3e 54 31 25 2b 3d 31 3a 58 28 54 31 |....>T1%+=1:X(T1| 00000200 25 29 3d 58 31 3a 59 28 54 31 25 29 3d 59 31 3a |%)=X1:Y(T1%)=Y1:| 00000210 41 25 28 54 31 25 29 3d 28 41 25 28 4e 25 29 2b |A%(T1%)=(A%(N%)+| 00000220 31 29 83 36 3a 50 25 28 54 31 25 29 3d 52 25 0d |1).6:P%(T1%)=R%.| 00000230 00 c8 3e 54 31 25 2b 3d 31 3a 58 28 54 31 25 29 |..>T1%+=1:X(T1%)| 00000240 3d 58 31 3a 59 28 54 31 25 29 3d 59 31 3a 41 25 |=X1:Y(T1%)=Y1:A%| 00000250 28 54 31 25 29 3d 28 41 25 28 4e 25 29 2b 35 29 |(T1%)=(A%(N%)+5)| 00000260 83 36 3a 50 25 28 54 31 25 29 3d 52 25 0d 00 d2 |.6:P%(T1%)=R%...| 00000270 05 cd 0d 00 dc 05 ed 0d 00 e6 0a 54 25 3d 54 31 |...........T%=T1| 00000280 25 0d 00 f0 05 ed 0d 00 fa 0d 4b 24 3d bf 28 35 |%.........K$=.(5| 00000290 30 30 29 0d 01 04 06 fd 30 0d 01 0e 04 0d 01 18 |00).....0.......| 000002a0 16 dd f2 4c 28 58 31 2c 59 31 2c 58 32 2c 59 32 |...L(X1,Y1,X2,Y2| 000002b0 2c 57 29 0d 01 22 0d ea 20 4c 2c 54 31 2c 54 32 |,W)..".. L,T1,T2| 000002c0 0d 01 2c 29 4c 3d b6 28 28 58 31 2d 58 32 29 5e |..,)L=.((X1-X2)^| 000002d0 32 2b 28 59 31 2d 59 32 29 5e 32 29 3a e7 20 58 |2+(Y1-Y2)^2):. X| 000002e0 31 3e 58 32 20 4c 3d 2d 4c 0d 01 36 0c e7 20 4c |1>X2 L=-L..6.. L| 000002f0 3c 3e 30 20 8c 0d 01 40 21 54 31 3d 98 28 28 59 |<>0 ...@!T1=.((Y| 00000300 31 2d 59 32 29 2f 4c 29 3a 54 32 3d 54 31 2b af |1-Y2)/L):T2=T1+.| 00000310 3a 57 3d 57 2f 32 0d 01 4a 29 ec 58 31 2b 57 2a |:W=W/2..J).X1+W*| 00000320 b5 54 31 2c 59 31 2b 57 2a 9b 54 31 3a ec 58 31 |.T1,Y1+W*.T1:.X1| 00000330 2b 57 2a b5 54 32 2c 59 31 2b 57 2a 9b 54 32 0d |+W*.T2,Y1+W*.T2.| 00000340 01 54 1a f0 26 37 35 2c 58 32 2b 57 2a b5 54 32 |.T..&75,X2+W*.T2| 00000350 2c 59 32 2b 57 2a 9b 54 32 0d 01 5e 1f c8 8f 20 |,Y2+W*.T2..^... | 00000360 c8 90 20 58 31 2c 59 31 2c 57 3a c8 8f 20 c8 90 |.. X1,Y1,W:.. ..| 00000370 20 58 32 2c 59 32 2c 57 0d 01 68 05 cc 0d 01 72 | X2,Y2,W..h....r| 00000380 11 c8 8f 20 c8 90 20 58 31 2c 59 31 2c 57 0d 01 |... .. X1,Y1,W..| 00000390 7c 05 cd 0d 01 86 05 e1 0d ff ||.........| 0000039a
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