Home » Archimedes archive » Acorn User » AU 1997-Xmas B.adf » Regulars » StarInfo/Vibe/DRAWLINEC
StarInfo/Vibe/DRAWLINEC
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-Xmas B.adf » Regulars |
| Filename: | StarInfo/Vibe/DRAWLINEC |
| Read OK: | ✔ |
| File size: | 06BD bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM > DRAWLINEC 20 30MODE21:OFF 40SYS"OS_ReadModeVariable",-1,4 TO,,SX%:SX%=2^SX% 50SYS"OS_ReadModeVariable",-1,5 TO,,SY%:SY%=2^SY% 60SYS"OS_ReadModeVariable",-1,11 TO,,XS% 70SYS"OS_ReadModeVariable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raw_Stroke",PATH%,0,0,0,W,JC%,0 510ENDPROC 520 530DEFPROCRGB(R%,G%,B%) 540LOCAL C%:C%=(R%<<8)+(G%<<16)+(B%<<24) 550SYS "ColourTrans_SetGCOL",C%,,,&100,0 560ENDPROC
� > DRAWLINEC �21:� (1ș"OS_ReadModeVariable",-1,4 �,,SX%:SX%=2^SX% 21ș"OS_ReadModeVariable",-1,5 �,,SY%:SY%=2^SY% <(ș"OS_ReadModeVariable",-1,11 �,,XS% F(ș"OS_ReadModeVariable",-1,12 �,,YS% PW%=SX%*XS%-1:H%=SY%*YS%-1 Z d� PATH% 100,JC% 15 n$JC%!0=0:JC%!4=0:JC%!8=0:JC%!12=0 x �� � B%=�(128) �'X1%=�(W%-B%)+B%/2:Y1%=�(H%-B%)+B%/2 �'X2%=�(W%-B%)+B%/2:Y2%=�(H%-B%)+B%/2 �8�:R1%=�(255):G1%=�(255):B1%=�(255):�R1%+G1%+B1%<=255 �8�:R2%=�(255):G2%=�(255):B2%=�(255):�R2%+G2%+B2%>=511 �5�LINE(X1%,Y1%,R1%,G1%,B1%,X2%,Y2%,R2%,G2%,B2%,B%) ��0 � �1��LINE(X1,Y1,R1%,G1%,B1%,X2,Y2,R2%,G2%,B2%,B) �&� L,K%,N%,N1%,XA,YA,XB,YB,R%,G%,B% �L=�((X2-X1)^2+(Y2-Y1)^2) �!K%=L/8+�(8):�K%<32 K%=24+�(8) XA=(X1+X2)/2:YA=(Y1+Y2)/2 5JC%!0=&010000:�RGB(R1%,G1%,B1%):�L(X1,Y1,XA,YA,B) 5JC%!0=&000100:�RGB(R2%,G2%,B2%):�L(XA,YA,X2,Y2,B) "JC%!0=&000000 ,�N%=2�K%:N1%=K%-N% 6AXA=(X1%*(N%-2)+X2%*(N1%+2))/K%:YA=(Y1%*(N%-2)+Y2%*(N1%+2))/K% @-XB=(X1*N%+X2*N1%)/K%:YB=(Y1*N%+Y2*N1%)/K% JAR%=((N%-2)*R1%+(N1%+2)*R2%)/K%:G%=((N%-2)*G1%+(N1%+2)*G2%)/K% T1B%=((N%-2)*B1%+(N1%+2)*B2%)/K%:�RGB(R%,G%,B%) ^�L(XA,YA,XB,YB,B) h� r=XA=(X1%*(K%-1)+X2%)/K%:YA=(Y1%*(K%-1)+Y2%)/K%:XB=X1:YB=Y1 |1R%=((K%-1)*R1%+R2%)/K%:G%=((K%-1)*G1%+G2%)/K% �)B%=((K%-1)*B1%+B2%)/K%:�RGB(R%,G%,B%) ��L(XA,YA,XB,YB,B) �� � ���L(X1,Y1,X2,Y2,B) �� PP%,W �+X1=256*X1:Y1=256*Y1:X2=256*X2:Y2=256*Y2 �>PATH%!PP%=2:PP%+=4:PATH%!PP%=X1:PP%+=4:PATH%!PP%=Y1:PP%+=4 �>PATH%!PP%=8:PP%+=4:PATH%!PP%=X2:PP%+=4:PATH%!PP%=Y2:PP%+=4 �$PATH%!PP%=0:PP%+=4:PATH%!PP%=PP% �W=256*B �'ș"Draw_Stroke",PATH%,0,0,0,W,JC%,0 �� ��RGB(R%,G%,B%) %� C%:C%=(R%<<8)+(G%<<16)+(B%<<24) &(ș "ColourTrans_SetGCOL",C%,,,&100,0 0� �
00000000 0d 00 0a 11 f4 20 3e 20 44 52 41 57 4c 49 4e 45 |..... > DRAWLINE| 00000010 43 0d 00 14 04 0d 00 1e 09 eb 32 31 3a 87 0d 00 |C.........21:...| 00000020 28 31 c8 99 22 4f 53 5f 52 65 61 64 4d 6f 64 65 |(1.."OS_ReadMode| 00000030 56 61 72 69 61 62 6c 65 22 2c 2d 31 2c 34 20 b8 |Variable",-1,4 .| 00000040 2c 2c 53 58 25 3a 53 58 25 3d 32 5e 53 58 25 0d |,,SX%:SX%=2^SX%.| 00000050 00 32 31 c8 99 22 4f 53 5f 52 65 61 64 4d 6f 64 |.21.."OS_ReadMod| 00000060 65 56 61 72 69 61 62 6c 65 22 2c 2d 31 2c 35 20 |eVariable",-1,5 | 00000070 b8 2c 2c 53 59 25 3a 53 59 25 3d 32 5e 53 59 25 |.,,SY%:SY%=2^SY%| 00000080 0d 00 3c 28 c8 99 22 4f 53 5f 52 65 61 64 4d 6f |..<(.."OS_ReadMo| 00000090 64 65 56 61 72 69 61 62 6c 65 22 2c 2d 31 2c 31 |deVariable",-1,1| 000000a0 31 20 b8 2c 2c 58 53 25 0d 00 46 28 c8 99 22 4f |1 .,,XS%..F(.."O| 000000b0 53 5f 52 65 61 64 4d 6f 64 65 56 61 72 69 61 62 |S_ReadModeVariab| 000000c0 6c 65 22 2c 2d 31 2c 31 32 20 b8 2c 2c 59 53 25 |le",-1,12 .,,YS%| 000000d0 0d 00 50 1d 57 25 3d 53 58 25 2a 58 53 25 2d 31 |..P.W%=SX%*XS%-1| 000000e0 3a 48 25 3d 53 59 25 2a 59 53 25 2d 31 0d 00 5a |:H%=SY%*YS%-1..Z| 000000f0 04 0d 00 64 16 de 20 50 41 54 48 25 20 31 30 30 |...d.. PATH% 100| 00000100 2c 4a 43 25 20 31 35 0d 00 6e 24 4a 43 25 21 30 |,JC% 15..n$JC%!0| 00000110 3d 30 3a 4a 43 25 21 34 3d 30 3a 4a 43 25 21 38 |=0:JC%!4=0:JC%!8| 00000120 3d 30 3a 4a 43 25 21 31 32 3d 30 0d 00 78 04 0d |=0:JC%!12=0..x..| 00000130 00 82 05 f5 0d 00 8c 0d 42 25 3d b3 28 31 32 38 |........B%=.(128| 00000140 29 0d 00 96 27 58 31 25 3d b3 28 57 25 2d 42 25 |)...'X1%=.(W%-B%| 00000150 29 2b 42 25 2f 32 3a 59 31 25 3d b3 28 48 25 2d |)+B%/2:Y1%=.(H%-| 00000160 42 25 29 2b 42 25 2f 32 0d 00 a0 27 58 32 25 3d |B%)+B%/2...'X2%=| 00000170 b3 28 57 25 2d 42 25 29 2b 42 25 2f 32 3a 59 32 |.(W%-B%)+B%/2:Y2| 00000180 25 3d b3 28 48 25 2d 42 25 29 2b 42 25 2f 32 0d |%=.(H%-B%)+B%/2.| 00000190 00 aa 38 f5 3a 52 31 25 3d b3 28 32 35 35 29 3a |..8.:R1%=.(255):| 000001a0 47 31 25 3d b3 28 32 35 35 29 3a 42 31 25 3d b3 |G1%=.(255):B1%=.| 000001b0 28 32 35 35 29 3a fd 52 31 25 2b 47 31 25 2b 42 |(255):.R1%+G1%+B| 000001c0 31 25 3c 3d 32 35 35 0d 00 b4 38 f5 3a 52 32 25 |1%<=255...8.:R2%| 000001d0 3d b3 28 32 35 35 29 3a 47 32 25 3d b3 28 32 35 |=.(255):G2%=.(25| 000001e0 35 29 3a 42 32 25 3d b3 28 32 35 35 29 3a fd 52 |5):B2%=.(255):.R| 000001f0 32 25 2b 47 32 25 2b 42 32 25 3e 3d 35 31 31 0d |2%+G2%+B2%>=511.| 00000200 00 be 35 f2 4c 49 4e 45 28 58 31 25 2c 59 31 25 |..5.LINE(X1%,Y1%| 00000210 2c 52 31 25 2c 47 31 25 2c 42 31 25 2c 58 32 25 |,R1%,G1%,B1%,X2%| 00000220 2c 59 32 25 2c 52 32 25 2c 47 32 25 2c 42 32 25 |,Y2%,R2%,G2%,B2%| 00000230 2c 42 25 29 0d 00 c8 06 fd 30 0d 00 d2 04 0d 00 |,B%).....0......| 00000240 dc 31 dd f2 4c 49 4e 45 28 58 31 2c 59 31 2c 52 |.1..LINE(X1,Y1,R| 00000250 31 25 2c 47 31 25 2c 42 31 25 2c 58 32 2c 59 32 |1%,G1%,B1%,X2,Y2| 00000260 2c 52 32 25 2c 47 32 25 2c 42 32 25 2c 42 29 0d |,R2%,G2%,B2%,B).| 00000270 00 e6 26 ea 20 4c 2c 4b 25 2c 4e 25 2c 4e 31 25 |..&. L,K%,N%,N1%| 00000280 2c 58 41 2c 59 41 2c 58 42 2c 59 42 2c 52 25 2c |,XA,YA,XB,YB,R%,| 00000290 47 25 2c 42 25 0d 00 f0 1c 4c 3d b6 28 28 58 32 |G%,B%....L=.((X2| 000002a0 2d 58 31 29 5e 32 2b 28 59 32 2d 59 31 29 5e 32 |-X1)^2+(Y2-Y1)^2| 000002b0 29 0d 00 fa 21 4b 25 3d 4c 2f 38 2b b3 28 38 29 |)...!K%=L/8+.(8)| 000002c0 3a e7 4b 25 3c 33 32 20 4b 25 3d 32 34 2b b3 28 |:.K%<32 K%=24+.(| 000002d0 38 29 0d 01 04 1d 58 41 3d 28 58 31 2b 58 32 29 |8)....XA=(X1+X2)| 000002e0 2f 32 3a 59 41 3d 28 59 31 2b 59 32 29 2f 32 0d |/2:YA=(Y1+Y2)/2.| 000002f0 01 0e 35 4a 43 25 21 30 3d 26 30 31 30 30 30 30 |..5JC%!0=&010000| 00000300 3a f2 52 47 42 28 52 31 25 2c 47 31 25 2c 42 31 |:.RGB(R1%,G1%,B1| 00000310 25 29 3a f2 4c 28 58 31 2c 59 31 2c 58 41 2c 59 |%):.L(X1,Y1,XA,Y| 00000320 41 2c 42 29 0d 01 18 35 4a 43 25 21 30 3d 26 30 |A,B)...5JC%!0=&0| 00000330 30 30 31 30 30 3a f2 52 47 42 28 52 32 25 2c 47 |00100:.RGB(R2%,G| 00000340 32 25 2c 42 32 25 29 3a f2 4c 28 58 41 2c 59 41 |2%,B2%):.L(XA,YA| 00000350 2c 58 32 2c 59 32 2c 42 29 0d 01 22 11 4a 43 25 |,X2,Y2,B)..".JC%| 00000360 21 30 3d 26 30 30 30 30 30 30 0d 01 2c 16 e3 4e |!0=&000000..,..N| 00000370 25 3d 32 b8 4b 25 3a 4e 31 25 3d 4b 25 2d 4e 25 |%=2.K%:N1%=K%-N%| 00000380 0d 01 36 41 58 41 3d 28 58 31 25 2a 28 4e 25 2d |..6AXA=(X1%*(N%-| 00000390 32 29 2b 58 32 25 2a 28 4e 31 25 2b 32 29 29 2f |2)+X2%*(N1%+2))/| 000003a0 4b 25 3a 59 41 3d 28 59 31 25 2a 28 4e 25 2d 32 |K%:YA=(Y1%*(N%-2| 000003b0 29 2b 59 32 25 2a 28 4e 31 25 2b 32 29 29 2f 4b |)+Y2%*(N1%+2))/K| 000003c0 25 0d 01 40 2d 58 42 3d 28 58 31 2a 4e 25 2b 58 |%..@-XB=(X1*N%+X| 000003d0 32 2a 4e 31 25 29 2f 4b 25 3a 59 42 3d 28 59 31 |2*N1%)/K%:YB=(Y1| 000003e0 2a 4e 25 2b 59 32 2a 4e 31 25 29 2f 4b 25 0d 01 |*N%+Y2*N1%)/K%..| 000003f0 4a 41 52 25 3d 28 28 4e 25 2d 32 29 2a 52 31 25 |JAR%=((N%-2)*R1%| 00000400 2b 28 4e 31 25 2b 32 29 2a 52 32 25 29 2f 4b 25 |+(N1%+2)*R2%)/K%| 00000410 3a 47 25 3d 28 28 4e 25 2d 32 29 2a 47 31 25 2b |:G%=((N%-2)*G1%+| 00000420 28 4e 31 25 2b 32 29 2a 47 32 25 29 2f 4b 25 0d |(N1%+2)*G2%)/K%.| 00000430 01 54 31 42 25 3d 28 28 4e 25 2d 32 29 2a 42 31 |.T1B%=((N%-2)*B1| 00000440 25 2b 28 4e 31 25 2b 32 29 2a 42 32 25 29 2f 4b |%+(N1%+2)*B2%)/K| 00000450 25 3a f2 52 47 42 28 52 25 2c 47 25 2c 42 25 29 |%:.RGB(R%,G%,B%)| 00000460 0d 01 5e 15 f2 4c 28 58 41 2c 59 41 2c 58 42 2c |..^..L(XA,YA,XB,| 00000470 59 42 2c 42 29 0d 01 68 05 ed 0d 01 72 3d 58 41 |YB,B)..h....r=XA| 00000480 3d 28 58 31 25 2a 28 4b 25 2d 31 29 2b 58 32 25 |=(X1%*(K%-1)+X2%| 00000490 29 2f 4b 25 3a 59 41 3d 28 59 31 25 2a 28 4b 25 |)/K%:YA=(Y1%*(K%| 000004a0 2d 31 29 2b 59 32 25 29 2f 4b 25 3a 58 42 3d 58 |-1)+Y2%)/K%:XB=X| 000004b0 31 3a 59 42 3d 59 31 0d 01 7c 31 52 25 3d 28 28 |1:YB=Y1..|1R%=((| 000004c0 4b 25 2d 31 29 2a 52 31 25 2b 52 32 25 29 2f 4b |K%-1)*R1%+R2%)/K| 000004d0 25 3a 47 25 3d 28 28 4b 25 2d 31 29 2a 47 31 25 |%:G%=((K%-1)*G1%| 000004e0 2b 47 32 25 29 2f 4b 25 0d 01 86 29 42 25 3d 28 |+G2%)/K%...)B%=(| 000004f0 28 4b 25 2d 31 29 2a 42 31 25 2b 42 32 25 29 2f |(K%-1)*B1%+B2%)/| 00000500 4b 25 3a f2 52 47 42 28 52 25 2c 47 25 2c 42 25 |K%:.RGB(R%,G%,B%| 00000510 29 0d 01 90 15 f2 4c 28 58 41 2c 59 41 2c 58 42 |).....L(XA,YA,XB| 00000520 2c 59 42 2c 42 29 0d 01 9a 05 e1 0d 01 a4 04 0d |,YB,B)..........| 00000530 01 ae 16 dd f2 4c 28 58 31 2c 59 31 2c 58 32 2c |.....L(X1,Y1,X2,| 00000540 59 32 2c 42 29 0d 01 b8 0b ea 20 50 50 25 2c 57 |Y2,B)..... PP%,W| 00000550 0d 01 c2 2b 58 31 3d 32 35 36 2a 58 31 3a 59 31 |...+X1=256*X1:Y1| 00000560 3d 32 35 36 2a 59 31 3a 58 32 3d 32 35 36 2a 58 |=256*Y1:X2=256*X| 00000570 32 3a 59 32 3d 32 35 36 2a 59 32 0d 01 cc 3e 50 |2:Y2=256*Y2...>P| 00000580 41 54 48 25 21 50 50 25 3d 32 3a 50 50 25 2b 3d |ATH%!PP%=2:PP%+=| 00000590 34 3a 50 41 54 48 25 21 50 50 25 3d 58 31 3a 50 |4:PATH%!PP%=X1:P| 000005a0 50 25 2b 3d 34 3a 50 41 54 48 25 21 50 50 25 3d |P%+=4:PATH%!PP%=| 000005b0 59 31 3a 50 50 25 2b 3d 34 0d 01 d6 3e 50 41 54 |Y1:PP%+=4...>PAT| 000005c0 48 25 21 50 50 25 3d 38 3a 50 50 25 2b 3d 34 3a |H%!PP%=8:PP%+=4:| 000005d0 50 41 54 48 25 21 50 50 25 3d 58 32 3a 50 50 25 |PATH%!PP%=X2:PP%| 000005e0 2b 3d 34 3a 50 41 54 48 25 21 50 50 25 3d 59 32 |+=4:PATH%!PP%=Y2| 000005f0 3a 50 50 25 2b 3d 34 0d 01 e0 24 50 41 54 48 25 |:PP%+=4...$PATH%| 00000600 21 50 50 25 3d 30 3a 50 50 25 2b 3d 34 3a 50 41 |!PP%=0:PP%+=4:PA| 00000610 54 48 25 21 50 50 25 3d 50 50 25 0d 01 ea 0b 57 |TH%!PP%=PP%....W| 00000620 3d 32 35 36 2a 42 0d 01 f4 27 c8 99 22 44 72 61 |=256*B...'.."Dra| 00000630 77 5f 53 74 72 6f 6b 65 22 2c 50 41 54 48 25 2c |w_Stroke",PATH%,| 00000640 30 2c 30 2c 30 2c 57 2c 4a 43 25 2c 30 0d 01 fe |0,0,0,W,JC%,0...| 00000650 05 e1 0d 02 08 04 0d 02 12 13 dd f2 52 47 42 28 |............RGB(| 00000660 52 25 2c 47 25 2c 42 25 29 0d 02 1c 25 ea 20 43 |R%,G%,B%)...%. C| 00000670 25 3a 43 25 3d 28 52 25 3c 3c 38 29 2b 28 47 25 |%:C%=(R%<<8)+(G%| 00000680 3c 3c 31 36 29 2b 28 42 25 3c 3c 32 34 29 0d 02 |<<16)+(B%<<24)..| 00000690 26 28 c8 99 20 22 43 6f 6c 6f 75 72 54 72 61 6e |&(.. "ColourTran| 000006a0 73 5f 53 65 74 47 43 4f 4c 22 2c 43 25 2c 2c 2c |s_SetGCOL",C%,,,| 000006b0 26 31 30 30 2c 30 0d 02 30 05 e1 0d ff |&100,0..0....| 000006bd
.