Home » Archimedes archive » Acorn User » AU 1995-05.adf » !StarInfo_StarInfo » Vibe/RiscPC/RGBtree
Vibe/RiscPC/RGBtree
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 1995-05.adf » !StarInfo_StarInfo |
| Filename: | Vibe/RiscPC/RGBtree |
| Read OK: | ✔ |
| File size: | 0674 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM >RGBtree
11REM by Jan Vibe
12REM (Risc PC version)
13REM (c) AU May 1995
20
30PROCmode("X640 Y480 C32K"):OFF
40PROCA(640,0,280,48,0,RND(255),RND(255),RND(255))
50END
60
70DEFPROCA(X%,Y%,L%,W%,A%,R%,G%,B%)
80LOCAL X1%,Y1%,W1%,R1%,G1%,B1%
90X1%=X%+L%*SINRADA%:Y1%=Y%+L%*COSRADA%:W1%=W%*.72
100R1%=RND(255):G1%=RND(255):B1%=RND(255)
110PROCL(X%,Y%,W%,X1%,Y1%,W1%,R%,G%,B%,R1%,G1%,B1%)
120IF L%>16 THEN
130PROCA(X1%,Y1%,L%/1.4,W1%,A%-45,R1%,G1%,B1%)
140PROCA(X1%,Y1%,L%/1.4,W1%,A%+45,R1%,G1%,B1%)
150ENDIF
160ENDPROC
170
180DEFPROCL(X1%,Y1%,W1%,X2%,Y2%,W2%,R1%,G1%,B1%,R2%,G2%,B2%)
190LOCAL D%,S%,A%,N%,N1%,W%,X%,Y%,R%,G%,B%
200D%=SQR((X2%-X1%)^2+(Y2%-Y1%)^2)
210S%=W1%/1.5:IF W2%<W1% S%=W2%/1.5
220IF S%=0 S%=1
230A%=D%/S%:IF A%<31 A%=31
240FORN%=0TOA%:N1%=A%-N%
250W%=(N1%*W1%+N%*W2%)/A%:X%=(N1%*X1%+N%*X2%)/A%:Y%=(N1%*Y1%+N%*Y2%)/A%
260R%=(N1%*R1%+N%*R2%)/A%:G%=(N1%*G1%+N%*G2%)/A%:B%=(N1%*B1%+N%*B2%)/A%
270GCOL R%,G%,B%:CIRCLE FILL X%,Y%,W%
280NEXT
290ENDPROC
300:
420DEF PROCmode(mode$)
430LOCAL c$,ex,ey,mode,end
440DIM mode 64
450end=mode+20
460!mode=1
470mode!4=VALFN_m(mode$,"X","")
480mode!8=VALFN_m(mode$,"Y","")
490c$=FN_m(mode$,"C","*")
500IF c$="*" THEN
510 c$=FN_m(mode$,"G","")
520 IF c$="256" !end=3:end!4=255:end+=8
530ENDIF
540mode!12=FN_bpp(c$)
550mode!16=VALFN_m(mode$,"F","-1")
560ex=VALFN_m(mode$,"EX","-1")
570IF ex<>-1 !end=4:end!4=ex:end+=8
580ey=VALFN_m(mode$,"EY","-1")
590IF ey<>-1 !end=5:end!4=ey:end+=8
600!end=-1
610MODE mode
620ENDPROC
630
640DEF FN_m(s$,p$,d$)
650LOCAL i,j
660i=INSTR(s$,p$)
670IF i<1 AND d$="" ERROR 490,"Missing "+p$
680IF i<1 THEN =d$
690j=INSTR(s$+" "," ",i+1)
700=MID$(s$,i+1,j-i-1)
710
720DEF FN_bpp(n$)
730CASE n$ OF
740 WHEN "2":=0
750 WHEN "4":=1
760 WHEN "16":=2
770 WHEN "256":=3
780 WHEN "32T","32t","32K","32k":=4
790 WHEN "16M","16m":=5
800 OTHERWISE: ERROR 490,"Bad parameter "+n$
810ENDCASE
� >RGBtree
� by Jan Vibe
� (Risc PC version)
� (c) AU May 1995
�mode("X640 Y480 C32K"):�
(+�A(640,0,280,48,0,�(255),�(255),�(255))
2�
<
F ��A(X%,Y%,L%,W%,A%,R%,G%,B%)
P � X1%,Y1%,W1%,R1%,G1%,B1%
Z,X1%=X%+L%*��A%:Y1%=Y%+L%*��A%:W1%=W%*.72
d$R1%=�(255):G1%=�(255):B1%=�(255)
n1�L(X%,Y%,W%,X1%,Y1%,W1%,R%,G%,B%,R1%,G1%,B1%)
x
� L%>16 �
�,�A(X1%,Y1%,L%/1.4,W1%,A%-45,R1%,G1%,B1%)
�,�A(X1%,Y1%,L%/1.4,W1%,A%+45,R1%,G1%,B1%)
��
��
�
�8��L(X1%,Y1%,W1%,X2%,Y2%,W2%,R1%,G1%,B1%,R2%,G2%,B2%)
�'� D%,S%,A%,N%,N1%,W%,X%,Y%,R%,G%,B%
�!D%=�((X2%-X1%)^2+(Y2%-Y1%)^2)
�#S%=W1%/1.5:� W2%<W1% S%=W2%/1.5
�� S%=0 S%=1
�A%=D%/S%:� A%<31 A%=31
��N%=0�A%:N1%=A%-N%
�HW%=(N1%*W1%+N%*W2%)/A%:X%=(N1%*X1%+N%*X2%)/A%:Y%=(N1%*Y1%+N%*Y2%)/A%
HR%=(N1%*R1%+N%*R2%)/A%:G%=(N1%*G1%+N%*G2%)/A%:B%=(N1%*B1%+N%*B2%)/A%
� R%,G%,B%:ȏ Ȑ X%,Y%,W%
�
"�
,:
�� �mode(mode$)
�� c$,ex,ey,mode,end
�
� mode 64
�end=mode+20
� !mode=1
� mode!4=��_m(mode$,"X","")
� mode!8=��_m(mode$,"Y","")
�c$=�_m(mode$,"C","*")
�� c$="*" �
� c$=�_m(mode$,"G","")
' � c$="256" !end=3:end!4=255:end+=8
�
mode!12=�_bpp(c$)
& mode!16=��_m(mode$,"F","-1")
0 ex=��_m(mode$,"EX","-1")
:#� ex<>-1 !end=4:end!4=ex:end+=8
D ey=��_m(mode$,"EY","-1")
N#� ey<>-1 !end=5:end!4=ey:end+=8
X !end=-1
b
� mode
l�
v
�� �_m(s$,p$,d$)
� � i,j
�
i=�s$,p$)
�%� i<1 � d$="" � 490,"Missing "+p$
�� i<1 � =d$
�j=�s$+" "," ",i+1)
�=�s$,i+1,j-i-1)
�
�� �_bpp(n$)
� Ȏ n$ �
�
� "2":=0
�
� "4":=1
� � "16":=2
� "256":=3
! � "32T","32t","32K","32k":=4
� "16M","16m":=5
! : � 490,"Bad parameter "+n$
*�
� 00000000 0d 00 0a 12 f4 20 20 20 20 20 3e 52 47 42 74 72 |..... >RGBtr|
00000010 65 65 0d 00 0b 12 f4 20 62 79 20 20 4a 61 6e 20 |ee..... by Jan |
00000020 56 69 62 65 0d 00 0c 17 f4 20 28 52 69 73 63 20 |Vibe..... (Risc |
00000030 50 43 20 76 65 72 73 69 6f 6e 29 0d 00 0d 15 f4 |PC version).....|
00000040 20 28 63 29 20 41 55 20 4d 61 79 20 31 39 39 35 | (c) AU May 1995|
00000050 0d 00 14 04 0d 00 1e 1d f2 6d 6f 64 65 28 22 58 |.........mode("X|
00000060 36 34 30 20 59 34 38 30 20 43 33 32 4b 22 29 3a |640 Y480 C32K"):|
00000070 87 0d 00 28 2b f2 41 28 36 34 30 2c 30 2c 32 38 |...(+.A(640,0,28|
00000080 30 2c 34 38 2c 30 2c b3 28 32 35 35 29 2c b3 28 |0,48,0,.(255),.(|
00000090 32 35 35 29 2c b3 28 32 35 35 29 29 0d 00 32 05 |255),.(255))..2.|
000000a0 e0 0d 00 3c 04 0d 00 46 20 dd f2 41 28 58 25 2c |...<...F ..A(X%,|
000000b0 59 25 2c 4c 25 2c 57 25 2c 41 25 2c 52 25 2c 47 |Y%,L%,W%,A%,R%,G|
000000c0 25 2c 42 25 29 0d 00 50 1d ea 20 58 31 25 2c 59 |%,B%)..P.. X1%,Y|
000000d0 31 25 2c 57 31 25 2c 52 31 25 2c 47 31 25 2c 42 |1%,W1%,R1%,G1%,B|
000000e0 31 25 0d 00 5a 2c 58 31 25 3d 58 25 2b 4c 25 2a |1%..Z,X1%=X%+L%*|
000000f0 b5 b2 41 25 3a 59 31 25 3d 59 25 2b 4c 25 2a 9b |..A%:Y1%=Y%+L%*.|
00000100 b2 41 25 3a 57 31 25 3d 57 25 2a 2e 37 32 0d 00 |.A%:W1%=W%*.72..|
00000110 64 24 52 31 25 3d b3 28 32 35 35 29 3a 47 31 25 |d$R1%=.(255):G1%|
00000120 3d b3 28 32 35 35 29 3a 42 31 25 3d b3 28 32 35 |=.(255):B1%=.(25|
00000130 35 29 0d 00 6e 31 f2 4c 28 58 25 2c 59 25 2c 57 |5)..n1.L(X%,Y%,W|
00000140 25 2c 58 31 25 2c 59 31 25 2c 57 31 25 2c 52 25 |%,X1%,Y1%,W1%,R%|
00000150 2c 47 25 2c 42 25 2c 52 31 25 2c 47 31 25 2c 42 |,G%,B%,R1%,G1%,B|
00000160 31 25 29 0d 00 78 0d e7 20 4c 25 3e 31 36 20 8c |1%)..x.. L%>16 .|
00000170 0d 00 82 2c f2 41 28 58 31 25 2c 59 31 25 2c 4c |...,.A(X1%,Y1%,L|
00000180 25 2f 31 2e 34 2c 57 31 25 2c 41 25 2d 34 35 2c |%/1.4,W1%,A%-45,|
00000190 52 31 25 2c 47 31 25 2c 42 31 25 29 0d 00 8c 2c |R1%,G1%,B1%)...,|
000001a0 f2 41 28 58 31 25 2c 59 31 25 2c 4c 25 2f 31 2e |.A(X1%,Y1%,L%/1.|
000001b0 34 2c 57 31 25 2c 41 25 2b 34 35 2c 52 31 25 2c |4,W1%,A%+45,R1%,|
000001c0 47 31 25 2c 42 31 25 29 0d 00 96 05 cd 0d 00 a0 |G1%,B1%)........|
000001d0 05 e1 0d 00 aa 04 0d 00 b4 38 dd f2 4c 28 58 31 |.........8..L(X1|
000001e0 25 2c 59 31 25 2c 57 31 25 2c 58 32 25 2c 59 32 |%,Y1%,W1%,X2%,Y2|
000001f0 25 2c 57 32 25 2c 52 31 25 2c 47 31 25 2c 42 31 |%,W2%,R1%,G1%,B1|
00000200 25 2c 52 32 25 2c 47 32 25 2c 42 32 25 29 0d 00 |%,R2%,G2%,B2%)..|
00000210 be 27 ea 20 44 25 2c 53 25 2c 41 25 2c 4e 25 2c |.'. D%,S%,A%,N%,|
00000220 4e 31 25 2c 57 25 2c 58 25 2c 59 25 2c 52 25 2c |N1%,W%,X%,Y%,R%,|
00000230 47 25 2c 42 25 0d 00 c8 21 44 25 3d b6 28 28 58 |G%,B%...!D%=.((X|
00000240 32 25 2d 58 31 25 29 5e 32 2b 28 59 32 25 2d 59 |2%-X1%)^2+(Y2%-Y|
00000250 31 25 29 5e 32 29 0d 00 d2 23 53 25 3d 57 31 25 |1%)^2)...#S%=W1%|
00000260 2f 31 2e 35 3a e7 20 57 32 25 3c 57 31 25 20 53 |/1.5:. W2%<W1% S|
00000270 25 3d 57 32 25 2f 31 2e 35 0d 00 dc 0f e7 20 53 |%=W2%/1.5..... S|
00000280 25 3d 30 20 53 25 3d 31 0d 00 e6 1a 41 25 3d 44 |%=0 S%=1....A%=D|
00000290 25 2f 53 25 3a e7 20 41 25 3c 33 31 20 41 25 3d |%/S%:. A%<31 A%=|
000002a0 33 31 0d 00 f0 16 e3 4e 25 3d 30 b8 41 25 3a 4e |31.....N%=0.A%:N|
000002b0 31 25 3d 41 25 2d 4e 25 0d 00 fa 48 57 25 3d 28 |1%=A%-N%...HW%=(|
000002c0 4e 31 25 2a 57 31 25 2b 4e 25 2a 57 32 25 29 2f |N1%*W1%+N%*W2%)/|
000002d0 41 25 3a 58 25 3d 28 4e 31 25 2a 58 31 25 2b 4e |A%:X%=(N1%*X1%+N|
000002e0 25 2a 58 32 25 29 2f 41 25 3a 59 25 3d 28 4e 31 |%*X2%)/A%:Y%=(N1|
000002f0 25 2a 59 31 25 2b 4e 25 2a 59 32 25 29 2f 41 25 |%*Y1%+N%*Y2%)/A%|
00000300 0d 01 04 48 52 25 3d 28 4e 31 25 2a 52 31 25 2b |...HR%=(N1%*R1%+|
00000310 4e 25 2a 52 32 25 29 2f 41 25 3a 47 25 3d 28 4e |N%*R2%)/A%:G%=(N|
00000320 31 25 2a 47 31 25 2b 4e 25 2a 47 32 25 29 2f 41 |1%*G1%+N%*G2%)/A|
00000330 25 3a 42 25 3d 28 4e 31 25 2a 42 31 25 2b 4e 25 |%:B%=(N1%*B1%+N%|
00000340 2a 42 32 25 29 2f 41 25 0d 01 0e 1d e6 20 52 25 |*B2%)/A%..... R%|
00000350 2c 47 25 2c 42 25 3a c8 8f 20 c8 90 20 58 25 2c |,G%,B%:.. .. X%,|
00000360 59 25 2c 57 25 0d 01 18 05 ed 0d 01 22 05 e1 0d |Y%,W%......."...|
00000370 01 2c 05 3a 0d 01 a4 12 dd 20 f2 6d 6f 64 65 28 |.,.:..... .mode(|
00000380 6d 6f 64 65 24 29 0d 01 ae 17 ea 20 63 24 2c 65 |mode$)..... c$,e|
00000390 78 2c 65 79 2c 6d 6f 64 65 2c 65 6e 64 0d 01 b8 |x,ey,mode,end...|
000003a0 0d de 20 6d 6f 64 65 20 36 34 0d 01 c2 0f 65 6e |.. mode 64....en|
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000003c0 64 65 3d 31 0d 01 d6 1d 6d 6f 64 65 21 34 3d bb |de=1....mode!4=.|
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000003e0 29 0d 01 e0 1d 6d 6f 64 65 21 38 3d bb a4 5f 6d |)....mode!8=.._m|
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00000410 43 22 2c 22 2a 22 29 0d 01 f4 0e e7 20 63 24 3d |C","*")..... c$=|
00000420 22 2a 22 20 8c 0d 01 fe 19 20 63 24 3d a4 5f 6d |"*" ..... c$=._m|
00000430 28 6d 6f 64 65 24 2c 22 47 22 2c 22 22 29 0d 02 |(mode$,"G","")..|
00000440 08 27 20 e7 20 63 24 3d 22 32 35 36 22 20 21 65 |.' . c$="256" !e|
00000450 6e 64 3d 33 3a 65 6e 64 21 34 3d 32 35 35 3a 65 |nd=3:end!4=255:e|
00000460 6e 64 2b 3d 38 0d 02 12 05 cd 0d 02 1c 15 6d 6f |nd+=8.........mo|
00000470 64 65 21 31 32 3d a4 5f 62 70 70 28 63 24 29 0d |de!12=._bpp(c$).|
00000480 02 26 20 6d 6f 64 65 21 31 36 3d bb a4 5f 6d 28 |.& mode!16=.._m(|
00000490 6d 6f 64 65 24 2c 22 46 22 2c 22 2d 31 22 29 0d |mode$,"F","-1").|
000004a0 02 30 1c 65 78 3d bb a4 5f 6d 28 6d 6f 64 65 24 |.0.ex=.._m(mode$|
000004b0 2c 22 45 58 22 2c 22 2d 31 22 29 0d 02 3a 23 e7 |,"EX","-1")..:#.|
000004c0 20 65 78 3c 3e 2d 31 20 21 65 6e 64 3d 34 3a 65 | ex<>-1 !end=4:e|
000004d0 6e 64 21 34 3d 65 78 3a 65 6e 64 2b 3d 38 0d 02 |nd!4=ex:end+=8..|
000004e0 44 1c 65 79 3d bb a4 5f 6d 28 6d 6f 64 65 24 2c |D.ey=.._m(mode$,|
000004f0 22 45 59 22 2c 22 2d 31 22 29 0d 02 4e 23 e7 20 |"EY","-1")..N#. |
00000500 65 79 3c 3e 2d 31 20 21 65 6e 64 3d 35 3a 65 6e |ey<>-1 !end=5:en|
00000510 64 21 34 3d 65 79 3a 65 6e 64 2b 3d 38 0d 02 58 |d!4=ey:end+=8..X|
00000520 0b 21 65 6e 64 3d 2d 31 0d 02 62 0a eb 20 6d 6f |.!end=-1..b.. mo|
00000530 64 65 0d 02 6c 05 e1 0d 02 76 04 0d 02 80 13 dd |de..l....v......|
00000540 20 a4 5f 6d 28 73 24 2c 70 24 2c 64 24 29 0d 02 | ._m(s$,p$,d$)..|
00000550 8a 09 ea 20 69 2c 6a 0d 02 94 0d 69 3d a7 73 24 |... i,j....i=.s$|
00000560 2c 70 24 29 0d 02 9e 25 e7 20 69 3c 31 20 80 20 |,p$)...%. i<1 . |
00000570 64 24 3d 22 22 20 85 20 34 39 30 2c 22 4d 69 73 |d$="" . 490,"Mis|
00000580 73 69 6e 67 20 22 2b 70 24 0d 02 a8 0f e7 20 69 |sing "+p$..... i|
00000590 3c 31 20 8c 20 3d 64 24 0d 02 b2 16 6a 3d a7 73 |<1 . =d$....j=.s|
000005a0 24 2b 22 20 22 2c 22 20 22 2c 69 2b 31 29 0d 02 |$+" "," ",i+1)..|
000005b0 bc 13 3d c1 73 24 2c 69 2b 31 2c 6a 2d 69 2d 31 |..=.s$,i+1,j-i-1|
000005c0 29 0d 02 c6 04 0d 02 d0 0f dd 20 a4 5f 62 70 70 |)......... ._bpp|
000005d0 28 6e 24 29 0d 02 da 0b c8 8e 20 6e 24 20 ca 0d |(n$)...... n$ ..|
000005e0 02 e4 0d 20 c9 20 22 32 22 3a 3d 30 0d 02 ee 0d |... . "2":=0....|
000005f0 20 c9 20 22 34 22 3a 3d 31 0d 02 f8 0e 20 c9 20 | . "4":=1.... . |
00000600 22 31 36 22 3a 3d 32 0d 03 02 0f 20 c9 20 22 32 |"16":=2.... . "2|
00000610 35 36 22 3a 3d 33 0d 03 0c 21 20 c9 20 22 33 32 |56":=3...! . "32|
00000620 54 22 2c 22 33 32 74 22 2c 22 33 32 4b 22 2c 22 |T","32t","32K","|
00000630 33 32 6b 22 3a 3d 34 0d 03 16 15 20 c9 20 22 31 |32k":=4.... . "1|
00000640 36 4d 22 2c 22 31 36 6d 22 3a 3d 35 0d 03 20 21 |6M","16m":=5.. !|
00000650 20 7f 3a 20 85 20 34 39 30 2c 22 42 61 64 20 70 | .: . 490,"Bad p|
00000660 61 72 61 6d 65 74 65 72 20 22 2b 6e 24 0d 03 2a |arameter "+n$..*|
00000670 05 cb 0d ff |....|
00000674 
.