Home » Recent acquisitions » Acorn ADFS disks » adfs_ArchimedesWorld_199403_2.adf » Disk2Mar94 » !AWMar94/Goodies/yass/!Yass2/Savers/Lines
!AWMar94/Goodies/yass/!Yass2/Savers/Lines
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 » Recent acquisitions » Acorn ADFS disks » adfs_ArchimedesWorld_199403_2.adf » Disk2Mar94 |
Filename: | !AWMar94/Goodies/yass/!Yass2/Savers/Lines |
Read OK: | ✔ |
File size: | 0528 bytes |
Load address: | 0000 |
Exec address: | 0000 |
File contents
10REM 20REM Yass 2 Screen Saver - Lines 30REM 40REM LEN copyright 1993, Ian Palmer 41REM 50 60DEFFNlines_start 70LOCAL A% 80PROCclearscreen(-1) 90line_buffer%=FNmalloc(256):IF line_buffer%=0 THEN =TRUE 100FOR A%=0 TO 15:!(line_buffer%+A%*16)=-1:NEXT 110line_ptr%=0:line_col%=RND(8)+7:line_dx1%=RND(65)-33:line_dy1%=RND(65)-3 120line_dx2%=RND(65)-33:line_dy2%=RND(65)-33 130line_x1%=RND(max_x%):line_x2%=RND(max_x%):line_y1%=RND(max_y%):line_y2%=RND(max_y%) 140=0 150 160DEFFNlines_poll 170LOCAL A% 180PROCset_colour(3,line_col%) 190A%=line_ptr% 200IF !(line_buffer%+A%*16)<>-1 THEN 210 MOVE !(line_buffer%+A%*16),!(line_buffer%+A%*16+4) 220 DRAW !(line_buffer%+A%*16+8),!(line_buffer%+A%*16+12) 230ENDIF 240!(line_buffer%+A%*16)=line_x1%:!(line_buffer%+A%*16+8)=line_x2% 250!(line_buffer%+A%*16+4)=line_y1%:!(line_buffer%+A%*16+12)=line_y2% 260MOVE line_x1%,line_y1%:DRAW line_x2%,line_y2% 270line_x1%+=line_dx1%:IF line_x1%<0 OR line_x1%>max_x% THEN line_x1%-=line_dx1%:line_dx1%=-line_dx1% 280line_x2%+=line_dx2%:IF line_x2%<0 OR line_x2%>max_x% THEN line_x2%-=line_dx2%:line_dx2%=-line_dx2% 290line_y1%+=line_dy1%:IF line_y1%<0 OR line_y1%>max_y% THEN line_y1%-=line_dy1%:line_dy1%=-line_dy1% 300line_y2%+=line_dy2%:IF line_y2%<0 OR line_y2%>max_y% THEN line_y2%-=line_dy2%:line_dy2%=-line_dy2% 310line_ptr%=(line_ptr%+1)MOD 16 320IF now_going%>9000 THEN =TRUE 330=FALSE 340 350DEFFNlines_stop 360PROCfree(line_buffer%) 370=0
� !� Yass 2 Screen Saver - Lines � ("� � copyright 1993, Ian Palmer )� 2 <ݤlines_start F� A% P�clearscreen(-1) Z3line_buffer%=�malloc(256):� line_buffer%=0 � =� d*� A%=0 � 15:!(line_buffer%+A%*16)=-1:� nEline_ptr%=0:line_col%=�(8)+7:line_dx1%=�(65)-33:line_dy1%=�(65)-3 x)line_dx2%=�(65)-33:line_dy2%=�(65)-33 �Oline_x1%=�(max_x%):line_x2%=�(max_x%):line_y1%=�(max_y%):line_y2%=�(max_y%) �=0 � �ݤlines_poll �� A% ��set_colour(3,line_col%) �A%=line_ptr% �!� !(line_buffer%+A%*16)<>-1 � �5 � !(line_buffer%+A%*16),!(line_buffer%+A%*16+4) �8 � !(line_buffer%+A%*16+8),!(line_buffer%+A%*16+12) �� �C!(line_buffer%+A%*16)=line_x1%:!(line_buffer%+A%*16+8)=line_x2% �F!(line_buffer%+A%*16+4)=line_y1%:!(line_buffer%+A%*16+12)=line_y2% +� line_x1%,line_y1%:� line_x2%,line_y2% aline_x1%+=line_dx1%:� line_x1%<0 � line_x1%>max_x% � line_x1%-=line_dx1%:line_dx1%=-line_dx1% aline_x2%+=line_dx2%:� line_x2%<0 � line_x2%>max_x% � line_x2%-=line_dx2%:line_dx2%=-line_dx2% "aline_y1%+=line_dy1%:� line_y1%<0 � line_y1%>max_y% � line_y1%-=line_dy1%:line_dy1%=-line_dy1% ,aline_y2%+=line_dy2%:� line_y2%<0 � line_y2%>max_y% � line_y2%-=line_dy2%:line_dy2%=-line_dy2% 6line_ptr%=(line_ptr%+1)� 16 @� now_going%>9000 � =� J=� T ^ݤlines_stop h�free(line_buffer%) r=0 �
00000000 0d 00 0a 05 f4 0d 00 14 21 f4 20 59 61 73 73 20 |........!. Yass | 00000010 32 20 53 63 72 65 65 6e 20 53 61 76 65 72 20 2d |2 Screen Saver -| 00000020 20 4c 69 6e 65 73 0d 00 1e 05 f4 0d 00 28 22 f4 | Lines.......(".| 00000030 20 a9 20 63 6f 70 79 72 69 67 68 74 20 31 39 39 | . copyright 199| 00000040 33 2c 20 49 61 6e 20 50 61 6c 6d 65 72 0d 00 29 |3, Ian Palmer..)| 00000050 05 f4 0d 00 32 04 0d 00 3c 11 dd a4 6c 69 6e 65 |....2...<...line| 00000060 73 5f 73 74 61 72 74 0d 00 46 08 ea 20 41 25 0d |s_start..F.. A%.| 00000070 00 50 14 f2 63 6c 65 61 72 73 63 72 65 65 6e 28 |.P..clearscreen(| 00000080 2d 31 29 0d 00 5a 33 6c 69 6e 65 5f 62 75 66 66 |-1)..Z3line_buff| 00000090 65 72 25 3d a4 6d 61 6c 6c 6f 63 28 32 35 36 29 |er%=.malloc(256)| 000000a0 3a e7 20 6c 69 6e 65 5f 62 75 66 66 65 72 25 3d |:. line_buffer%=| 000000b0 30 20 8c 20 3d b9 0d 00 64 2a e3 20 41 25 3d 30 |0 . =...d*. A%=0| 000000c0 20 b8 20 31 35 3a 21 28 6c 69 6e 65 5f 62 75 66 | . 15:!(line_buf| 000000d0 66 65 72 25 2b 41 25 2a 31 36 29 3d 2d 31 3a ed |fer%+A%*16)=-1:.| 000000e0 0d 00 6e 45 6c 69 6e 65 5f 70 74 72 25 3d 30 3a |..nEline_ptr%=0:| 000000f0 6c 69 6e 65 5f 63 6f 6c 25 3d b3 28 38 29 2b 37 |line_col%=.(8)+7| 00000100 3a 6c 69 6e 65 5f 64 78 31 25 3d b3 28 36 35 29 |:line_dx1%=.(65)| 00000110 2d 33 33 3a 6c 69 6e 65 5f 64 79 31 25 3d b3 28 |-33:line_dy1%=.(| 00000120 36 35 29 2d 33 0d 00 78 29 6c 69 6e 65 5f 64 78 |65)-3..x)line_dx| 00000130 32 25 3d b3 28 36 35 29 2d 33 33 3a 6c 69 6e 65 |2%=.(65)-33:line| 00000140 5f 64 79 32 25 3d b3 28 36 35 29 2d 33 33 0d 00 |_dy2%=.(65)-33..| 00000150 82 4f 6c 69 6e 65 5f 78 31 25 3d b3 28 6d 61 78 |.Oline_x1%=.(max| 00000160 5f 78 25 29 3a 6c 69 6e 65 5f 78 32 25 3d b3 28 |_x%):line_x2%=.(| 00000170 6d 61 78 5f 78 25 29 3a 6c 69 6e 65 5f 79 31 25 |max_x%):line_y1%| 00000180 3d b3 28 6d 61 78 5f 79 25 29 3a 6c 69 6e 65 5f |=.(max_y%):line_| 00000190 79 32 25 3d b3 28 6d 61 78 5f 79 25 29 0d 00 8c |y2%=.(max_y%)...| 000001a0 06 3d 30 0d 00 96 04 0d 00 a0 10 dd a4 6c 69 6e |.=0..........lin| 000001b0 65 73 5f 70 6f 6c 6c 0d 00 aa 08 ea 20 41 25 0d |es_poll..... A%.| 000001c0 00 b4 1c f2 73 65 74 5f 63 6f 6c 6f 75 72 28 33 |....set_colour(3| 000001d0 2c 6c 69 6e 65 5f 63 6f 6c 25 29 0d 00 be 10 41 |,line_col%)....A| 000001e0 25 3d 6c 69 6e 65 5f 70 74 72 25 0d 00 c8 21 e7 |%=line_ptr%...!.| 000001f0 20 21 28 6c 69 6e 65 5f 62 75 66 66 65 72 25 2b | !(line_buffer%+| 00000200 41 25 2a 31 36 29 3c 3e 2d 31 20 8c 0d 00 d2 35 |A%*16)<>-1 ....5| 00000210 20 20 ec 20 21 28 6c 69 6e 65 5f 62 75 66 66 65 | . !(line_buffe| 00000220 72 25 2b 41 25 2a 31 36 29 2c 21 28 6c 69 6e 65 |r%+A%*16),!(line| 00000230 5f 62 75 66 66 65 72 25 2b 41 25 2a 31 36 2b 34 |_buffer%+A%*16+4| 00000240 29 0d 00 dc 38 20 20 df 20 21 28 6c 69 6e 65 5f |)...8 . !(line_| 00000250 62 75 66 66 65 72 25 2b 41 25 2a 31 36 2b 38 29 |buffer%+A%*16+8)| 00000260 2c 21 28 6c 69 6e 65 5f 62 75 66 66 65 72 25 2b |,!(line_buffer%+| 00000270 41 25 2a 31 36 2b 31 32 29 0d 00 e6 05 cd 0d 00 |A%*16+12).......| 00000280 f0 43 21 28 6c 69 6e 65 5f 62 75 66 66 65 72 25 |.C!(line_buffer%| 00000290 2b 41 25 2a 31 36 29 3d 6c 69 6e 65 5f 78 31 25 |+A%*16)=line_x1%| 000002a0 3a 21 28 6c 69 6e 65 5f 62 75 66 66 65 72 25 2b |:!(line_buffer%+| 000002b0 41 25 2a 31 36 2b 38 29 3d 6c 69 6e 65 5f 78 32 |A%*16+8)=line_x2| 000002c0 25 0d 00 fa 46 21 28 6c 69 6e 65 5f 62 75 66 66 |%...F!(line_buff| 000002d0 65 72 25 2b 41 25 2a 31 36 2b 34 29 3d 6c 69 6e |er%+A%*16+4)=lin| 000002e0 65 5f 79 31 25 3a 21 28 6c 69 6e 65 5f 62 75 66 |e_y1%:!(line_buf| 000002f0 66 65 72 25 2b 41 25 2a 31 36 2b 31 32 29 3d 6c |fer%+A%*16+12)=l| 00000300 69 6e 65 5f 79 32 25 0d 01 04 2b ec 20 6c 69 6e |ine_y2%...+. lin| 00000310 65 5f 78 31 25 2c 6c 69 6e 65 5f 79 31 25 3a df |e_x1%,line_y1%:.| 00000320 20 6c 69 6e 65 5f 78 32 25 2c 6c 69 6e 65 5f 79 | line_x2%,line_y| 00000330 32 25 0d 01 0e 61 6c 69 6e 65 5f 78 31 25 2b 3d |2%...aline_x1%+=| 00000340 6c 69 6e 65 5f 64 78 31 25 3a e7 20 6c 69 6e 65 |line_dx1%:. line| 00000350 5f 78 31 25 3c 30 20 84 20 6c 69 6e 65 5f 78 31 |_x1%<0 . line_x1| 00000360 25 3e 6d 61 78 5f 78 25 20 8c 20 6c 69 6e 65 5f |%>max_x% . line_| 00000370 78 31 25 2d 3d 6c 69 6e 65 5f 64 78 31 25 3a 6c |x1%-=line_dx1%:l| 00000380 69 6e 65 5f 64 78 31 25 3d 2d 6c 69 6e 65 5f 64 |ine_dx1%=-line_d| 00000390 78 31 25 0d 01 18 61 6c 69 6e 65 5f 78 32 25 2b |x1%...aline_x2%+| 000003a0 3d 6c 69 6e 65 5f 64 78 32 25 3a e7 20 6c 69 6e |=line_dx2%:. lin| 000003b0 65 5f 78 32 25 3c 30 20 84 20 6c 69 6e 65 5f 78 |e_x2%<0 . line_x| 000003c0 32 25 3e 6d 61 78 5f 78 25 20 8c 20 6c 69 6e 65 |2%>max_x% . line| 000003d0 5f 78 32 25 2d 3d 6c 69 6e 65 5f 64 78 32 25 3a |_x2%-=line_dx2%:| 000003e0 6c 69 6e 65 5f 64 78 32 25 3d 2d 6c 69 6e 65 5f |line_dx2%=-line_| 000003f0 64 78 32 25 0d 01 22 61 6c 69 6e 65 5f 79 31 25 |dx2%.."aline_y1%| 00000400 2b 3d 6c 69 6e 65 5f 64 79 31 25 3a e7 20 6c 69 |+=line_dy1%:. li| 00000410 6e 65 5f 79 31 25 3c 30 20 84 20 6c 69 6e 65 5f |ne_y1%<0 . line_| 00000420 79 31 25 3e 6d 61 78 5f 79 25 20 8c 20 6c 69 6e |y1%>max_y% . lin| 00000430 65 5f 79 31 25 2d 3d 6c 69 6e 65 5f 64 79 31 25 |e_y1%-=line_dy1%| 00000440 3a 6c 69 6e 65 5f 64 79 31 25 3d 2d 6c 69 6e 65 |:line_dy1%=-line| 00000450 5f 64 79 31 25 0d 01 2c 61 6c 69 6e 65 5f 79 32 |_dy1%..,aline_y2| 00000460 25 2b 3d 6c 69 6e 65 5f 64 79 32 25 3a e7 20 6c |%+=line_dy2%:. l| 00000470 69 6e 65 5f 79 32 25 3c 30 20 84 20 6c 69 6e 65 |ine_y2%<0 . line| 00000480 5f 79 32 25 3e 6d 61 78 5f 79 25 20 8c 20 6c 69 |_y2%>max_y% . li| 00000490 6e 65 5f 79 32 25 2d 3d 6c 69 6e 65 5f 64 79 32 |ne_y2%-=line_dy2| 000004a0 25 3a 6c 69 6e 65 5f 64 79 32 25 3d 2d 6c 69 6e |%:line_dy2%=-lin| 000004b0 65 5f 64 79 32 25 0d 01 36 1f 6c 69 6e 65 5f 70 |e_dy2%..6.line_p| 000004c0 74 72 25 3d 28 6c 69 6e 65 5f 70 74 72 25 2b 31 |tr%=(line_ptr%+1| 000004d0 29 83 20 31 36 0d 01 40 1a e7 20 6e 6f 77 5f 67 |). 16..@.. now_g| 000004e0 6f 69 6e 67 25 3e 39 30 30 30 20 8c 20 3d b9 0d |oing%>9000 . =..| 000004f0 01 4a 06 3d a3 0d 01 54 04 0d 01 5e 10 dd a4 6c |.J.=...T...^...l| 00000500 69 6e 65 73 5f 73 74 6f 70 0d 01 68 17 f2 66 72 |ines_stop..h..fr| 00000510 65 65 28 6c 69 6e 65 5f 62 75 66 66 65 72 25 29 |ee(line_buffer%)| 00000520 0d 01 72 06 3d 30 0d ff |..r.=0..| 00000528