Home » Archimedes archive » Acorn User » AU 1998-05 A.adf » Regulars » StarInfo/Vibe/ROTATE2
StarInfo/Vibe/ROTATE2
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 1998-05 A.adf » Regulars |
Filename: | StarInfo/Vibe/ROTATE2 |
Read OK: | ✔ |
File size: | 051F bytes |
Load address: | 0000 |
Exec address: | 0000 |
File contents
10REM > ROTATE2 20 30MODE29 40DIM SPR &10000,ROT 32 50SPR!0=&FFFF:SPR!4=0:SPR!8=16:SPR!12=16 60SYS"OS_SpriteOp",256+15,SPR,"SIGN",0,256,64,29 70 80SYS"OS_SpriteOp",256+60,SPR,"SIGN" 90COLOUR0:COLOUR128+1:CLS 100PRINT'" This procedure demonstrates" 110PRINT" a OS_SpriteOp SWI which can" 120PRINT" rotate a sprite around its" 130PRINT" center and at the same time" 140PRINT" enlarge or diminish the size" 150PRINT" of the sprite." 160GCOL0:RECTANGLE 0,0,511,127 170SYS"OS_SpriteOp",256+60,SPR,0 180 190Z=0 200FOR A%=0TO365STEP2 210Z=Z+0.005 220PROCROT(SPR,"SIGN",800,600,Z,1.5*Z,A%) 230NEXT 240Z1=Z:Z2=1.5*Z 250FORN%=1TO50:Z2=Z2+.10:PROCROT(SPR,"SIGN",800,600,Z1,Z2,A%):NEXT 260FORN%=1TO50:Z1=Z1+.032:PROCROT(SPR,"SIGN",800,600,Z1,Z2,A%):NEXT 270REPEAT 280Z1=.5+1.5*RND(1):Z2=.5+1.5*RND(1):A%=RND(60)+330:X%=RND(1600):Y%=RND(1200) 290PROCROT(SPR,"SIGN",X%,Y%,Z1,Z2,A%) 300UNTIL0 310 320END 330 340DEFPROCROT(SPR,N$,X%,Y%,SX,SY,A%) 350LOCAL XR%,YR%,W%,H% 360SYS"OS_SpriteOp",256+40,SPR,N$ TO ,,,W%,H% 370SX=SX*W%:SY=SY*H% 380XR%=-SX*COSRADA%+SY*SINRADA%:YR%=SY*COSRADA%+SX*SINRADA% 390ROT!00=(XR%+X%)*256:ROT!04=(YR%+Y%)*256 400XR%=SX*COSRADA%+SY*SINRADA%:YR%=SY*COSRADA%-SX*SINRADA% 410ROT!08=(XR%+X%)*256:ROT!12=(YR%+Y%)*256 420XR%=SX*COSRADA%-SY*SINRADA%:YR%=-SY*COSRADA%-SX*SINRADA% 430ROT!16=(XR%+X%)*256:ROT!20=(YR%+Y%)*256 440XR%=-SX*COSRADA%-SY*SINRADA%:YR%=-SY*COSRADA%+SX*SINRADA% 450ROT!24=(XR%+X%)*256:ROT!28=(YR%+Y%)*256 460SYS"OS_SpriteOp",256+56,SPR,N$,1,,8,ROT 470ENDPROC
� > ROTATE2 �29 (� SPR &10000,ROT 32 2*SPR!0=&FFFF:SPR!4=0:SPR!8=16:SPR!12=16 <1ș"OS_SpriteOp",256+15,SPR,"SIGN",0,256,64,29 F P%ș"OS_SpriteOp",256+60,SPR,"SIGN" Z�0:�128+1:� d%�'" This procedure demonstrates" n$�" a OS_SpriteOp SWI which can" x#�" rotate a sprite around its" �$�" center and at the same time" �%�" enlarge or diminish the size" ��" of the sprite." ��0:ȓ 0,0,511,127 � ș"OS_SpriteOp",256+60,SPR,0 � �Z=0 �� A%=0�365�2 � Z=Z+0.005 �'�ROT(SPR,"SIGN",800,600,Z,1.5*Z,A%) �� �Z1=Z:Z2=1.5*Z �:�N%=1�50:Z2=Z2+.10:�ROT(SPR,"SIGN",800,600,Z1,Z2,A%):� ;�N%=1�50:Z1=Z1+.032:�ROT(SPR,"SIGN",800,600,Z1,Z2,A%):� � DZ1=.5+1.5*�(1):Z2=.5+1.5*�(1):A%=�(60)+330:X%=�(1600):Y%=�(1200) "#�ROT(SPR,"SIGN",X%,Y%,Z1,Z2,A%) ,�0 6 @� J T ��ROT(SPR,N$,X%,Y%,SX,SY,A%) ^� XR%,YR%,W%,H% h,ș"OS_SpriteOp",256+40,SPR,N$ � ,,,W%,H% rSX=SX*W%:SY=SY*H% |,XR%=-SX*��A%+SY*��A%:YR%=SY*��A%+SX*��A% �+ROT!00=(XR%+X%)*256:ROT!04=(YR%+Y%)*256 �+XR%=SX*��A%+SY*��A%:YR%=SY*��A%-SX*��A% �+ROT!08=(XR%+X%)*256:ROT!12=(YR%+Y%)*256 �,XR%=SX*��A%-SY*��A%:YR%=-SY*��A%-SX*��A% �+ROT!16=(XR%+X%)*256:ROT!20=(YR%+Y%)*256 �-XR%=-SX*��A%-SY*��A%:YR%=-SY*��A%+SX*��A% �+ROT!24=(XR%+X%)*256:ROT!28=(YR%+Y%)*256 �*ș"OS_SpriteOp",256+56,SPR,N$,1,,8,ROT �� �
00000000 0d 00 0a 0f f4 20 3e 20 52 4f 54 41 54 45 32 0d |..... > ROTATE2.| 00000010 00 14 04 0d 00 1e 07 eb 32 39 0d 00 28 17 de 20 |........29..(.. | 00000020 53 50 52 20 26 31 30 30 30 30 2c 52 4f 54 20 33 |SPR &10000,ROT 3| 00000030 32 0d 00 32 2a 53 50 52 21 30 3d 26 46 46 46 46 |2..2*SPR!0=&FFFF| 00000040 3a 53 50 52 21 34 3d 30 3a 53 50 52 21 38 3d 31 |:SPR!4=0:SPR!8=1| 00000050 36 3a 53 50 52 21 31 32 3d 31 36 0d 00 3c 31 c8 |6:SPR!12=16..<1.| 00000060 99 22 4f 53 5f 53 70 72 69 74 65 4f 70 22 2c 32 |."OS_SpriteOp",2| 00000070 35 36 2b 31 35 2c 53 50 52 2c 22 53 49 47 4e 22 |56+15,SPR,"SIGN"| 00000080 2c 30 2c 32 35 36 2c 36 34 2c 32 39 0d 00 46 04 |,0,256,64,29..F.| 00000090 0d 00 50 25 c8 99 22 4f 53 5f 53 70 72 69 74 65 |..P%.."OS_Sprite| 000000a0 4f 70 22 2c 32 35 36 2b 36 30 2c 53 50 52 2c 22 |Op",256+60,SPR,"| 000000b0 53 49 47 4e 22 0d 00 5a 0f fb 30 3a fb 31 32 38 |SIGN"..Z..0:.128| 000000c0 2b 31 3a db 0d 00 64 25 f1 27 22 20 20 54 68 69 |+1:...d%.'" Thi| 000000d0 73 20 70 72 6f 63 65 64 75 72 65 20 64 65 6d 6f |s procedure demo| 000000e0 6e 73 74 72 61 74 65 73 22 0d 00 6e 24 f1 22 20 |nstrates"..n$." | 000000f0 20 61 20 4f 53 5f 53 70 72 69 74 65 4f 70 20 53 | a OS_SpriteOp S| 00000100 57 49 20 77 68 69 63 68 20 63 61 6e 22 0d 00 78 |WI which can"..x| 00000110 23 f1 22 20 20 72 6f 74 61 74 65 20 61 20 73 70 |#." rotate a sp| 00000120 72 69 74 65 20 61 72 6f 75 6e 64 20 69 74 73 22 |rite around its"| 00000130 0d 00 82 24 f1 22 20 20 63 65 6e 74 65 72 20 61 |...$." center a| 00000140 6e 64 20 61 74 20 74 68 65 20 73 61 6d 65 20 74 |nd at the same t| 00000150 69 6d 65 22 0d 00 8c 25 f1 22 20 20 65 6e 6c 61 |ime"...%." enla| 00000160 72 67 65 20 6f 72 20 64 69 6d 69 6e 69 73 68 20 |rge or diminish | 00000170 74 68 65 20 73 69 7a 65 22 0d 00 96 17 f1 22 20 |the size"....." | 00000180 20 6f 66 20 74 68 65 20 73 70 72 69 74 65 2e 22 | of the sprite."| 00000190 0d 00 a0 15 e6 30 3a c8 93 20 30 2c 30 2c 35 31 |.....0:.. 0,0,51| 000001a0 31 2c 31 32 37 0d 00 aa 20 c8 99 22 4f 53 5f 53 |1,127... .."OS_S| 000001b0 70 72 69 74 65 4f 70 22 2c 32 35 36 2b 36 30 2c |priteOp",256+60,| 000001c0 53 50 52 2c 30 0d 00 b4 04 0d 00 be 07 5a 3d 30 |SPR,0........Z=0| 000001d0 0d 00 c8 10 e3 20 41 25 3d 30 b8 33 36 35 88 32 |..... A%=0.365.2| 000001e0 0d 00 d2 0d 5a 3d 5a 2b 30 2e 30 30 35 0d 00 dc |....Z=Z+0.005...| 000001f0 27 f2 52 4f 54 28 53 50 52 2c 22 53 49 47 4e 22 |'.ROT(SPR,"SIGN"| 00000200 2c 38 30 30 2c 36 30 30 2c 5a 2c 31 2e 35 2a 5a |,800,600,Z,1.5*Z| 00000210 2c 41 25 29 0d 00 e6 05 ed 0d 00 f0 11 5a 31 3d |,A%).........Z1=| 00000220 5a 3a 5a 32 3d 31 2e 35 2a 5a 0d 00 fa 3a e3 4e |Z:Z2=1.5*Z...:.N| 00000230 25 3d 31 b8 35 30 3a 5a 32 3d 5a 32 2b 2e 31 30 |%=1.50:Z2=Z2+.10| 00000240 3a f2 52 4f 54 28 53 50 52 2c 22 53 49 47 4e 22 |:.ROT(SPR,"SIGN"| 00000250 2c 38 30 30 2c 36 30 30 2c 5a 31 2c 5a 32 2c 41 |,800,600,Z1,Z2,A| 00000260 25 29 3a ed 0d 01 04 3b e3 4e 25 3d 31 b8 35 30 |%):....;.N%=1.50| 00000270 3a 5a 31 3d 5a 31 2b 2e 30 33 32 3a f2 52 4f 54 |:Z1=Z1+.032:.ROT| 00000280 28 53 50 52 2c 22 53 49 47 4e 22 2c 38 30 30 2c |(SPR,"SIGN",800,| 00000290 36 30 30 2c 5a 31 2c 5a 32 2c 41 25 29 3a ed 0d |600,Z1,Z2,A%):..| 000002a0 01 0e 05 f5 0d 01 18 44 5a 31 3d 2e 35 2b 31 2e |.......DZ1=.5+1.| 000002b0 35 2a b3 28 31 29 3a 5a 32 3d 2e 35 2b 31 2e 35 |5*.(1):Z2=.5+1.5| 000002c0 2a b3 28 31 29 3a 41 25 3d b3 28 36 30 29 2b 33 |*.(1):A%=.(60)+3| 000002d0 33 30 3a 58 25 3d b3 28 31 36 30 30 29 3a 59 25 |30:X%=.(1600):Y%| 000002e0 3d b3 28 31 32 30 30 29 0d 01 22 23 f2 52 4f 54 |=.(1200).."#.ROT| 000002f0 28 53 50 52 2c 22 53 49 47 4e 22 2c 58 25 2c 59 |(SPR,"SIGN",X%,Y| 00000300 25 2c 5a 31 2c 5a 32 2c 41 25 29 0d 01 2c 06 fd |%,Z1,Z2,A%)..,..| 00000310 30 0d 01 36 04 0d 01 40 05 e0 0d 01 4a 04 0d 01 |0..6...@....J...| 00000320 54 20 dd f2 52 4f 54 28 53 50 52 2c 4e 24 2c 58 |T ..ROT(SPR,N$,X| 00000330 25 2c 59 25 2c 53 58 2c 53 59 2c 41 25 29 0d 01 |%,Y%,SX,SY,A%)..| 00000340 5e 13 ea 20 58 52 25 2c 59 52 25 2c 57 25 2c 48 |^.. XR%,YR%,W%,H| 00000350 25 0d 01 68 2c c8 99 22 4f 53 5f 53 70 72 69 74 |%..h,.."OS_Sprit| 00000360 65 4f 70 22 2c 32 35 36 2b 34 30 2c 53 50 52 2c |eOp",256+40,SPR,| 00000370 4e 24 20 b8 20 2c 2c 2c 57 25 2c 48 25 0d 01 72 |N$ . ,,,W%,H%..r| 00000380 15 53 58 3d 53 58 2a 57 25 3a 53 59 3d 53 59 2a |.SX=SX*W%:SY=SY*| 00000390 48 25 0d 01 7c 2c 58 52 25 3d 2d 53 58 2a 9b b2 |H%..|,XR%=-SX*..| 000003a0 41 25 2b 53 59 2a b5 b2 41 25 3a 59 52 25 3d 53 |A%+SY*..A%:YR%=S| 000003b0 59 2a 9b b2 41 25 2b 53 58 2a b5 b2 41 25 0d 01 |Y*..A%+SX*..A%..| 000003c0 86 2b 52 4f 54 21 30 30 3d 28 58 52 25 2b 58 25 |.+ROT!00=(XR%+X%| 000003d0 29 2a 32 35 36 3a 52 4f 54 21 30 34 3d 28 59 52 |)*256:ROT!04=(YR| 000003e0 25 2b 59 25 29 2a 32 35 36 0d 01 90 2b 58 52 25 |%+Y%)*256...+XR%| 000003f0 3d 53 58 2a 9b b2 41 25 2b 53 59 2a b5 b2 41 25 |=SX*..A%+SY*..A%| 00000400 3a 59 52 25 3d 53 59 2a 9b b2 41 25 2d 53 58 2a |:YR%=SY*..A%-SX*| 00000410 b5 b2 41 25 0d 01 9a 2b 52 4f 54 21 30 38 3d 28 |..A%...+ROT!08=(| 00000420 58 52 25 2b 58 25 29 2a 32 35 36 3a 52 4f 54 21 |XR%+X%)*256:ROT!| 00000430 31 32 3d 28 59 52 25 2b 59 25 29 2a 32 35 36 0d |12=(YR%+Y%)*256.| 00000440 01 a4 2c 58 52 25 3d 53 58 2a 9b b2 41 25 2d 53 |..,XR%=SX*..A%-S| 00000450 59 2a b5 b2 41 25 3a 59 52 25 3d 2d 53 59 2a 9b |Y*..A%:YR%=-SY*.| 00000460 b2 41 25 2d 53 58 2a b5 b2 41 25 0d 01 ae 2b 52 |.A%-SX*..A%...+R| 00000470 4f 54 21 31 36 3d 28 58 52 25 2b 58 25 29 2a 32 |OT!16=(XR%+X%)*2| 00000480 35 36 3a 52 4f 54 21 32 30 3d 28 59 52 25 2b 59 |56:ROT!20=(YR%+Y| 00000490 25 29 2a 32 35 36 0d 01 b8 2d 58 52 25 3d 2d 53 |%)*256...-XR%=-S| 000004a0 58 2a 9b b2 41 25 2d 53 59 2a b5 b2 41 25 3a 59 |X*..A%-SY*..A%:Y| 000004b0 52 25 3d 2d 53 59 2a 9b b2 41 25 2b 53 58 2a b5 |R%=-SY*..A%+SX*.| 000004c0 b2 41 25 0d 01 c2 2b 52 4f 54 21 32 34 3d 28 58 |.A%...+ROT!24=(X| 000004d0 52 25 2b 58 25 29 2a 32 35 36 3a 52 4f 54 21 32 |R%+X%)*256:ROT!2| 000004e0 38 3d 28 59 52 25 2b 59 25 29 2a 32 35 36 0d 01 |8=(YR%+Y%)*256..| 000004f0 cc 2a c8 99 22 4f 53 5f 53 70 72 69 74 65 4f 70 |.*.."OS_SpriteOp| 00000500 22 2c 32 35 36 2b 35 36 2c 53 50 52 2c 4e 24 2c |",256+56,SPR,N$,| 00000510 31 2c 2c 38 2c 52 4f 54 0d 01 d6 05 e1 0d ff |1,,8,ROT.......| 0000051f