Home » Archimedes archive » Acorn User » AU 1993-08.adf » !Morphing_Morphing » Convert

Convert

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Tape/disk: Home » Archimedes archive » Acorn User » AU 1993-08.adf » !Morphing_Morphing
Filename: Convert
Read OK:
File size: 0760 bytes
Load address: 0000
Exec address: 0000
File contents
Convert
By Robin Barnes and Mark Moxon

Convert takes a sequence of sprite files (such as those produced by
Morph) and creates a special Movie file for use with Animator. Movie
files consist of sprites stored in a specially compressed format. The
algorithm balances the need for a fast frame rate and a high
compression ratio.

To use Convert, double-click on it to load it onto the iconbar. Click
on the icon to bring up the Convert dialogue box.

The 'Movie file' icon should contain the pathname of the Movie file to
be created. Either type in a full pathname into the writable icon, or
click on the right arrow, type in a filename and drag the icon to a
directory.

The 'Last frame' icon should contain the number of the last sprite
file to be loaded, so if you have sprite files Sprite0 through to
Sprite23, then this icon should contain 23. Clicking on the arrows
increases or decreases the number, and clicking on the icon allows you
to type in a number directly.

'Loop' means the animation jumps straight back to the start when it
ends; 'Cycle' means the animation plays from start to end, and then
plays backwards from end to start.

If 'Scroll bars' is switched on, then the resultant animation window
will have scroll bars.

The 'Sprite file' icon contains the pathname of the sprite files to
convert. Either type in a full pathname into the writable icon
(missing off the numbers from the filenames), or drag one of the
sprite files to the window; the number will be stripped off, and the
filename entered in the writable icon.

To create the Movie file, click on 'OK'.

Note: When the Convert application is run, it grabs all the memory
from the Next slot. This amount must be enough to load all the sprites
in the animation, so if you get a memory related error (such as 'No
room for this DIM'), quit Convert, increase the amount of memory in
the Next slot, and try again.
00000000  43 6f 6e 76 65 72 74 0a  42 79 20 52 6f 62 69 6e  |Convert.By Robin|
00000010  20 42 61 72 6e 65 73 20  61 6e 64 20 4d 61 72 6b  | Barnes and Mark|
00000020  20 4d 6f 78 6f 6e 0a 0a  43 6f 6e 76 65 72 74 20  | Moxon..Convert |
00000030  74 61 6b 65 73 20 61 20  73 65 71 75 65 6e 63 65  |takes a sequence|
00000040  20 6f 66 20 73 70 72 69  74 65 20 66 69 6c 65 73  | of sprite files|
00000050  20 28 73 75 63 68 20 61  73 20 74 68 6f 73 65 20  | (such as those |
00000060  70 72 6f 64 75 63 65 64  20 62 79 0a 4d 6f 72 70  |produced by.Morp|
00000070  68 29 20 61 6e 64 20 63  72 65 61 74 65 73 20 61  |h) and creates a|
00000080  20 73 70 65 63 69 61 6c  20 4d 6f 76 69 65 20 66  | special Movie f|
00000090  69 6c 65 20 66 6f 72 20  75 73 65 20 77 69 74 68  |ile for use with|
000000a0  20 41 6e 69 6d 61 74 6f  72 2e 20 4d 6f 76 69 65  | Animator. Movie|
000000b0  0a 66 69 6c 65 73 20 63  6f 6e 73 69 73 74 20 6f  |.files consist o|
000000c0  66 20 73 70 72 69 74 65  73 20 73 74 6f 72 65 64  |f sprites stored|
000000d0  20 69 6e 20 61 20 73 70  65 63 69 61 6c 6c 79 20  | in a specially |
000000e0  63 6f 6d 70 72 65 73 73  65 64 20 66 6f 72 6d 61  |compressed forma|
000000f0  74 2e 20 54 68 65 0a 61  6c 67 6f 72 69 74 68 6d  |t. The.algorithm|
00000100  20 62 61 6c 61 6e 63 65  73 20 74 68 65 20 6e 65  | balances the ne|
00000110  65 64 20 66 6f 72 20 61  20 66 61 73 74 20 66 72  |ed for a fast fr|
00000120  61 6d 65 20 72 61 74 65  20 61 6e 64 20 61 20 68  |ame rate and a h|
00000130  69 67 68 0a 63 6f 6d 70  72 65 73 73 69 6f 6e 20  |igh.compression |
00000140  72 61 74 69 6f 2e 0a 0a  54 6f 20 75 73 65 20 43  |ratio...To use C|
00000150  6f 6e 76 65 72 74 2c 20  64 6f 75 62 6c 65 2d 63  |onvert, double-c|
00000160  6c 69 63 6b 20 6f 6e 20  69 74 20 74 6f 20 6c 6f  |lick on it to lo|
00000170  61 64 20 69 74 20 6f 6e  74 6f 20 74 68 65 20 69  |ad it onto the i|
00000180  63 6f 6e 62 61 72 2e 20  43 6c 69 63 6b 0a 6f 6e  |conbar. Click.on|
00000190  20 74 68 65 20 69 63 6f  6e 20 74 6f 20 62 72 69  | the icon to bri|
000001a0  6e 67 20 75 70 20 74 68  65 20 43 6f 6e 76 65 72  |ng up the Conver|
000001b0  74 20 64 69 61 6c 6f 67  75 65 20 62 6f 78 2e 0a  |t dialogue box..|
000001c0  0a 54 68 65 20 27 4d 6f  76 69 65 20 66 69 6c 65  |.The 'Movie file|
000001d0  27 20 69 63 6f 6e 20 73  68 6f 75 6c 64 20 63 6f  |' icon should co|
000001e0  6e 74 61 69 6e 20 74 68  65 20 70 61 74 68 6e 61  |ntain the pathna|
000001f0  6d 65 20 6f 66 20 74 68  65 20 4d 6f 76 69 65 20  |me of the Movie |
00000200  66 69 6c 65 20 74 6f 0a  62 65 20 63 72 65 61 74  |file to.be creat|
00000210  65 64 2e 20 45 69 74 68  65 72 20 74 79 70 65 20  |ed. Either type |
00000220  69 6e 20 61 20 66 75 6c  6c 20 70 61 74 68 6e 61  |in a full pathna|
00000230  6d 65 20 69 6e 74 6f 20  74 68 65 20 77 72 69 74  |me into the writ|
00000240  61 62 6c 65 20 69 63 6f  6e 2c 20 6f 72 0a 63 6c  |able icon, or.cl|
00000250  69 63 6b 20 6f 6e 20 74  68 65 20 72 69 67 68 74  |ick on the right|
00000260  20 61 72 72 6f 77 2c 20  74 79 70 65 20 69 6e 20  | arrow, type in |
00000270  61 20 66 69 6c 65 6e 61  6d 65 20 61 6e 64 20 64  |a filename and d|
00000280  72 61 67 20 74 68 65 20  69 63 6f 6e 20 74 6f 20  |rag the icon to |
00000290  61 0a 64 69 72 65 63 74  6f 72 79 2e 0a 0a 54 68  |a.directory...Th|
000002a0  65 20 27 4c 61 73 74 20  66 72 61 6d 65 27 20 69  |e 'Last frame' i|
000002b0  63 6f 6e 20 73 68 6f 75  6c 64 20 63 6f 6e 74 61  |con should conta|
000002c0  69 6e 20 74 68 65 20 6e  75 6d 62 65 72 20 6f 66  |in the number of|
000002d0  20 74 68 65 20 6c 61 73  74 20 73 70 72 69 74 65  | the last sprite|
000002e0  0a 66 69 6c 65 20 74 6f  20 62 65 20 6c 6f 61 64  |.file to be load|
000002f0  65 64 2c 20 73 6f 20 69  66 20 79 6f 75 20 68 61  |ed, so if you ha|
00000300  76 65 20 73 70 72 69 74  65 20 66 69 6c 65 73 20  |ve sprite files |
00000310  53 70 72 69 74 65 30 20  74 68 72 6f 75 67 68 20  |Sprite0 through |
00000320  74 6f 0a 53 70 72 69 74  65 32 33 2c 20 74 68 65  |to.Sprite23, the|
00000330  6e 20 74 68 69 73 20 69  63 6f 6e 20 73 68 6f 75  |n this icon shou|
00000340  6c 64 20 63 6f 6e 74 61  69 6e 20 32 33 2e 20 43  |ld contain 23. C|
00000350  6c 69 63 6b 69 6e 67 20  6f 6e 20 74 68 65 20 61  |licking on the a|
00000360  72 72 6f 77 73 0a 69 6e  63 72 65 61 73 65 73 20  |rrows.increases |
00000370  6f 72 20 64 65 63 72 65  61 73 65 73 20 74 68 65  |or decreases the|
00000380  20 6e 75 6d 62 65 72 2c  20 61 6e 64 20 63 6c 69  | number, and cli|
00000390  63 6b 69 6e 67 20 6f 6e  20 74 68 65 20 69 63 6f  |cking on the ico|
000003a0  6e 20 61 6c 6c 6f 77 73  20 79 6f 75 0a 74 6f 20  |n allows you.to |
000003b0  74 79 70 65 20 69 6e 20  61 20 6e 75 6d 62 65 72  |type in a number|
000003c0  20 64 69 72 65 63 74 6c  79 2e 0a 0a 27 4c 6f 6f  | directly...'Loo|
000003d0  70 27 20 6d 65 61 6e 73  20 74 68 65 20 61 6e 69  |p' means the ani|
000003e0  6d 61 74 69 6f 6e 20 6a  75 6d 70 73 20 73 74 72  |mation jumps str|
000003f0  61 69 67 68 74 20 62 61  63 6b 20 74 6f 20 74 68  |aight back to th|
00000400  65 20 73 74 61 72 74 20  77 68 65 6e 20 69 74 0a  |e start when it.|
00000410  65 6e 64 73 3b 20 27 43  79 63 6c 65 27 20 6d 65  |ends; 'Cycle' me|
00000420  61 6e 73 20 74 68 65 20  61 6e 69 6d 61 74 69 6f  |ans the animatio|
00000430  6e 20 70 6c 61 79 73 20  66 72 6f 6d 20 73 74 61  |n plays from sta|
00000440  72 74 20 74 6f 20 65 6e  64 2c 20 61 6e 64 20 74  |rt to end, and t|
00000450  68 65 6e 0a 70 6c 61 79  73 20 62 61 63 6b 77 61  |hen.plays backwa|
00000460  72 64 73 20 66 72 6f 6d  20 65 6e 64 20 74 6f 20  |rds from end to |
00000470  73 74 61 72 74 2e 0a 0a  49 66 20 27 53 63 72 6f  |start...If 'Scro|
00000480  6c 6c 20 62 61 72 73 27  20 69 73 20 73 77 69 74  |ll bars' is swit|
00000490  63 68 65 64 20 6f 6e 2c  20 74 68 65 6e 20 74 68  |ched on, then th|
000004a0  65 20 72 65 73 75 6c 74  61 6e 74 20 61 6e 69 6d  |e resultant anim|
000004b0  61 74 69 6f 6e 20 77 69  6e 64 6f 77 0a 77 69 6c  |ation window.wil|
000004c0  6c 20 68 61 76 65 20 73  63 72 6f 6c 6c 20 62 61  |l have scroll ba|
000004d0  72 73 2e 0a 0a 54 68 65  20 27 53 70 72 69 74 65  |rs...The 'Sprite|
000004e0  20 66 69 6c 65 27 20 69  63 6f 6e 20 63 6f 6e 74  | file' icon cont|
000004f0  61 69 6e 73 20 74 68 65  20 70 61 74 68 6e 61 6d  |ains the pathnam|
00000500  65 20 6f 66 20 74 68 65  20 73 70 72 69 74 65 20  |e of the sprite |
00000510  66 69 6c 65 73 20 74 6f  0a 63 6f 6e 76 65 72 74  |files to.convert|
00000520  2e 20 45 69 74 68 65 72  20 74 79 70 65 20 69 6e  |. Either type in|
00000530  20 61 20 66 75 6c 6c 20  70 61 74 68 6e 61 6d 65  | a full pathname|
00000540  20 69 6e 74 6f 20 74 68  65 20 77 72 69 74 61 62  | into the writab|
00000550  6c 65 20 69 63 6f 6e 0a  28 6d 69 73 73 69 6e 67  |le icon.(missing|
00000560  20 6f 66 66 20 74 68 65  20 6e 75 6d 62 65 72 73  | off the numbers|
00000570  20 66 72 6f 6d 20 74 68  65 20 66 69 6c 65 6e 61  | from the filena|
00000580  6d 65 73 29 2c 20 6f 72  20 64 72 61 67 20 6f 6e  |mes), or drag on|
00000590  65 20 6f 66 20 74 68 65  0a 73 70 72 69 74 65 20  |e of the.sprite |
000005a0  66 69 6c 65 73 20 74 6f  20 74 68 65 20 77 69 6e  |files to the win|
000005b0  64 6f 77 3b 20 74 68 65  20 6e 75 6d 62 65 72 20  |dow; the number |
000005c0  77 69 6c 6c 20 62 65 20  73 74 72 69 70 70 65 64  |will be stripped|
000005d0  20 6f 66 66 2c 20 61 6e  64 20 74 68 65 0a 66 69  | off, and the.fi|
000005e0  6c 65 6e 61 6d 65 20 65  6e 74 65 72 65 64 20 69  |lename entered i|
000005f0  6e 20 74 68 65 20 77 72  69 74 61 62 6c 65 20 69  |n the writable i|
00000600  63 6f 6e 2e 0a 0a 54 6f  20 63 72 65 61 74 65 20  |con...To create |
00000610  74 68 65 20 4d 6f 76 69  65 20 66 69 6c 65 2c 20  |the Movie file, |
00000620  63 6c 69 63 6b 20 6f 6e  20 27 4f 4b 27 2e 0a 0a  |click on 'OK'...|
00000630  4e 6f 74 65 3a 20 57 68  65 6e 20 74 68 65 20 43  |Note: When the C|
00000640  6f 6e 76 65 72 74 20 61  70 70 6c 69 63 61 74 69  |onvert applicati|
00000650  6f 6e 20 69 73 20 72 75  6e 2c 20 69 74 20 67 72  |on is run, it gr|
00000660  61 62 73 20 61 6c 6c 20  74 68 65 20 6d 65 6d 6f  |abs all the memo|
00000670  72 79 0a 66 72 6f 6d 20  74 68 65 20 4e 65 78 74  |ry.from the Next|
00000680  20 73 6c 6f 74 2e 20 54  68 69 73 20 61 6d 6f 75  | slot. This amou|
00000690  6e 74 20 6d 75 73 74 20  62 65 20 65 6e 6f 75 67  |nt must be enoug|
000006a0  68 20 74 6f 20 6c 6f 61  64 20 61 6c 6c 20 74 68  |h to load all th|
000006b0  65 20 73 70 72 69 74 65  73 0a 69 6e 20 74 68 65  |e sprites.in the|
000006c0  20 61 6e 69 6d 61 74 69  6f 6e 2c 20 73 6f 20 69  | animation, so i|
000006d0  66 20 79 6f 75 20 67 65  74 20 61 20 6d 65 6d 6f  |f you get a memo|
000006e0  72 79 20 72 65 6c 61 74  65 64 20 65 72 72 6f 72  |ry related error|
000006f0  20 28 73 75 63 68 20 61  73 20 27 4e 6f 0a 72 6f  | (such as 'No.ro|
00000700  6f 6d 20 66 6f 72 20 74  68 69 73 20 44 49 4d 27  |om for this DIM'|
00000710  29 2c 20 71 75 69 74 20  43 6f 6e 76 65 72 74 2c  |), quit Convert,|
00000720  20 69 6e 63 72 65 61 73  65 20 74 68 65 20 61 6d  | increase the am|
00000730  6f 75 6e 74 20 6f 66 20  6d 65 6d 6f 72 79 20 69  |ount of memory i|
00000740  6e 0a 74 68 65 20 4e 65  78 74 20 73 6c 6f 74 2c  |n.the Next slot,|
00000750  20 61 6e 64 20 74 72 79  20 61 67 61 69 6e 2e 0a  | and try again..|
00000760