Home » Archimedes archive » Archimedes World » AW-1994-12-Disc1.adf » Disk1Dec94 » !AWDec94/Goodies/S42/DevNotes

!AWDec94/Goodies/S42/DevNotes

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 » Archimedes World » AW-1994-12-Disc1.adf » Disk1Dec94
Filename: !AWDec94/Goodies/S42/DevNotes
Read OK:
File size: 0703 bytes
Load address: 0000
Exec address: 0000
File contents
Cycloids - Development

This was the very first version of Cycloids (then
called Cycloidz of course) in existence. Tom sent 
it to us just when he was on the verge of finishing
Ixion, apparently just an idea he was messing 
around with. Also included is a version of our
original comments file, about what sort of things
needed to be in the final game and some 
instructions as well.

We were amazed at the time. Both levels of this
demo are extremely difficult by the way, it took me 
absolutely ages of playing to get anywhere near the 
end of the second one (you need very careful
timing and coordination for some of the jumps),
this resulted in the finished game being much 
easier, although there are some similarities with
some of the levels.

It's quite amazing how much work actually needs to
go into something extremely simple like moving our
clown around the screen. His foot turning the 
unicycle one revolution takes eight separate frames
of animation. A sprite file of our friend is 
included, and you can try a popular trick used by
graphic artists to see how it works. Load the file
into Paint, and double click on all the images. Now
overlay them all, so the windows are in exactly the
same position on top of each other (and so that
they're numbered consecutively) and click 
continuously on the top left hand icon to start the
animation going. You'll see how it works - the game
uses exactly the same technique of quickly changing
the picture.

Also included are a couple of screenshots to 
compare...one from this early version, and one from
the release version of the game - see how the
graphics have been tidied up carefully, 
especially in the main character and the scenery
blocks and ropes, but still keeping the basic idea
of a stupid clown and weird alien creatures.

00000000  0a 43 79 63 6c 6f 69 64  73 20 2d 20 44 65 76 65  |.Cycloids - Deve|
00000010  6c 6f 70 6d 65 6e 74 0a  0a 54 68 69 73 20 77 61  |lopment..This wa|
00000020  73 20 74 68 65 20 76 65  72 79 20 66 69 72 73 74  |s the very first|
00000030  20 76 65 72 73 69 6f 6e  20 6f 66 20 43 79 63 6c  | version of Cycl|
00000040  6f 69 64 73 20 28 74 68  65 6e 0a 63 61 6c 6c 65  |oids (then.calle|
00000050  64 20 43 79 63 6c 6f 69  64 7a 20 6f 66 20 63 6f  |d Cycloidz of co|
00000060  75 72 73 65 29 20 69 6e  20 65 78 69 73 74 65 6e  |urse) in existen|
00000070  63 65 2e 20 54 6f 6d 20  73 65 6e 74 20 0a 69 74  |ce. Tom sent .it|
00000080  20 74 6f 20 75 73 20 6a  75 73 74 20 77 68 65 6e  | to us just when|
00000090  20 68 65 20 77 61 73 20  6f 6e 20 74 68 65 20 76  | he was on the v|
000000a0  65 72 67 65 20 6f 66 20  66 69 6e 69 73 68 69 6e  |erge of finishin|
000000b0  67 0a 49 78 69 6f 6e 2c  20 61 70 70 61 72 65 6e  |g.Ixion, apparen|
000000c0  74 6c 79 20 6a 75 73 74  20 61 6e 20 69 64 65 61  |tly just an idea|
000000d0  20 68 65 20 77 61 73 20  6d 65 73 73 69 6e 67 20  | he was messing |
000000e0  0a 61 72 6f 75 6e 64 20  77 69 74 68 2e 20 41 6c  |.around with. Al|
000000f0  73 6f 20 69 6e 63 6c 75  64 65 64 20 69 73 20 61  |so included is a|
00000100  20 76 65 72 73 69 6f 6e  20 6f 66 20 6f 75 72 0a  | version of our.|
00000110  6f 72 69 67 69 6e 61 6c  20 63 6f 6d 6d 65 6e 74  |original comment|
00000120  73 20 66 69 6c 65 2c 20  61 62 6f 75 74 20 77 68  |s file, about wh|
00000130  61 74 20 73 6f 72 74 20  6f 66 20 74 68 69 6e 67  |at sort of thing|
00000140  73 0a 6e 65 65 64 65 64  20 74 6f 20 62 65 20 69  |s.needed to be i|
00000150  6e 20 74 68 65 20 66 69  6e 61 6c 20 67 61 6d 65  |n the final game|
00000160  20 61 6e 64 20 73 6f 6d  65 20 0a 69 6e 73 74 72  | and some .instr|
00000170  75 63 74 69 6f 6e 73 20  61 73 20 77 65 6c 6c 2e  |uctions as well.|
00000180  0a 0a 57 65 20 77 65 72  65 20 61 6d 61 7a 65 64  |..We were amazed|
00000190  20 61 74 20 74 68 65 20  74 69 6d 65 2e 20 42 6f  | at the time. Bo|
000001a0  74 68 20 6c 65 76 65 6c  73 20 6f 66 20 74 68 69  |th levels of thi|
000001b0  73 0a 64 65 6d 6f 20 61  72 65 20 65 78 74 72 65  |s.demo are extre|
000001c0  6d 65 6c 79 20 64 69 66  66 69 63 75 6c 74 20 62  |mely difficult b|
000001d0  79 20 74 68 65 20 77 61  79 2c 20 69 74 20 74 6f  |y the way, it to|
000001e0  6f 6b 20 6d 65 20 0a 61  62 73 6f 6c 75 74 65 6c  |ok me .absolutel|
000001f0  79 20 61 67 65 73 20 6f  66 20 70 6c 61 79 69 6e  |y ages of playin|
00000200  67 20 74 6f 20 67 65 74  20 61 6e 79 77 68 65 72  |g to get anywher|
00000210  65 20 6e 65 61 72 20 74  68 65 20 0a 65 6e 64 20  |e near the .end |
00000220  6f 66 20 74 68 65 20 73  65 63 6f 6e 64 20 6f 6e  |of the second on|
00000230  65 20 28 79 6f 75 20 6e  65 65 64 20 76 65 72 79  |e (you need very|
00000240  20 63 61 72 65 66 75 6c  0a 74 69 6d 69 6e 67 20  | careful.timing |
00000250  61 6e 64 20 63 6f 6f 72  64 69 6e 61 74 69 6f 6e  |and coordination|
00000260  20 66 6f 72 20 73 6f 6d  65 20 6f 66 20 74 68 65  | for some of the|
00000270  20 6a 75 6d 70 73 29 2c  0a 74 68 69 73 20 72 65  | jumps),.this re|
00000280  73 75 6c 74 65 64 20 69  6e 20 74 68 65 20 66 69  |sulted in the fi|
00000290  6e 69 73 68 65 64 20 67  61 6d 65 20 62 65 69 6e  |nished game bein|
000002a0  67 20 6d 75 63 68 20 0a  65 61 73 69 65 72 2c 20  |g much .easier, |
000002b0  61 6c 74 68 6f 75 67 68  20 74 68 65 72 65 20 61  |although there a|
000002c0  72 65 20 73 6f 6d 65 20  73 69 6d 69 6c 61 72 69  |re some similari|
000002d0  74 69 65 73 20 77 69 74  68 0a 73 6f 6d 65 20 6f  |ties with.some o|
000002e0  66 20 74 68 65 20 6c 65  76 65 6c 73 2e 0a 0a 49  |f the levels...I|
000002f0  74 27 73 20 71 75 69 74  65 20 61 6d 61 7a 69 6e  |t's quite amazin|
00000300  67 20 68 6f 77 20 6d 75  63 68 20 77 6f 72 6b 20  |g how much work |
00000310  61 63 74 75 61 6c 6c 79  20 6e 65 65 64 73 20 74  |actually needs t|
00000320  6f 0a 67 6f 20 69 6e 74  6f 20 73 6f 6d 65 74 68  |o.go into someth|
00000330  69 6e 67 20 65 78 74 72  65 6d 65 6c 79 20 73 69  |ing extremely si|
00000340  6d 70 6c 65 20 6c 69 6b  65 20 6d 6f 76 69 6e 67  |mple like moving|
00000350  20 6f 75 72 0a 63 6c 6f  77 6e 20 61 72 6f 75 6e  | our.clown aroun|
00000360  64 20 74 68 65 20 73 63  72 65 65 6e 2e 20 48 69  |d the screen. Hi|
00000370  73 20 66 6f 6f 74 20 74  75 72 6e 69 6e 67 20 74  |s foot turning t|
00000380  68 65 20 0a 75 6e 69 63  79 63 6c 65 20 6f 6e 65  |he .unicycle one|
00000390  20 72 65 76 6f 6c 75 74  69 6f 6e 20 74 61 6b 65  | revolution take|
000003a0  73 20 65 69 67 68 74 20  73 65 70 61 72 61 74 65  |s eight separate|
000003b0  20 66 72 61 6d 65 73 0a  6f 66 20 61 6e 69 6d 61  | frames.of anima|
000003c0  74 69 6f 6e 2e 20 41 20  73 70 72 69 74 65 20 66  |tion. A sprite f|
000003d0  69 6c 65 20 6f 66 20 6f  75 72 20 66 72 69 65 6e  |ile of our frien|
000003e0  64 20 69 73 20 0a 69 6e  63 6c 75 64 65 64 2c 20  |d is .included, |
000003f0  61 6e 64 20 79 6f 75 20  63 61 6e 20 74 72 79 20  |and you can try |
00000400  61 20 70 6f 70 75 6c 61  72 20 74 72 69 63 6b 20  |a popular trick |
00000410  75 73 65 64 20 62 79 0a  67 72 61 70 68 69 63 20  |used by.graphic |
00000420  61 72 74 69 73 74 73 20  74 6f 20 73 65 65 20 68  |artists to see h|
00000430  6f 77 20 69 74 20 77 6f  72 6b 73 2e 20 4c 6f 61  |ow it works. Loa|
00000440  64 20 74 68 65 20 66 69  6c 65 0a 69 6e 74 6f 20  |d the file.into |
00000450  50 61 69 6e 74 2c 20 61  6e 64 20 64 6f 75 62 6c  |Paint, and doubl|
00000460  65 20 63 6c 69 63 6b 20  6f 6e 20 61 6c 6c 20 74  |e click on all t|
00000470  68 65 20 69 6d 61 67 65  73 2e 20 4e 6f 77 0a 6f  |he images. Now.o|
00000480  76 65 72 6c 61 79 20 74  68 65 6d 20 61 6c 6c 2c  |verlay them all,|
00000490  20 73 6f 20 74 68 65 20  77 69 6e 64 6f 77 73 20  | so the windows |
000004a0  61 72 65 20 69 6e 20 65  78 61 63 74 6c 79 20 74  |are in exactly t|
000004b0  68 65 0a 73 61 6d 65 20  70 6f 73 69 74 69 6f 6e  |he.same position|
000004c0  20 6f 6e 20 74 6f 70 20  6f 66 20 65 61 63 68 20  | on top of each |
000004d0  6f 74 68 65 72 20 28 61  6e 64 20 73 6f 20 74 68  |other (and so th|
000004e0  61 74 0a 74 68 65 79 27  72 65 20 6e 75 6d 62 65  |at.they're numbe|
000004f0  72 65 64 20 63 6f 6e 73  65 63 75 74 69 76 65 6c  |red consecutivel|
00000500  79 29 20 61 6e 64 20 63  6c 69 63 6b 20 0a 63 6f  |y) and click .co|
00000510  6e 74 69 6e 75 6f 75 73  6c 79 20 6f 6e 20 74 68  |ntinuously on th|
00000520  65 20 74 6f 70 20 6c 65  66 74 20 68 61 6e 64 20  |e top left hand |
00000530  69 63 6f 6e 20 74 6f 20  73 74 61 72 74 20 74 68  |icon to start th|
00000540  65 0a 61 6e 69 6d 61 74  69 6f 6e 20 67 6f 69 6e  |e.animation goin|
00000550  67 2e 20 59 6f 75 27 6c  6c 20 73 65 65 20 68 6f  |g. You'll see ho|
00000560  77 20 69 74 20 77 6f 72  6b 73 20 2d 20 74 68 65  |w it works - the|
00000570  20 67 61 6d 65 0a 75 73  65 73 20 65 78 61 63 74  | game.uses exact|
00000580  6c 79 20 74 68 65 20 73  61 6d 65 20 74 65 63 68  |ly the same tech|
00000590  6e 69 71 75 65 20 6f 66  20 71 75 69 63 6b 6c 79  |nique of quickly|
000005a0  20 63 68 61 6e 67 69 6e  67 0a 74 68 65 20 70 69  | changing.the pi|
000005b0  63 74 75 72 65 2e 0a 0a  41 6c 73 6f 20 69 6e 63  |cture...Also inc|
000005c0  6c 75 64 65 64 20 61 72  65 20 61 20 63 6f 75 70  |luded are a coup|
000005d0  6c 65 20 6f 66 20 73 63  72 65 65 6e 73 68 6f 74  |le of screenshot|
000005e0  73 20 74 6f 20 0a 63 6f  6d 70 61 72 65 2e 2e 2e  |s to .compare...|
000005f0  6f 6e 65 20 66 72 6f 6d  20 74 68 69 73 20 65 61  |one from this ea|
00000600  72 6c 79 20 76 65 72 73  69 6f 6e 2c 20 61 6e 64  |rly version, and|
00000610  20 6f 6e 65 20 66 72 6f  6d 0a 74 68 65 20 72 65  | one from.the re|
00000620  6c 65 61 73 65 20 76 65  72 73 69 6f 6e 20 6f 66  |lease version of|
00000630  20 74 68 65 20 67 61 6d  65 20 2d 20 73 65 65 20  | the game - see |
00000640  68 6f 77 20 74 68 65 0a  67 72 61 70 68 69 63 73  |how the.graphics|
00000650  20 68 61 76 65 20 62 65  65 6e 20 74 69 64 69 65  | have been tidie|
00000660  64 20 75 70 20 63 61 72  65 66 75 6c 6c 79 2c 20  |d up carefully, |
00000670  0a 65 73 70 65 63 69 61  6c 6c 79 20 69 6e 20 74  |.especially in t|
00000680  68 65 20 6d 61 69 6e 20  63 68 61 72 61 63 74 65  |he main characte|
00000690  72 20 61 6e 64 20 74 68  65 20 73 63 65 6e 65 72  |r and the scener|
000006a0  79 0a 62 6c 6f 63 6b 73  20 61 6e 64 20 72 6f 70  |y.blocks and rop|
000006b0  65 73 2c 20 62 75 74 20  73 74 69 6c 6c 20 6b 65  |es, but still ke|
000006c0  65 70 69 6e 67 20 74 68  65 20 62 61 73 69 63 20  |eping the basic |
000006d0  69 64 65 61 0a 6f 66 20  61 20 73 74 75 70 69 64  |idea.of a stupid|
000006e0  20 63 6c 6f 77 6e 20 61  6e 64 20 77 65 69 72 64  | clown and weird|
000006f0  20 61 6c 69 65 6e 20 63  72 65 61 74 75 72 65 73  | alien creatures|
00000700  2e 0a 0a                                          |...|
00000703