-- FF7 .A animation files --
--- brief info written by mirex --

Each animation file holds one character animation ( run, walk or some other).
Some characters have more animation files. Animation is set of frames,
in each frame are stored bone rotations.

-- animation file contents --
name        size in bytes
header      24
unknown     12
frames      frames_count * frame

-- one frame, size is ( bones * 12 + 24 ) --
unknown     24 bytes = 6 floats
rotations   bones * 12 bytes = bones * 3 floats


// header structure, 24 bytes
struct {
    unsigned long   x1;
    unsigned long   frames_count;
    unsigned long   bones_count;
    unsigned long   x2, x3, x4;
} anim_head;

I understand only two values from the header, 'frames_count' which is number
of animation frames and 'bones_count' which is suprisingly number of animated
bones. ;)

If you want to load all possible animations for the model (even anims
of different models) then check if animation file has same number of bones
as current model.

After header there is 12 bytes of data that are unknown to me. It could
be some center of coord system or anything.

Frame starts with 6 floats (unknown), followed by rotations for each bone.
Rotations are stored as 3 floats (float is 4byte floating-point number).

mail: mirex on the mailserver "centrum.sk"
web: http://mirex.mypage.sk