This is a sequence of variably-sized entries (type: anim_t).

If suffixed '_tl' the character faces top left of the screen, if suffixed '_br' the character faces bottom right of the screen, etc.

Animations (type: anim_t) have the following format:

Type	Bytes	Name	Meaning
Byte	1	nframes	Number of frames in this animation
direction_t	1	from	Which direction to turn to when animation starts (when reversed)
direction_t	1	to	Which direction to turn to when animation starts (when not reversed)
direction_t	1	map_direction	Direction to move the map, or 255 to not move it
animframe_t	nframes * 4	frames	Animation frames

Animation frames (type: animframe_t) have the following format:

Type	Bytes	Name	Meaning
Byte	1	dx	How much this frame moves the character by on the X axis. Signed delta
Byte	1	dy	How much this frame moves the character by on the Y axis. Signed delta
Byte	1	dh	How much this frame moves the character by on the height axis. Signed delta
Byte	1	spriteindex	Sprite index (relative to vischar's sprite base) + flip flag in top bit

Used by the routine at animate.