On builds more recent than beta 3, the boo snake's trail is drawn like this:
Code: Select all
for l,w in ipairs(data.tail) do
Graphics.drawImageToSceneWP(
Graphics.sprites.npc[settings.boosnake.id].img,
w.x,
w.y,
0,
math.floor((w.offset + (w.frame+1)*boo_frames + (math.floor((w.direction+1)*0.5))*(boo_frames*4))*booheight),
boowidth,
booheight,
-55
)
end
The texture is Graphics.sprites.npc[settings.boosnake.id].img, which is npc-298.png.
The frame selected is calculated to be one of the 3 sets of frames below the first set for each direction.
A quick sprite replacement reveals this:

Considering the npc-298e file didn't exist in Beta 3, you seem to already have a more recent build, so replacing the sprite should be no problem for you.