Code Crackers

any hint?

@clorox Clever! That really solved it

Not the easiest. Still, I like a good challenge. Thanks @Sabik!

Looking back on the comments, @clorox, looks like you were on to something. Did you solve it? @richardfu, looks like you did. @Bullwyf @Squirrel61 Here are some hints just in case you haven't figured it out.

Spoiler: Hint #1

Yes, there are two codes, one for the forward trip and one for the return trip.

Spoiler: Hint #2

Yes, the codes have something to do with the coloured cylinders.

The following is the big hint that @clorox alluded to:

Spoiler: Hint #3

And, yes, the travel from grey cylinder to beige (gold?) on top, i.e. the forward trip, has a code embedded between the grey cylinder and beige cylinder found at the base of the design.

A bit of clarification on Hint #3 as another hint:

Spoiler: Hint #4

Consider looking for patterns along the whole stretch between the two coloured cylinders.

An alternate way to solve this level would be to use this hint:

Spoiler: Hint #5

One can look down the forward path from the midway point (i.e. down into the mechanism from the opposite end from where B starts) to get an idea on the positions on the last few sliders.

Here is what I saw as an answer to Hint #5 if you want to double-check your work (note: this spoiler has a partial code revealed):

Spoiler: Hint #6

I could make out the final four sliders for sure and maybe even one or two more. Here are the positions of the final four (counting from 0, lowest, to 3, highest): 2, 3, 3, 2.

At this point I got stuck for a long time... Until I figured out just one more slider position:

Spoiler: Hint #7

The middle (5th) slider is supposed to be fully up (or as I like to count, in position 3). One can figure this out by looking really hard down the forward path as explained in Hint #5 and comparing the position of the 5th and 6th sliders.

At this point I resorted to brute force. Hopefully you found the pattern by now. If not, here is another code reveal:

Spoiler: Hint #8

Counting from 0, lowest, to 3, highest, for the positions of the sliders (for the forward path) are 1, 3, 3, 1, 3, 2, 3, 3, 2.

If you still can't make out the pattern, here is how to tell:

Spoiler: Hint #9

Count the number of blocks horizontally starting with the one that the grey cylinder is on.

Now you're halfway! Alas, you may need a hint for the second half too:

Spoiler: Hint #10

By now you've figured out to count the blocks between the coloured cylinders on the corners of the game space. The return trip counts red bricks in a slightly different fashion from the forward trip.

So... Here is the final code solution:

Spoiler: Solution

1, 3, 3, 1, 3, 2, 3, 3, 2 and 3, 1, 0, 2, 0, 2, 0, 1, 1. For an explanation on how this was derived, please read the other hints.