List order reversed (uses bach)
Hello, I hope you are doing well.
I am working on a patch and I have been dealing with a problem for a while now. I abstracted the problematic part to post here. The fact that it uses the bach library is probably relevant.
I have a system intended to backtrack through a list of fractions backwards, by increasing with a counter the amount that is to be subtracted from the address (index), so that if it receives address 4, it should retrieve address 3, 2, 1, and stop at 0. The address and the list are received by a bach.nth object, which retrieves the list item at the given address.
Now, if the system worked correctly, starting with index 4, it should retrieve the elements from the list [1/8 1/4 1/4 1/4] in the following order: 1/4, 1/4, 1/8; that is, the values for addresses 3, 2, and 1. Instead, via the system of automatic iteration, it retrieves the values in the order 1/8, 1/4, 1/4; in other words, backwards.
Do you perhaps know what the problem may be? If I do the iteration manually, one by one, the thing works. But in the way I'm doing it now, the list arrives backwards, as can be seen in the [prepend append] object that collects the fractions into a list.
Below is the patcher. I marked the steps, that is, what to press (the address: 4, and the list) with numbers, to specify the order in which they should be pressed.
Thank you.
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Next time paste copy-compressed max patch.
makes it easier to use.
then, you did not precise the question.
for example, if you have a list with 20 items, and set address to 12,
does that mean that you want to output all from 11th back to 1st item ?
in that case use zl.slice and split / reverse the list at that index.
if you need a number of items from address backwards ?
then you need 2 parameters, offset and number of items...
which seems not to be the case, at least not in the patch you posted.