aaaaxy VS OsmAnd

> Your game looks great, congrats on your progress! I especially enjoyed how the zoom works when you're leaving/arrive planets, and the unique propulsion system (also, the anchor made me giggle!).

Thank you. Feedbacks are very much appreciated. There is still a long was until an eventual release, but it's very fun to work on it.

> I tend to not need many, so I'd be curious if you can recall any structure in particular which you couldn't find? No biggie if not.

I had trouble finding basic structures like sets or linked lists, as much as more specific ones like R-tree, M-tree, KD-tree quad-tree or specific kinds of tries.

When quickly searching on Google, there are pretty much always some results, but when looking at the details it's not that great. Most of the packages have some kind of flaw that was a deal-breaker for me. Most common ones are:

- The package is something developed by one guy 4 years ago, and has pretty much no stars and is abandoned

- The structure is somehow backed by the native `map`, meaning that it has the same randomized iteration order

- There is some kind of logic to try to handle multi-threading, mixed-up with the data structure's logic. Often with mutexes/locks, thus killing the performance. My game is pretty much only mono-thread, and I just need something simple and that does not care about synchronization.

- The structure is not generic, but only uses `interface{}`

- The structure lacks tests or have unreadable code made of 1-letter variables

> I'm not a game dev, but I've seen some larger games such as https://github.com/divVerent/aaaaxy/tree/main/internal (if you haven't played it before—do it!) which seems to be able to place everything into separate packages without issue, so perhaps there's something to gleam from their architecture?

Thanks for the reference. After looking at it, is seems to me that they are creating really tiny packages made of one or two files. I don't want my codebase to end-up with thousands of 1-file packages, it does not seem very maintainable. I want to keep having packages with clearly defined purposes and domains.

> Hash map iteration shouldn't be sorted in _any_ language (here's Rust, for example https://play.rust-lang.org/?version=stable&mode=debug&editio... (Python makes it _appear_ as if dicts are sorted hash maps, but that's only because it doesn't only use a hash table, but a vector as well (same as you'd have to do in Go))), otherwise it would cause both portability and security (https://github.com/golang/go/issues/2630) issues. You should probably be using a b-tree if you aren't willing to sort it yourself.

I think that you didn't understand my message (or I didn't explain clearly enough). I do not need the items to be sorted, I need the iteration order to be consistent.

Let's say that I insert A, B and C in a map, then want to iterate on it. I will get an unspecified order, maybe ABC, maybe CBA, maybe BAC, which does not matter to me. However, in any language, this order will be consistent across all future iterations unless the data is changed. This is a natural property of any data structure. So if I got CBA in the first loop, I will also get CBA in the second and third loops.

In golang this is not the case because they actively inserted a random order. It means that even if the data does not change, I may get CBA in the first iteration, but BAC in the second, then ABC... Which created a ton of issues for me.

> If you don't care about unloading https://github.com/pkujhd/goloader

AAAAXY (version 1.2.280+20220822.2294.9ff4b8b7): A nonlinear 2D puzzle platformer taking place in impossible spaces.

> Google maps and Waze does not allow for setting vehicle height

As a side note, OsmAnd supports setting vehicle height* and has support for multiple vehicles/routing profiles: https://osmand.net

*: and weight, width, and length

Slightly offtopic

I have OsmAnd ( https://github.com/osmandapp/OsmAnd ) on my phone, download the basemaps, download my (small) country data (both sourced from open street maps), and with an app + ~1GB of data, I get the maps and full navigation within my country, POIs, etc., and can add other countries when needed.

Is there something similar for a PC? I can download data from open street maps, but then I need postgres, postgis, a tile server and styles and apache running just to generate the tiles. Is there anything portable (short of running osmand in an android virtualbox) for offline navigation on a linux pc? QGIS can display vectors, but I wasn't able to easily style the data... navigation is a no-go there too. anything else?

OsmAnd works for me. I am looking to get off Google, so I try to retire anything that is not on F-Droid. OsmAnd is a independent project ( osmand.net ) that uses the data you can also access under www.openstreetmap.org . The App is not perfect and sometimes it calls for the wrong action, for example when a road is just taking a steep turn it might ask for you to turn onto a different road which is actually the same every now and then. Also Google uses the location data of it's users to change routes depending on congestion afaik. Don't expect that from OsmAnd.

Organic Maps & OsmAnd~ are the classic map alternatives but i don't use them.

When I am on a flight and the flight does not provide the flight information, I am using the OsmAnd, https://osmand.net/, to monitor the flight altitude, speed and direction.

Regarding usage of OpenStreetMap over Google Maps - assuming we're talking mobile usage - you might give OSMAnd[0] a try. I've been using it exclusively on a Pixel loaded with GrapheneOS for a few months now. I would never consider going back to GMaps and I don't feel that I've lost anything either.

[0] - https://osmand.net/

OsmAnd~ (version 4.5.8): Global Mobile Map Viewing & Navigation for Offline and Online OSM Maps

OSMAnd tracks users using a secret supercookie by default because the developer wants metrics. This is done without consent. The defensiveness of the developer with regards to such unethical tracking means that I will never use any software they ever release.

https://github.com/osmandapp/OsmAnd/issues/15058

OSMand: https://osmand.net/