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Posted by centrosphere 4 hours ago

The entire city of San Francisco as a video game(sf.thijs.gg)
https://twitter.com/cdngdev/status/2091909073038082139, https://xcancel.com/cdngdev/status/2091909073038082139
260 points | 88 comments
jparishy 21 minutes ago|
For any Philly ppl here, I've been making this game for a few months: https://cityrider.jpsmaps.com/

Similar concept, but more abstract in terms of art style. I'm pretty close to having the foundation I wanted before adding quests on top; telling a story is the ultimate goal.

Building on top of GIS data is super fun though. Especially since the barrier to entry is so low these days with LLMs. I encourage everyone to give it a shot if your local town/city publishes some data. No need to understand coordinate systems for example, which is nice.

For the game, there's a button to get in without an account so you can play around, but to get the fun mods you will need to play a bit and figure out the trash pick up/scrap at dump mechanic in the game.

frankhorrigan 3 hours ago||
I lived in SF for nearly 20 years, though I mostly spend my time in New York now.

And genuinely this made me emotional. Was weird as hell walking around my back yard. Going to the spot in Dolo that I used to haunt in my 20s. My favorite tennis courts and hill bombs, walked the entire disc golf course, etc.

aguynamedben 42 minutes ago||
Same. I lived in SF for 15 years, my kids were toddlers in the Marina... this is so freaking awesome and really brings out the nostalgia! It matches my memories exactly.

Exact proportions are crazy. I had the reverse experience doing sim racing... do a track a bunch, finally visit it in person - and it looks the exact same as in your mind.

madrox 1 hour ago|||
Happy to hear someone else say this. Similar story. I could never live in SF again but roaming around it was nostalgic in a way going back now just isn't
throwforfeds 1 hour ago|||
This made me super nostalgic as well. I've lived in NYC for 20 years, but spent a ton of time in SF early in my career (starting in 2008). I love NYC, but I've been sort of feeling like a change lately and this made me feel like subletting a place for a few months and getting back to the slower pace of SF.
marciob 1 hour ago||
good to know your feelings, but how different it is from using google maps?
aguynamedben 40 minutes ago||
The free will of walking. I walked around the city using certain routes, and I can freely replicate those walks in this. I did walks I did when my kids were 3 years old. Google Maps isn't fluid enough to do this.
nfw2 7 minutes ago||
It always seemed a missed opportunity that Microsoft Flight Simulator doesn't have a UFO mode or something where you don't need to worry about the physics of keeping the plane in the air and could just stop and look at things.

Maybe you don't need real-ish physics for the glider here. Does the user really need to fall?

jvogt 1 hour ago||
I have dreamed about a pipeline that can take elevation data, building data, maps, and streetview imagery to process a city into all the components you would need to build a proper map for one of the GTA engines, including all the other objects like trees, fire hydrants, signs, light posts, traffic lights, etc.

The building textures could be recreated from the low-res streetview imagery using a pipeline to scale / relight them using image-to-image models. Building shapes could be rebuilt using generative models for 3d mesh components. Road & sidewalk quality (how clean, how faded lines are, etc) could be inferred from imagery as well to be applied to the map.

Super cool project, hoping it continues to evolve!

michaelbuckbee 1 hour ago|
I feel like the closest we've gotten to that so far has been the flight sims.
cutoff 2 hours ago||
This is awesome. Would definitely download a local higher-res version if that were an option, maybe using Google Street View data? Also, if this was a live MMO, that would be fun. Not that there's really a game aspect here other than the coins when driving a vehicle, but anything to give some life to the sim SF city would be nice.

Seemingly lower-hanging fruit options I'd like to see:

- show street names, maybe some landmarks or businesses, togglable

- enter address to teleport to

- enter address to get directions to, GPS style, to travel there manually

- get coordinates / current location as a URL to share

- zoom in on minimap, or expand minimap, so that teleporting can be more precise

- changeable avatar

- more dynamic weather / lighting options

kfarr 2 hours ago||
This is awesome and if it's legal I'd love to do similar things on geospatial projects I work on. However I don't think Apple will be OK with this use of their data. I know that Google closely limits its 3D tiles data through a specific API and Apple does not make a 3d API available, therefore this has to be against ToS.

From the ToS linked from OP site:

> 1.3 Restrictions. You will not and will not permit or authorize a third party to: (...) (xiv) decompile, decrypt, reverse engineer, attempt to derive the source code of or disassemble the Service or any portion thereof (except as and only to the extent this restriction is prohibited by applicable law or by licensing terms governing the use of any FOSS components that may be included with the Service)

I would love for people to prove me wrong that Apple will embrace this use of their geospatial data!

josephjrobison 3 hours ago||
Very amazing. And this is the worst it will ever be. We'll soon be exploring 4k versions of this and we can open every trash can in Tunis. Fascinating. Had a lot of fun (tedious tho) going out to Alcatraz and figuring out how to get in.
stronglikedan 3 hours ago|
> Had a lot of fun (tedious tho) going out to Alcatraz

Curious, did you use a vehicle/glider, or did you take the heel-toe express all the way there?

whycombinetor 3 hours ago||
You can activate flying mode by double-jumping and crank the speed up with +.
tuchsen 3 hours ago||
Ah nice demo! I flew around SF for way too long just enjoying the sights. On my M3 Air using Chrome it eventually just turns into blobs and my character get stuck, takes about twenty minutes. I popped open the DevTools and the game loads in at like 400mb but after five or so minutes I'm at 2GB of memory consumption. I'd guess that you need to have your agent do a couple of passes for memory leaks. Very fun otherwise!
brap 28 minutes ago||
This is incredible, I wish I could have this in my city.

Can’t help but wondering, how will this look like if we had AI try to “augment” these maps in real time (maybe using street view images?). I wonder if it would be playable in reasonable FPS, and how expensive it would be.

CobrastanJorji 1 hour ago|
This would maybe be a pretty good opportunity to use some of that "upscaling" AI tech: given this weird results of spatial scanning, produce something plausible and much higher definition. There are some dangers of doing so, of course. People will believe details that show up in it because it's taken from real life, and AI loves adding fake details, but for a little game it seems like detail beats ground truth.
dcrazy 1 hour ago|
The photogrammetry appears to be from Apple Maps.
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