ggpo
colemakclub
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ggpo | colemakclub | |
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22 | 21 | |
3,075 | 126 | |
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0.0 | 2.5 | |
5 months ago | 2 months ago | |
C++ | JavaScript | |
MIT License | GNU Affero General Public License v3.0 |
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ggpo
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Q: How are online games like Street Fighter 6 able to synchronize inputs from two players at a high frame rate? (60fps)
As mentioned in the top comment, rollback and client side prediction is key. One of the more robust and popular libraries that do this specifically for fighting games is GGPO. When it was opened sourced a few years ago it was a fairly big deal as games that used it felt great. Larger studios have their own libraries but the concept is the same. Its worth a look through if you want to implement something on your own.
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Virtual Venerable Vestments - Weekly Discussion Thread, May 8th, 2023
I just did a quick Google so I don't know the exact details, but I think Max said Idol Shodown is running GGPO which, as far as I can tell, is open source.
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2D Fighting Game Engines in 2023
will reply here also in case anyone else wanted an answer. You could use the original C++ library with C++ or any language that interops with C++ (e.g. C#), so that's there for ya if you need
- What was your "Holy crap...This is like, an actual game" moment
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rolled back
Sure thing bud. I guess we'll just keep pretending like Code Mystics, the same people that did the KI netcode, haven't partnered with SNK because SNK realized their shit sucks and they needed external assistance. We'll pretend like the source code for GGPO is hidden away in the recesses of Tony Cannon's mind or that it isn't open and free for anyone to use or that it doesn't have Japanese documentation. We'll pretend like MikeZ didn't implement a version of GGPO in Skullgirls in 2012.
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Lesser known fields or industries?
GGPO is a common implementation and it's all open source if anyone wants to get into the nitty-gritty: https://github.com/pond3r/ggpo
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[Summary] Help wanted with Backroll-rs (new networking library) r/rust
Backroll-rs is a brand new networking library based on GGPO dedicated to peer-to-peer Rollback Netcode, for use in fighting games, platform fighters, and other games with less than 8 players that require low latency. We are looking for programmers familiar with Rust to help finish this project. We are 80% of the way completed with this project, but we need more unit tests and debugging to fully finish it.
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Why is online so hard for fighting games?
This doesn't work in the comparison to shooters. Shooters operate through a server, while fighting games are peer-to-peer. They only require a server for matchmaking purposes. Doing the peer-to-peer part actually puts fighting game devs at an advantage compared to other genres, as there's libraries and documentation for those libraries to either plug and play a rollback solution or build one buy looking at existing source code complete with solid documentation.
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Rant: I love Street Fighter V ! But I HATE the netcode! Please Capcom! Let SF6 have good netcode!!
GGPO doesn't really solve the biggest problem with SFV's netcode, which is client timesync. It does have code in there to handle it by slowing down the client that's ahead and allowing the client that's behind to catch up, but that doesn't fix the fact that one client consistently gets ahead in the first place, and also means the faster client will see more stuttering or slowdown.
- Honest opinion about rollback netcode
colemakclub
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Any advice for learning a new layout?
I use Colemak Club along with Monkey Type and Keybr. They each have their strengths, so I cycle through them each time I sit down to practice. What I like about Colemak Club is that you can limit your work to the homerow at first, then start adding in key pairs from there. You also get to type real words, which I find helpful.
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Just switched to Colemak-DH, this post title took me ages to type
I did use https://gnusenpai.net/colemakclub, which is a fork of Colemak Academy with the correct Colemak-DH layout
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Making the layout change
I recently built my first split ergo mech board. In part, it was a way to improve my WFH setup and hopefully encourage me to (finally) learn touch typing with an alternate layout (colemak-dh). I realize it's only been a couple of weeks, and I have been trying some Colemak club practice (which is great) but between life/summer/kids/hobbies, it's a real struggle to make progress and I find myself pulling out my old dell membrane keyboard (which now feels disgusting) whenever I need to just "get something done."
- How long did it take you to get accustomed to a new layout?
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Virtual Venerable Vestments - Weekly Discussion Thread, May 8th, 2023
No, first time reading about that method, I mostly read the learn section in the Colemak website and started practicing in this website that has all the most well known layouts, including the one I'm planning to use once I fully transition to Colemak
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Anyone have experience with Neovim and Colemak or Devorak keyboard layout?
I opted for the slow learning option to keep my productivity up. I practice for about 30 mins most days on colemak club, keybr, and monkey type. The rest of the day I'll switch between using my new keyboard some of the time, but my old keyboard most of the time. My old keyboard is still qwerty. Switching like this will take longer to get up to speed on my new keyboard, but I can continue to be productive.
- Practice Colemak, Tarmak, Workman, Canary, and custom layouts on ANSI, ISO, or Ortho
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Any common mistakes to avoid when switching to Colemak?
Don't use Colemak Academy for DH; its key diagram is incorrect (it doesn't have the angle mod). Colemak Club is a fork of Colemak Academy which uses the correct key diagram, and it's also actively maintained.
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Recommendations for a Complete Beginner
My favorite to learn by levels is (my recommendation is to not go to the next level until reach 20 WPM and ~90% accuracy): https://gnusenpai.net/colemakclub/
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How long does it take to learn a new layout?
I started learning Colemak-DH from qwerty in July and got to 50wpm by October. I did all of the lessons on Colemak Club to 35wpm or so before doing about 0.5h of monkeytype a day.
What are some alternatives?
nakama - Distributed server for social and realtime games and apps.
colemak-dh-wordlists - Custom wordlists for Colemak DH level-based training on Monkeytype.
backroll-rs - A (almost) 100% pure safe Rust implementation of GGPO-style rollback netcode.
twarc - A command line tool (and Python library) for archiving Twitter JSON
geckos.io - 🦎 Real-time client/server communication over UDP using WebRTC and Node.js http://geckos.io
colemak.vim - Remapping keys in Vim to work with a colemak keyboard layout.
rapier - 2D and 3D physics engines focused on performance.
monkeytype - The most customizable typing website with a minimalistic design and a ton of features. Test yourself in various modes, track your progress and improve your speed.
bevy - A refreshingly simple data-driven game engine built in Rust
amphetype
webtransport - WebTransport is a web API for flexible data transport
vim-colemak - Colemak key mappings for Vim. Consider using Coleremak instead.