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The development process of Wordbots (2016–2023)

alex.nisnevich.com
11 points·by alnis·قبل سنتين·0 comments

Show HN: Card game where players write their own cards that get parsed into code

app.wordbots.io
114 points·by alnis·قبل 3 سنوات·26 comments

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alnis
·قبل سنتين·discuss
Main developer of Untrusted here! I'm thrilled that people are still excited about this little game Greg and I made, 10 years later :-)

If you're interested in the development process behind Untrusted, I wrote a bit about it back in 2014: https://alex.nisnevich.com/blog/2014/10/17/some_words_on_unt...

And if you liked Untrusted, you might like my latest game, Wordbots. It's a very different take on the "players can modify the game code" concept: https://wordbots.io/

Alex
alnis
·قبل 3 سنوات·discuss
Thank you so much for the feedback! Unfortunately I screwed up the Discord link in the post – it's http://discord.wordbots.io/ , not https:// – but it was too late to modify the HN post after I noticed that.

Glad that you and your son have had fun playing it! He's definitely made the most cards in Wordbots of any user so far, so that's pretty cool :-)

I'll respond to each issue in turn:

Re: decks and card rarity – I hadn't thought of this when implementing card rarities (which right now take effect only in draft mode), but it's a good idea. I'll make an issue for it.

Re: state desync – I've never noticed this issue in testing, but I will admit that the multiplayer code is pretty sloppy (this part isn't exactly my strong suit). In theory the game should be fully deterministic (and the RNG is seeded identically for both players and the server), but it's possible that either a socket message got lost somewhere or there's some nondeterminism in some card behavior that I neglected to notice. If you encounter this again, please let me know what happened right before the desync – it'll help us narrow down the issue. And hashing the state and checking it periodically seems like a good measure to take for now; I'll make an issue for it.

Re: End Turn button unresponsive – This is a bug we've had in the past, and it was caused by an error occurring during combat, resulting in the game state thinking that an attack animation was still happening (so the turn couldn't end yet). I'm pretty sure that it's fixed now, but if you encounter it again, check the game debug log and JS console to see if anything weird happened right before.

Re: card draw trigger – Oops, this looks like an issue with how `afterCardDraw` is being triggered, should be an easy fix on my end. I'll take a look.

Re: Activate popover – Yeah, this is feedback we've gotten in the past, and we're looking into what a better UX for object activation could look like.
alnis
·قبل 3 سنوات·discuss
Very cool! This might be a good time to mention a JavaScript emulation I made of the EMS Synthi A, which was also present at the BBC Radiophonic Workshop (well, the closely-related EMS VCS3 was) and contributed, among other things, to some SFX for Doctor Who: https://github.com/AlexNisnevich/synthi-js

This was a project from 6-7 years ago and I had to rely on a third-party library for the web audio bits. If I re-did it today, I'd definitely do it all in native Web Audio.
alnis
·قبل 3 سنوات·discuss
I believe this is fixed now, with this parser commit: https://github.com/wordbots/wordbots-parser/commit/f713e5a68...
alnis
·قبل 3 سنوات·discuss
Hah, this is the keyword substituter incorrectly substituting "event" -> "action" (Action cards were called Event cards in an earlier version of the game). I'll fix that, but in any case, there's not any notion of preventing future damage currently.

P.S. Discord (https://discord.wordbots.io/) or GitHub (https://github.com/wordbots/) would be the best place to report issues like this at the moment.
alnis
·قبل 3 سنوات·discuss
Yeah, the poor parsing around "moved this turn" is a known issue that I'm going to look into fixing this week. (Someone actually mentioned it yesterday on our discord – they were attempting to make a card with the text "At the end of your turn, if this robot didn't move this turn, restore 2 health to this robot": https://discord.com/channels/301800217055985665/301800217055... )

"At the end of your turn, destroy this robot unless it moved this turn" or "At the end of your turn, destroy this robot if it didn't move this turn" are definitely phrases that ought to parse correctly, and there's already in-game support for these mechanics (it's purely a parser issue).
alnis
·قبل 3 سنوات·discuss
Re: balance – see a comment I made below on that: https://news.ycombinator.com/item?id=35879796

Re: frustration of writing cards – yeah, I definitely feel you on that. The grammar is fairly restrictive and there's generally just one way to make a given card action parse (you could say it's more like Python than Perl). One affordance that we've put in to at least make writing cards a little easier is the Dictionary/Thesaurus feature in the Workshop, that lets you see all the words and phrases recognized by the parser and examples of how each of them has been used in practice.

Re: sumbot – You can do something like "Startup: Set this robot's attack to the total attack of all robots, and set this robot's speed to the total speed of all robots, and set this robot's health to the total health of all robots."
alnis
·قبل 3 سنوات·discuss
You can definitely make an Action card with the text "You win the game" :-)

Wordbots doesn't have a built-in mechanism to enforce cards being at a "fair" power level. We initially had a few ideas for how to do it: some kind of machine-learning approach to determine how much "energy" a card should cost to play based on its text and stats, or having a server constantly simulating games between AI players with various cards to see how effective cards are in practice, or even a market-based mechanic where cards could be traded for in-game currency and how valuable a given card was would determine it's a "fair" card or not.

All of these approaches were ultimately abandoned as too complicated. Instead, we opted to just prioritize game formats where both players are equally likely to have access to any given card in-game:

  - In the Mash-up format, both players build a deck made up of any cards they want, but the two decks are shuffled together into one big deck that both players draw from.
  - In the Set format, players build their own separate decks but have to choose cards from a given "set" of cards curated by a player (and ostensibly the cards within a set should be roughly balanced).
  - In the draft formats (Set Draft and Everything Draft), both players are drafting from the same pool of crads.
This way, overpowered (and underpowered) cards can still be created by players, but at least in these game formats, both players would be equally likely to draw said overpowered cards.
alnis
·قبل 3 سنوات·discuss
Regarding M:TG vocabulary, Wordbots's syntax is a little bit different but a lot of the same effects are possible. For example, M:TG's Flametongue Kavu's "When Flametongue Kavu enters the battlefield, it deals 4 damage to target creature." becomes "Startup: Deal 4 damage to a robot" in Wordbots.

Some of the cards that people have been making so far in Wordbots are rough reinterpretations of cards from other games (M:TG, Hearthstone, Faeria, etc). Of course, many cards from these games wouldn't be possible to reimplement in Wordbots, as it doesn't have anywhere near the breadth of mechanics that these more-sophisticated games do. But also, there are some mechanics that are only possible in a game like Wordbots – such as https://app.wordbots.io/card/cnrssvyxfsp: > Replace "1" with "2", "2" with "4", "3" with "6", and "4" with "8" on all cards in your hand.
alnis
·قبل 3 سنوات·discuss
Oops, lack of licenses was my bad - good catch! Just added LICENSEs to clarify that both the game (https://github.com/wordbots/wordbots-core) and the parser (https://github.com/wordbots/wordbots-parser) are MIT-licensed.