Starting a new 2d platformer with ECS

[@anonymousnyancat3231]

Awesome work. Learned about a lot of awesome crates; I've wasted so much time rolling my own bevy asset loader for projects....

[@Metruzanca]

This is a great intro! Knowing that LDTK exists now is massively useful.

[@chrisbiscardi]

LDTK is great, and bevy_ecs_ldtk has been keeping up to date with every Bevy release too.

[@RootsterAnon]

@@chrisbiscardi what is more supported Tiled or LDTK? I have found some examples that use Tiled as level editor and then we create and load levels in compile time.

[@chrisbiscardi]

@@RootsterAnon generally I consider ldtk to be better supported as there's a bevy_ecs_ldtk which is a crate that maintains an integration. There isn't really a similar crate for Tiled, although there is some example code in the bevy_ecs_tilemap repo examples to use and I am using that code myself in my current project

[@valentinussofa4135]

Very recommended KZbin account for rust learner. 👍

[@Speykious]

"[...] and I have some experience *finishing* games with the engine, not just starting them." Dude why you call me out like that ;-;

[@ikaridev7419]

how tf does this only have 400 views!? PS. cool

[@ralfwright]

Wait what. Yeah how??!?!?

[@ralfwright]

Bad luck maybe??

[@Thisone95]

Cool video. Also this video and your shapecasting video form a 2 video recommendation loop for me.

[@chrisbiscardi]

Interesting, it does for me too. Unfortunately I don't think I have control over the final recommendations after the videos end. Only the cards that appear before that. So not sure how it got into a loop! 😅 There is a playlist if you're interested in more of this project though - kzbin.info/aero/PLWtPciJ1UMuAoCq8NAw8J-n387U4QHFBW

[@ivailobosev]

Really great skills. Love your rust videos. I know you are building a platformer and not a rpg, but can you please take some time to explain a bit about mouse/controller input and specifically how to rotate character based on mouse (controller stick) position?

[@chrisbiscardi]

I recorded some audio on the gamepad controls today. Hoping for a thursday video release for that video

[@nickgennady]

It’s all 2D vector math. Joystick would just be normalized 2D direction. The joystick is basically giving you direction already. Mouse is bit more tricky. You need to get direction from mouse to player. Something like (MousePosotion - PlayerPosition).normalized. Than just rotate sprite to look in that direction. Not sure exactly how you want to render sprite but it would just be converting vector to angle if you want to use 1 sprite for all directions. Vector to angle is basically dot product and cross product. There examples online. It may be worth looking at Godot and Unity 2D tutorial videos to learn the math.

[@MonLes-xt7gc]

So cool

[@baggern]

a fellow nushell user? 🤩

[@chrisbiscardi]

yup! love it!

[@fotisgimian4258]

Honest question but how do you get by without comprehensive git completions? I love nushell too but this is keeping me in PowerShell for now 😀

[@Prajwal____]

But where is bevy ui? Is bevy a framework?

[@chrisbiscardi]

Bevy currently doesn't have an editor UI built-in like godot/unity/etc. There are some community attempts to create one (such as github.com/jakobhellermann/bevy_editor_pls) but nothing official yet. It's definitely on the roadmap though. You will have to write Rust to use Bevy today

[@pilotashish]

which window manager are you using in the video?

[@chrisbiscardi]

It's yabai on macos github.com/koekeishiya/yabai

[@oykunj3630]

Can bevy be used to make a game that runs inside a browser with a sever backend?

[@chrisbiscardi]

yes, Bevy has examples in the repo that compile to wasm and run in the browser and there are people who have made network-connected games that run this way.

[@Phosphoros47]

Thanks for the video! ❤ what window manager do you use?

[@chrisbiscardi]

I use yabai on macos, I talk about it here: kzbin.info/www/bejne/l6GoiaCAhZqrrtk

[@Phosphoros47]

Thank you so much!!!

[@OxAA00]

Super interesting I have been working on a 2D platformer with bevy, too. I find it very hard to implement a good fsm in an ecs environment though. What are your experiences with bevy so far?

[@chrisbiscardi]

I like Bevy quite a bit. I think that the "ECS for everything" approach has generally panned out well for the games that I've built so far. I'm about to implement more complicated movement controls for the platformer, specifically relating to jumping/coyote time/etc so there will definitely be a video about that when it's done.

[@OxAA00]

@@chrisbiscardi Cool! I was going to implement coyote time next but my experience with rust/bevy is not top notch so I currently have a very brittle state machine. Looking forward to your approach. :)

[@doguguwww]

Awesome！！

[@Kfoo-dj4md]

You mentioned that you want to use rapier, but I see you are using heron in the source code, are you replacing it with heron? If yes, could you please explain why?

[@Kfoo-dj4md]

Nvm, just checked the library and it’s powered by rapier

[@chrisbiscardi]

@@Kfoo-dj4md yeah it is, but I'm also going to remove heron for a couple of reasons and switch to the official bevy_rapier plugin. Mostly because I need ccd in one of my games and also because I need to adjust gravity for better jumps halfway through the jump and heron makes that hard

[@kaviisuri9997]

could you create a video explaining your setup (terminal emulator, shell, code-editor etc? it looks awesome. Cool video!

[@chrisbiscardi]

Yeah I'll put it on my list to make

[@burrowta]

@@chrisbiscardi interested in this too, specifically what VS Code theme is that? Looks really clean

[@spesterwecial]

Chiming in wondering which tiling window manager tool you’re using 😊

[@spesterwecial]

Welp, then I found that answered in another thread. 🚀

[@error.418]

@@spesterwecial What was the answer? Edit: it's yabai

[@burrowta]

Good content but I found it hard to follow along with the dialogue whilst there was video being played back that was only slightly relevant. Maybe this format isn't for me, but it would be good if you had presented something to talk to for added context

[@principleshipcoleoid8095]

bevy_esc_ldtk examples just baffle me. I only see where they actually made the player entity grab the Sprite, why other entities have ANY sort of visibility is black magic for me.