Ebiten
rust-playground
Ebiten | rust-playground | |
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54 | 71 | |
9,889 | 1,168 | |
- | 1.3% | |
9.8 | 9.5 | |
2 days ago | 7 days ago | |
Go | Rust | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Ebiten
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Lag Is Never Where You Want It... Or Don't Want It
Reading ebiten docs and source code they very clearly state that writing RGBA bytes to an image is slow, and shouldn't really be done every frame, at least many times per frame. This is where I thought my performance was being lost, and it sent me looking for answers for ages. Turns out, I was wrong and right.
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Making Games in Go for Absolute Beginners
I love Go, yet I've never thought of it as a language with usable game engines. I'm extremely happy to find I was very wrong about that!
I'm woefully behind the curve on compiling to WASM, though, and I've yet to experiment much with tinygo so I have no idea how far I would get in creating a game people could enjoy in a browser without having to download a big bundle of assets. It's reassuring to see WASM mentioned explicitly as a compilation target [1] by Ebitengine though.
[1] https://github.com/hajimehoshi/ebiten
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Ho did/do you remove cgo?
For other OSes, see https://github.com/hajimehoshi/ebiten/issues/1162
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Is there a love2d for c++?
What about learning Go with Ebiten? Or Rust with Bevy?
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What would be the closest thing to Unity/Unreal C#/C++ for Go to create games/animations/visual work?
Actually, there is a game engine in Go. Ebiten(gine) is actually really popular and has already been used for a few games in production
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How complex/big can I make games in Go?
Check out this thread, some of the linked repositories might be of help. https://github.com/hajimehoshi/ebiten/discussions/1527
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Spaceshooter in Go
// consider having a laser type to deal with orientation, etc // basic information to draw sprites, track position and update position type Body struct { // positions x float64 y float64 // velocities vx float64 vy float64 // get height and width from sheet.xml using sp width int height int } type Enemy struct { Body sp int health int } type Laser struct { Body sp int } type Mode int const ( ModeTitle Mode = iota ModeGame ModeGameOver ) var ( arcadeFont font.Face smallArcadeFont font.Face ) // fonts and sizes func init() { tt, err := truetype.Parse(fonts.ArcadeN_ttf) if err != nil { log.Fatal(err) } const dpi = 72 arcadeFont = truetype.NewFace(tt, &truetype.Options{ Size: fontSize, DPI: dpi, Hinting: font.HintingFull, }) smallArcadeFont = truetype.NewFace(tt, &truetype.Options{ Size: smallFontSize, DPI: dpi, Hinting: font.HintingFull, }) } // in the future have a laser type struct, spriteImgNum, and number of animations type Game struct { mode Mode level int // tracks location of player and maybe health Player struct { Body health int laserType int canShoot bool sp int // consider adding in height and width of player object // all of the sprites seem to be the same // TODO set global width } PLasers []*Laser Enemies []*Enemy ELasers []*Laser gameoverCount int } // load images func init() { // sprites img, _, err := image.Decode(bytes.NewReader(resources.Sprites_png)) if err != nil { log.Fatal(err) } gameImages, _ = ebiten.NewImageFromImage(img, ebiten.FilterDefault) // backgrounds img, _, err = image.Decode(bytes.NewReader(resources.Starfieldreal_jpg)) if err != nil { log.Fatal(err) } bgImage, _ = ebiten.NewImageFromImage(img, ebiten.FilterDefault) } // background image logic from // # https://github.com/hajimehoshi/ebiten/blob/master/examples/infinitescroll/main.go var ( theViewport = &viewport{} ) type viewport struct { x16 int y16 int } func (p *viewport) Move() { w, h := bgImage.Size() maxX16 := w * 16 maxY16 := h * 16 p.x16 += w / 32 p.y16 += h / 32 p.x16 %= maxX16 p.y16 %= maxY16 }
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Mac + opengl
I noticed a similar issue when I got my MBP with the framebuffer not matching the window size and this has to do with the DPI settings. This GitHub link helped me understand the issue better and I hope it can be of assistance to you https://github.com/hajimehoshi/ebiten/pull/1811
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crten - a small tool to view your pixel art with a CRT screen effect
This program also demonstrates how great Ebitengine is and how you can port GLSL shaders to it almost 1 to 1.
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Sharing Saturday #439
Basic gist: built in Go with ebitengine, medieval fantasy, pixel art
rust-playground
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Rust: Box Is a Unique Type
> The biggest annoying magic I found with respect to Box (and other std containers like Rc) is that they’re the only ones capable of storing fat dyn pointers. You can’t construct a hybrid_rc::Rc like you can with Box/Rc.
Anything can store fat dyn pointers, they're just like any other type in that regards.
Constructing them for a specific trait is easy and possible on stable (e.g. adding a `as_debug(MyBox) -> MyBox` method).
Making it possible to construct them for any trait is special to the built in pointers... on stable. On nightly with unstable features it's possible (and easy) to make any smart pointer type do this.
Code examples:
https://play.rust-lang.org/?version=nightly&mode=debug&editi...
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Fivefold Slower Compared to Go? Optimizing Rust's Protobuf Decoding Performance
That would be true if you used `Vec::clear` too, it doesn't allocate a new vector. My point was that you still end up running Drop implementations with RepeatedField, just not all at once. See https://play.rust-lang.org/?version=stable&mode=debug&editio...
- Xz: Can you spot the single character that disabled Linux landlock?
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How to Lose Control of Your Shell
That's a valid Unix path, but rust's quoting does nothing to stop it: https://play.rust-lang.org/?version=stable&mode=debug&editio...
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Borrow Checking Without Lifetimes
Self-referential structs work fine in Rust and always have.
https://play.rust-lang.org/?version=stable&mode=debug&editio...
The compiler will correctly prevent you from moving the value.
The other way to have a struct that starts out as non-self-referential and then becomes self-referential can be achieved with `unsafe` and `Pin::new_unchecked`, which is how `async {}` is handled.
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Improving Interoperability Between Rust and C++
In rust as currently stands: https://play.rust-lang.org/?version=stable&mode=debug&editio...
On the other hand, both this wrapper and yours are counterproductive if the element size is dynamic (e.g. perhaps you're dealing with some nonsense like:)
struct ITableColumn {
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New Linux glibc flaw lets attackers get root on major distros
Overflow checks turn into two's compliments' wrapping, but that's only considered acceptable because bounds checks are not turned off.
https://play.rust-lang.org/?version=stable&mode=release&edit...
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Atomics and Concurrency
I have no idea what you're talking about, but it sounds unnecessarily complicated and why I don't use Rust for any serious work.
This demonstrates the ABA problem in safe Rust: https://play.rust-lang.org/?version=stable&mode=debug&editio...
Substitute the sleep with a combination of doing computation/work and the OS thread scheduler, and you can see how the bug surfaces.
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Rust 🦀 Installation + Hello World
You can also try Rust online using the Rust playground: https://play.rust-lang.org/
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4B If Statements
(Click ... beside build to get assembly) https://play.rust-lang.org/?version=stable&mode=release&edit...
Unfortunately the go playground doesn't seem to support emitting assembly?
What are some alternatives?
Pixel - A hand-crafted 2D game library in Go
tokio - A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...
raylib-go - Go bindings for raylib, a simple and easy-to-use library to enjoy videogames programming.
trunk - Build, bundle & ship your Rust WASM application to the web.
go-sdl2 - SDL2 binding for Go
mdBook - Create book from markdown files. Like Gitbook but implemented in Rust
engo - Engo is an open-source 2D game engine written in Go.
Rocket - A web framework for Rust.
resolv - A Simple 2D Golang collision detection and resolution library for games
egui - egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native
Oak - A pure Go game engine
sqlx - 🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.