tetra 0.2.6

A simple 2D game framework written in Rust

Tetra

Build Status Crates.io Minimum Rust Version Documentation License Gitter chat

Tetra is a simple 2D game framework written in Rust. It uses SDL2 for event handling and OpenGL 3.2+ for rendering.

Note that Tetra is still extremely early in development! It may/will have bugs and missing features. That said, you're welcome to give it a go and let me know what you think :)

Features

  • XNA/MonoGame-inspired API
  • Efficient 2D rendering, with draw call batching by default
  • Simple input handling
  • Animations/spritesheets
  • TTF font rendering
  • Multiple screen scaling algorithms, including pixel-perfect variants (for those chunky retro pixels)
  • Deterministic game loop, à la Fix Your Timestep

Installation

To add Tetra to your project, add the following line to your Cargo.toml file:

tetra = "0.2"

Tetra currently requires Rust 1.31 or higher.

You will also need to install the SDL2 native libraries - full details are provided in the documentation.

Examples

To get a simple window displayed on screen, the following code can be used:

use tetra::graphics::{self, Color};
use tetra::{Context, ContextBuilder, State};

struct GameState;

impl State for GameState {
    fn draw(&mut self, ctx: &mut Context, _dt: f64) -> tetra::Result {
        // Cornflour blue, as is tradition
        graphics::clear(ctx, Color::rgb(0.392, 0.584, 0.929));
        Ok(())
    }
}

fn main() -> tetra::Result {
    ContextBuilder::new("Hello, world!", 1280, 720)
        .build()?
        .run(&mut GameState)
}

You can see this example in action by running cargo run --example hello_world.

The full list of examples is available here.

Support/Feedback

As mentioned above, Tetra is fairly early in development, so there's likely to be bugs/flaky docs/general weirdness. Please feel free to open an issue/PR if you find something, or leave a question in the Gitter chat.

You can also contact me via Twitter, or find me lurking in the #gamedev channel on the Rust Community Discord.