The full ECS (Entity-Component-System) library.

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Composed of two smaller libraries:

• world_dispatcher: the System part of the ECS.
• entity_component: the Entity-Component part of the ECS.

Read the documentation.

Why would you use this ECS library?

• Compatible with all platforms, including WASM!
• Fast enough on every operation, not just iteration.
• Minimal amount of dependencies.
• Small code size.
• Stable, tested, benchmarked, 100% completed.
• Ability to handle system errors instead of crashing.
• Convert both functions and closures into systems!
• Safe: only 3 unsafe in total. (compared to hundreds in mainstream ECS libraries!)

Usage

Add the following to you Cargo.toml file:

planck_ecs = "*"

Use it like so:

use planck_ecs::*;
fn main() {
    #[derive(Default)]
    pub struct A;

    let mut world = World::default();

    let sys = (|comps: &mut Components<A>, entities: &mut Entities| {
        let entity = entities.create();
        comps.insert(entity, A);
        Ok(())
    }).system();

    let mut dispatch = DispatcherBuilder::new().add_system(sys).build(&mut world);
    dispatch.run_seq(&world).unwrap();
    dispatch.run_seq(&world).unwrap();
    dispatch.run_seq(&world).unwrap();

    assert!(world.get::<Components<A>>().is_ok());
}

For more examples, see the two following repositories' example folders and documentation:

• world_dispatcher: information on systems, world and dispatchers.
• entity_component: information on entities, components and joins.

Maintainer Information

• Maintainer: Jojolepro
• Contact: jojolepro [at] jojolepro [dot] com
• Website: jojolepro.com
• Patreon: patreon