Crate sparsey

Sparsey is an Entity Component System (ECS) based on sparse sets.

Example

use sparsey::World;

struct Position(i32, i32);
struct Velocity(i32, i32);

fn main() {
    let mut world = World::builder()
        .register::<Position>()
        .register::<Velocity>()
        .build();

    world.create((Position(0, 0), Velocity(1, 2)));
    world.create((Position(0, 0), Velocity(2, 3)));
     
    world.for_each::<(&mut Position, &Velocity)>(|(position, velocity)| {
        position.0 += velocity.0;
        position.1 += velocity.1;
    });
}

Features

• std (on by default): link to the std crate.
• parallel: enable parallel iterators.

Usage

The most important items from Sparsey crate are World and Entity, which are re-exported at the root of the crate for easy access. A World is a collection of entities and components thas supports create/read/update/delete (CRUD) operations, while an Entity is a versioned index used to reference components within a World.

Re-exports

pub use self::entity::Entity;

pub use self::world::World;

Modules

component

Component storage and management.

entity

Entity storage and allocation.

query

Query and iterate entities and components.

world

Manage and query entities and their associated components.