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//! # DCES
//!
//! DCES is a library that provides a variant of the entity component system.
//!
//! Features:
//!
//! * Filter and sort entities for systems
//! * Define priorities (run order) for systems
//!
//! **The library is still WIP. API changes are possible.**
//!
//! [](./LICENSE)
//!
//! # Example
//!
//! ```no_run
//! use dces::prelude::*;
//!
//! #[derive(Default)]
//! struct Name {
//! value: String,
//! }
//!
//! struct PrintSystem;
//!
//! impl System<EntityStore, PhantomContext> for PrintSystem {
//! fn run(&self, ecm: &mut EntityComponentManager<EntityStore>) {
//! let (e_store, c_store) = ecm.stores();
//!
//! for entity in &e_store.inner {
//! if let Ok(comp) = c_store.get::<Name>("name", *entity) {
//! println!("{}", comp.value);
//! }
//! }
//! }
//! }
//!
//!
//! let mut world = World::from_entity_store(EntityStore::default());
//!
//! world
//! .create_entity()
//! .components(
//! ComponentBuilder::new()
//! .with("name", Name {
//! value: String::from("DCES"),
//! })
//! .build(),
//! )
//! .build();
//!
//! world.create_system(PrintSystem).build();
//! world.run();
//!
//!
//! ```