moecs 0.1.0

Micro ECS engine. A small and lightweight ECS engine for Rust projects.
Documentation 
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pub use moecs_macros::System;

use std::sync::{Arc, RwLock};

use crate::entity::EntityManager;
use crate::system::SystemParamAccessor;
use crate::util::PropertyId;

/// A `System` is a process that operates over a subset of entities, generally with known
/// `Component`s. This is how `Component`s are able to interact with each other. External
/// information is able to be passed into the `System` via `SystemParamAccessor`.
///
/// Note: All user-defined `SystemParam`s must derive this trait via `#[derive(System)]`.
pub trait System: PropertyId {
    fn execute(entity_manager: Arc<RwLock<EntityManager>>, params: Arc<SystemParamAccessor>);
}