Crate bevy_mod_props 

Provides utilities for stringly-typed data storage in bevy.

Features

This crate includes:

• Key-value properties for entities and the world. See props.
• Unique entity names and classes. See registry.
• Arbitrary unidirectional links between entities. See links.

fn setup(mut commands: Commands) {
    let mut gandalf = commands.spawn_empty()
        .set_name("gandalf")
        .set_class("wizard")
        .set_prop("likes_elves", true)
        .id();

    let mut bilbo = commands.spawn_empty()
        .set_name("bilbo")
        .set_class("hobbit")
        .set_link("talking_to", gandalf)
        .set_prop("has_ring", true)
        .set_prop("wearing_ring", false)
        .set_prop("health", 100.0)
        .set_prop("wearing", "elven_cloak");
}

fn system(world: &mut World) -> Result {
    let bilbo = world.entity_mut_named("bilbo")?;
    if bilbo.get_prop::<Estr>("wearing") == "elven_cloak" {
        if let Some(entity_talked_to) = bilbo.follow_link("talking_to")
            && entity_talked_to.get_prop("likes_elves")
        {
            // have the npc say something about bilbo's cloak here
        }
    }
    Ok(())
}

Modules

links

Adds simple links between entities.

props

Adds named properties to entities.

registry

Adds a global registry of unique entity names and classes.