bevy-game-loop-collection

Come usare

Copia il comando e controlla il pacchetto prima di installarlo nel tuo ambiente agente.
Controlla strumenti, credenziali e ambienti richiesti nel documento originale.
Descrivi input e risultato desiderato; confronta l’output con le fonti.

npx skills add https://github.com/thedivergentai/game-design-agentic-skills --skill bevy-game-loop-collection

Prima di iniziare

L’installazione non include abbonamenti, quote API o accesso ai file.
Stelle e installazioni indicano attività, non un test indipendente di qualità o sicurezza.

Documento Skill originale

Contenuto dal repository con titoli, esempi, codice, tabelle, link e immagini preservati.

Bevy collection loop

When to use

Load this when the run is about picking up objects and reaching a count.

ECS shape

Components: a collected flag and a quota resource you define.
Resources: run-wide tables live in a resource (bevy-data-resources), not an autoload.
Systems: mutate those components on Update or the fixed timestep. Use .chain() when damage must land before death.
Messages: one-shot facts (hit, pickup, quest advance) go through bevy-events-messaging. This file does not add a new event type name.

Coming from Godot

Godot idea	Bevy idiom
Pickup	A component marker. Detection waits on spatial queries.
Quota	A resource count.
Win	A state change via bevy-state-machines.

Scope

No pickup or collectible type exists in Bevy.
Trigger volumes belong with the physics skills once you choose a solver.

Expert Knowledge Delta

Target: Bevy 0.20+.

Core ECS types: Component, Resource, Query, Commands, Startup, Update, Fixed / FixedMain (bevy::time), .chain(), Plugin, DefaultPlugins, MinimalPlugins. Messages and observers are an ownership slot. See bevy-events-messaging for their APIs. Systems run in parallel unless .chain() orders the ones that conflict.

Who owns state

Piece	Owner	Who may mutate	Schedule
Data on one entity	`Component`	One system via `Query`	`Update` or `FixedMain`
One value for the whole app	`Resource`	One system	`Startup` to insert, then the schedule that reads it
Spawn	`Commands`	The spawning system	`Startup` for the initial world; later schedules for runtime spawn
Order that must not race	`.chain()`	The chained systems only	Same schedule
Plugin boundary	`Plugin`	`build` registers systems and resources	Before the app runs

Borrow rule: two systems that both mutably query the same component must be ordered (.chain()) or split so only one writes. Unrelated systems stay parallel. That is the ECS page rule, not a guess at a system-set API.

Decision

If you need	Do this	Do not
Per-entity data	`Component` + `Query`	A Godot node script
App-wide config or clock	`Resource`	Copy the value onto every entity
Stable simulation step	`FixedMain` and the `Fixed` clock	Tie simulation to raw frame `Update`
Startup spawn	`Commands` in `Startup`	Spawn from a render system
Cross-system notice that is not shared state	Message or observer slot in `bevy-events-messaging`	A new event type invented in this file
An API outside the documented set	Check the official docs first	A made-up crate or API

Load references/ecs-ownership.md for the ownership table.

NEVER

Do not pin /0.20.0/ in docs URLs. WHY: links stay on latest; the 0.20 target is stated once in prose.
Do not mutably query the same component from two unordered systems. WHY: the schedule runs systems in parallel unless .chain() orders them.
Do not invent a physics, navigation, networking, or XR crate here. WHY: this skill only names documented Bevy crates and modules.

No Godot node, resource, or signal types for this mechanic. WHY: Bevy code stays idiomatic ECS and uses only documented Bevy APIs.

No Godot types in Bevy code. WHY: Bevy code stays idiomatic ECS and uses only documented Bevy APIs.
No invented APIs or unnamed third-party crates as the chosen solver. WHY: Bevy code stays idiomatic ECS and uses only documented Bevy APIs.

Reference

docs.rs links use the unversioned latest permalink. The library pin on bevy-master stays 0.20.0.

Official Documentation

Migration guides - Unversioned hop index.
bevy crate - API reference and Cargo feature list.
Assets - Official asset catalog. No third-party crate was selected.
Examples - Example tree on the latest branch.
ECS - Component, systems, Query, Startup, Update, and .chain().
Plugins - Plugin, DefaultPlugins, MinimalPlugins, and add_plugins.

Related Skills

Prerequisites

bevy-master - Hub and schedules.
bevy-ecs-composition - Components and systems.
bevy-state-machines - Win and lose states.
bevy-data-resources - Tables and definitions.
bevy-events-messaging - One-shot facts.

Complements

bevy-state-machines - Mode flags.
godot-game-loop-collection - Equivalent Godot skill.

Downstream / consumers

None yet.

Master

bevy-master - Bevy router.