sdec-bevy

Bevy ECS integration for the SDEC snapshot + delta codec.

What it provides

• Build a schema::Schema from Bevy components via BevySchemaBuilder.
• Extract per-tick creates/destroys/updates from a World.
• Apply decoded SDEC updates back into a Bevy World.
• Map Bevy Entity IDs to stable SDEC EntityId values.

Typical flow

1. Define replicated components with ReplicatedComponent/ReplicatedField.
2. Build a schema with BevySchemaBuilder.
3. Call extract_changes (or extract_changes_with_scratch) each tick.
4. Encode deltas with sdec-codec and send over your transport.
5. Decode and apply on the client with apply_changes.

Notes

This crate focuses on Bevy ECS integration only. Transport, packetization, relevancy, and chunking are handled outside sdec-bevy.

For a working example, see sdec-bevy-demo.