Add per-component tick tracking to SparseSet. Insert and get_mut mark
the current tick; increment_tick advances it. World gains query_changed
to find entities whose component changed this tick, and clear_changed
to advance all storages at end of frame.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Mini JSON writer/parser in voltex_ecs (no renderer dependency)
- ComponentRegistry with register/find/register_defaults
- serialize_scene_json/deserialize_scene_json with hex-encoded components
- serialize_scene_binary/deserialize_scene_binary (VSCN binary format)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- has_component<T> helper on World
- query_with/query_without for single component + filter
- query2_with/query2_without for 2-component + filter
- System trait with blanket impl for FnMut(&mut World)
- Ordered Scheduler (add/run_all)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
