feat(simulation): multi-threaded executor + EntityRng (#843 Part B)

Enable Bevy multi-threaded executor via bevy_tasks multi_threaded
feature. Systems within the same TickPhase that don't share mutable
resources now run in parallel automatically.

Add EntityRng component — per-entity ChaCha20Rng seeded from
world_seed + StableId via splitmix64 mixing. More deterministic than
shared SimRng (order-independent). Migrate all monologue systems
(4 of 13 SimRng consumers) to EntityRng, removing contention that
serialized them against conversation/dialogue systems.

Add rayon dependency (infrastructure only, no par_iter calls yet).

SimRng retained for world-level randomness: conversation pairing,
knowledge transfer, dialogue, ticker, storyteller.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

This commit is contained in:

jpmschweitzer

2026-04-11 00:08:41 +02:00

co-authored by

Claude Opus 4.6

parent 309c05d441

commit 2175e9b31c

5 changed files with 128 additions and 19 deletions

									
										server/Cargo.toml
									
		+2
		
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				@@ -6,6 +6,8 @@ edition = "2021"

				[dependencies]

				bevy_ecs = "0.18"

				bevy_app = "0.18"

				bevy_tasks = { version = "0.18", features = ["multi_threaded"] }

				rayon = "1"

				serde = { version = "1", features = ["derive"] }

				serde_yaml = "0.9"

				ron = "0.8"