sim/CHANGELOG.md

# Changelog

Notable changes to this project are documented here.

## [Unreleased]

### Added

- Expose the Picard actor console over the `/api/actors/ws` WebSocket endpoint.
- The world can be split into shards that each own a strip of columns. People and animals that walk across a shard border are transferred with their inventory and stay reachable at the same address.
- Jobs and trading: every shard founds markets, farms, woodcutters, quarries, hunters, toolmakers and cartwrights. Adults are hired, commute to their job site each day, work their shift, sell the goods at the market, get paid and go home.
- Markets are actors with their own coins and stock; prices follow local supply and demand, and buyers and sellers haggle.
- Farmers sow fields that ripen into crops; gatherers fell trees, quarry stone and hunt; crafters buy materials and make tools and carts.
- Carts are actors that add carrying capacity, wear out and can be bought at the market.
- Merchants carry their market's surplus to markets on other shards and bring back bargains.
- People earn and spend coins; workers buy tools, meals and food for the village.

### Changed

- People, rabbits, wolves, and partnerships are Picard actors that own their state; the world only reaches them through messages. Actors are named `person-<id>`, `rabbit-<id>`, `wolf-<id>`, and `partnership-<id>` instead of `entity-<id>`.
- Rabbits killed by hunters no longer move or breed later in the same tick.
- Update Picard to `054449c`.
- The default world is larger: 192×128 tiles with 180 people, 1200 rabbits, 80 wolves, and twice the food and houses.
-												dev: update AGENTS.md

											
										
										
											2026-10-12 11:47:04 +00:00
+								# Changelog
 								Notable changes to this project are documented here.
 								## [Unreleased]
 								### Added
 								- Expose the Picard actor console over the `/api/actors/ws` WebSocket endpoint.
-												feat: shard-aware world with transparent actor transfers

Add a router that delivers actor messages locally or to the shard that
currently hosts the entity. People and animals that leave their shard's
columns depart with their full state, forward messages while in flight
and are re-admitted on the destination shard. Enlarge the default world.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

											
										
										
											2026-10-12 17:20:30 +00:00
+								- The world can be split into shards that each own a strip of columns. People and animals that walk across a shard border are transferred with their inventory and stay reachable at the same address.
-												feat: jobs, markets, haggling, carts and merchants

Each shard founds markets and workplaces (farms, woodcutters, quarries,
hunters, toolmakers, cartwrights). Adults are hired, commute to work,
sell their goods at the market, get paid and go home. Markets, workplaces
and carts are actors; prices follow local supply and demand and trades
are haggled. Merchants trade with markets on other shards through the
router, so they do not know whether a market is remote.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

											
										
										
											2026-10-12 18:10:22 +00:00
+								- Jobs and trading: every shard founds markets, farms, woodcutters, quarries, hunters, toolmakers and cartwrights. Adults are hired, commute to their job site each day, work their shift, sell the goods at the market, get paid and go home.
 								- Markets are actors with their own coins and stock; prices follow local supply and demand, and buyers and sellers haggle.
 								- Farmers sow fields that ripen into crops; gatherers fell trees, quarry stone and hunt; crafters buy materials and make tools and carts.
 								- Carts are actors that add carrying capacity, wear out and can be bought at the market.
 								- Merchants carry their market's surplus to markets on other shards and bring back bargains.
 								- People earn and spend coins; workers buy tools, meals and food for the village.
-												refactor(world)!: make Picard actors own entity state

People, rabbits, wolves and partnerships are now Picard actors that own
their state and apply their own rules (ageing, hunger and meals,
starvation, energy, breeding costs, death, birth intervals). The world
no longer keeps mirrored Vecs that were read from and written back to
generic entity actors every step; it only reaches entities through
typed messages and replies, correlated by request id through a single
inbox actor.

World-level state (terrain, resources, stockpile, houses, calendar, the
world random stream) stays in the world, and behaviour decisions stay
on the simulation thread because the Rune VM is not Send. Replies are
processed in entity order and each person has its own persisted random
stream, so runs and snapshot restores stay deterministic.

Rabbits killed by hunters no longer move or breed later in the same
tick.

BREAKING CHANGE: Picard actors are named person-<id>, rabbit-<id>,
wolf-<id> and partnership-<id> instead of entity-<id>, which changes
the paths used with the actor console.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

											
										
										
											2026-10-12 14:47:44 +00:00
 								### Changed
 								- People, rabbits, wolves, and partnerships are Picard actors that own their state; the world only reaches them through messages. Actors are named `person-<id>`, `rabbit-<id>`, `wolf-<id>`, and `partnership-<id>` instead of `entity-<id>`.
 								- Rabbits killed by hunters no longer move or breed later in the same tick.
 								- Update Picard to `054449c`.
-												feat: shard-aware world with transparent actor transfers

Add a router that delivers actor messages locally or to the shard that
currently hosts the entity. People and animals that leave their shard's
columns depart with their full state, forward messages while in flight
and are re-admitted on the destination shard. Enlarge the default world.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

											
										
										
											2026-10-12 17:20:30 +00:00
+								- The default world is larger: 192×128 tiles with 180 people, 1200 rabbits, 80 wolves, and twice the food and houses.