The top bar now carries a two-by-two grid of the four storable goods, each a big icon, the grouped pool and an arrow reading production against consumption (purchases excluded); hovering a chip names both daily figures. The quantity column reserves room for 99 999 999 999 so the layout never shifts as stocks grow.
formatResourceAmount paired each prefix with a divisor a thousand times too large, so a million tonnes printed as 1 kt; the steps now move together as kt, Mt, Gt and Tt.
The simple economy is now the default and the old simulation is frozen as the hard model, selectable per game. A nation keeps one resource pool available in every region, fed by public production works rather than private per-region stores, and construction and training begin at once, paced by the region's spare power instead of gathering materials over days.
Money is euro only: a per-inhabitant daily tax funds a treasury spent in a global market, where buy and sell lots trade against the world stock and move its price. The hard economy keeps its per-nation currencies, central banks and exchange rates.
Simple games skip the price-settling warmup and economic migration; the snapshot carries the economy model, the market and the pool figures the client draws. Added the matching test suites and the design briefs under docs/simple_economy.
Unit orders now gather steel and high-tech over the days before training, exactly as buildings do, and clicking a queued order reveals what it is gathering, its reserved budget and the soldiers it will draw.
The trade graph cached a producer-less node list under a stamp that already reflected the producers' stores, so every seeded mine stayed invisible to buyers and rare-good prices settled at a huge multiple of base; the storage nodes are now re-read after production.
Money gifts draw the giver's central-bank reserves in the denomination first, buy the rest from the issuing bank at the market rate, convert into the receiver's currency, and cannot buy from a bank their nation is at war with.
Pruned the finished design briefs (intelligence, stacks, air movement, politics performance, economy balance, training UI and FIXME) and refreshed the index and cross-references.
The server sent the whole army on every snapshot and the client re-cloned
the whole icon layer whenever a unit moved, so a settled world with a
standing army drained the broadcast loop and the frame loop alike.
- Ship only the units and city list that changed, keyed by a per-peer
fingerprint and a serialised hash, and merge those deltas on the client.
- Memoise the battlefield scan on a battle version bumped when a unit
joins, leaves or changes side.
- Skip the DOM writes for units whose snapshot object is unchanged, and
cache the unit-view inner nodes.
- Fold units, cities and tile markers onto the nearest world copy instead
of mirroring the icon layers, which re-cloned thousands of views every
frame; the small decoration layers still mirror, and only on a change.
Frame work at full zoom-out with units moving fell from ~190ms to ~6.5ms.
The trade graph's cache stamp mixed in the tile-improvement version, which a mine, mill or plant rebuilt in place bumps many times a day, so every city's sea-lane flood was thrown away and rebuilt. The stamp now keys on the transport network, the territory and the storage-node set alone: over ten days the rebuilds fall from hundreds to the 45 the world needs, and the daily resource tick from about 700 ms to about 150 ms.
The snapshot path is memoised against the counters that actually move it -- the per-civ headline population and GDP, the per-city building and per-nation government/research modifiers, the port and food bonuses, the road and railway tile counts and the ethnic make-up rebuild only when their version changes; the flattened visible set is cached alongside explored; and the HUD upkeep sums without building the labelled budget breakdown. DELTA_COLLECTIONS had drifted from the snapshot's key names (it listed gdpBaseline while the state ships productionBaseline, and tileEthnicity while the version is ethnicity), so the static baseline was re-sent as JSON on every broadcast; the collection/version pairs are now explicit.
Together a broadcast falls from roughly 60 ms to 18 ms and the bytes for fifty of them from 57 MB to 24 MB, and 200 in-game hours simulate in about a third of the time. regionTiles caches the per-city owned lists behind the daily economy walks, and supplier reserves read a region's headcount without deriving its GDP; getCityEconomy itself stays uncached outside a snapshot so a simulation read still reflects a direct population edit at once.
- The monthly budget breaks each expense into the resource bought, its quantity and the average price paid: tile improvements already did, and now every upkeep row (buildings, units, works, transport) does too.
- Private producers settle their daily wear from their own cash and borrow the shortfall from the central bank, so their cash never goes negative.
- Producers fund their own construction and upgrades on the same credit; the treasury pays only for public works, roads and railways, and no private purchase is filed as a public tile-improvement expense.
- The server settles the world until every commodity holds within 10% over a trailing seven days instead of a fixed 150, capped by --warmup (0 skips it).
- The shipped month report carries its label again, so the budget header and pager name the month.
The central bank now charts one point a day for a rolling ninety days, shipped rebased to 100, with alternating month columns named once along the bottom so no two dates collide; short games leave future days blank and the axis floor is pinned at 0 with the 100 baseline labelled. The market no longer clamps a price to 0.5-1.8x base: the day's supply and demand set an equilibrium (base * demand/supply) and the price eases toward it, so a sustained shortage lifts a good well past its old band while a glut cheapens it, and the price settles instead of compounding to infinity. The nation modal holds each scroll position across a snapshot rebuild so the foreign reserves below the fold stay put.
Food, steel, luxury and high-tech now share one flat month-long reserve. A region keeps bidding for the shortfall while its store is thin, so a war that empties a pantry refills it from the grid instead of starving; the harvest is served before the city load, unmet food bids the price up, the army's rations count as demand, and a converter that cannot cover its power bill idles instead of making a loss.
The delivery graph walks sea lanes any distance, so its walks are cached across days behind a road/railway/work/territory stamp and only dropped by a wartime unit move. Units are indexed per tile, market access and node populations are memoised for the day, and the server can settle a fresh world before serving (--warmup, 150 days by default).
Roadmap records the remaining follow-ups -- the politics/migration hot path and the luxury/high-tech price plateau -- and that freight's heavy energy draw is intended.
The index is still 100 at January 2000's prices, but the chart now plots only the last twenty-four monthly samples and its end labels follow the window, so the graph stops growing as the game runs. A test covers the 24-month window and its end labels.
The city buildings tab and the HUD's tile panel now draw the same card: an icon, name and status, a bottom-anchored button carrying the estimated price and build time, a quiet remove control and a hatched locked state, with the produce/consume/cost detail in a hover tooltip. The shared card lives in client/js/ui/card.js.
The tile dock is now a summary — description, production, people and their ethnic makeup, GDP and the improvements list — with a Management button that opens a full-size panel like the city and nation panels. Its Improvements tab holds the grouped Military, Transportation and Economic cards, so Road and Railway sit with the other works. City buildings sit in a two-row horizontal scroller with the built ones first, and the city panel now matches the nation panel's size.
AGENTS.md now asks for a minimal visual preview to be shown before a player-visible change is committed.
Rebalanced the resource rules so nothing is priced primarily in money: steel, electricity and high-tech lead every construction bill, chip foundries are seeded everywhere instead of being hand-placed, and cities open with stores of steel and high-tech. City building rows now lead with the resource bill and keep the money as an aside, and the region's resources expand into the buildings that demand them. Pulled the graph and cost maths into a framework-free shared/economy_graph.js, quoted currency through one helper, and gave every data table the same striping and row highlight.
The delivery graph now ships every route the viewer's own storage nodes could trade over, not just the legs that ran, and keeps exports as well as imports so goods leaving the nation appear. The map draws the idle routes grey beneath the active white legs, with a key entry for them.
The population map replaces its bare flow arrows with the arrows plus a disc textured with the origin nation's flag drifting from city to city, mirroring the merchandise that rides the trade graph.
City building orders now keep their production-queue slot but open in a materials phase: the order reserves the market value of its steel and high-tech, buys from the nation's own stores and reachable suppliers once a day, and only joins a construction line once the bill is settled, so a city with no supplier simply waits. The queue, the city panel and the quick view show the gathering progress instead of a stalled bar.
Buildings and tile improvements now take a tenth of the old time; unit training is untouched. Any material money left over is returned when the work completes.
Bulgaria (Sofia, Plovdiv, Varna...) and Northumbria (Newcastle upon Tyne, Washington, Gateshead...) join the roster with their own colours, currencies, city-name pools and 128x128 flag art. France and Britain also lead with their capitals now, Paris and London.
Every road, railway and tile work now rises as an economic construction site instead of a queue entry. A site gathers its materials over days from reachable regions, refusing any supplier quoting above the price it was budgeted at (a 1% tolerance); a day that buys nothing stalls the site, raising a red mark and letting the nation raise the budget to current prices or cancel it. The upfront budget covers the build cost plus the market value of its steel and high-tech, energy stays a grid draw, and any money left over stays with the finished work as a maintenance reserve.
That reserve now pays the work's own daily steel and high-tech wear before the treasury is billed, so a well funded work spares the state until it runs dry; the spent money is paid into the nation's regions. Building upgrades run through the same gather-build-maintain machinery, sharing the site's kind flag and target level. The legacy tile-work queue and the market building are gone.
Bundles the in-progress chart sizing for the central bank panel.
World generation now aims at a fixed share of the ice-free tiles (60%) instead of a minimum continent count, bisecting the water level for it rather than sweeping every step, and still joins the ocean into one body. Ice and tundra are the outermost rows only, scaled down on small maps so the fixtures keep usable land.
Cities score their site, coastal plains best and landlocked worst, avoiding tundra and desert. Every nation that holds a coast gets a port city on each island it owns, and any landmass left empty is settled by the nearest nation, so no land starts unowned. A coastal city opens with a port already built.
Bundles the in-progress work in the tree: the commodity monthly price series and inflation the central bank's chart reads, and the rolling city-to-city migration graph the population map draws as flow arrows.
Central banks now redeem the national money foreign banks hold, sell reserves to defend a weak rate, and cover part of strategic imports from reserves. Five repeatable technologies raise each commodity's output per unit of energy. Hostile troops on a road or sea lane sever trade, power and unit supply. Middlemen buy food to resell to neighbours at a markup, and starving regions buy before those topping up their buffers, which clears the landlocked famines. The economic map's trade graph gains a colour legend.
Production buildings are now independent private-sector agents: they keep what their output sells for, run only to the demand they can actually sell, and spend that cash on steel and high-tech upgrades when their demand grows. Grid power is a paid private flow between plants and their consumers, and regions synthesise the food their own harvest and the reachable market cannot supply.
Island regions no longer famine: a region with no reachable supplier grows its whole shortfall from energy, and grid power now feeds cities and food before the converters, so a famine never waits on a factory.
Bundles the in-progress tree cleanup that was already present in the working tree.
- Each nation has a currency and each region a private-sector cash basket, borrowing from its central bank at the bank's rate; the government may always pay, going into central-bank debt when its budget runs red.
- Resources are bought from reachable stores only: the region itself first, then same-nation regions, then foreign ones, paid for out of private cash or, for government orders, the treasury. Drawn national stores are paid to their owning region.
- A grid in deficit imports power from a reachable surplus grid instead of a market fallback; downgrading a building no longer refunds anything.
- The monthly budget lists each resource's economic value, expands to a resource-to-source tree and keeps a cash figure beside it.
- Regions report what their people went short of over the day; starved research buildings and power-starved works raise a private daily notice.
- The city panel gains a Resources tab: reserves per resource, their market value and the private sector's daily consumption.
- Five resources (energy, steel, food, luxury, high-tech) with per-city stores, a world market, delivery and material upkeep.
- Resource-producing tile works built outside cities; every nation opens with the works its economy needs.
- Real game-icons.net art replacing the dummy icons for the new resources and works, with the credits updated.
- An aircraft now returns to the nearest friendly airport instead of always its original home, so a plane rebased to a forward airfield can strike targets beside it; the browser mirrors the rule.
- A pillage's popularity cost is an instant shift that drifts back, not a generation-long grudge. Popularity and approval read the base opinion, while the grudge stays as the diplomatic memory.
- Doubled aircraft range: the fighter's effective reach is now 25 tiles and the bomber's 50, with missionRange raised to match.
- Political map country names were invisible because the label SVG had a zero-sized viewport, which some browsers never paint; size it to the world and guard it with a test.
- Added a Devlog button showing the ten latest commits, generated into client/js/devlog_data.js by scripts/generate-devlog.js and refreshed by the pre-commit hook.
- Worked through FIXME.md: the city button and a unit double-click now open the city, and the stat tooltip escapes the HUD so the unit panel cannot cover it.
- The server creates its game at startup and clients only join it; the Create game screen and the configure_game path are gone, and testing is a --testing server flag.
- A page on a loopback host signs in as adrien, claims France and gets the free, instant testing buttons, while the server grants free orders only to a loopback socket whose Origin is also loopback.
GDP per capita had no natural growth, so a nation's economy only moved
when population, buildings or war did. The summary stats also offered
inconsistent hover text: a native browser tooltip for popularity and none
at all for the budget.
- Every land tile now gains a constant 0.01% of the GDP per capita it
opened with, once a day. Because the amount is fixed the relative growth
rate tapers over the years. Each tile's opening figure is snapshotted
once and shipped to the browser, so the tile panel and the GDP-per-capita
map mode stay in step with the server.
- The population, GDP and GDP/capita tooltips show the relative growth:
against 1 January 2000 through the first year, then year on year. The
monthly captures now keep a rolling thirteen months for the baseline.
- Every summary stat explains itself through the same custom bubble.
Popularity's native title moved onto it, and Budget forecasts the next
calendar month at the current hourly net, as a compact figure such as
"+€3.28B/mo" (hoursInNextMonth follows the real calendar).
- The tile GDP breakdown shows gains with a plus sign (natural growth,
ports) rather than the old minus.
Added tests for the constant daily gain, the falling relative rate, the
first-year and year-on-year baselines, the snapshot baseline, the budget
forecast and the calendar month length.
A country's name is fitted to the shape of its holding without ever
squashing the letters, so a large holding with a short name ran out of
kerning before it filled the space.
- Raised MAX_KERNING from 2 to 5, letting the run open up further across
broad holdings.
- Noted at the top of the file that these figures are meant to be tuned by
hand and must not change how the tests behave.
The catalogue had grown a barracks, wartime shelters, an air-defense
battery, a warm-water port and a shipyard, but only as data: infantry
still trained without a barracks, shelters did nothing, and an airport was
just an airbase. Each building now names the rule it grants with a
`mechanic` id, so the simulation and the city panel describe the same
thing without magic strings.
- Barracks and shipyards open one more production line each. A line sticks
to one entry at full rate, so two units build at once rather than the
head absorbing every line; the base behaviour (one queue, overflow
carrying into the next entry) is unchanged.
- Wartime shelters keep 10% of civilians per level safe from bombardment
and are very hard to knock down, and ranged fire can now destroy a
building level outright, with no refund. Each building rolls its own
chance per point of damage, from a generator seeded off the world so a
bombardment replays identically.
- Air defense fires one volley at a hostile aircraft the moment it enters
the city tile, scaled by its level; a plane shot down never drops its
bombs.
- A port adds 1000 GDP per capita per level, per adjacent sea tile, to
every tile in its region.
- An airport draws a daily trickle of people from every other airport city
in the world, scaled by the destination's level.
- Wired the new effects into the city panel and taught the repeatable
Industrial Automation to satisfy other technologies' prerequisites.
Added tests for each mechanic and for the parallel lines.
Marching into enemy territory changes visibility every step, and each change
rebuilt the whole on-screen fog band. A tile's fog depends only on its own
level and its six neighbours', so the exact dependency radius is one tile, far
tighter than the vision radius.
- Every tile owns a fixed slot in one fog buffer, so rebuilding a tile never
shifts another's vertices and only the touched row spans are re-uploaded.
_applyKnowledge now diffs the visible/explored sets and hands the renderer
the changed tiles; buildFogTiles rebuilds them with their rings. On a 100x100
map a frontier patch is ~3-4 ms against ~80 ms for the band.
- A pan that leaves the built rows now builds only the newly exposed rows, and
the escape margin scales with the viewport, so dragging rebuilds rarely.
- _frame schedules the next animation frame before doing any work and catches
an error, so a one-off failure can no longer stop the frame loop for good.
- Added tests for the per-tile patch and the incremental pan.
adrien