- Replace vertical "research ladder" list with a visual tech tree rendered as
connected node badges showing prerequisites and branch structure
- Add `initialField` parameter to `openResearchScreen` to open on a specific
category instead of always defaulting to the first one
- Add "View Research" shortcut button on turn report when a tech completes,
jumping directly to that field
- Add Cerebrai species research video (research-cerebrai.mp4)
- Add branching tech alternatives across all six fields (computers,
construction, forcefields, planetology, propulsion, weapons). Each
branched tier has 2+ techs sharing the same rung; researching any one
clears the rung while leaving siblings researchable as side-picks.
- Correct racial skill to affect tech COST only (Poor 125%, Average 100%,
Good 80%, Excellent 60%), not availability. Availability is now a flat
50% roll per tech (75% for Cerebrai/psilon analogue), with a safety
net that no branched rung can end up with zero available options.
- Add techRungsByField data structure and rungCleared/canResearch/setResearchTarget
logic so the research screen lets players pick among open rung alternatives
without losing banked beakers.
- Update sprite sheet layout (+1 row, frames 66-77 for new tech icons).
- Add comprehensive verification tests for cost buckets, rung gating,
setResearchTarget behaviour, and statistical availability rates.
Introduce colony naming with a 50-name bank per species, shuffled
per-empire and displayed as defaults in naming prompts. Colony names
now appear across all UI layers (star map, side panel, colony view,
system view) with the astronomical designation as fallback.
Add three pure-flavor conversation topics to diplomacy: "Their People"
(neutral+), "Their Homeworld" (friendly), and "A Story" (friendly).
Each diplomacy-capable species receives unique lore-rich responses
(3 variants each) reflecting their culture, homeworld, and history.
Other changes:
- Switch ursaal videos from generic "human" assets to species-specific
- Widen diplomacy buttons to 200px; add auto-shrink for long labels
- Add ±5 population transport buttons to colony view
- Validate colonyNames (50+ entries, no duplicates)
- Enforce minimum lore variant counts in verification
- Add colony info layer showing per-empire colony rosters (name, orbit, pop)
stacked up-left of colonized stars with colored bars and connector lines
- Change "Range as light" to "Explored as light": reveal only actually
explored stars (not fuel-reachable) with smaller 1.1pc radius
- Extract VegaTechEffects.js with human-readable descriptions for all
tech effects, replacing raw key/value dumps in turn report
- Expand building unlock rows to include building descriptions
- Reorganize ship completion rows: hull icon and commander portrait now
display below the full-width synopsis instead of beside it
- Bump zuma level 8 config to level 21 "Sun Cove" with new path and params
- Reset fleet selection when showing a new fleet so it starts at full strength
- Offset moving fleet sprites by (-26, -22) to prevent blocking star click targets
- Track newly unlocked building IDs in research completion events
- Add one-click bulk-queue buttons in turn report for newly researched buildings
- "All Colonies" queues at every colony
- "Colonies with positive BC" filters by net income (trade minus upkeep)
Replace the eager `ensureAudienceVideos()` warm-up (which loaded all three
mood clips per species upfront) with on-demand JIT loading — only the mood
about to be shown is fetched. This saves several megabytes per species since
most conversations never cycle through all moods.
- Remove `ensureAudienceVideos()` and its call in `openAudienceScreen()`
- Load each mood clip only when `show()` is first called for that mood
- Show a letterboxed placeholder for the very first clip until the fetch lands
- Keep whatever is already on screen while a new mood loads in the background
- Add `destroy()` guard to prevent in-flight fetches from mutating a torn-down
container when the audience screen is closed
Also ship the dedicated Kestrelli audience clips (angry, neutral, happy) to
replace the previous human fallback videos for that species.
- Add Colony Transport ('poptransport') hull, dispatched directly in transit
from a Send Population order rather than built from the queue. Shares the
Troop Transport's hull art and uses the colony ship's commander clip.
- Implement VegaLogic sendPopulation/deliverPopulation flow: clamped to
maxSendablePopulation (leaves 0.5 floor), creates poptransport fleet
immediately, auto-delivers on arrival capped at destination max pop.
- Add Send Population button and overlay picker in colony view with
destination list, ETA display, amount dial, and MAX button.
- Log populationSent/populationDelivered events in the turn report.
- Refactor VegaAudience mood visuals to play-once-and-hold-last-frame with
a clickable replay badge, mirroring VegaColonyIntro's video contract.
- Seed human audience mood clips (angry/neutral/happy) into artwork config
as placeholders for all diplomacy-capable species.
- Add verification tests for poptransport mechanics and video aliasing.
- Rewrite contact detection from proximity-based (parsec-range) to
star-scoped: empires now meet by sharing a system (colonies or fleets),
making first-contact a visible event rather than a silent background
check.
- Add full-screen Audience interface (VegaAudience.js) with species-specific
mood videos (or letterboxed portrait fallbacks), a typewriter chat log,
and contextual action buttons. Auto-opens on first contact via a queue
system in MasterOfVegaGame.
- Add VegaChat.js with unique dialogue pools for all 9 diplomacy-capable
species across 18+ situations (first contact, peace/alliance offers,
war declarations, tech trades, accept/reject responses, etc.).
- Introduce held diplomacy offers: AI proposals to the human are queued
(pendingOffers) instead of auto-resolved, with player Accept/Reject
buttons in the Audience screen and automatic expiry after 6 turns.
- Add audienceVideos config and JIT-loading infrastructure in VegaArt.js.
- Add ship videos for kkrix and mekhan species.
- Simplify openDiplomacyScreen to a single "Seek Audience" button.
- Fix colony view to filter out 'starbase' from building display list.
- Add comprehensive verification in tools/verifyMasterOfVega.js for
contact system, held offers, chat completeness, audience videos,
and serialization of new state fields.
- Remove obsolete contactRange rule from mastervega-rules.json.
Promote buildingDone and shipDone events from ticker-only to notable
interrupting events with dedicated report rows. Each row now displays:
- A building icon or ship hull icon + commander portrait
- Clickable ship detail overlay (video/image portrait)
- "View Star System" shortcut button for quick navigation
Mirrors the existing treatment of discoveries and research completions,
giving players immediate visual feedback on production milestones.
Replace the turn-report "New Turn" popup row with a cinematic vignette that
plays the moment the player plants a colony: the soundtrack ducks, the world's
1920×1080 backdrop fills the screen, a 960×544 clip of this world being settled
plays in a framed window, and the founding numbers are read out underneath.
Key changes:
- Add `colonyVideos` block (15 clips, one per colonisable planet type) to
artwork JSON; clips are fetched just-in-time via ensureColonyVideo() when a
colony ship reaches a settleable world, keeping the set (~19 MB) out of the
eager manifest
- Add `vega-colony-cue` audio to the eager manifest for the founding soundtrack
- Remove `colonised` from NOTABLE_TYPES and TYPE_LABEL so the event is no longer
announced twice (once in the vignette, once in the turn report)
- Add `sourceWidth()` guard in VegaArt.js to fix a Phaser Video placeholder
width bug exposed by the non-square 960×544 colony clips (2.5× scale issue)
- Apply `sourceWidth()` to portrait and commander video scaling paths as well
- Add depth entry `intro: 78` to VegaScreens.js for the vignette overlay
- Add section 6b to the verifier: checks manifest exclusion, key conventions,
sourceWidth() behavior, turn-report classification, and colony stats
See build-plan trap #23 for the full sourceWidth() explanation.
Introduce looping commander videos (256×256) alongside ship thumbnails in
the side panel and colony catalogue. Each species×hull combination loads
its officer clip from shipVideos, falling back to portrait video → still →
procedural sheet. A scene-lifetime pool (VegaShipMedia.js) prevents decoder
thrash on every panel rebuild.
Add VegaShipDetail — a full-resolution pop-over (D.detail depth 76) showing
the commander at 256px, hull at 192px, derived stat block, and knapsack
loadout. Opens from both the side panel and colony screen without stacking
through openModal.
Add a "New Turn" popup (VegaTurnReportScreen) that interrupts the player
for notable events (discovery, first contact, diplomacy, eliminations).
Events are classified and sorted by consequence in VegaTurnReport.js.
Logic now emits 'discovered' events when fleets enter unexplored systems.
Update asset manifest to load nested shipVideos, extend verification to
validate shipVideoKey conventions, bump ships sheet to 192px frames, and
document the new art contract.
- Add human ship spritesheet (ships.png) and increase frame size to 192x192
- Add jungle world background texture (world-jungle-01.png)
- Add human ship animation videos (scout, frigate, destroyer, cruiser,
battleship, transport, colony)
- Enable species card selection with required choice before starting game
- Disable "Begin" button until a species is selected
- Add title logo breathing animation and light sweep effect on landing screen
- Reposition title and start button on landing layout
Move colony management (sliders, build queue, catalogue) from the
system-view modal into a dedicated full-screen colony view
(VegaColonyView.js). The system view now inspects worlds read-only
with a "View Colony" button to open the management screen.
Key changes:
- Add VegaColonyView.js with colony screen, build queue flyout,
scrolling catalogue, allocation sliders with padlocks, and
planet-type backdrops
- Add world backdrop artwork support (1920×1080, one per planet type)
declared in mastervega-artwork.json worldBackgrounds
- Add headless queue helpers to VegaLogic.js: collapseQueue,
moveQueueRun, colonyBuildRate, queueEtas, enqueueMany
- Fix star map pointer blocking (drags no longer pan map through modal)
- Move ORBIT constant to VegaScreens.js, add D.colony depth layer
- Update docs (build-plan, sprites) and verification suite
The colony screen stacks over the system view without requiring a
second modal, hiding the system layer and pausing the orrery while
open.
Replace the static destination ring with a flowing dashed line that indicates the fleet's path and direction of travel.
Introduce setSelectedFleet to highlight specific fleet markers and track live routes for fleets already underway.
Fix depth sorting in the system view (orrery) by grouping bodies and sorting by Y position on every frame.
Introduce VegaSidePanel, a right-hand command panel with three modes:
star (system summary), fleet (ship count selectors), and order
(distance, ETA, Accept/Cancel). Replaces the inline fleet-order flow
with a callback-driven architecture where the scene owns selection
state and the panel only reads the engine and reports clicks.
Add fleet detachment logic to VegaLogic:
- splitFleet: carve a new idle fleet from an existing one
- sendDetachment: validate against actual stacks, normalize duplicates,
probe reachability on a copy, and rollback on refusal
- etaTo: compute ETA scoped to the selected detachment (slowest hull
in the selection, not the whole fleet)
VegaStarMap gains blockPointer (prevent pan/zoom over the panel),
onEmptyClick (dismiss panel by clicking void), and a rotating selection
reticle.
Section 4b adds ~32 verification checks covering ETA accuracy, ship
conservation, out-of-range refusals, duplicate normalization, star-base
immobility, and the idle-fleet merge rule.
Updates mastervega-build-plan.md to document the new panel and
verification section.
- Remove Tooltip import and onStarHover callback from MasterOfVegaGame; system view now stays closed for unexplored stars until a scout arrives.
- Make VegaStarMap own its Tooltip via attachTo, replacing the removed onStarHover handler.
- Show unexplored stars at all zoom levels (dimmed) so they remain hoverable targets and display an UNEXPLORED tooltip.
- Split out habitableForEmpire from canColonize so the star map and tooltips use the same tech-aware habitability check (planet type + current planetology tech) instead of the static colonizable flag.
- Change starting exploration: only the home system is explored; all other stars remain unexplored until a scout physically arrives.
- Add VegaZoom.js with Phaser-free zoom ladder builder, verifiable headlessly
- Replace hardcoded ZOOMS array with galaxy-sized ladder anchored so the
bottom rung exactly covers the viewport
- Remove 160 px of pan slack in clampPan so empty space can never be dragged
into view
- Key semantic-zoom thresholds (isFarZoom / isNearZoom) to ladder index
instead of absolute scale, keeping behaviour consistent across galaxy sizes
- Add section 3b to verifyMasterOfVega.js with 163 new checks covering
ladder coverage, covering-zoom invariant, top-rung reach, and tiny-galaxy
single-step collapse
- Add video, still, and procedural three-tier portrait system for all 10 species
- Add species-specific speech clips and UI voiceover (SpeechQueue integration)
- Add landing screen with New Game / Resume / Return to Arcade buttons
- Add species detail pop-over with animated expand/collapse and auto-introduction
- Add game-specific soundtrack (masterofvega-music.json, 4 tracks)
- Add video asset type support in assetLoader and PreloadScene
- Add portraitVideos and portraitStills sections to artwork manifest
- Add verification for portraits, speech clips, and music tracks
- Update sprites.md with documentation for new assets and filenames
Introduces Master of Vega, a turn-based 4X strategy game built on MOO1 rules with MOO2 conveniences. The implementation features a fully headless, deterministic engine (VegaLogic) with zero Phaser dependencies, enabling complete Node-based verification (809 checks) and reproducible galaxy generation via mulberry32 RNG.
Key features:
- Preset ship hulls with an auto-refitting Mark system and provably monotonic knapsack loadouts.
- Tactical grid combat with banked damage resolution to eliminate first-strike bias.
- Galactic Council diplomacy, stalemate-breaking, and invasion forecasting.
- Drop-in artwork compatibility with procedural stand-ins for all spritesheets.
- Hireable leaders (admin/captain) and colony building queues.
Architecture splits cleanly into headless modules (GalaxyGen, Logic, AI, Combat, Diplomacy, Ships, Leaders) and a render tier (StarMap, SystemView, CombatView, Screens, Nebula, Art, Fx). A comprehensive build plan documents 19 architectural traps discovered and resolved during development.
Registers the game in the registry, asset manifest, preload scene, and soundtrack service. Includes tools/verifyMasterOfVega.js for automated rule validation, art verification, economy balancing, and AI self-play soaking.
Introduce barbarians as a non-diplomatic civ appended to state.civs,
providing escalating pressure that scales with difficulty and target
civ era. Key mechanics:
- Uprisings spawn on explored tiles, capped by a growing population
limit to keep raids an event rather than a fourth empire
- Era-based pressure curve: raids decay as a civ advances, stopping
entirely at hard-stop techs (industrialization/conscription/railroad)
- Killing hordes summons a Barbarian Leader with an escort; cornering
the lone leader triggers a gold ransom scaled by era and difficulty
- Captured cities are either razed (small) or held inert (large)
- Leader expires after a set lifetime if not ransomed
Diplomacy and AI carefully exclude barbarians to prevent three traps:
shared-enemy attitude pollution, permanent war phase pinning, and
government ladder lockout. Pre-feature saves remain compatible.
New assets: optional civilization-barbarians.png sheet (8 frames).
Updated sprites.md and unit tooltips. Comprehensive verification tests
added in verifyCivilization.js.
- Allow bikes to exceed normal turbo speed when holding through cool
zones with turbo engaged, rewarding track knowledge
- Emit 'cooldown' event when entering cool zones to clear center msg
- Add coolZoneBoostSpeed tune constant (240) with design documentation
- Update physics invariant checks to use new speed cap
Introduce a second detection layer independent of line-of-sight vision.
Radar buildings (Radar Tower, Advanced Radar) provide coverage that reveals
unit positions through fog as contacts, while Radar Jammers can blind enemy
radar within range without affecting normal sight.
Key changes:
- Add three sensor buildings: Radar Tower, Advanced Radar, Radar Jammer
- Implement computeRadar() with jamming logic and stampDisc() optimization
- Add isDetectedBy() for radar contact detection
- Draw radar contacts as green diamond blips in WorldView
- Show radar contacts as neutral green pips on minimap
- Expand build grid to 2 rows and artwork sheets to 4 rows
- Refuse repair orders on airborne units; builders stop chasing airborne targets
- Add validation for radarRange and jamRange in rules compiler
- Update sprites.md documentation and add comprehensive tests
Add `air` and `fortification` armor classes to enable more nuanced
balance. Aircraft now use `air` class instead of light/medium, and
defensive turrets use `fortification` instead of `structure`, allowing
weapons to specialize against planes and defenses without affecting
other targets.
- Add armor classes to all 12 weapons with appropriate multipliers
- Adjust weapon stats (sniperrifle, rocketpod, shoulderrocket)
- Reduce HP on several combat units for balance
- Reclassify aircraft and defensive turrets to new armor classes
- Add repair and rally command buttons with custom glyphs and tooltips
- Refactor bottom command bar into a structured, discoverable grid with
visibility filtering per selection type
- Replace patrol's there-and-back with a circuit-based route system;
CTRL-clicking extends the patrol instead of stacking orders
- Builders guarding structures now repair damage first, then assist
production — assist to producing factories now works correctly
- Add Commander death cascade: nuclear blast, outward vaporization wave,
and screen-wide flash timed to the audio sample
- Introduce `fortification` and `air` armor classes; rebalance weapons,
unit HP, and ranges across the roster
- Remove the static hint line; all commands now have prompts and button
tooltips instead
- Add verification tests for patrol routes, guarding builders, vaporised
entity rendering, and the full command bar
Replace hover-based aircraft movement with a two-state system: LANDED
(grounded, cannot shoot, vulnerable to all weapons) and FLYING (at
cruise speed, uses air domain protection). Aircraft can no longer stop
in mid-air; armed units execute strafing passes with overshoot and
come-about logic.
Key changes:
- Add `liftFrac` simulation state for altitude, `airborne` dynamic flag
(vs static `isAir`) so landed aircraft are ordinary ground targets
- Implement `stepStraferOrders` for aircraft that overfly targets and
repeat passes; idle aircraft clear hostile keepout zones
- Add `overshoot` and `keepout` flight properties to fighter/bomber
- AI gains static defense (Laser Tower, Missile Launcher) at skill 4+,
with threat-based placement and economy gating
- Fighter gains ground gun (pintlegun); air management uses `airClaimed`
set instead of interceptor-only classification
- Update campaign m05 seed (71644) to compensate for balance shifts
- Update tooltips, documentation, and tests for new behavior
Closes#1234
- Add `flight` blocks to Fighter, Bomber, and Hover Constructor in rules JSON
defining height, takeoff time, and landing time
- Implement purely cosmetic altitude system: units ease upward when given
orders and settle back down when idle, using smoothstep easing
- Shadow stays pinned to ground position, fades in and shrinks as altitude
increases — the gap between body and shadow sells the height
- Health/build bars move with the lifted body; selection ring stays on ground
- Add production dials (progress pies) on the player's own factories:
top-left shows whole queue progress, top-right shows unit on the bench
- Pass real delta time to render() for framerate-independent takeoff animation
- Update sprites.md with flight system docs and art implications
- Add stub scene support and comprehensive verification tests
Introduce a two-layer domain system (ground/air) that separates units into
independent simulation layers. Air units ignore the nav grid, never collide
with ground units, and can only be targeted by weapons listing "air" in their
targets. Hover units gain water-crossing ability via the move class cost table.
New content:
- Fighter (air interceptor with AA cannons)
- Bomber (ground-attack aircraft with bomb rack)
- Hover Constructor (water-crossing builder)
- Airfield (produces all three air units)
AI gains air superiority management: interceptors hunt enemy aircraft instead
of joining ground pushes, and the production mix auto-counters observed enemy
air. Ground anti-air (rocket troopers/tanks) also gain targeting weight.
Rendering adds a dedicated depth band for aircraft above all ground actors,
plus a displaced shadow sprite for altitude perception. HUD tooltips display
domain and weapon targeting information.
Validation ensures domain/moveClass agreement, requires at least one anti-air
weapon when air units exist, and excludes air classes from corridor generation.
Comprehensive test fixtures cover domain separation, collision, splash, and
order handling.
feat(zuma): redesign level 7
feat(shift): add 9 new artwork pieces
chore: remove Worms game entirely
- Goo Tower: introduce `asleep` state for pile balls. Asleep balls ignore physics/wandering and cannot be picked up until they gain a clear line of sight to an attached structure. Adds zZzZz visual, editor toggle, auto-play filtering, and logic tests.
- Goo Tower Lvl 9 & Zuma Lvl 7: completely redesigned terrain, ball/pile positions, and pipe placement.
- Shift: register 9 new artwork pieces.
- Worms: remove all source files, assets, verifier, build docs, and game wiring.
Add new shift-themed artwork images (cat-on-tiger, flying-over-the-city,
japanese-road, octo-mecha, paris-in-rain, steampunk-sky-city, tiger-warrior)
and register them in shift-artwork.json. Update game-icons.png and .psd.
Add optional background image to the worms game mode select screen.
The image is loaded via asset manifest and displayed behind UI elements.
Reposition buttons to accommodate the new background layout.
Add Worms (inspired by Worms Armageddon) as a new arcade game with:
- **Procedural terrain** — seeded Island and Cavern generation, full destruction via `carveCircle`, girder placement, ROCK immunity
- **Bespoke physics** — worm locomotion (walk, jump, backflip, ballistic flight, fall damage), projectile simulation with wind/bounce/homing, ninja rope with corner wrapping, explosion geometry with linear falloff
- **16 weapons** — Bazooka, Grenade, Cluster, Shotgun, Uzi, Fire Punch, Dynamite, Mine, Air Strike, Homing Missile, Holy Hand Grenade, Blowtorch, Girder, Teleport, Ninja Rope, Skip Go (+ Surrender)
- **Match rules engine** — 45s turns, retreat phase, sudden death with rising water, crates, mines, oil drums, chain reactions, deterministic hash-based state
- **8 themes** — Forest, Desert, Farm, Hell, Arctic, Jungle, Construction, Space with full procedural palettes and drop-in art hooks (`data/worms-artwork.json`)
- **Phaser scene** — mode select, quick match setup, camera, HUD, weapon panel, slingshot aim, 2-player hotseat
- **Headless verifier** (`tools/verifyWorms.js`) — 207 checks across terrain, physics, weapons, and match logic; deterministic through the sim
- **Wiring** — registry (iconFrame 92), main.js scene registration, slug dispatch, asset manifest resolver, preload
Also updates `level-008.json` with new solid/spike geometry, additional balls and strands, and repositioned pipe.
Remove the entire Angry Birds implementation including physics solver,
game logic, Phaser scene, level data, verification tool, and registry
wiring. Also delete the build-plan documentation.
Meanwhile, upgrade Goo Tower rendering: spikes now have faceted steel
teeth with dynamic lighting, rust speckling, and twinkling glints;
lava features layered heat gradients, animated flow streaks, and
rising bubbles. Update gootower levels 6-7 and zuma level 6.
Replace the "ride the rim" gear mechanic with instant ball destruction on
contact. Update hazardAt(), resolveTerrain(), and all related tests.
Redesign level 5 ("Watch Out") and level 6 with new terrain layouts
featuring gear hazards, updated ball/pipe/pile positions.
feat(shift): paginate artwork selection and reveal on completion
Add page navigation to artwork cards when there are more than one page,
and fade in the completed artwork over the puzzle after winning.
chore: add 9 new Shift artwork entries
- Add gear.png and pipe.png sprite assets for GooTower
- Replace procedural drawGears() with rotated sprite instances for better performance
- Replace procedural drawPipe() with sprite art and separate procedural glow overlay
- Add patchy grass strips along top-facing terrain edges with variable depth and two-tone coloring
- Add mottled dirt texture pass clipped to polygon bounds
- Introduce helper functions (hash01, topFacingEdges, pointInPoly) for texture rendering
- Update asset manifest to include new gootower images
- Add background parallax layer that follows camera pan/zoom at a reduced
rate for depth perception
- Replace fixed world-height Y clamping with dynamic level content bounds
computed from terrain, pipe, and balls
- Add per-ball eye wander and desynchronized blink cycles for livelier
ball rendering
- Reorder pickBallAt priority so direct clicks on detachable attached balls
take precedence over loose balls, preventing accidental structure detachment
AngryBirdsLogic.js layers the game onto the Wave 0 solver: wood/stone/ice
plus TNT with distinct density, friction and fragility; damage as a health
model with crack stages rather than instant shattering; all 8 birds with
one ability per shot; scoring, stars, win/lose, and a stepSim -> events[]
contract the scene replays as FX.
The load-bearing discovery is that damage must read approach velocity, not
the solver's accumulated normal impulse. The accumulated value carries the
static load of everything stacked above: measured 3.4e5 at the base of a
10-block stone tower, above the threshold that should shatter wood. Wiring
damage to it makes tall towers quietly crush themselves at rest, and it
reads as a level-design bug rather than a physics one. prestep now also
publishes contact.impactImpulse — the momentum needed to stop the approach,
zero at rest by construction. Resting fell to 2.4e4 against real hits of
1.9e5 to 2.7e6, and the whole material table was calibrated by measurement.
AngryBirdsGame.js maps the 2400x1080 logical level through fixed sx()/sy()
helpers at scale 0.78 rather than zooming the camera, which keeps HUD text
in plain screen coordinates. Slingshot drag, ghost trails of previous
shots, level select, star tracking and progress persistence are in. A
follow-camera is deliberately deferred to Wave 5 — it is pure presentation
and cannot be validated headlessly.
Six starter levels ship as the Poached Eggs opening. All stand unaided,
none damage themselves on load, and a greedy aim sweep clears every one.
Registered as slug angrybirds, iconFrame 92, under Video Games.
tools/verifyAngryBirds.js -> 114 checks green. Peggle (909) and Excitebike
(620) still pass; Goo Tower's 2 failures are pre-existing and unrelated.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M1wNRvLLtyfCDAET7oYouf
Angry Birds is fundamentally a rotating rigid-body stacking game, and
neither existing engine could be extended into it: PeggleLogic collides a
moving circle against static pegs with no rotation, and GooTowerLogic has
no angular state at all because its rigidity is emergent from
triangulation. Matter.js ships in the CDN Phaser build but is not
importable in bare Node and not reproducible, which would forfeit the
verifier, the generator's measured star thresholds, and the editor's
winnability gate.
AngryBirdsPhysics.js is a bespoke solver: convex polygons and circles,
uniform-grid broadphase, SAT with reference-face clipping to 2-point
manifolds, sequential impulses with warm starting keyed on stable feature
ids, Coulomb friction, split-impulse position correction, and island
sleeping.
Split impulse rather than plain Baumgarte is the load-bearing choice.
Biasing the real velocity makes penetration proportional to load, so the
bottom contact of a 10-box tower sank ~9x deeper than the top and the
stack sagged 12.85px. Correcting position through a discarded
pseudo-velocity removes a fixed fraction of the excess per substep
regardless of load; sag is now 0.46px per contact, exactly the slop band
we deliberately allow.
Gate: 10-box tower settles in 0.68s and sleeps with <1px drift and 0.35
degrees of tilt; friction holds on a 15 degree slope and slips on 40;
replay is bit-identical and frame-rate independent; 40 monkey seeds
produce no NaN, no overspeed and no sinking.
tools/verifyAngryBirds.js -> 51 checks green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M1wNRvLLtyfCDAET7oYouf
Playtest fixes (two reports, both bugs):
- Bad ground no longer instantly crashes: holes and obstacles only
put you down above surfaceCrashSpeed; below that you bog to a crawl
that is capped under the crash speed, always escapable
- Steep ramps (45°) no longer crash: launch lifts the bike clear of
the lip, pitch is clamped to pitchMax, and landing angle is clamped
to landGroundAngleMax so straddled cliff edges don't count as
rideable surfaces
- Harness now drives every ramp at seven speeds; no crashes allowed
Wave 5 polish:
- Scenery: infield and apron shrub rows (bush, apronBush, tuft)
transcribed from NES track maps
- Ramps given readable silhouette (packed-earth hatch, dark stroke,
lit crest, sheer-face cut)
- Gaps show infield through lane; lane dividers and cool-zone
chevrons fixed for alternating-lane contrast
- Snow and night themes retinted for visibility
- iconFrame 91 already painted
Tooling:
- Map reader masks ramp columns to avoid false mud/cool-zone detection
- All 10 track qualifyMs retuned from playtest measurements
Updated build plan and sprites docs.
Address three fidelity issues found during Brian's playtest:
- Throttle: base speed 150→175, heat now chases a target (0.5 for A, 1.0 for B)
so holding A alone settles the meter halfway without stalling.
- Turbo: overheat window extended to 6–8 seconds (heatRiseRate 1/7s), turbo speed
275→235 against 175 base (57% boost). AI rivals now use hysteresis (heatOff/
heatOn) instead of feathering around a single threshold.
- Landing: tolerance is lopsided — rear-wheel-first is safe (landCleanBack 0.45 /
landHardBack 1.20), nose-down is strict (landCleanNose 0.32 / landHardNose 0.92).
Crash rates across banks dropped from 1.3–5.9 to 0.2–3.0 per 1000px.
Other changes:
- Qualify targets: max(human × 1.06, expert × 1.12) so a perfect ride has margin.
- Fix NaN in countdown caused by renamed heatRate constant.
- Soak bands re-based; added monotonic ordering check (expert > human > steady > naive).
- Title screen now shows controls and "LAND REAR WHEEL FIRST" hint.
- All 10 track qualifyMs values retuned to new physics.
Brian Fertig