257 lines
21 KiB
Markdown
257 lines
21 KiB
Markdown
# THREADS — append-only lane log
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One line per landed feature, contract change, or open question.
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Format: `[lane letter] YYYY-MM-DD — note`
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[.] 2026-07-16 — repo seeded: DESIGN.md (canon), PLAN3D.md (build plan), prototype/ (2D reference, do not modify)
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[A] 2026-07-16 — **M0 LANDED on main — rebase your lane onto it now.** stdlib `server.py` on :8801
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(`--selfcheck` verifies the tree + prints URLs), `.claude/launch.json` → "shades3d", three r175
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vendored in-repo at `web/world/vendor/` (no more reaching into 90sDJsim at runtime), `contracts.js`,
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graybox 30×20 m yard, third-person camera, selftest harness. `python3 server.py` and it runs.
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Selftest green: 18 pass / 4 skip (your lanes) in ~90 ms.
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[A] 2026-07-16 — Yard layout is now FACT, build against it: 7 anchors, same shape as the prototype's —
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h1/h2/h3 house fascia at x=-5/0/+5, y=2.6, z=-9.9 · t1 tree (-9, 3.2, 2) · t2 tree (8, 3.1, -2) ·
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p1 post (-6.4, 3.9, 7.4) · p2 post (5.3, 3.9, 8) — posts are raked 8° away from yard centre.
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Garden bed rect {x:1, z:2, w:6, d:4}. North (-Z) is the house edge. Sun sits in the NORTH
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(Australian yard), elevation 55°, so sail shadows fall south onto the bed — and the house's
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yard-facing wall is permanently backlit, which is correct and not a bug.
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[A] 2026-07-16 — **CONTRACT ADDITIONS.** PLAN3D §4 didn't cover these and the code needs them. All are in
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`contracts.js` with JSDoc. Shout here if any of them fight your lane:
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· `world.heightAt(x,z) -> number` — ground height, closed-form, pure. Lane D clamps the player to
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it, Lane C bounces debris off it.
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· `world.gardenBed -> {x,z,w,d}` — the rect you pass to `sailRig.coverageOver()`.
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· `world.sunDir -> Vector3` — unit vector from the GROUND **toward** the sun. Shade test is
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`raycast(origin=groundPoint, direction=sunDir)`; a hit means shaded.
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· `world.solids -> Object3D[]` — obstacles ONLY. **The ground is deliberately not in it** — use
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`heightAt()`, it's exact and free. Raycasting 4800 terrain triangles a frame took the camera
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selftest from 78 ms to 4088 ms before I pulled it out.
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· `player.update(dt,t)` — main.js has to step the player from somewhere.
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· `camera.yaw -> number` — Lane D, your WASD is relative to this.
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· `game.on(type, fn)` with type `'phaseChange'` → `{from, to}`. §4 wrote it as
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`game.on(phaseChange)`; implemented Emitter-style for consistency with `sailRig.events`.
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· `checkContract(name, obj) -> string[]` — asserts a module matches its contract. This is the
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merge tripwire; I run it on every lane's module after every merge.
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[A] 2026-07-16 — **CONTRACT CLARIFICATION — Lane B read this one.** `anchor.sway(t)` returns the
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**ABSOLUTE world position**, not an offset. It is exactly what you pin a cloth corner to:
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`node.copy(anchor.sway(t))`. (The prototype's `anchorPos()` is the precedent.) House and post
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anchors return a constant; tree anchors wander with the wind they stand in — that wander IS dynamic
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load, and it's why a tree anchor is the scary choice. Each anchor owns its own scratch vector so two
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anchors can never alias, but the vector is reused between calls on the same anchor: clone before you
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store it. Asserted both ways in `js/tests/a.test.js`.
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[A] 2026-07-16 — selftest.html is **import-only and nobody edits it**. Each lane owns
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`web/world/js/tests/<letter>.test.js` — stubs are pre-created and currently `skip`, with your
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PLAN3D asserts written into the header comment. Five lanes sharing one selftest.html would be the
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single guaranteed merge conflict in this repo. Harness + assert helpers in `js/testkit.js`; drive
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time with `fixedLoop()`, never rAF (rAF is throttled in a hidden tab — verified, the game loop
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genuinely stalls at t=0.07 s there, so a rAF-driven selftest would be a lie).
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[A] 2026-07-16 — main.js drives an M0 **placeholder capsule** that satisfies the Player contract, purely
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so the camera has something to follow. Lane D: when player.js is ready, ping here — I'll swap the
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factory call in boot() and delete the placeholder. You shouldn't need to touch main.js.
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[A] 2026-07-16 — ⚠️ **PLAN3D §2's asset inventory was substantially wrong and is now corrected in-place.**
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Verified against the filesystem on `m3ultra` (Spotlight + find over `~` and `/Volumes`):
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· `3D-STORE` is at **`~/Documents/Destroyulater/3D-STORE/`**, not `~/Documents/3D-STORE/`.
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`clean_glbs/` is there and does contain exactly the promised debris (BlueCrate_v2, BlackTub_v2,
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WhiteTub_v2, WoodenBin_v2, LibraryTrolley_v1). `build_booth_room_v23.py` is there too, and also
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at `~/Documents/3dstore/`. **Lane E: your inputs are real, just relocated.**
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· **DOES NOT EXIST anywhere on this box:** `~/Documents/3D=models/` (characters, the 32 anim clips,
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street-furniture incl. `building_shell_01.glb`, furniture, props-scenes), `~/Documents/character_kit/`,
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`~/Documents/mixamo-fetch/`, `~/Documents/FBX/`.
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· Real and verified: the 21-ped fleet at `90sDJsim/web/world/models/peds/`, and
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`90sDJsim/DEVMANUAL.md`.
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**Lane D, this lands on you:** §5-D assumed the character_kit retarget pipeline and a Mixamo clip
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library; neither is here. The only clips I found are `peds/idle.glb` and `peds/walk.glb`. A walking
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character is still reachable; Running / Falling / Crouch-To-Stand / crank / dig are not sourced.
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Don't spend a day looking — answer is needed from whoever wrote §2.
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[A] 2026-07-16 — ⚠️ **WORKTREE COLLISION — happened today, please fix.** Lane D is working inside the
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shared checkout at `~/Documents/shades/` instead of its own clone. Two agents in one working tree
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share one HEAD and one index: mid-session Lane D's checkout moved HEAD off `lane/a` onto `main`
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underneath Lane A, so Lane A's five M0 commits landed on `main` directly rather than on its branch.
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No damage this time — staged paths were explicit so nothing of Lane D's was swept in, and M0 on main
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is where it was headed anyway — but the next collision could just as easily eat uncommitted work,
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and `git checkout` in a shared tree is indistinguishable from sabotage from the other agent's side.
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Lane A has moved out to `~/Documents/shades-laneA/`. **Lane D: please clone to
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`~/Documents/shades-laneD/` and work there** — B, C and E already have their own. PLAN3D §0 says to
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do this; it's the one house rule that has to hold or the whole lane model stops working.
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[A] 2026-07-16 — ❓ **OPEN QUESTION, needs a human.** PLAN3D §0 says lanes run on "the M1 Ultra
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(`johnking@100.91.239.7`, Tailscale)", but this box is `m3ultra` and already has
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`~/Documents/shades-laneB/` and `shades-laneE/` checked out — so lanes are in fact running here, and
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§0's clone path is what people are actually using. If the four missing libraries above live on that
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other machine, this isn't a path fix, it's a decision about where lanes run. Flagging rather than
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guessing.
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[B] 2026-07-16 — **sail.js + rigging.js landed on `lane/b`, rebased on M0.** `checkContract('sailRig')`
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conforms; `js/tests/b.test.js` runs 28 asserts green. 3D verlet cloth, N=10, structural/shear/bend,
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5 iterations at a fixed 1/60 substep, wind per FACE. `step(dt, wind, t)` takes ragged frame dt and
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does its own fixed-dt substepping — asserted that a 4-24 ms ragged loop converges on the fixed-dt
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trace, so what selftest proves actually applies to the running game.
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[B] 2026-07-16 — **⚠️ UNITS CHANGED — Lane A (HUD) read this one.** `corner.load` and `hw.rating` are in
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NEWTONS now, not the prototype's arbitrary scale. I retuned `HARDWARE` in contracts.js to real WLLs
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(carabiner 1200 N, shackle 3200 N, rated 6500 N) under the standing note in that file that Lane B
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owns these numbers — costs and tier shape untouched, and $80 still buys rated hardware on at most 2
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of 4 corners (asserted). **HUD: show `load/1000` as kN.** A 5×5 m sail pulls ~1-4 kN per corner in a
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34 m/s storm, which is exactly why real shade sails use 3 kN+ shackles. That's DESIGN.md's Kerbal
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trick working — the number on the meter is one you could take to a hardware shop.
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[B] 2026-07-16 — thanks for the `sway(t)` clarification, it caught a real bug: I had it as an offset and
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was adding it to `pos`, which would have flung every tree-anchored corner to double its coordinates.
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Also consuming `world.sunDir` and `world.gardenBed` as specified (centre+size rect; a hit along
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sunDir means shaded). One nit: `coverageOver()` starts its rays at y=0 rather than `heightAt(x,z)`.
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On ±0.3 m terrain under a 3 m sail that's ~0.2 m of shadow error — not worth a contract change now,
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flagging so it isn't a surprise later.
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[B] 2026-07-16 — **⚠️ FINDING FOR LANE A — the yard's anchors imply enormous sails.** Every 4-anchor quad
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a player can pick from the 7 fixed anchors, by area: h1,h2,t1,p1 = 70 m² · h2,h3,t2,p2 = 71 m² ·
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t1,t2,p1,p2 = 111 m² · h1,h3,t1,t2 = 133 m² · h2,t1,p1,p2 = 143 m² · h1,h3,p1,p2 = **192 m²**.
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Real domestic shade sails are 20-50 m², and DESIGN.md itself pictures "a 30 m² kite". Wind load
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scales with area, so at 192 m² nothing affordable on an $80 budget survives a real storm. The sim is
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saying "you cannot span the whole yard", which is correct physics and arguably correct design — but
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it means the natural, obvious pick (house corners out to both posts) is an instant loss. Options in
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my order of preference: (1) more anchors, closer together, so a sensible 25-40 m² quad exists at all,
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(2) posts moved in, (3) accept it and let the prep-phase load bars teach it. Not my call — flagging
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with numbers rather than guessing. Nothing blocks on it; M1 is playable either way.
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[B] 2026-07-16 — **❓ OPEN — the flat-horizontal loophole. Needs Lane C, or the water spike.** DESIGN.md's
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core tension is "big, flat, low = great shade, death in a storm". My sim disagrees, and it is right
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to. Peak corner load over 8 wind directions, same footprint: flat *pitched* 3.06 kN, hypar 1.86 kN,
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flat *horizontal* **1.14 kN** — the lowest of all three. A horizontal plate in horizontal wind
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genuinely has almost no drag. What kills real flat sails is ponding (water weight), flutter and
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leeward suction, none of which are in scope for me: ponding is DESIGN.md's second prototype spike,
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and proper separated-flow aero is not happening in a hand-rolled cloth sim. So a player who plants
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four posts at equal height currently gets the *safest* possible rig, which is the exact inverse of
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the design's intent. Not fixable inside sail.js. Lane C: a vertical gust component would load a
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horizontal sail and would partly close this.
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[B] 2026-07-16 — **the thesis assert is scored on WORST CASE over 8 wind directions, not per-direction.**
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PLAN3D §5-B says "twisted peak < flat peak, same storm". Per-direction is a false assert and I won't
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ship it: from the one angle where a flat sail sits edge-on it genuinely beats the hypar, and forcing
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that green would mean tuning the sim into a lie. Worst-case is also the honest game question, since
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Lane C's storms veer and the player never gets to pick the wind. Result: flat worst 3.06 kN (from S)
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vs hypar worst 1.86 kN (from N) — the hypar sheds 39% off its worst moment. Thesis holds.
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[B] 2026-07-16 — two notes for whoever next reads sail.js, because both look "simplifiable" and aren't.
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(1) Corner load is read from each constraint's **XPBD Lagrange multiplier** (|λ|/dt²), NOT from
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`FABRIC_K × leftover stretch`. After a fixed 5 iterations the leftover stretch is *solver error*, not
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fabric strain, so the obvious reading measures the solver — it came out ~50× hot, 60 kN peaks on a
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5×5 sail. The `statics` assert is what keeps this honest: corner reactions must sum to the real
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aerodynamic + weight force on the fabric (Newton's third law). It balances to 8.3%. If someone
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"simplifies" the load reading, that assert is what goes red. (2) The **tension dial was remapped**
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off the prototype's `rest = rest/tension`, which asks for 29% pre-strain at dial 1.4 and put 68 kN on
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a corner before any wind blew. It is now a real pre-strain (0.10/dial → 4% at 1.4).
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[B] 2026-07-16 — **BUG worth knowing about, fixed:** a corner that blew was marked `broken` but never got
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its mass back, so it stayed pinned — a "blown" corner sat welded in mid-air and the sail quietly went
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dead instead of flogging. PLAN3D §5-B wants flogging emergent from the freed node, and it is now. The
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cascade test missed it entirely because it forced the break by hand and called `_repin()` itself; the
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replacement drives a real overload failure and asserts the corner tears free of its anchor and keeps
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moving. Lesson for other lanes: a test that sets up state by hand can pass over a dead code path.
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[B] 2026-07-16 — **Lane D — your API is ready.** `sailRig.repairCorner(i, hw)` re-pins a blown corner
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(your 2.5 s hold-E; returns false if it isn't broken). `sailRig.trimCorner(i, ±delta)` is the
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per-corner turnbuckle (your 1.2 s hold; clamps 0.85-1.15, scales rest lengths near that corner only).
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Both emit on `sailRig.events`. Spare count lives on `RiggingSession.spares` — gate `canUse()` on it
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and decrement on use.
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[B] 2026-07-16 — **Lane A — wiring the rendered sail.** `const view = await createSailView(rig);
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scene.add(view);` then `view.update()` each frame after `rig.step()`. Returns a THREE.Group,
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double-sided, `castShadow` on — the shadow IS the product. three is imported lazily inside it so the
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sim core stays headless-runnable. Verified headless (100 verts / 162 tris, normals recomputed, verts
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track the sim) but **not yet eyeballed in a browser** — it wants a look once it's in main.js. The
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prep-phase picking UI is NOT landed: it needs your camera and anchor markers to raycast against. All
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the rules behind it are done and tested in `RiggingSession` (rigging.js), so it's a thin
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click-to-session adapter once M0's camera is available to me.
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[B] 2026-07-16 — selftest convention, slightly off your stub and I think worth keeping: my asserts live
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next to the code in `js/sail.selftest.js` and `js/rigging.selftest.js` as exported `[name, fn]`
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arrays, and `js/tests/b.test.js` is a 3-line adapter that feeds them to your Suite. The reason is
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that those modules ALSO run under plain `node web/world/js/sail.selftest.js` — no browser, no server,
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~7 s — which is how the cloth got proven before M0 existed. Same array both ways, so the two
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harnesses cannot drift. `contracts.js` importing three is no obstacle to that: node imports
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`three.module.js` fine.
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[E] 2026-07-16 — ✅ **A's §2 correction independently confirmed** — I hit the same wall from the asset side
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before M0 landed: `3D-STORE` is at `~/Documents/Destroyulater/3D-STORE/`, and `character_kit` / `FBX` /
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`3D=models` / `mixamo-fetch` exist nowhere on this box. My inputs were relocated, not missing, so §5-E
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is unblocked and done — Lane D's §5-D genuinely isn't. Two lanes hitting this independently is probably
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the answer to A's open question.
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[E] 2026-07-16 — **§5-E LANDED: 16 GLBs + grass atlas, all from one script.**
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`blender -b -P tools/blender/build_yard_assets.py` (flags: `--only <name>` / `--no-verify` /
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`--no-debris`). Proven rather than asserted: 17/17 outputs are byte-identical across two runs; every
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GLB is re-imported from disk and checked for dims-in-range, tri budget and node-name survival;
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`contact_sheet.png` renders each beside the 1.7 m ref capsule. Heaviest is garden_bed at 2,580 tris —
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everything far under the 15 k budget. Machine-readable manifest: `tools/blender/asset_report.json`.
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[E] 2026-07-16 — **NODE CONTRACTS — the names your code queries.** Every empty survives the export;
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verified in three.js, not just Blender.
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· trees: `trunk` (trunk+branches, rigid) + `canopy_01..03` as SEPARATE nodes — Lane A, sway the
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canopies only. `branch_anchor_01..03` empties carry `anchor_type="tree"` + `rating_hint` (thicker
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limb = higher) for `world.anchors`.
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· `house_yardside`: `fascia_anchor_01..03` carry `rating_hint=0.35` + `collateral="gutter"`, and the
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`gutter` node carries `collateral_of="fascia"` — DESIGN.md's "the fascia board is a lie" wired as
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data, so ripping it takes the gutter with it. Facade only, 9.20 × 1.05 × 2.90 m, no interior.
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· `sail_post`: exported VERTICAL, `rake_pivot` at the footing, `top_anchor` at the head. Rake is a
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player decision (DESIGN.md: rake away from the load), so it's a runtime rotation, never baked.
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**Lane A — this is exactly your 8° rake:** rotate about `rake_pivot` and the footing stays put.
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· hardware: `shackle`/`carabiner`/`turnbuckle` each keep their failure part as its own node — `pin`
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(unscrews then shears), `gate` (flutters open), `body` (thread strips) — with `failure_mode`
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stamped as a custom prop, so a break anim moves just that piece.
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· `shed_table` → `pickup_anchor` · `ladder_01` → `ladder_base`/`ladder_top` · `gate` → `hinge_axis`.
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[E] 2026-07-16 — `garden_bed` ships all 3 damage states in ONE glb as sibling nodes `plants_full` /
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`plants_tattered` / `plants_dead` (full visible, rest `hide_render`). Lane A: toggle `.visible`, don't
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reload — instant swap, no pop-in. Tuft positions are identical across states, so the bed wilts instead
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of rearranging itself.
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[E] 2026-07-16 — debris in `web/world/models/debris/`, copied verbatim (§0 copies rule) and scale-checked:
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BlueCrate_v2 0.36×0.36×0.29 · BlackTub_v2 + WhiteTub_v2 0.36×0.54×0.20 · WoodenBin_v2 0.35×0.36×0.31 m
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— all plausible real-world sizes. Plus `tramp_01_v1.glb` (2.96×2.96×0.78, `mass_hint` 45), because every
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Australian storm produces exactly one airborne trampoline. **Lane C: glob the dir, don't hardcode
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names** — §0's `*_v1.glb` rule beats §5-E's "tramp_01.glb" spelling. Grass is a texture, not geometry
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(§5-E item 9): `models/textures/grass_atlas.png`, 512², 2×2 tufts, alpha — instance billboards off it.
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[E] 2026-07-16 — ⚠️ **LANE A + LANE C, BOUNDING BOXES.** `THREE.Box3.setFromObject(obj)` expands each mesh's
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LOCAL box by the world matrix, so a node carrying a rotation reports an inflated box — and that box is
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what three frustum-culls against. Blender's `obj.bound_box` has the identical trap; it cost me an hour
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chasing phantom failures. Fixed at source: `join_group()` now bakes rotation into the vertices so every
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local box is axis-aligned and tight. Before the fix, three reported `tramp_01` as 3.29 × 1.27 m against
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a true 2.96 × 0.78. Default `Box3` is safe on these assets now — but if you ever measure geometry
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yourself, measure VERTICES, not `bound_box` corners.
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[E] 2026-07-16 — filled in `js/tests/e.test.js` (thanks for the pre-created stub — that was a good call)
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and landed `tools/assetcheck/` as a standalone version. Loads every GLB through the vendored
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GLTFLoader and asserts Y-up, scale sanity and node survival. It exists because the Blender round-trip
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**cannot** catch an axis bug: it exports Z-up→Y-up and imports Y-up→Z-up, so a broken `export_yup`
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flips back and passes green. Only a native glTF reader can prove it. Green: 16/16, with
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`branch_anchor_01` at (-0.96, 3.64, -1.46) — height correctly on +Y.
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[E] 2026-07-16 — ⚠️ **LANE A — three lines needed in selftest.html + index.html. Blocks Lane D too.**
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No page in the repo has an `<script type="importmap">`, and M0 didn't need one: it imports three by
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relative path (`../vendor/three.module.js`). But EVERY three.js addon imports the **bare specifier
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`three`**, so the first lane to touch `GLTFLoader` or `SkeletonUtils` gets
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`Failed to resolve module specifier "three"`. That's me now — and it's **Lane D the moment they load
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`player_01.glb`**, which is the whole of §5-D. The fix, in `<head>`:
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<script type="importmap">
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{ "imports": { "three": "./vendor/three.module.js",
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"three/addons/": "./vendor/addons/" } }
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</script>
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I did **not** edit your file (§6 says post the need instead, and you'd asked for selftest.html to stay
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out of the merge path). `e.test.js` imports GLTFLoader dynamically and `skip`s with that message, so
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your gate stays green rather than going red over a harness gap — and the suite lights up on its own
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the moment the importmap lands, no edit from me. Verified behind a temporary local probe first:
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**36/36 pass** (16 GLBs × scale + node survival, plus anchor world-position and the 3 damage states).
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Until then the same asserts run in `tools/assetcheck/`, which carries its own importmap.
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[E] 2026-07-16 — ❓ open q for Lane A: your yard puts house fascia anchors at y=2.6, but `house_yardside`'s
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fascia sits at 2.80 (2.90 m ridge), and the facade is 9.20 m against a 30 m north edge. Want me to
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re-cut it to your numbers, or will you read `fascia_anchor_*` off the GLB when you swap the graybox?
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Either way it's one constant for me — the script regenerates everything.
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