[arudaev]

What and why

Alexander's playtest of the underground (#234): walking around the cellar didn't make sense. This PR makes it match its painting and shows what can be used.

The door, lit, with its key	Behind the pillar	A ladder's key

The cellar, measured from its painting (hidden_garden_proof.py MEASURED):

• Upper floor: one floor behind every pillar, running on into the drain's upper ledge. There was a gap under a pillar, which is where you fell through.
• Ladders: both run from the ledge to the floor. The left one used to climb into the ceiling girder, which was the floating on a wall. The right one was 80 px beside its paint.
• Door: the stairs door is now on the painted wooden door. It used to sit on a ladder and showed as a purple box in debug mode. The graph still pairs it with the shed door, by id.
• Notes: the two notes lie on crates instead of on the lower door and out over the forest view.
• Drain: its second painted ladder can be climbed.

Pillars in front:

• New layer: 06-pillars sits at z 6, so it's drawn over the hero like 06-near, but it doesn't sway.
• Cellar: a measured mask takes in its five steel columns.

In the game:

• Walls at row ends: wherever a chunk has no neighbour in its row, collision.ts edgeWalls closes it. That stops you walking out of the map.
• The guide stays on his row: the prologue guide now gets only his own row's walk lines (guideLines). He used to follow you down and walk in the cellar's air, which was the second Dexter. The cellar's own sighting stays: he waves from an arch and is gone when you come close.
• What can be used shows itself:
  • near a door, the door is lit warm and shows the up key, dim until you stand in it;
  • at a ladder's foot or top, you see the key that climbs it;
  • the keycap is bigger;
  • all of it stays wordless.
• Rooms move (stage/ambient.ts):
  • the lanterns flicker, with dust drifting in their light;
  • the pond above drips through the ceiling onto the floor and splashes;
  • both come from lamp and drip markers in the zone script, in all three rooms.

Issue

Closes #234 once Alexander has checked it on this PR's preview.

Verification

• pytest scripts: 167 passed. npm test: 364 passed, including new tests for the edge walls, the door and ladder hints, the guide's row and the ambient model. tsc is clean.
• hidden_garden_proof.py: every surface reachable and leavable. split_layers.py --check rebuilds the cellar exactly with the new layer. collision_check.py --surfaces: 0 problems. check_docs.py is clean.
• Checked in the dev build (captures above):
  • the hero crosses the old gap and stays on the floor;
  • he's hidden behind the pillar;
  • the door lights up and the ladder shows its key;
  • the lanterns glow;
  • the guide stays at y 471, on the garden row.

[vercel]

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Project	Deployment	Actions	Updated
wincs	Ready	Preview	Oct 25, 2026 4:20pm UTC

[arudaev]

Second playtest (same preview URL, redeployed):

• Floating over the cellar ledge: the ledge steps down about 15 px under the middle arch, and the floor now follows it.
• Hovering at the drain pillar: that 'floor' was the top of the back wall under the water ceiling. It's gone, and its ladders now only join the floors they reach.
• Climbing down through the ledge: you now go behind the stone's face.
• Mirrored logo: the climb is never mirrored, so the poncho reads THD. The ladder clip already alternates the arms on its own.
• Dexter in the reflection hall: he now waits on the hall floor where you see him from the way in, beckoning toward the tear. The 'dexter wait' debug label that followed you underground was the overlay drawing him at your height; it now draws him where he is, on the garden row.

[arudaev]

Alexander checked the preview (25 Oct): the underground plays right. Ready to merge on his word; merging closes #234.