[Vatsal2005]

What and why

Yellow one-way decks catch falling feet and let rising jumps pass through. Down + Jump drops through the support. Up/down enters authored climb zones at 70px/s; release holds position, sideways input or Jump leaves, and Player.canAttack is false while attached. Ladder ends align with nearby authored deck heights, including the small annotation offsets. Reserved ledges remain inactive.

Issue

Closes #30

Stack

• [16/16] feat: block frontal hits with the chair guard #149 [16/16] feat: block frontal hits with the chair guard
• [15/16] feat: add up attacks and pogo slams #146 [15/16] feat: add up attacks and pogo slams
• [14/16] feat: patrol and charge with autonomous rovers #145 [14/16] feat: patrol and charge with autonomous rovers
• [13/16] feat: save and refill at coffee machines #144 [13/16] feat: save and refill at coffee machines
• [12/16] feat: add alternating chair sweeps and contact hits #137 [12/16] feat: add alternating chair sweeps and contact hits
• [11/16] feat: add health damage and checkpoint respawn #135 [11/16] feat: add health damage and checkpoint respawn
• [10/16] feat: switch locomotion through authored bridge clips #132 [10/16] feat: switch locomotion through authored bridge clips
• [9/16] feat: follow the hero with directional camera lead #131 [9/16] feat: follow the hero with directional camera lead
• [8/16] feat: add one-way decks and ladder climbing #126 [8/16] feat: add one-way decks and ladder climbing ← this PR
• [7/16] feat: follow ground slopes and slide downhill #125 [7/16] feat: follow ground slopes and slide downhill
• [6/16] feat: add variable jumps and landing poses #123 [6/16] feat: add variable jumps and landing poses
• [5/16] feat: add weighted walking and running #122 [5/16] feat: add weighted walking and running
• [4/16] feat: load authored collision with a debug overlay #120 [4/16] feat: load authored collision with a debug overlay
• [3/16] feat: load exported stages and sprite atlases #116 [3/16] feat: load exported stages and sprite atlases
• [2/16] ci: check the game with node 22 on pull requests #111 [2/16] ci: check the game with node 22 on pull requests
• [1/4] chore(shared): scaffold the phaser game runtime #94 [1/16] chore(shared): scaffold the phaser game runtime — merged

Base: feature/29-slopes. Human merges bottom up; retarget the next PR to main and merge origin/main into every open branch, never rebase.

Acceptance criteria

• Stand on yellow lines, jump up through, drop with Down + Jump
• Slow climbing in blue zones; hold on release; attacking disabled through the controller's canAttack contract
• No ledge pull-up

Verification

• Node 22: npm run typecheck, npm test (77 tests), npm run build; includes main integration at e8577ab
• py -3.13 scripts/check_docs.py
• git diff --cached --check
• Tests cover rising/falling one-way contacts, drop-through onto solid ground, climb/hold/exit, input ordering, reserved ledges, and every real Creek climb zone in both directions
• Browser: first ladder reaches y=363 deck, tall ladder holds when released and reaches y=126; Down + Jump falls to y=508 and selects hard landing; no console errors
• Browser traversal of every ladder/deck: continue with camera follow [M1-S5] Camera follows with parallax layers #32
• Physical gamepad and Vercel preview: Vatsal2005 requires project access on Vercel

Screenshots

Shown in chat, saved in ignored tmp/verification/30-ladder-top.png, 30-climb.png and 30-drop.png. The hard-landing readout after the tall drop also exercises #28's landing selection on the authored route.

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Project	Deployment	Actions	Updated
wincs	Error		Oct 24, 2026 12:30am UTC

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