Platformer Level 6 "Cavern Depths" — the dirt biome (asset expansion Phase B, slice 1)#58
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… B, slice 1) A sixth level on the previously-unused terrain_dirt_* tile set and the background_solid_dirt backdrop, completing start-to-finish: - dirt block tops + block_center mass under the mound, carved block_top_left/right cliff corners on the goal steps, ramp_long_a/b dirt ramps, and a one-way cloud_left/middle/right dirt platform - a wall-jump shaft of floating dirt columns (slot coin; the L3 ice-shaft recipe in dirt), a spike gap to leap, a dirt-ramp mound, a high one-way-cloud bonus route, two slimes + a snail, a bonus gem - win moves to gLevel >= 6 (L5's flag now advances); pfBuildBackdrop gains the dirt case; both pfStartGame switches wire case 6; help/splash/win strings + header walkthrough updated to six levels Example-side only - no Kit change, no harness bump. check-livecodescript passes; audit-platformer auto-discovers and clears L6 (9 coins, 3 walkers, 0 findings). Every referenced frame verified against the atlas. Statically verified; needs an OXT pass (header verify item 20). Block slime + conveyor follow in slices 2-3. Also fixes two asset-expansion-plan inaccuracies found during review: the tiles hud_* strip is 30 frames (not 33), and the conveyor tile is a single frame (not an animated 2-frame pair). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X92APxUJUMue3bAzXiX9V2
…erywhere Addresses the OXT pass on Level 6 (no background, lackluster, misaligned spikes): - BACKGROUND: Kenney's flat "background_solid_dirt" frame read as blank. L6 now builds a dark cave backdrop (pfBuildCaveBackdrop - two card graphics: deep earth + a warmer play band), guaranteed visible. No parallax drift (the depth comes from the scrolling cave structure). - ATMOSPHERE (was "lackluster"): flickering wall TORCHES (torch_on_a/b, new pfMakeTorch + a "torch" anim def), hanging CHAINS + STALACTITES (terrain_dirt_vertical_bottom), carved dirt CLIFF LIPS on the spike pit (block_top_right/left), and cave DECOR (a rock, cave mushrooms, a bush), all placed clear of every beat. - SPIKES (misaligned): the spike art's pixels are the bottom 34px of the 64px cell, so placing the tile at y576 sank the tips to y606 - 30px below the pit edge, reading as floating/misaligned. pfMakeSpikes now places at y546 so the tips meet y576 (the ground line) and the spikes bristle AT the edge. Affects every spike pit (L1/L3/L5/L6); the hurt sensor and pit geometry are unchanged. Example-side only (no Kit change, no harness bump). check-livecodescript passes; audit-platformer clears all 6 levels (0 findings); new frame names verified against the atlas. Statically verified; needs an OXT re-pass (header item 20). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X92APxUJUMue3bAzXiX9V2
The reported "misaligned spikes" was a horizontal offset, not the vertical seating I changed last round. pfTile treats its (x,y) as the tile TOP-LEFT (it centres at x+32, like all the ground tiling), but pfMakeSpikes tiled the spike row over pL+32 .. pR-32 - shifting every spike 32px RIGHT: a bare 32px gap at the left pit edge and the last spike overhanging onto the ground on the right. The row now tiles pL .. pR-64 (top-lefts), landing flush from pL to pR. Verified flush in all five pits (L1/L3/L5 x2/L6): each tiles to an exact pL..pR span. Sensor + pit geometry unchanged; the y546 vertical seating (tips at the ground line) stays. check-livecodescript passes; audit clears all 6 levels. Needs an OXT re-pass on the spike pits. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X92APxUJUMue3bAzXiX9V2
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What this is
The first implementation slice of asset-expansion Phase B (
docs/asset-expansion-plan.md) — the dirt biome and a sixth platformer level, CAVERN DEPTHS, built on theterrain_dirt_*tile set and thebackground_solid_dirtbackdrop that the demo loaded but never used.This lands after a full audit of the project (the four layers, the static gates, the optimization playbook, and a frame-by-frame cross-check of the asset plan against the atlases).
Slice 1 — the dirt biome + a Level 6 that completes start-to-finish
block_centermass under the mound, carvedblock_top_left/rightcliff corners on the goal steps,ramp_long_a/bdirt ramps, and a one-waycloud_left/middle/rightdirt platform — over the unusedbackground_solid_dirtparallax backdrop.pfBuildBackdropgains the dirt case; bothpfStartGamedispatch switches wirecase 6; the win gate moves togLevel >= 6(L5's flag now advances); help/splash/win strings and the header walkthrough updated to six levels.Reuses the existing slime/snail cast and proven makers — example-side only, no Kit change, no harness bump. Phase B's headline mechanics (the block slime and the conveyor belt) follow in slices 2–3.
Verification
tools/check-livecodescript.py— PASS (no smart quotes, balanced handlers/control structures, embedded Kit in sync).tools/audit-platformer.py— auto-discovers and clears L6 (bounds 64..3040, 9 coins, 3 walkers, 0 findings across 6 levels). No audit changes were needed because the level reuses the whitelistedpf_ground/pf_platslab names.terrain_dirt_*,background_solid_dirt, plus the reused spikes/flag/coin/gem/slime/snail frames).Statically verified — needs an OXT pass (header verify item 20). Things to confirm in OXT: dirt art reads with no missing-frame fallbacks; the wall-jump slot coin is reachable by wall-jump and a straight double-jump (never trick-only); the bonus gem above the shaft is reachable (lower it if not); the dirt mound walks up/across/down with no fall-through; the cloud drops through on DOWN+JUMP; the win screen says ALL SIX LEVELS CLEAR.
Also in this PR
Two small
asset-expansion-plan.mdaccuracy fixes found during the review: thetileshud_*strip is 30 frames (not 33 — the 33-frame sheet is the separatehud_sheet.xml), and theconveyortile is a single frame (not an animated 2-frame pair) — which matters for the slice-3 conveyor.🤖 Generated with Claude Code
https://claude.ai/code/session_01X92APxUJUMue3bAzXiX9V2
Generated by Claude Code