Blockhaven: block models in Java's element format, so pack textures map like Java

[k1519035]

Block shapes whose texture is a sprite sheet rather than one picture per face were drawn with the wrong parts of their textures. With the bundled pack, lanterns and end rods were nearly invisible, bamboo was a wide box, and cacti, torches and the rest only approximated Java. These blocks now use Java 1.20.1's own block model geometry and per-face UVs. Any Java resource pack's textures land exactly where they do in Java.

How

• js/data/models.js (new): Java's block-model element format in a compact form.
  • Each element is a box with its own UV rectangle per face.
  • Elements can have a face rotation, a cullface, a turn of 22.5° or 45° about one axis (with Java's rescale), and shade: false.
• model() in the mesher: draws these elements.
  • UVs map onto each face as Java's FaceBakery does, and face rotations turn the texture as Java's do.
  • Lighting and culling work as for the existing boxes.
  • Each block's state turns the model as its Java blockstate does. The rotations come from the existing Java state mapping in javablocks.js.

Blocks changed

Block	Now (Java model)	Before
Torch, soul and redstone torches	template_torch: the texture on two crossed 2-px slabs, flame UV on top	box with the top 1 px off
Wall torches	template_torch_wall, leaning 22.5°	sheared box
Cactus	full top/bottom, sides inset 1 px with the whole texture	14 px top
Lantern, hanging lantern	the lantern sheet's body, cap and handles	whole-texture faces (mostly transparent)
End rod	rod sheet	invisible
Bamboo	one of Java's 4 stalk models, by position	3×3 box
Campfire	4 logs with lit inner faces, rescaled fire planes	2 oak logs
Glass pane, iron bars	Java's multipart arms, caps and posts, pane edges from glass_pane_top	—
Ladder, doors (incl. open models), trapdoors (top/bottom/open), anvil, end portal frame (+eye)	Java models	—
Fire	floor planes plus 4 side planes, showing the animated fire texture (was a shader effect)	—
Pumpkin/melon stems	Java's diagonal stem growing 2 px per age, tinted green→yellow by age; packs' grey stem textures are now tinted, and every age uses the plain stem	wheat-style, full height, untinted grey with packs (age 7 showed the bent attached_ stem)

• New texture layers: campfire_log, campfire_log_lit and glass_pane_top.
• Fallback textures: the procedural fallbacks for lantern, end rod and bamboo are redrawn in Java's sheet layouts, so they map the same way when no pack is loaded.

Not in this PR: block entities that use entity textures (chests, beds, skulls) come with the entity-texture work later.

Build fix

tools/build.mjs injects the bundled worker into the packed page with String.replace. A replacement string treats $& and similar sequences as patterns. The minified worker now has a variable named $ masked with $&1, which the build replaced with the matched URL, so the packed worker failed to load. The injections now use replacer functions, so no bundled code can trip this again.

Testing

• tests/models.test.mjs (new) checks:
  • Every face has a texture and a UV inside the texture.
  • Torch geometry and flame UV.
  • The wall torch leans away from its wall.
  • The lantern uses the sheet's body rectangle.
  • The cactus inset.
  • Stem heights.
• node --test: 120 pass.
• Packed build: npm run build, surface-check and browser-check pass locally, using Edge.
• By eye: checked in a headless Edge test scene with the bundled pack, block by block: torches, wall torch, cactus, lanterns (standing and hanging), end rod, bamboo, campfire, panes and bars (lines, corners, lone), doors (closed and open), trapdoors, ladder, anvil, end portal frame with eye, fire, soul fire and stems at every age.

🤖 Generated with Claude Code

https://claude.ai/code/session_01R5yMmGQVzFD1XVDyZe42KG

[vercel]

@k1519035 is attempting to deploy a commit to the Marin Team on Vercel.

A member of the Team first needs to authorize it.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.