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Buildings cast no shadows: daylight passes player-built pieces (t37)

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The lighting finds its own roof per column, skipping walls, belts, tubes, machines and molds,
and lets light through them like air, in both looks. Natural rock still shades; the
simulation's roof (steam condensing under a built roof) is unchanged. New test/t_light.js.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-25 16:42:07 -04:00
co-authored by Claude Opus 5.5
parent 5ce44f842e
commit 20d0627d75
5 changed files with 94 additions and 5 deletions
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docs/PROJECT_MAP.md
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@@ -352,9 +352,9 @@ Drawing (src/render/): browser only. This file: the renderer state R, colour tab
- functions: glowIndex, thermIdx, pipeCellColor, pipeBodyCell, thinPipeColor, beltLike, buildSky, initRender, resizeRender, viewCells, updateCamera, snapCamera, screenToWorld, worldToScreenPx, renderMonoFont
- variables: R, GLOW_W, GLOW_R, GLOW_G, GLOW_B, THERM, PC, TREE_R, TREE_G, TREE_B, BG, SKY_R, SKY_G, SKY_B
### src/render/light.js (79 lines)
### src/render/light.js (95 lines)
Propagated coloured light from glowing and burning cells.
- functions: computeLight
- functions: builtForLight, computeLight
### src/render/world.js (308 lines)
Scale colour without changing the smooth-look class.
@@ -509,6 +509,7 @@ The frame loop and boot.
- `test/t_econ.js`: Economy: the dock (instant sale), orders, prices, the market dip, money for machines, alloys.
- `test/t_fog.js`: Fog: surface, sight, range, saves and simulation independence.
- `test/t_furnace_repeat.js`: The starter furnaces keep working when fired again and again without cleaning, however the charge goes in: mixed, ore first with coal on top, or blown in through the vent. Each case plays furnace_play.js, which builds the design and fires it like a player.
- `test/t_light.js`: Run the renderer's lighting against real simulation data, with only canvas storage stubbed.
- `test/t_load.js`: Reload wakes nearby areas first, without losing distant water, fire or saved state.
- `test/t_molds.js`: Molds and furnaces stay usable: ingots drop below and keep their stubs, plugs over molds are cleared, spoiled castings can be knocked out, grains never drop through a grate by teleporting, and slag lets the fire breathe.
- `test/t_nozzle.js`: Blowing aims within the nozzle's reach, with room for the brush and settling.