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render3d: ground_fill's conformance test and the generator of its golden

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tests/ground_fill_test.ludic compares gg_json (gf_hash over fixed inputs, Math.lerp cases whose order
matters, the yaw as model.vert turns by it, a hand-written density, one cover chunk with a clearing and
one solid chunk) line for line with tests/ground_fill_golden.json, and checks ground_fill draws exactly
the candidates and a solid layer's far bands a subset of band 0. The golden is written by
tests/gen/ground_fill_golden.ludic, run from the repository root; it is not committed here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-30 15:24:23 +03:00
parent e535879262
commit 54e267dfa6
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packages/ludic.render3d/tests/gen/ground_fill_golden.ludic Normal file
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# gen/ground_fill_golden.ludic - writes tests/ground_fill_golden.json from what ground_fill grows today. Run it
# from the repository root after a deliberate change to the fill, and commit the file with the change.
import "ludic.render3d/r3d.ludic"
program GroundFillGolden {
numbers float
import "../fakes/ground_golden.ludic"
import "../fakes/ground_golden_json.ludic"
import "../fakes/ground_golden_things.ludic"
# never called: naming Input links the engine's runtime, which render3d's textures stand on
function links_runtime() -> bool { return Input.key_pressed(0) }
entry (render3d_st: mut Render3dState) {
if not gg_open(render3d_st, "write") {
print("ground_fill_golden: the density could not be written")
return
}
let path = "packages/ludic.render3d/tests/ground_fill_golden.json"
let text = gg_json(render3d_st)
if Fs.write_text(path, text) { print(`ground_fill_golden: wrote {path}`) } else { print(`ground_fill_golden: could not write {path}`) }
}
}