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Square wall corners hold grains, liquids and gas (t39)

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Powder, liquid and gas no longer step diagonally between two solid
cells; flyers and diagonal tube intakes obey the same corner. World
generation settles with the rule off, so seeds make the same worlds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-26 18:27:10 -04:00
co-authored by Claude Opus 5.5
parent 0cf615eb3d
commit 9bc5a6c3af
8 changed files with 131 additions and 14 deletions
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src/sim/worldgen.js
+2 -2
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@@ -245,7 +245,7 @@ function* worldSteps(seedIn, w, h) {
yield [0.75, 'Settling loose ground'];
// settle loose material at the water and sorting speeds the seeds were made with
awake.fill(3);
const lstep = LSTEP, lfilm = LFILM, sortp = SORTP; LSTEP = LFILM = 1; SORTP = 0.003;
const lstep = LSTEP, lfilm = LFILM, sortp = SORTP, cornerSeal = CORNER_SEAL; LSTEP = LFILM = 1; SORTP = 0.003; CORNER_SEAL = false;
for (let k = 0; k < 260; k++) {
tick++; tickStamp = (tickStamp % 255) + 1;
simMove();
@@ -253,7 +253,7 @@ function* worldSteps(seedIn, w, h) {
if (!any) break;
if ((k & 31) === 0) yield [0.75 + 0.24 * k / 260, 'Settling loose ground'];
}
LSTEP = lstep; LFILM = lfilm; SORTP = sortp;
LSTEP = lstep; LFILM = lfilm; SORTP = sortp; CORNER_SEAL = cornerSeal;
yield [0.99, 'Finishing'];
// re-ambient after settling, then start clean
for (let i = 0; i < N; i++) { const m = mat[i]; if (m !== MAGMA) temp[i] = AMB[(i / w) | 0]; life[i] = PH[m] === PH_LIQUID && FRZ[m] ? 255 : 0; }