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Lakes fill only to their lower rim and keep clear of spawn and the dock (t96)

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The lake lip was Math.min(surfY), the highest ground (y grows downward), so water was poured
above the lower rim and, once levelled, ran up to the trade dock on 4 of 12 seeds. The lip is
now the lower rim edge minus one, and each lake stays 80 grains from spawn. Seed hashes and
the shallow-ore hash re-baselined (changes only under lake basins); golden fixtures also
freeze surfY/dirtY/AMB from the previous generator.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-29 19:45:51 -04:00
co-authored by Claude Opus 5.5
parent ae78756fa2
commit 80668a4baf
10 changed files with 41 additions and 13 deletions
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test/t_world.js
+2 -1
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@@ -185,7 +185,8 @@ oreNames.forEach((name, j) => {
});
const totalOre = oreBalance.counts.reduce((a, b) => a + b, 0);
check('total ore is about 4 to 4.5 times the original', totalOre >= 162519 * 4 && totalOre <= 162519 * 4.5, totalOre);
check('shallow ore matches the original generator', oreBalance.shallowHash === 706875613, oreBalance.shallowHash);
// t96 round 3: lake basins moved, so ore under them changed (414 cells, all under the two lakes).
check('shallow ore matches the original generator', oreBalance.shallowHash === 607138519, oreBalance.shallowHash);
run('generateWorld(99, 4096, 1536, null)');
const marks = run('(()=>{let lakes=0,peaks=0,inLake=false;for(let x=1;x<W-1;x++){const l=mat[(surfY[x]-1)*W+x]===WATER;if(l&&!inLake)lakes++;inLake=l;if(surfY[x]<surfBase-100&&surfY[x]<=surfY[x-1]&&surfY[x]<surfY[x+1])peaks++;}return [lakes,peaks]})()');
check('a large world has several lakes and mountains across it', marks[0] >= 2 && marks[1] >= 2, marks);