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ProductBin: a binned product names its maker's line and a floor; the mint draws above that floor

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FactionProductData slot 7 Bin (schema id unchanged, additive as slot 6). Mint derives a bin's
distributions from its line on every lot, truncated by NextGaussianAbove (64 tries, then the cutoff).

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-10-18 17:58:51 +02:00
commit 49853d3166
4 changed files with 230 additions and 11 deletions
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15
Assets/Scripts/ServerShared/Extensions.cs
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@ -180,6 +180,21 @@ public static class Extensions
return mean + deviation * sqrt(-2 * log(u1)) * cos(2 * PI * u2);
}
// NextGaussian truncated below mean + floorDeviations * deviation: draws until one clears that cutoff, at most 64 times,
// then returns the cutoff itself. Exact for any reachable floor and bounded and deterministic per seed for an unreachable
// one. A binned product's fills and assembly (ProductBin). Callers clamp, as with NextGaussian.
public static float NextGaussianAbove(this ref Random random, float mean, float deviation, float floorDeviations)
{
var cutoff = mean + floorDeviations * deviation;
for (var tries = 0; tries < 64; tries++)
{
var draw = random.NextGaussian(mean, deviation);
if (draw >= cutoff) return draw;
}
return cutoff;
}
public static float NextUnbounded(this ref Random random) => 1 / (1 - random.NextFloat()) - 1;
public static float NextUnbounded(this ref Random random, float bias, float power, float ceiling) => 1 / (1 - pow(min(random.NextFloat(), ceiling), 1 - pow(clamp(bias,0,.99f), 1 / power))) - 1;