3.4.3 DistanceR: keep draws apart

Parent: 3.4 Framework.Number · Guide map

DistanceR samples a value at least distance away from its previous result. The first draw is unrestricted within the range.

using RandEXom.Framework.Number;

var spaced = new DistanceR(seed: 42, distance: 3);
int first = spaced.Next(0, 10);
int second = spaced.Next(0, 10); // |second - first| >= 3

distance must be nonnegative, and SetDistance() changes it for future calls. A distance of zero imposes no spacing. If no value in [min, max) can satisfy the requested gap, Next() throws InvalidOperationException. This is not a constraint against all earlier values—only the immediately preceding one. Next has both int and long overloads.

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