Random

Random related methods

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srl.GaussRand

function TSRL.GaussRand(mean, dev: Double): Double;

Generates a random gaussian/normal number.

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srl.TruncatedGauss

function TSRL.TruncatedGauss(Left:Double=0; Right:Double=1): Double;

Generates a random gaussian/normal number which is truncated and mapped within then given range [left..right] weighted towards left

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srl.SkewedRand

function TSRL.SkewedRand(Mode, Lo, Hi: Double): Double; static;

Random skewed distribution generation. Mode is a number between Lo and Hi which is where the most of the generated numbers will land.

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srl.NormalRange

function TSRL.NormalRange(min, max: Int64): Int64;

Generates a random integer in the given range, weighted towards the mean.

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srl.NormalRange

function TSRL.NormalRange(min, max: Double): Double;

Generates a random float in the given range, weighted towards the mean.

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srl.RandomPoint

function TSRL.RandomPoint(mean: TPoint; maxRad: Int32): TPoint;

Generates a random TPoint which weights around mean, with a max distance from mean defined by maxRad.

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srl.RandomPoint (overload)

function TSRL.RandomPoint(bounds:TBox): TPoint; overload;

Generates a random TPoint in the bounds of the given box bounds, the point weights towards the middle of the box.

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srl.RandomPoint (overload)

function TSRL.RandomPoint(rect: TRectangle): TPoint; overload;

Generates a random TPoint in the given rectangle rect, The point weights towards the middle of the rectangle.

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srl.RandonPointEx

function TSRL.RandonPointEx(From:TPoint; B: TBox; Force:Double=0.35): TPoint; constref;

Generates a random point within the bounds of the given box B, the point generated is skewed towards towards the From-point. The last parameter Force defines how much the generated point is to be skewed towards or away from From - Expects value in the range 0..2

• Force = 0: Result weighs heavily towrads the edge closest to From
• Force = 1: Result in the middle of box is most common
• Force = 2: Result weighs heavily towrads the edge furthest away from From

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Wait (overload)

procedure Wait(min, max:Double; weight:EWaitDir=wdMean); overload;

Waits … Weighted towards the mean of min and max

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WaitEx

procedure WaitEx(mean, dev:Double);

Waits … Regular gauss random

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srl.rowp

function TSRL.rowp(From: TPoint; Rect: TRectangle; Force: Double=-0.9; Smoothness: Double=PI/12): TPoint;
function TSRL.rowp(From: TPoint; Box: TBox; Force: Double=-0.9; Smoothness: Double=PI/12): TPoint;

rowp, short for Random Olly Weighted Point. Generates a random point based on a rough formula that Olly came up with for weighting points towards “From” point. Final implementation and math done by slacky.

Force ranges from -1 (close to) to 1 (away from), where 0 is mean, but with a bit of a skewiness…

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