SaturationCurve

MMO\rpg\xp · 1 symbol · generated 5 Oct 2026

class

SaturationCurve

Saturation (diminishing returns). Rises quickly right from level 1 — no slow warm-up phase like Logistic — then flattens toward a ceiling. Fits skills where the first few reps already deliver most of the payoff (typing speed, basic conversational fluency, simple consistency habits).

class MMO\rpg\xp\SaturationCurve implements MMO\rpg\xp\iCurve

Namespace: MMO\rpg\xp
Implements: iCurve

XP(n) = max * (1 - e^(-n / timeConstant))

Methods1

xpForLevel($n, $params)

Curves.php:153

function xpForLevel(int $n, array $params): float

$n	int
$params	array
returns	float