Function: springStep()

function springStep(
   value: number, 
   velocity: number, 
   target: number, 
   stiffness: number, 
   damping: number, 
   dt: number, 
   out?: Float32Array
): Float32Array;

Defined in: math.ts:45

One step of a damped harmonic oscillator (semi-implicit Euler). out[0] = next value, out[1] = next velocity. An under-damped spring (damping ratio ≈ 0.3-0.5) is what gives a pressed button its bounce. dt is clamped to 1/30 s so a long frame can't blow the integrator up.

Parameters

Parameter	Type
value	number
velocity	number
target	number
stiffness	number
damping	number
dt	number
out	Float32Array

Returns

Float32Array