Let the spring be related to other layers properties about duik HOT 1 CLOSED

amp =thisComp.layer(1).effect("AMPLITUDE")("Slider");
freq =thisComp.layer(1).effect("FREQ")("Slider");
decay =thisComp.layer(1).effect("DECAY")("Slider");
n = 0;
compFather=thisComp.layer(1).name;// Dynamic Parent Comp (so I could change the name of the layer and therefore the referenced comp. Perhaps is obsolete now with some new DUIK implementations);
p=comp(compFather).layer("CENTER").effect("ROTATION")("Slider");

if (p.numKeys > 0){
    n =p.nearestKey(time).index;
   if (p.key(n).time > time){
   n--;
}}

if (n> 1){
t = time - p.key(n).time;
div=(p.key(n).time-p.key(n-1).time)/3.2; // Makes an average out of two measures so it springs even if the keys are Eased
durA=p.key(n-1).time+div;
durB=p.key(n).time-div;
v = (p.velocityAtTime(durA)+p.velocityAtTime(durB))/2;
x=value[0] + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
}else{
x=value[0];
}
[x,value[1]];