How to make a piano lid lift slowly

[Cryaotic]

As of right now I have the lid opening upon interaction with an object, it opens all the way after a jerky movement which is all fine and good, though I was going for a slowly moving effect which seems quite challenging to come by.

This is what I have currently:

PHP Code: (Select All)

void pianocoverlift1(string &in asEntity){    if(GetLocalVarInt("LiftDone") != 1){    SetLocalVarFloat("LiftBuildUp", 0);    AddTimer ("LiftingPiano", 0.50, "LiftingPiano1");    AddTimer ("PianoLiftStop", 4.5, "PianoLiftStopFunc");}    else{        RemoveTimer("LiftingPiano");        }}
void LiftingPiano1(string &in asTimer){    if(GetLocalVarInt("LiftDone") != 1){    AddPropForce("pianocloset", 0, GetLocalVarFloat("LiftBuildUp"), 0, "world");    AddTimer ("LiftingPiano", 0.1, "LiftingPiano1");    AddLocalVarFloat("LiftBuildUp", 15);}}
void PianoLiftStopFunc(string &in asTimer){    if(asTimer=="PianoLiftStop"){    RemoveTimer("LiftingPiano");    RemoveTimer("LiftingPiano1");    }} 


Does anyone by chance have any idea of what I could do to make the effect more fluid and simply open as if the player's hand was slowly opening it instead of a jerky madness that is this?

Thank you kindly for any assistance!

(also I have no idea how to make the format of the code look good on the forum, it's being weird for me)