Disabling Gas when Gas Button releases[SOLVED]

Questions & Answers
1

Hi i have problem with stopping my car when i release the Gas button…not only Gas i don’t even know how it works.

thank you

#pragma strict

var wheelFL : WheelCollider;
var wheelFR : WheelCollider;
var wheelRL : WheelCollider;
var wheelRR : WheelCollider;
var wheelFLTrans : Transform;
var wheelFRTrans : Transform;
var wheelRLTrans : Transform;
var wheelRRTrans : Transform;
var maxtorque : float = 50;
var highestSpeed : float = 50;
var lowSpeedSteerAngel : float = 10;
var highSpeedSteerAngel : float = 1;


function Start () {

     rigidbody.centerOfMass.y = -0.9;

}

function FixedUpdate () {

var speedFactor = rigidbody.velocity.magnitude/highestSpeed;
var currentSteerAngel = Mathf.Lerp(lowSpeedSteerAngel,highSpeedSteerAngel,speedFactor);

}
function OnGUI (){

     if(GUI.Button(Rect(150, 180, 80, 20),"Gas")){
     wheelRL.motorTorque = maxtorque;
     wheelRR.motorTorque = maxtorque;

// Somthing should be done here ^^^

     //if(GUI.Button(Rect(20, 180, 80, 20),"Left")){
     //wheelFL.steerAngle = ;
     //wheelFR.steerAngle = ;
 }
     //if(GUI.Button(Rect(80, 180, 80, 20),"Right")){
     //wheelFR.steerAngle = ;
     //wheelFL.steerAngle = ;

function Update () {
     
     wheelFLTrans.Rotate(wheelFL.rpm/60*360*Time.deltaTime,0,0);
     wheelFRTrans.Rotate(wheelFR.rpm/60*360*Time.deltaTime,0,0);
     wheelRLTrans.Rotate(wheelRL.rpm/60*360*Time.deltaTime,0,0);
     wheelRRTrans.Rotate(wheelRR.rpm/60*360*Time.deltaTime,0,0);
     
     wheelFLTrans.localEulerAngles.y = wheelFL.steerAngle - wheelFLTrans.localEulerAngles.z;
     wheelFRTrans.localEulerAngles.y = wheelFR.steerAngle - wheelFRTrans.localEulerAngles.z;
     
     
}
2

Make it so that when the key isn’t pressed, it stops adding velocity to the car, and make sure it is being affected by gravity, so that it will slowly decelerate.