private void Update()
{
float steerAmount = Input.GetAxis("Horizontal") * steeringAngle;
float powerAmount = Input.GetAxis("Vertical") * acceleration;
if (powerAmount < 0.0f)
{
// brake
controller.Brake(powerAmount * brakeFactor);
}
else if (powerAmount > 0.0f)
{
// accelerate
controller.Power(powerAmount);
}
else
{
controller.Coast();
}
controller.Steer(steerAmount);
}