void Charge(string throwButton)
{
if (Input.GetButtonDown(throwButton) &&
pickup.HasPickupable() &&
Time.time - pickup.GetPickupTime() >= throwAfterPickupTime)
{
holdButtonTime = 0.0f;
}
if (Input.GetButton(throwButton) && holdButtonTime >= 0.0f)
{
holdButtonTime += Time.deltaTime;
}
}