/// <summary>
/// Unground the player
/// </summary>
/// <param name="velocity">The velocity at which the player has been ungrounded</param>
public void Unground(double velocity)
{
if (Gravity == null)
{
Gravity = new GravityArgs(Bottom, velocity);
}
}
/// <summary>
/// Ground the player
/// </summary>
public void Ground()
{
Gravity = null;
}