// Force methods.
public virtual void Throttle()
{
float gear = (gears.GetGear(Math.Abs(exSpeed.Clamp(velocity.Length()))) / gears.GearCount) * 100.0f;
float throttle = gear * exAcc.Metric;
Vector2 dir = new Vector2(this.direction.X, this.direction.Y);
dir.Normalize();
ApplyForce(dir * exAcc.Value);
exAcc.SetValue(exAcc.Value + (exAcc.Metric + throttle));
}
