private void PerformMovementInput()
{
float desiredXVelocity = MovementInput.X * MaxSpeed;
float desiredYVelocity = MovementInput.Y * MaxSpeed;
var xSign = Math.Sign(desiredXVelocity - XVelocity);
XVelocity += xSign * MaxSpeed * TimeManager.SecondDifference / AccelerationTime;
if (xSign != Math.Sign(desiredXVelocity - XVelocity))
{
XVelocity = desiredXVelocity;
}
var ySign = Math.Sign(desiredYVelocity - YVelocity);
YVelocity += ySign * MaxSpeed * TimeManager.SecondDifference / AccelerationTime;
if (ySign != Math.Sign(desiredYVelocity - YVelocity))
{
YVelocity = desiredYVelocity;
}
float currentVelocityLength = Velocity.Length();
if (currentVelocityLength > MaxSpeed)
{
Velocity.Normalize();
Velocity = Velocity * MaxSpeed;
currentVelocityLength = MaxSpeed;
}
if (desiredYVelocity != 0 || desiredXVelocity != 0)
{
BubblesInstance.ThrustVector = new Microsoft.Xna.Framework.Vector3(desiredXVelocity, desiredYVelocity, 0);
}
else if (BubblesInstance.ThrustVector.Length() != 0)
{
BubblesInstance.ThrustVector = Microsoft.Xna.Framework.Vector3.Zero;
}
if (desiredXVelocity != 0 || desiredYVelocity != 0)
{
if (EngineLoop.State != SoundState.Playing)
{
EngineLoop.Play();
}
if (EngineVolume == 0)
{
this.Tween(nameof(EngineVolume), MaxEngineSfxVolume, EngineFadeTime, InterpolationType.Linear, Easing.In);
}
}
else
{
if (engineVolume > 0 && TweenerManager.Self.IsObjectReferencedByTweeners(this) == false)
{
this.Tween(nameof(EngineVolume), 0, EngineFadeTime, InterpolationType.Linear, Easing.In);
}
}
if ((desiredXVelocity == 0 && desiredYVelocity == 0) && Velocity.LengthSquared() > 0)
{
if (SubLoop.State != SoundState.Playing)
{
SubLoop.Play();
}
SubLoop.Volume = MaxEngineSfxVolume * currentVelocityLength / MaxSpeed;
}
else
{
// Calling stop or pause here seems to make the sound "pop"
//SubLoop.Stop();
}
}