/// <summary>
/// Moves toMove, retaining the local position, scale, rotation.
///
/// This is in contrast to simply modifying Transform.parent, which modifies
/// the local transformation state to retain the same world-space result.
/// </summary>
/// <param name="toMove">The Transform to reparent.</param>
/// <param name="newParent">The new parent Transform.</param>
public static void MoveToParent(Transform toMove, Transform newParent)
{
var state = new TransformState(toMove);
toMove.parent = newParent;
state.Revert();
}
/// <summary>
/// Updates references to Transform objects that we're interested in.
/// </summary>
private void UpdateTransformReferences()
{
Transform newParent;
if (relativeTrn == null)
{
if (FlightGlobals.ActiveVessel == null)
{
newParent = null;
}
else
{
newParent = FlightGlobals.ActiveVessel.transform;
}
}
else
{
newParent = relativeTrn;
}
TransformState.MoveToParent(destructionProxy.transform, newParent);
TransformState.ResetTransformToIdentity(destructionProxy.transform);
TransformState.ResetTransformToIdentity(transform);
// For FlightCamera, the second transform is that for the FlightCamera itself.
secondTrn = new TransformState(FlightCamera.fetch.transform);
// ... and the transform parent is the "main camera pivot".
firstTrn = new TransformState(secondTrn.Transform.parent);
}
private void ReplaceProxy()
{
if (destructionProxy != null)
{
destructionProxy.onDestroy -= this.OnProxyDestroyed;
}
GameObject obj = new GameObject("KerbCam.CameraController DestructionProxy");
destructionProxy = obj.AddComponent <DestructionProxy>();
destructionProxy.onDestroy += OnProxyDestroyed;
TransformState.MoveToParent(transform, destructionProxy.transform);
}
private void ReacquireFlightCamera()
{
if (!isControlling)
{
return;
}
FlightCamera.fetch.DeactivateUpdate();
UpdateTransformReferences();
// Store the first and second transform states, for when we release the camera.
firstTrn.Store();
secondTrn.Store();
// The CameraController becomes the parent transform for the camera transforms.
TransformState.MoveToParent(firstTrn.Transform, transform);
}