private void RotateAroundTransform(DragData drag)
{
// In order to add two quaternion rotations correctly you multiply them.
// To subtract you need to multiply by the inverse.
Quaternion rotationDelta = (
Snap.LocalRotationOfWorldRotation(mesh.transform, drag.transform.rotation) *
Quaternion.Inverse(Snap.LocalRotationOfWorldRotation(mesh.transform, drag.startTransformRotation))
);
Quaternion snappedRotationDelta = Snap.RotationDelta(rotationDelta);
transform.position = Snap.RotateAroundPivot(mesh.transform, transform.position, drag.transform.position, snappedRotationDelta);
}
public void UpdatePositions(Transform controller, int controllerIndex)
{
Vector3 controllerPosition = Settings.SnapEnabled() ? Snap.WorldPosition(mesh.transform, controller.position) : controller.position;
Quaternion snappedControllerRotation = Snap.RotationDelta(controller.rotation);
Vector3 up = CalculateNormal(center, controllerPosition, controllerPosition + snappedControllerRotation * Vector3.right);
int numberOfSides = NumSidesByTwoVectors(controller.up, up);
if (numberOfSides != lastNumberOfSides)
{
DestroyAndRecreateVertices(numberOfSides, controllerPosition, up);
}
else
{
MoveVertices(numberOfSides, controllerPosition, up);
}
lastNumberOfSides = numberOfSides;
}
