/// <summary>
/// Generates a new HandGrabPointData that mirrors the provided one. Left hand becomes right hand and vice-versa.
/// The mirror axis is defined by the surface of the snap point, if any, if none a best-guess is provided
/// but note that it can then moved manually in the editor.
/// </summary>
/// <param name="originalPoint">The point to mirror</param>
/// <param name="originalPoint">The target HandGrabPoint to set as mirrored of the originalPoint</param>
public static void MirrorHandGrabPoint(HandGrabPoint originalPoint, HandGrabPoint mirrorPoint)
{
HandPose handPose = originalPoint.HandPose;
Handedness oppositeHandedness = handPose.Handedness == Handedness.Left ? Handedness.Right : Handedness.Left;
HandGrabPointData mirrorData = originalPoint.SaveData();
mirrorData.handPose.Handedness = oppositeHandedness;
if (originalPoint.SnapSurface != null)
{
mirrorData.gripPose = originalPoint.SnapSurface.MirrorPose(mirrorData.gripPose);
}
else
{
mirrorData.gripPose = mirrorData.gripPose.MirrorPoseRotation(Vector3.forward, Vector3.up);
Vector3 translation = Vector3.Project(mirrorData.gripPose.position, Vector3.right);
mirrorData.gripPose.position = mirrorData.gripPose.position - 2f * translation;
}
mirrorPoint.LoadData(mirrorData, originalPoint.RelativeTo);
if (originalPoint.SnapSurface != null)
{
SnapSurfaces.ISnapSurface mirroredSurface = originalPoint.SnapSurface.CreateMirroredSurface(mirrorPoint.gameObject);
mirrorPoint.InjectOptionalSurface(mirroredSurface);
}
}
public static void CloneHandGrabPoint(HandGrabPoint originalPoint, HandGrabPoint targetPoint)
{
HandGrabPointData mirrorData = originalPoint.SaveData();
targetPoint.LoadData(mirrorData, originalPoint.RelativeTo);
if (originalPoint.SnapSurface != null)
{
SnapSurfaces.ISnapSurface mirroredSurface = originalPoint.SnapSurface.CreateDuplicatedSurface(targetPoint.gameObject);
targetPoint.InjectOptionalSurface(mirroredSurface);
}
}