public static void Translate(this TransformSelection selection, Vector3 translation)
{
for (var t = 0; t < selection.Transforms.Length; t++)
{
selection.Transforms[t].position = GridUtility.CleanPosition(selection.BackupPositions[t] + translation);
}
}
public static void Rotate(this TransformSelection selection, Vector3 rotationCenter, Vector3 rotationAxis, float rotationAngle)
{
var rotationQuaternion = Quaternion.AngleAxis(rotationAngle, rotationAxis);
if (Mathf.Abs(rotationAngle) < MathConstants.EqualityEpsilon)
{
for (var t = 0; t < selection.Transforms.Length; t++)
{
var targetTransform = selection.Transforms[t];
targetTransform.position = selection.BackupPositions[t];
targetTransform.rotation = selection.BackupRotations[t];
}
}
else
{
for (var t = 0; t < selection.Transforms.Length; t++)
{
var targetTransform = selection.Transforms[t];
var originalCenter = targetTransform.InverseTransformPoint(rotationCenter);
targetTransform.position = selection.BackupPositions[t];
targetTransform.rotation = rotationQuaternion * selection.BackupRotations[t];
var newCenter = targetTransform.TransformPoint(originalCenter);
targetTransform.position += rotationCenter - newCenter;
}
}
}