private static void AddSnapPlane(ProductionAxis axis, string snapPlaneKey, Bounds volumeTerminus)
{
var normal = new Vector3();
normal[(int)axis] = 1;
ModuleProduction.SnapPlanes.Add(new KeyValuePair <string, Plane>(snapPlaneKey, new Plane(normal, volumeTerminus.max[(int)axis])));
}
/// <summary>
/// Select all snap planes with normal matching a given axis and with name among given selector.
/// </summary>
/// <param name="axis"></param>
/// <param name="snapPlaneSelectors"></param>
/// <returns></returns>
private IEnumerable <Plane> SelectSnapPlanes(ProductionAxis axis, IEnumerable <string> snapPlaneSelectors)
{
var snaps = snapPlaneSelectors != null
? ModuleProduction.SnapPlanes.Where(planeEntry => planeEntry.Value.normal[(int)axis] > 0 &&
snapPlaneSelectors.Any(selector => selector.Equals(planeEntry.Key))).Select(kvp => kvp.Value)
: new Plane[0];
return(snaps);
}
/// <summary>
/// Nudge bounds to match with the closest snap plane.
/// </summary>
/// <param name="axis"></param>
/// <param name="selectedSnapPlanes">
/// All selected snap planes have normal vector with a component matching axis of magnitude 1;
/// eg if ProductionAxis.X then all planes have normal (+/-1, 0, 0)
/// </param>
/// <param name="proposedBounds"></param>
/// <returns></returns>
private Bounds SnapBoundsToSnapPlanes(ProductionAxis axis, IEnumerable <Plane> selectedSnapPlanes, Bounds proposedBounds)
{
var candidates = selectedSnapPlanes
.OrderBy(plane => Mathf.Abs(plane.distance - proposedBounds.max[(int)axis]))
.ToArray();
if (candidates.Length > 0)
{
if (candidates[0].distance < proposedBounds.min[(int)axis])
{
var newMax = proposedBounds.max;
newMax[(int)axis] = candidates[0].distance;
var newCenter = proposedBounds.center;
newCenter[(int)axis] = proposedBounds.min[(int)axis] + (newMax[(int)axis] - proposedBounds.min[(int)axis]) / 2f;
return(new Bounds(newCenter, newMax - proposedBounds.min));
}
}
return(proposedBounds);
}
private CubeProductionScope SelectionScaleAndShift(SelectProduction selector, Quaternion rotation, Vector3 octant, ProductionAxis axis)
{
var s = rotation * Bounds.size;
s[(int)axis] = selector.IsAbsolute
? selector.FaceBreadth
: s[(int)axis] * selector.FaceBreadth;
// after applying the rotation, we could have rotated into a negative space. so just abs it!
s[0] = Mathf.Abs(s[0]);
s[1] = Mathf.Abs(s[1]);
s[2] = Mathf.Abs(s[2]);
var offset = (Math.Abs((rotation * Bounds.size)[(int)axis]) - s[(int)axis]) / 2f;
var c = Bounds.center - offset * (rotation * octant);
if (s.x < 0f || s.y < 0f || s.z < 0f)
{
Debug.Log("Selecting to a negative size...");
}
return(new CubeProductionScope(new Bounds(c, s), rotation));
}