public static Transform FindParentToAssignTo(BrushIntersection intersection)
{
if (intersection.brush == null ||
SelectionUtility.IsPrefab(intersection.brush.gameObject))
{
var lastModel = SelectionUtility.LastUsedModel;
if (lastModel == null ||
SelectionUtility.IsPrefab(lastModel.gameObject))
{
return(null);
}
return(lastModel.transform);
}
var hoverParent = intersection.brush.transform.parent;
var iterator = hoverParent;
while (iterator != null)
{
var node = iterator.GetComponent <CSGNode>();
if (node != null)
{
hoverParent = node.transform;
}
iterator = iterator.transform.parent;
}
return(hoverParent);
}
public static Vector3 SnapToWorld(CSGPlane snapPlane, Vector3 unsnappedPosition, Vector3 snappedPosition, ref List <Vector3> snappingEdges, out CSGBrush snappedOnBrush, CSGBrush[] ignoreBrushes = null)
{
snappedOnBrush = null;
var intersections = new BrushIntersection[0];
var test_points = new Vector3[] { unsnappedPosition, snappedPosition };
BrushIntersection intersection;
for (int i = 0; i < test_points.Length; i++)
{
var test_point2D = CameraUtility.WorldToGUIPoint(test_points[i]);
if (SceneQueryUtility.FindWorldIntersection(test_point2D, out intersection))
{
if (intersection.brush &&
intersection.brush.ControlMesh != null)
{
intersection.worldIntersection = GeometryUtility.ProjectPointOnPlane(snapPlane, intersection.worldIntersection);
ArrayUtility.Add(ref intersections, intersection);
}
}
}
var old_difference = snappedPosition - unsnappedPosition;
var old_difference_magnitude = old_difference.magnitude * 1.5f;
Vector3 newSnappedPoint = snappedPosition;
CSGPlane?snappingPlane = snapPlane;
for (int i = 0; i < intersections.Length; i++)
{
if (ignoreBrushes != null &&
ArrayUtility.Contains(ignoreBrushes, intersections[i].brush))
{
continue;
}
List <Vector3> outEdgePoints;
Vector3 outPosition;
if (GridUtility.SnapToVertices(intersections[i].brush,
snappingPlane, unsnappedPosition,
out outEdgePoints,
out outPosition))
{
var new_difference = outPosition - unsnappedPosition;
var new_difference_magnitude = new_difference.magnitude;
if (new_difference_magnitude <= old_difference_magnitude + MathConstants.EqualityEpsilon)
{
old_difference_magnitude = new_difference_magnitude;
newSnappedPoint = outPosition;
snappingEdges = outEdgePoints;
snappedOnBrush = intersections[i].brush;
}
}
if (GridUtility.SnapToEdge(intersections[i].brush, snappingPlane ?? intersections[i].plane,
intersections[i].worldIntersection,
out outEdgePoints,
out outPosition))
{
var new_difference = outPosition - unsnappedPosition;
var new_difference_magnitude = new_difference.magnitude * 1.1f;
if (new_difference_magnitude <= old_difference_magnitude + MathConstants.EqualityEpsilon)
{
old_difference_magnitude = new_difference_magnitude;
newSnappedPoint = outPosition;
snappingEdges = outEdgePoints;
snappedOnBrush = intersections[i].brush;
}
}
}
//snappingEdges = FindAllEdgesThatTouchPoint(snappedOnBrush, newSnappedPoint);
return(newSnappedPoint);
}