public static float DistanceFromRect(Rect rect, Vector pos)
{
if (rect.Contains(pos))
{
return 0;
}
var nw = rect.GetCorner(CompassPoint.NorthWest);
var ne = rect.GetCorner(CompassPoint.NorthEast);
var sw = rect.GetCorner(CompassPoint.SouthWest);
var se = rect.GetCorner(CompassPoint.SouthEast);
var distanceFromTop = DistanceFromLineSegment(new LineSegment(nw, ne), pos);
var distanceFromRight = DistanceFromLineSegment(new LineSegment(ne, se), pos);
var distanceFromBottom = DistanceFromLineSegment(new LineSegment(se, sw), pos);
var distanceFromLeft = DistanceFromLineSegment(new LineSegment(sw, nw), pos);
return Math.Min(distanceFromTop, Math.Min(distanceFromLeft, Math.Min(distanceFromBottom, distanceFromRight)));
}
public bool IntersectsWith(Rect rect)
{
if (rect.Contains(Start) || rect.Contains(End))
{
return true;
}
var a = new LineSegment(new Vector(rect.Left, rect.Top), new Vector(rect.Right, rect.Top));
var b = new LineSegment(new Vector(rect.Right, rect.Top), new Vector(rect.Right, rect.Bottom));
var c = new LineSegment(new Vector(rect.Right, rect.Bottom), new Vector(rect.Left, rect.Bottom));
var d = new LineSegment(new Vector(rect.Left, rect.Bottom), new Vector(rect.Left, rect.Top));
List<LineSegmentIntersect> intersects;
if (Intersect(a, false, out intersects) || Intersect(b, false, out intersects) || Intersect(c, false, out intersects) || Intersect(d, false, out intersects))
{
return true;
}
return false;
}
