public SegmentSegmentPosition IntesectionWith(LineSegment1D other)
{
// TODO: add tolerance
if (other.Start > this.End)
{
return(SegmentSegmentPosition.Disjoint);
}
if (other.End < this.Start)
{
return(SegmentSegmentPosition.Disjoint);
}
if (other.Start > this.Start && other.Start < this.End)
{
return(SegmentSegmentPosition.Overlapping); // Is the second check necessary?
}
if (other.End > this.Start && other.End < this.End)
{
return(SegmentSegmentPosition.Overlapping);
}
if (other.Start == this.End)
{
return(SegmentSegmentPosition.CommonVertexOnly); // TODO: return the vertex itself
}
else
{
return(SegmentSegmentPosition.CommonVertexOnly); // TODO: return the vertex itself
}
}
[InlineData(1, 4, 2, 3, 1, "NEVER")] // overlapping
public void LineSegementCollision1D(int start1, int stop1, int start2, int stop2, int motion2, string expected)
{
var ls1 = new LineSegment1D(FixedPoint.FromInt(start1), FixedPoint.FromInt(stop1));
var ls2 = new LineSegment1D(FixedPoint.FromInt(start2), FixedPoint.FromInt(stop2));
var m = FixedPoint.FromInt(motion2);
var time = CollisionDetector.DetermineCollisionTime(ls1, ls2, m);
var res = time == null ? "NEVER" : time.Value.ToString();
Assert.Equal(expected, res);
}
public void TestOverlap(int a1, int a2, int b1, int b2, int expected)
{
var l1 = new LineSegment1D(FixedPoint.FromInt(a1), FixedPoint.FromInt(a2));
var l2 = new LineSegment1D(FixedPoint.FromInt(b1), FixedPoint.FromInt(b2));
var overlap1 = l1.MeasureOverlap(l2);
var overlapInt1 = (int)overlap1;
Assert.Equal(expected, overlapInt1);
var overlap2 = l2.MeasureOverlap(l1);
var overlapInt2 = (int)overlap2;
Assert.Equal(expected, overlapInt2);
}
