public bool Intersects(Line2D line, out float t0, out float t1, out float t2, out float t3)
{
List <LineSegment2D> segs = LineSegment2D.FromBounds(this);
t0 = t1 = t2 = t3 = 0f;
float unused;
// horizontal
float h0, h1;
bool intersects = segs[0].line.Intersects(line, out unused, out h0);
if (!intersects)
{
return(false);
}
intersects = segs[1].line.Intersects(line, out unused, out h1);
if (!intersects)
{
return(false);
}
// vertical
float v0, v1;
intersects = segs[2].line.Intersects(line, out unused, out v0);
if (!intersects)
{
return(false);
}
intersects = segs[3].line.Intersects(line, out unused, out v1);
if (!intersects)
{
return(false);
}
float hh0 = Mathf.Min(h0, h1);
float hh1 = Mathf.Max(h0, h1);
float vv0 = Mathf.Min(v0, v1);
float vv1 = Mathf.Max(v0, v1);
if (MUtils.LessOrEqual(hh0, vv0))
{
// hit h0 first
t0 = hh0;
t1 = vv0;
t2 = Mathf.Min(hh1, vv1);
t3 = Mathf.Max(hh1, vv1);
return(MUtils.LessOrEqual(vv0, hh1));
}
else
{
// hit v0 first
t0 = vv0;
t1 = hh0;
t2 = Mathf.Min(vv1, hh1);
t3 = Mathf.Max(vv1, hh1);
return(MUtils.LessOrEqual(hh0, vv1));
}
}
public bool PointOnSegment(float t)
{
return(MUtils.LessOrEqual(d0, t) && MUtils.LessOrEqual(t, d1));
}
