public ObstructionType Obstructs(BoundingBox box)
{
if (!bbox.Intersects(box))
{
return(ObstructionType.None);
}
foreach (Structure h in Structures)
{
ObstructionType t = h.Obstructs(box);
if (t != ObstructionType.None)
{
return(t);
}
}
foreach (Road r in Roads)
{
Vector3 d = r.B - r.A;
d.Normalize();
Ray ray = new Ray(r.A, d);
float?f = ray.Intersects(box);
if (f.HasValue && f.Value < Vector3.Distance(r.A, r.B))
{
return(ObstructionType.Virtual);
}
}
return(ObstructionType.None);
}
public ObstructionType Obstructs(BoundingBox box, Matrix transform)
{
foreach (Structure h in Structures)
{
ObstructionType t = h.Obstructs(box, transform);
if (t != ObstructionType.None)
{
return(t);
}
}
foreach (Road r in Roads)
{
Vector3 a = Vector3.Transform(r.A, Matrix.Invert(transform));
Vector3 b = Vector3.Transform(r.B, Matrix.Invert(transform));
Vector3 d = b - a;
d.Normalize();
Ray ray = new Ray(r.A, d);
float?f = ray.Intersects(box);
if (f.HasValue && f.Value < Vector3.Distance(r.A, r.B))
{
return(ObstructionType.Virtual);
}
}
return(ObstructionType.None);
}
public void GetObstruction()
{
Collider[] hits = Physics.OverlapBox(transform.position + Vector3.up, Vector3.one * 0.25f, Quaternion.identity, obstructionMask);
if (hits.Length > 1)
{
Debug.LogError("Reduce extents or check tile: Too many obstructions");
return;
}
obstructionOBJ = hits[0].gameObject;
obstructionOBJ.transform.parent = this.transform;
obstruction = ObstructionType.SomethingToBeAdded;
}
public ObstructionType Obstructs(Vector3 point)
{
if (bbox.Contains(point) != ContainmentType.Contains)
{
return(ObstructionType.None);
}
foreach (Structure s in Structures)
{
ObstructionType t = s.Obstructs(point);
if (t != ObstructionType.None)
{
return(t);
}
}
foreach (Road r in Roads)
{
Vector3 mid = (r.A + r.B) * .5f;
float d = Vector3.Distance(r.B, r.A);
BoundingBox bbox = new BoundingBox(new Vector3(-2, -1, -d / 2), new Vector3(2, 1, d / 2));
Vector3 dir = r.B - r.A;
dir.Normalize();
Vector3 fxz = r.B - r.A;
fxz.Y = 0;
fxz.Normalize();
Vector3 right = Vector3.Cross(Vector3.Up, fxz);
Vector3 up = Vector3.Cross(right, dir);
Matrix rot = Matrix.CreateWorld(Vector3.Zero, dir, up);
Vector3 p2 = Vector3.Transform(point, Matrix.CreateTranslation(-mid) * Matrix.Invert(rot) * Matrix.CreateTranslation(mid));
if (bbox.Contains(p2) != ContainmentType.Disjoint)
{
return(ObstructionType.Virtual);
}
}
return(ObstructionType.None);
}
