diff options
Diffstat (limited to 'modules/mono/glue/Managed/Files/Plane.cs')
| -rw-r--r-- | modules/mono/glue/Managed/Files/Plane.cs | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/modules/mono/glue/Managed/Files/Plane.cs b/modules/mono/glue/Managed/Files/Plane.cs index a13161d2e6..26e717e089 100644 --- a/modules/mono/glue/Managed/Files/Plane.cs +++ b/modules/mono/glue/Managed/Files/Plane.cs @@ -82,12 +82,12 @@ namespace Godot return Mathf.Abs(dist) <= epsilon; } - public Vector3 Intersect3(Plane b, Plane c) + public Vector3? Intersect3(Plane b, Plane c) { real_t denom = _normal.Cross(b._normal).Dot(c._normal); - if (Mathf.Abs(denom) <= Mathf.Epsilon) - return new Vector3(); + if (Mathf.IsZeroApprox(denom)) + return null; Vector3 result = b._normal.Cross(c._normal) * D + c._normal.Cross(_normal) * b.D + @@ -96,34 +96,35 @@ namespace Godot return result / denom; } - public Vector3 IntersectRay(Vector3 from, Vector3 dir) + public Vector3? IntersectRay(Vector3 from, Vector3 dir) { real_t den = _normal.Dot(dir); - if (Mathf.Abs(den) <= Mathf.Epsilon) - return new Vector3(); + if (Mathf.IsZeroApprox(den)) + return null; real_t dist = (_normal.Dot(from) - D) / den; // This is a ray, before the emitting pos (from) does not exist if (dist > Mathf.Epsilon) - return new Vector3(); + return null; return from + dir * -dist; } - public Vector3 IntersectSegment(Vector3 begin, Vector3 end) + public Vector3? IntersectSegment(Vector3 begin, Vector3 end) { Vector3 segment = begin - end; real_t den = _normal.Dot(segment); - if (Mathf.Abs(den) <= Mathf.Epsilon) - return new Vector3(); + if (Mathf.IsZeroApprox(den)) + return null; real_t dist = (_normal.Dot(begin) - D) / den; + // Only allow dist to be in the range of 0 to 1, with tolerance. if (dist < -Mathf.Epsilon || dist > 1.0f + Mathf.Epsilon) - return new Vector3(); + return null; return begin + segment * -dist; } |