public bool PointInside(Vector3s pos)
{
var p = pos.Xz;
var a = Vertices[0].Xz;
var b = Vertices[1].Xz;
var c = Vertices[2].Xz;
if (Vector2s.PerpDot(a - p, b - a) < 0)
{
return(false);
}
if (Vector2s.PerpDot(b - p, c - b) < 0)
{
return(false);
}
if (Vector2s.PerpDot(c - p, a - c) < 0)
{
return(false);
}
return(true);
}
public static void WriteBE(this Stream stream, Vector3s vector)
{
stream.WriteBE(vector.X);
stream.WriteBE(vector.Y);
stream.WriteBE(vector.Z);
}
public float HeightAt(Vector3s pos)
{
return(-(pos.X * Normal.X + Normal.Z * pos.Z + OriginOffset) / Normal.Y);
}
public void Recalculate()
{
Normal = Vector3.Normalize(Vector3s.Cross(Vertices[1] - Vertices[0], Vertices[2] - Vertices[1]).ToVector3());
OriginOffset = -Vector3.Dot(Vertices[0].ToVector3(), Normal);
}
public Triangle3s(Vector3s a, Vector3s b, Vector3s c)
{
Vertices = new Vector3s[] { a, b, c };
}