public Eye(CoordD origin, double radius, double theta, double offset, double magnitude)
{
this.radius = radius;
ray = new Ray(origin.by_angle(theta + offset, radius), theta, magnitude);
this.offset = offset;
while (this.offset < 0)
{
this.offset += Consts.τ;
}
while (this.offset >= Consts.τ)
{
this.offset -= Consts.τ;
}
}
public void move(CoordD pos)
{
ray.O = pos.by_angle(ray.θ, radius);
}
public CoordD end_point()
{
return(O.by_angle(θ, r));
}