public static Vec2d operator -(Vec2d a, double b)
{
Vec2d v = new Vec2d();
v.X = a.X - b;
v.Y = a.Y - b;
return v;
}
public static Vec2d operator /(Vec2d a, Vec2d b)
{
Vec2d v = new Vec2d();
v.X = a.X / b.X;
v.Y = a.Y / b.Y;
return v;
}
public static Vec2d operator -(Vec2d v)
{
Vec2d vec = new Vec2d();
vec.X = -v.X;
vec.Y = -v.Y;
return vec;
}
public static Vec2d operator /(Vec2d v, double s)
{
Vec2d vec = new Vec2d();
// Division of doubles can be expensive,
// so we multiply instead, as it's much cheaper.
double num = 1f / s;
vec.X = v.X * num;
vec.Y = v.Y * num;
return vec;
}
public static Vec2d operator /(double s, Vec2d v)
{
Vec2d vec = new Vec2d();
vec.X = s / v.X;
vec.Y = s / v.Y;
return vec;
}