Re: New operators?

[Stefan Sandberg <keffo.sandberg@...>]

Eike Decker wrote:
> Hi
>
> I am carrying this in my mind for some time now and I guess, I am not alone:
>
> What about a few new operators?
> I think most people with a C/C++ background are missing the += *= etc operators
> - and in my opinion these are really useful. 
>
> I have quite alot of vectoroperations in my luacode and it would be really great
> if I could write
>
> x,y,z += vx,vy,vz
> or
> x,y,z /= len,len,len
>
> instead of
>
> x,y,z = x + vx, y + vy, z + vz
> or
> x,y,z = x / len, y / len, z / len
>
> It can be easier read and understood and is less to write. 
>
> Are there any reasons that speak against such operators (btw., the # operator is
> was a great addition to 5.1)?
>
> greetings
> Eike Decker
>
>   

+= operators aside, introducing a,b,c += d,e,f is just silly..
If you do lots of vector math in your app, you really should create some 
vector magic for it, such as this, http://giger.robot9.net/pub/vector.html
It's reasonably fast, can be made faster, and allows you to do stuff 
like this:

   local a = vector:new( 1, 2, 3 )
   local b = vector:new( 4, 5, 6 )

   local c = a + b;
   c = c + vector:new( 1,1,1 );

etc etc..