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I'm trying to make my own programming language with a syntax similar to lisp.  Not actual lisp though.  But right now I'm trying to work out how objects would work.  Currently this is what I'm looking at:

C-style:
ball.x = ball.x + ball.vx;

Mine:
(set (ball "x") (+ (ball "x") (ball "vx")))

Basically an object really is just a function that returns a reference to the member with the name in the argument (i.e. x).  This seems like it might be easy to implement, but there might just be a better syntax.

Any suggestions?