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- Subject: Understanding lua
- From: ashmatheson@...
- Date: Wed, 19 Jun 2002 08:52:48 -0700
OK. Here's my dilema. I'm *getting* lua, but there's just a couple
of things I'm just not grokking.
Let's say, for example, I have a C struct like so:
typedef struct _point3d
What I'd like to be able to do is have a C function (later a class ...
one step at a time) that could do this:
Point3D add(Point3D a, Point3D b)
// does stuff
What would the glue function look like? And how would I go about
creating a userdata structure in lua (or tags, still not getting the
difference here) that would be able to use is. ie:
-- lua code
mypoint.x = 1.0
mypoint.y = 2.0
mypoint.z = 3.0
mylength.x = 5.0
mylength.y = 0.0
mylength.z = 1.0
newlength = vecadd(mypoint, mylength)
I'm currently just not seeing the relationship here. Can I even *do*
Programmer at large.