lua-users home
lua-l archive

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index]

I have a program and I was thinking on making it OO so I made a color class to start off with, and it doesn't work the way I want it to. I have a constructor, and I want to make sure that the r, g, and b values (and eventually the a value) will not be able to be over 255. So a simple % operator will suffice, right? I have this so far:

Color = {r = 0, g = 0, b = 0}

function Color:new(o)
     local o = o or {} 
     o.r = o.r % 255
     o.g = o.g % 255
     o.b = o.b % 255
     setmetatable(o, self)
     self.__index = self
     return o;
--other constructors, methods, and implementation not shown
It gives me an error of "can't perform arrithmictic on table: o.b"
I wasn't sure if the error is in the love2d runtime, or is it on my bad?