lua "class" example

ClassExample.lua

local Class = setmetatable ({ },
	{
		__call = function (class, ...)
			return class.new (...)
		end
	}
)

Class.__index = Class
Class.__call = function (self)
	return Class.new (self)
end

function Class.new (something)
	local self = setmetatable ({ }, Class)
	self.something = something
	return self
end

function Class:setSomething(something)
	self.something = something
end

function Class:getSomething()
	return self.something
end

obj_1 = Class("obj 1")
obj_2 = Class("obj 2")
obj_1:setSomething("obj 1 modified")

print(obj_1:getSomething(), obj_2:getSomething())