Lua Class Function

function Class( base )
	local class = { -- a new class metatable
		base = base
	}
	class.__index = class

	local classmt = { -- the new classes' meta table, this allows inheritence if the class has a base, and lets you create a new instance with <classname>()
		__index = base
	}

	classmt.__call = function( class , ... ) -- expose a constructor which can be called by <classname>(<args>)
		local obj = {} -- new instance of the class to be manipulated.
		setmetatable( obj , class )

		if class.Initialize then
			class.Initialize( obj , ... )
		end

		return obj
	end

	setmetatable(class, classmt)
	return class
end