-- Chapter 26 example: a counter object with the colon syntax.

local counter = { count = 0 }

function counter:step()
    self.count = self.count + 1
end

counter:step()
counter:step()
counter:step()
print(counter.count)   -- 3

-- Try-this: add counter:reset() that sets self.count to 0, call it,
-- then print counter.count again.