-- Classes
local Person_Class = {}
Person_Class.__index = Person_Class
function Person_Class:live()
   self.happiness = self.happiness - 10
end

local Employee_Class = setmetatable({}, Person_Class)
Employee_Class.__index = Employee_Class
function Employee_Class:payTaxes()
   self.money = self.money - 10
end

local Programmer_Class = setmetatable({}, Employee_Class)
Programmer_Class.__index = Programmer_Class
function Programmer_Class:program()
   self.frustration = self.frustration + 10
end

-- Components
local Person_Component = {}
Person_Component.objects = {}
function Person_Component.add(o)
   Person_Component.objects[#Person_Component.objects + 1] = o
end
function Person_Component.update()
   for i = 1, #Person_Component.objects do
      local o = Person_Component.objects[i]
      o.happiness = o.happiness - 10
   end
end

local Employee_Component = {}
Employee_Component.objects = {}
function Employee_Component.add(o)
   Employee_Component.objects[#Employee_Component.objects + 1] = o
end
function Employee_Component.update()
   for i = 1, #Employee_Component.objects do
      local o = Employee_Component.objects[i]
      o.money = o.money - 10
   end
end

local Programmer_Component = {}
Programmer_Component.objects = {}
function Programmer_Component.add(o)
   Programmer_Component.objects[#Programmer_Component.objects + 1] = o
end
function Programmer_Component.update()
   for i = 1, #Programmer_Component.objects do
      local o = Programmer_Component.objects[i]
      o.frustration = o.frustration + 10
   end
end

-- Initial creation
local objects = {}
for i = 1, 500000 do
   local o = {
      happiness   = 100,
      money       = 0,
      frustration = 0,
   }

   objects[i] = setmetatable(o, Programmer_Class)

   Person_Component.add(o)
   Employee_Component.add(o)
   Programmer_Component.add(o)
end

-- Actual test
local s1 = love.timer.getTime()
for i = 1, #objects do
   local o = objects[i]
   o:live()
   o:payTaxes()
   o:program()
end
local e1 = love.timer.getTime()

local s2 = love.timer.getTime()
Person_Component.update()
Employee_Component.update()
Programmer_Component.update()
local e2 = love.timer.getTime()

print(e1 - s1)
print(e2 - s2)