-- COMES AFTER UI.LUA

Stones = 150.0  -- Current Stone Stock

crafter = {}

for i=0, 50 do
  local dig = {}
  dig.title = "D"
  dig.own = false
  dig.readyTime = 10 -- time until active in Sec
  dig.ready = 10
  dig.speed = 0.5 -- Speed in Sec
  dig.amount = 1 -- Amount by Sec
  dig.upCost = 50 -- Stones req to dig twice more
  local xg = (i%20)*50
  local yg = 50 + math.floor(i/20)*50
  dig.ui = {color = colorBlue, x = xg, y = yg, w = 50, h = 50}
  dig.uiready = {color = colorOrange, x = xg, y = yg+50, w = 50, h = 0}
  table.insert(crafter, dig)
end


function updateStocks(sec)
  for i=1, #crafter do
    local crft = crafter[i]

    if crft.ready == 0 then
      Stones = Stones + (crft.amount * sec * crft.speed)
    else
      if crft.own then
        crft.ready = crft.ready - sec
        if crft.ready < 1 then
          crft.ready = 0
          crft.ui.color = colorOrange
        end
      end
    end
  end
end

function upgradeCrafter(crft)
  -- BUY CRAFTER
  if not crft.own then
    if pay(50) then
      crft.own = true
    end
  -- UPGRADE CRAFTER
  elseif crft.ready == 0 and pay(50) then
    crft.amount = crft.amount + 1
  end
end

function pay(cost)
  if Stones >= cost then
    Stones = Stones - cost
    return true
  else
    return false
  end
end