SCED/src/playermat/ClueCounter.ttslua

local guidReferenceApi = require("core/GUIDReferenceApi")
local playmatApi = require("playermat/PlaymatApi")
local searchLib = require("util/SearchLib")

exposedValue = 0

local playmat

function onLoad()
  self.createButton({
    label = "",
    click_function = "countItems",
    function_owner = self,
    position = { 0, 0.1, 0 },
    height = 0,
    width = 0,
    font_color = { 0, 0, 0 },
    font_size = 2000
  })

  -- get closest playmat
  local matColor = playmatApi.getMatColorByPosition(self.getPosition())
  playmat = guidReferenceApi.getObjectByOwnerAndType(matColor, "Playermat")

  -- start loop
  Wait.time(countItems, 1.5, -1)
end

-- activated once per second, counts clues on the playmat
function countItems()
  local totalValue = 0
  for _, item in ipairs(getClues()) do
    totalValue = totalValue + math.abs(item.getQuantity())
  end
  exposedValue = totalValue
  self.editButton({ index = 0, label = totalValue })
end

function removeAllClues(trash)
  for _, obj in ipairs(getClues()) do
    trash.putObject(obj)
  end
end

function getClues()
  return searchLib.onObject(playmat, "isClue")
end