oh the math --
-- Properties
--

PlaceWindowsBaricades = {};
ErosionSpeedValues = {20, 50, 100, 200, 500}
TimeSinceApoValues = {0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360}
CurrentErosionPercentage = 0
CurrentWorldAgeDays = 0

-- Methods

function PlaceWindowsBaricades.loadGridsquare(sq)

    if isClient() == false then

        for i=0,sq:getObjects():size()-1 do

            -- Searching for windows
            local tileIsoObject = sq:getObjects():get(i);

            if tileIsoObject then

                if instanceof(tileIsoObject, "IsoWindow") then

                    local modData = tileIsoObject:getModData()

                    -- If the window have not been loaded for the past 30 days, retry Barricaded World code
                    if (not modData["BarricadedWorld:isDefinitiveParsed"]) and (not modData["BarricadedWorld:isPlayerPlaced"])
                    and (not modData["BarricadedWorld:parsedDate"] or modData["BarricadedWorld:parsedDate"] + 30 < CurrentWorldAgeDays) then

                        local coords = { x = sq:getX(), y = sq:getY(), z = sq:getZ() }
                        object = PlaceWindowsBaricades.getBarricadeAble(coords.x, coords.y, coords.z, tileIsoObject:getObjectIndex());

                        -- The more advanced the erosion, the more chances the following code has to happen.
                        -- 25% of current erosion advancement means 25% chance for a windows to go through the Barricaded World code.
                        if object and (ZombRand(0,100) < CurrentErosionPercentage) then

                            if ZombRand(0,100) >= 40 then
                                object:smashWindow()
                            end

                            if coords.z == 0 then
                                local args = {}
                                local randomBaricadeLocation = ZombRand(0,4)
                                local barricadeLocation = true

                                if (randomBaricadeLocation > 2) then
                                    barricadeLocation = false
                                end

                                local randomBaricade = ZombRand(0,100)

                                if (randomBaricade >= 94) then
                                    -- print("This window has metal sheet")
                                    local args = { x=coords.x, y=coords.y, z=coords.z, index=i, isMetal=true, isMetalBar=false, itemID='Base.MetalBar', condition=10, amount=1 }
                                    PlaceWindowsBaricades.placeBarricade(args, object, barricadeLocation);
                                elseif (randomBaricade < 94) and (randomBaricade >= 49) then
                                    -- print("This window random planks")
                                    tileIsoObject:addRandomBarricades()
                                end
                            end

                        end

                        if CurrentErosionPercentage > 100 then
                            modData["BarricadedWorld:isDefinitiveParsed"] = true
                            tileIsoObject:transmitModData()
                        end

                    end

                    modData["BarricadedWorld:parsedDate"] = CurrentWorldAgeDays
                    tileIsoObject:transmitModData()

                elseif instanceof(tileIsoObject, "IsoDoor") and not tileIsoObject:getSprite():getProperties():Is("GarageDoor") then

                    local modData = tileIsoObject:getModData()

                    -- If the window have not been loaded for the past 30 days, retry Barricaded World code
                    if (not modData["BarricadedWorld:isDefinitiveParsed"]) and (not modData["BarricadedWorld:isPlayerPlaced"])
                    and (not modData["BarricadedWorld:parsedDate"] or modData["BarricadedWorld:parsedDate"] + 30 < CurrentWorldAgeDays) then

                        local coords = { x = sq:getX(), y = sq:getY(), z = sq:getZ() }

                        -- The more advanced the erosion, the more chances the following code has to happen.
                        -- 25% of current erosion advancement means 25% chance for a windows to go through the Barricaded World code.
                        if (ZombRand(0,100) < CurrentErosionPercentage) then

                            local randomRoll = ZombRand(0,100)

                            -- If exterior door, has 20% break chances & 55% baricade chances
                            if tileIsoObject:isExteriorDoor(nil) then
                                if (randomRoll >= 60) then
                                    tileIsoObject:destroy()
                                    break
                                elseif (randomRoll < 60) and (randomRoll >= 30) then
                                    tileIsoObject:addRandomBarricades()
                                end
                            -- If interior door, has 20% break chances & no barricades
                            else
                                if (randomRoll >= 60) then
                                    tileIsoObject:destroy()
                                    break
                                end
                            end

                        end

                        if CurrentErosionPercentage > 100 then
                            modData["BarricadedWorld:isDefinitiveParsed"] = true
                            tileIsoObject:transmitModData()
                        end

                    end

                    modData["BarricadedWorld:parsedDate"] = CurrentWorldAgeDays
                    tileIsoObject:transmitModData()

                end

            end

        end

    end

end

function PlaceWindowsBaricades.getBarricadeAble(x, y, z, index)
    local sq = getCell():getGridSquare(x, y, z)
    if sq and index >= 0 and index < sq:getObjects():size() then
        o = sq:getObjects():get(index)
        if instanceof(o, 'BarricadeAble') then
            return o
        end
    end
    return nil
end

function PlaceWindowsBaricades.placeBarricade(args, object, barricadeLocation)

    local barricade = IsoBarricade.AddBarricadeToObject(object, barricadeLocation)

    if barricade then
        if args.isMetal then
            local metal = InventoryItemFactory.CreateItem('Base.SheetMetal')
            metal:setCondition(args.condition)
            barricade:addMetal(character, metal)
            barricade:transmitCompleteItemToClients()
            barricade:sendObjectChange('state')
        elseif args.isMetalBar then
            local metal = InventoryItemFactory.CreateItem('Base.MetalBar')
            metal:setCondition(args.condition)
            barricade:addMetalBar(character, metal)
            barricade:transmitCompleteItemToClients()
        else
            local plank = InventoryItemFactory.CreateItem('Base.Plank')

            for i=0, args.amount - 1 do
                barricade:addPlank(character, plank)

                if isServer() then
                    if barricade:getNumPlanks() == 1 then
                        barricade:transmitCompleteItemToClients()
                    else
                        barricade:sendObjectChange('state')
                    end
                end
            end
        end
    end
    -- else print("No barricade location found");
end

function PlaceWindowsBaricades.onObjectAdded(isoObject)
    if instanceof(isoObject, "IsoWindow") or instanceof(isoObject, "IsoDoor") then
        local modData = isoObject:getModData()
        modData["BarricadedWorld:isPlayerPlaced"] = true
        isoObject:transmitModData()
    end
end

function PlaceWindowsBaricades.preCalculateErosion()
    CurrentWorldAgeDays = getGameTime():getWorldAgeHours() / 24
    local sandboxOptions = getSandboxOptions()
    local timeSpent = CurrentWorldAgeDays + TimeSinceApoValues[sandboxOptions:getTimeSinceApo()]
    CurrentErosionPercentage = (timeSpent/ErosionSpeedValues[sandboxOptions:getErosionSpeed()])*100
end

Events.OnGameTimeLoaded.Add(PlaceWindowsBaricades.preCalculateErosion)
Events.EveryDays.Add(PlaceWindowsBaricades.preCalculateErosion)
Events.OnGameStart.Add(PlaceWindowsBaricades.preCalculateErosion)

Events.OnObjectAdded.Add(PlaceWindowsBaricades.onObjectAdded)
Events.LoadGridsquare.Add(PlaceWindowsBaricades.loadGridsquare);