User:Fleeting Frames/setwarning

Save as setwarning.lua into /hack/scripts folder.

--used to give warning a day and step before migrants or caravans arrive.

local interestingTypes = {}
interestingTypes[0] = "Caravan"
interestingTypes[1] = "Migrants"
interestingTypes[6] = "Gremlin"
interestingTypes[8] = "Werebeast"

local dayWarning = true
local stepWarning = true

local curTime = df.global.cur_year_tick
local eventTime
setTimers = setTimers or {} --Only want 1 announcement, which means need to track which events already have announcements set
local timer

for index, event in ipairs(df.global.timed_events) do
	if interestingTypes[event.type] then
		eventTime = 10*(event.season_ticks+event.season*10080)
		
		if not setTimers[eventTime] then
		if stepWarning and ((eventTime-1) > curTime) then
			local announcementTextStep = "Warning: " .. interestingTypes[event.type] .. " coming on next step!"
			setTimers[eventTime] = dfhack.timeout((eventTime-curTime-1), "ticks", function()
				df.global.pause_state = true --insurance
				dfhack.gui.showPopupAnnouncement(
					announcementTextStep,
					COLOR_RED,
					true)
					setTimers[eventTime] = nil --cleanup
			end)
		end
		
		if dayWarning and ((eventTime-1200) > curTime) then
			local announcementTextDay = "Warning: " .. interestingTypes[event.type] .. " coming in a day!"
			setTimers[eventTime] = dfhack.timeout((eventTime-curTime-1200), "ticks", function()
				df.global.pause_state = true --insurance
				dfhack.gui.showPopupAnnouncement(
					announcementTextDay,
					COLOR_RED,
					true)
			end)
		end
		end
	end
end