Grimrock

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-- set timerInterval to 0.1 or 1

siAccendono = {} -- keep in memory if fireflies have to turno on or off
inizioAttesa = {} -- keep in memory when they last changed

function lucciole()
	-- settings
	local tempoInizio = 1.02 -- starting time of the day fireflies start turning on
	local tempoFine = 1.98 -- end time of fireflies dance
	local luminositaMassima = 8 -- max brightness, default is 4
	-- edn of settings
	
	local oraDelGiorno = GameMode.getTimeOfDay()
		
	-- night
	if oraDelGiorno >= tempoInizio and oraDelGiorno < tempoFine then
		local contatoreSciami = 1											-- these two lines can find
		local sciame = findEntity("forest_fireflies_" .. contatoreSciami)	-- all fireflies in game
		while sciame ~= nil do
			local randomLuce = (math.random()*5)+1	-- random light changing time
			local randomParticelle = (math.random()*5)+5 	-- random particle/fireflies changing time
			if sciame.light ~= nil then
				if siAccendono[contatoreSciami] == true then
					if Time.currentTime() > inizioAttesa[contatoreSciami] + math.max(randomLuce,randomParticelle) then -- higher time (after ">") higher turn off time
						local nuovaLuminosita = math.random()*luminositaMassima -- random brightness
						local coloreRandom = math.random(1,3) -- chose a color between 3
						inizioAttesa[contatoreSciami] = Time.currentTime() -- starting turning on
						sciame.light:setBrightness(nuovaLuminosita)
						-- sciame.light:setColor(vec(math.random(),math.random(),math.random())) -- christmas tree effect
						if coloreRandom == 1 then
							sciame.light:setColor(vec(0.2, 0.75, 0.5, 0))
						elseif coloreRandom == 2 then
							sciame.light:setColor(vec(0.2, 0.7, 0.6, 0))
						elseif coloreRandom == 3 then
							sciame.light:setColor(vec(0.1, 0.5, 0.3, 0))
						-- elseif coloreRandom == 4 then -- if u want add some colors remember to change nunber in "coloreRandom" (just before this "if")
							-- sciame.light:setColor(vec(0.3, 1, 0.75, 0))
						end
						sciame.light:fadeIn(randomLuce)
						sciame.particle:fadeIn(randomParticelle)
						siAccendono[contatoreSciami] = false
					else
					end
				elseif siAccendono[contatoreSciami] == false then
					if Time.currentTime() > inizioAttesa[contatoreSciami] + math.max(randomLuce,randomParticelle) then -- higher time (after ">") higher lighted up time, still brightness differences can look like some fireflies turned off
						inizioAttesa[contatoreSciami] = Time.currentTime() -- starting turninf off
						sciame.light:fadeOut(randomLuce)
						sciame.particle:fadeOut(randomParticelle)
						siAccendono[contatoreSciami] = true
					else
					end
				elseif siAccendono[contatoreSciami] == nil then -- starting cicle at night start (tempoInizio you chosed at beginning of script)
					inizioAttesa[contatoreSciami] = Time.currentTime()
					local caso = math.random(0,1)
					if caso == 0 then
						sciame.light:fadeOut(randomLuce)
						sciame.particle:fadeOut(randomParticelle)
						siAccendono[contatoreSciami] = true
					elseif caso == 1 then
						sciame.light:fadeIn(randomLuce)
						sciame.particle:fadeIn(randomParticelle)
						siAccendono[contatoreSciami] = false
					else
					end
				end
			else
			end
			contatoreSciami = contatoreSciami + 1
			sciame = findEntity("forest_fireflies_" .. contatoreSciami)
		end
	else
	
	-- day
		local contatoreSciami = 1
		local sciame = findEntity("forest_fireflies_" .. contatoreSciami)
		while sciame ~= nil do
			if sciame.light ~= nil then
				local randomLuce = (math.random()*10)+1
				local randomParticelle = (math.random()*10)+10
				sciame.light:fadeOut(randomLuce)
				sciame.particle:fadeOut(randomParticelle)
				siAccendono[contatoreSciami] = nil
			else
			end
			contatoreSciami = contatoreSciami + 1
			sciame = findEntity("forest_fireflies_" .. contatoreSciami)
		end
	end
end