Purge script for Garry's Mod, based on film 'The Purge'.

purge.lua

-- Purge. Written by Dr. Matt, initial version/idea by Paft.

AddCSLuaFile()

if SERVER then
	util.AddNetworkString("purge")
	local purge=false
	local cooldown=false
	local cooldowntime=15
	
	function togglepurge()
		if cooldown then
			return false
		end
		
		purge = not purge
		
		net.Start("purge")
			net.WriteBit(purge)
			net.WriteBit(false)
		net.Broadcast()
		
		cooldown=true
		timer.Simple(cooldowntime,function()
			net.Start("purge")
				net.WriteBit(purge)
				net.WriteBit(true)
			net.Broadcast()
			cooldown=false
		end)
		
		return true
	end
	
	hook.Add("PlayerSay", "purge", function(ply,text)
		if ply:IsAdmin() or ply:IsSuperAdmin() then
			local t=string.Explode(" ", text)
			if t and t[1] then
				local cmd=t[1]:lower()
				if cmd=="!purge" then
					togglepurge()
					return ""
				end
			end
		end
	end)
	
	concommand.Add("purge", function(ply,cmd,args)
		if not IsValid(ply) or (ply and ply:IsAdmin() or ply:IsSuperAdmin()) then
			togglepurge()
		end
	end)
	
	hook.Add("PlayerInitialSpawn", "purge", function(ply)
		if purge then
			net.Start("purge")
				net.WriteBit(purge)
				net.WriteBit(true)
			net.Broadcast()
		end
	end)
elseif CLIENT then
	surface.CreateFont( "purgebig", {
		font = "CloseCaption_Bold",
		size = 52,
		weight = 700,
		antialias = true,
	})
	
	local snd
	
	net.Receive("purge",function(len)
		local on=tobool(net.ReadBit())
		local tempbig=tobool(net.ReadBit())
		
		if tempbig then
			hook.Remove("HUDPaint", "purgebig")
			if on then
				hook.Add("HUDPaint", "purge", function()
					draw.SimpleText("Purge is active", "CloseCaption_Bold", ScrW()*0.9, ScrH()/14, Color(255,56,56,150), TEXT_ALIGN_CENTER)
				end)
			end
			return
		end
		
		if snd then
			snd:Stop()
		end
	
		if on then
			hook.Add("HUDPaint", "purgebig", function()
				draw.SimpleText("Purge is starting | Prepare yourself", "purgebig", ScrW()/2, ScrH()/14, Color(255,56,56,150), TEXT_ALIGN_CENTER)
			end)
			snd=CreateSound(LocalPlayer(), "paft/end.wav")
		else
			hook.Remove("HUDPaint", "purge")
			hook.Add("HUDPaint", "purgebig", function()
				draw.SimpleText("Purge has ended | Normality will pursue", "purgebig", ScrW()/2, ScrH()/14, Color(255,56,56,150), TEXT_ALIGN_CENTER)
			end)
			snd=CreateSound(LocalPlayer(), "paft/end.wav")
			
		end
		snd:Play()
	end)
end

in what folder do i have to place this timer...