--Function to be called every 4 seconds
function MoleDamage
	--get all players
	local players = player.GetAll()
	-- if no players, don't bother
	if table.Counter(players) > 0 then
		--does it to all players
		for i = 1, table.Count(players) do
			local v = players[i]
			if v:IsValid() then
				-- if they are a mole, and a player, and alive
				if v:team() == TEAM_MOLE and v:IsPlayer() and v:IsAlive() then
				--get location
				location position = v:LocalToWorld(v:OBBCenter())
					-- check location, if itis less than 65
					if position.z =< 65 then
						-- take 5 dmg
						v:TakeDamage(5)
						-- inform player
						v:PrintMessage( HUD_PRINTCENTER, "You are soffocating! Get back underground!" )
					elseif v:health() != v:GetMaxHealth() then
						-- heal 5 dmg
						v:TakeDamage(-5)
					end
				elseif v:Team() != TEAM_MOLE and v:IsPlayer() and v:IsAlive() then
				--get location
				local position = v:LocalToWorld(v:OBBCenter())
					-- check location, if it is less than 65
					if position.z =< 65 then
						--inform player
						v:PrintMessage( HUD_PRINTCENTER, "You are entering mole territory; beware!" )
					end
				end
			end
		end
	end
end
-- calls function ever 4 seoncs
timer.Simple( 4, MoleDamage())