-- Function to be called every 4 seconds
function MoleDamage()
    -- Gets all players
    local players = player.GetAll()
    -- If no players, don't bother.
    if table.Count(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
                local position = v:LocalToWorld(v:OBBCenter())
                    -- Check location,  if it is less than 65
                    if position.z =< 65 then
                         --Take 5 damage
                         v:TakeDamage(5)
                         -- Inform player
                         v:PrintMessage( HUD_PRINTCENTER, "You are suffocating! Get back underground!" )
                    elseif v:Health() != v:GetMaxHealth() then
                        -- Heal 5 damage
                        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 every 4 seconds
timer.Simple( 4, MoleDamage())