Thu, 08 Nov 2018 07:15:22 +0300 implement basic land bordering
alfadur [Thu, 08 Nov 2018 07:15:22 +0300] rev 14170
implement basic land bordering
(0) -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 tip