erlang角色寻路bresenham算法

假设场景网格如下数字代表的是坐标11代表的是x1,y146代表的是x4,y6 11,12,13,14,15,16,17,18,19 21,22,23,24,25,26,27,28,29 33,32,33,34,35,36,37,38,39 41,42,43,44,45,46,47,48,49 51,52,53,54,55,56,57,58,59 61,62,63,64,55,66,67,68,69 71,72,73,74,75,76,77,78,79 81,8