calcH method

int calcH(
  1. DFTilePosition end,
  2. DFTilePosition coord
)

计算H的估值：“曼哈顿”法，坐标分别取差值相加

Implementation

int calcH(DFTilePosition end, DFTilePosition coord) {
  return ((end.x - coord.x).abs() + (end.y - coord.y).abs()) * DIRECT_VALUE;
}