c# - A* how to calculate G cost

Question

I read this article: http://www.policyalmanac.org/games/aStarTutorial.htm, but i don't understand how is calculated G cost. I know those child's on corner of his parent have bigger score but there is probably another calculation to check distance from current to start node.

Please help.

Answer 1

在文章中，
如果你水平或垂直移动，G=10，如果你
从一个正方形到另一个正方形对角线移动，G=14。

因此，如果您从起始格G = 0+10
水平移动，最初 G 为 0。然后从那里垂直或水平移动意味着G=10+10
，如果对角线表示G=10+14