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1Check out Dijkstra's algorithm, (en.wikipedia.org/wiki/Dijkstra%27s_algorithm) as well as this question. It should help you on your way. stackoverflow.com/questions/430142/…– roberrrt-sCommented Aug 31, 2016 at 18:12
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2The A* algorithm would also be applicable here. But note that Dijkstra and AStar only have a better asymptotic complexity than some other options. For example, for a 8x8 grid, a simple Breadth-first-search is likely to be faster in practice (also because it is simpler to implement). The performance advantages of Dijkstra may show up for larger grids, maybe 20x20 or so (depending on many factors - consider profiling them for the real application case!)– Marco13Commented Sep 1, 2016 at 9:25
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