3rd Time Running Path Finder, crashes

[ccarterc]

Tried with and without diagonal option defined and same result. When I run the pathfinder method it works twice returning expected results in an array. When I run it for a third time, it returns an empty object. Strange. http://jsfiddle.net/ccarterc1984/5ABHL/

[qiao]

In your code, the gridBackup is dirty when the findThePath function is called for the second time. So the subsequent calls to findThePath will not return the correct answer.

To correct it, you should make a clone of the grid every time before the pathfinding. See Line 17 of my modified version: http://jsfiddle.net/UYyQM/1/

[ccarterc]

Oh excellent! I don't know why that works, but it does. Much thanks to
you for the help. :) You've offered up a great script.

On Wed, May 22, 2013 at 6:05 PM, Xueqiao Xu notifications@github.comwrote:

In your code, the gridBackup is dirty when the findThePath function is
called for the second time. So the subsequent calls to findThePath will
not return the correct answer.

To correct it, you should make a clone of the grid every time before
the pathfinding. See Line 17 of my modified version:
http://jsfiddle.net/UYyQM/1/

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