Question

I have two two-dimensional arrays, and this line of code:

openListParents[compWith] = openList[olID];

Does it work? Yes. However, openListParents[compWith] becomes openList[olID], but I want openListParents[compWith] to be the value of openList[olID]. This is what I get when I press CTRL+ALT+V:

Variable _level0.openListParents = [object #13, class 'Array'] [
0:[object #14, class 'Array'] [
  0:4,
  1:4
],
1:[object #7, class 'Array'],
2:[object #15, class 'Array'] [
  0:3,
  1:3
]

]

This is because openList might change, and I want the value of that openListParents in the array to be the value of the openList at the time when the code is run.

Thanks for any help

Answer 1

the problem is it is being passed by reference.
what you want is a copy of the array not a reference to the array.

a quick way to do that in AS3 is to do an empty concat on the array and it will return a copy of itself with nothing added

array2 = array1.concat()
//array2 now has a copy of array1