Formula needed: Sort array to array-"snaked"
- by aw
After the you guys helped me out so gracefully last time, here is another tricky array sorter for you.
I have the following array:
a = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]
I use it for some visual stuff and render it like this:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
Now I want to sort the array to have a "snake" later:
// rearrange the array according to this schema
1 2 3 4
12 13 14 5
11 16 15 6
10 9 8 7
// the original array should look like this
a = [1,2,3,4,12,13,14,5,11,16,15,6,10,9,8,7]
Now I'm looking for a smart formula / smart loop to do that
ticker = 0;
rows = 4; // can be n
cols = 4; // can be n
originalArray = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16];
newArray = [];
while(ticker < originalArray.length)
{
//do the magic here
ticker++;
}
Thanks again for the help.
