koobas.hobune.stream
Custom sorting function - need help
Hi, I'm trying to sort an array of intergers that looks somewhat like this:
[-650,-750,-820,-960,-460,-660,-990,0,0,0,0]
This is my sorting function:
function compare(a,b){
return a-b;
}
I want it to put the highest number on top, but the zeros on the bottom of the array. Does anyone know how I can get it to do that?
Use a smarter Compare function:
function compare(a: int,b: int)
{
if (a == b) return 0;
if (a == 0) return +1;
if (b == 0) return -1;
// otherwise compare normally
return a-b;
}
And then sort the list. You will have to use the list from the System.Collection.Generic namespace. You cannot use the Unity-Array class, as it lacks a customizable sort operation.
List<int> yourlist;
yourlist.Sort(Compare);
I've never tried a list-array (or whatever you call it), but I'll give it a try. Thanks!
Hey, umm.. I hate to say, but it didn't work. I use javascript and it's complaining about the + sign. Wow.. I was just writing tons of code with no problems until I hit this. This sorting thing is confusing.
Still working with it though.. I took out that plus sign and the syntax errors went away.. I still can't make heads or tails on it though. Lots of debugging at this stage and have no idea how to use the list functions. :( Doesn't mean I can't learn..
Wow! Works excellent! Does exactly what I wanted. Thank you!
List<int> list = new List();
// add numbers
list.Sort(); // sorts ascending - this is what you need I guess
list.Reverse(); // now descending
Cheers, Keld
But that would leave the zeros at the top. I just want the zeros to stick at the bottom regardless of their value.
ok... wasn't sure how you wanted it sorted. You then also need the custom sort function as $$anonymous$$ suggests.
