Pick nearest value index inside an array

I am currently working on a Megaman X-type game, with multiple weapons, each having its energy gauge;

When you get an energy pick-up, and your weapon energy is already full, it picks the weapon in the list that has the lower energy quantity and recharge this one instead;

Until then I used objects by checking which one has its variable the nearest to 0, but I wanted to know if there is a way to do the same by comparing values in an array, and retain the X index of the cell that contains the nearest value to 0?

Thank you for your time ~

Iterate through the array while tracking What index has the lowest value and what that value is.

IE:

index: 0 - 1 - 2 - 3

Value: 4 - 2 - 5 - 1

0 = 4 - automatically the lowest, its the only other

1 = 2 if 2 < 4 set 1 lowest - true

2 = 5 if 5 <2 set 2 lowest - false

3 = 1 if 1 < 2 set 3 lowest - true

add value to index 3

Sidenote:

if you want to have different requirements for weapons (Different Clip sizes) you should set each value with the % full instead of the number of bullets.

3 rockets where you can hold 4 = 75% full.

4 minigun bullets where you can hold 100 = 4% full.

Choose minigun.

Thanks for that method, but I found how to adapt winstreak logic for the engine needs;

Thank you both for helping!