Weighted Random Sample

The implementation of this technique allows for the random selection of items with varying probabilities based on their assigned weights, e.g. loot boxes, or skill selection system similar to Vampire Survivors, where you have more chances to receive upgrade for an already obtained skill rather than a new random one.

https://gist.github.com/Nox7atra/3611b5dc0ccd45906010987b694bd43a

#weighted #random