Adds a queue data structure.
Hello, there isn't much to say about it. It literally replicates the way Queues work as a data structure. I recommend you look at this page that explains it pretty well:
https://en.wikipedia.org/wiki/Queue_(abstract_data_type)
Basically, it's like a list, but instead of being able to add or remove data where you want, you can only add data to the back and remove and get data from the front. It's a simpler and more narrowed down version of an array, but it's really useful when you only need that type of data structure, and not a whole array.
For example, if you record a set of actions in your game, in order to replay it later, you can use a queue data structure. There are lots of applications for this.
got it thx :) .