Working with queues

Like stacks, queues are collections of elements or objects of the same type. The length of any queue is variable just like a stack, meaning its size changes as elements are added or removed. However, queues follow the first-in-first-out (FIFO) model, meaning the first element in the queue is the first accessible element. You should note that queues can store null and duplicate values but can't be initialized with elements when they're created. The code in this section is for example purposes only, and is not included in our game.

A queue variable declaration needs to have the following:

• The Queue keyword, its element type between left and right arrow characters, and a unique name
• The new keyword to initialize the queue in memory, followed by the Queue keyword and element type between arrow characters
• A pair of parentheses capped off by a semicolon

In blueprint form, a queue looks as follows:

Queue<elementType...