Should I Use Multi-threading in Game Development, and What is `Collections.synchronizedSet(...)`?

Avoid Multi-threading

It's not necessary to use multi-threading unless your game requires it. If you're not sure, it's best to avoid it.

Use Key Bindings

Key bindings are a better option than key listeners for handling multiple inputs because they:

• Work separately from other processes
• Don't require window focus (unlike key listeners)

What is Collections.synchronizedSet(...)?

This code creates a synchronized set, which is a thread-safe implementation of the Set interface. It ensures that the set can be accessed by multiple threads concurrently without data corruption.

In this context, it's used to store the keys that are currently pressed to prevent conflicts between concurrent input events (key presses).

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