Unity Scripting and C# Flashcards

What is the base class for all Unity scripts that attach to GameObjects?

Answer: MonoBehaviour

MonoBehaviour is the base class for Unity component scripts, providing lifecycle methods like Start(), Update(), and OnEnable().

In Unity C#, what is a Coroutine used for?

Answer: Pausing execution and resuming it over multiple frames without blocking the main thread

Coroutines use IEnumerator and yield return statements to spread execution across multiple frames while remaining on the main thread.

What does the [SerializeField] attribute do in Unity?

Answer: Makes a field visible in the Inspector even if it is private

[SerializeField] exposes a private field in the Unity Inspector without changing its access modifier, maintaining encapsulation.

Which Unity event function is called exactly once when a script's GameObject first becomes active?

Answer: Start()

Start() is called once before the first frame Update() if the script component is enabled, making it ideal for initialization that depends on other objects being ready.

What is the purpose of the 'static' keyword on a Unity C# field?

Answer: It makes the field shared across all instances of the class rather than per-instance

A static field belongs to the class itself rather than any individual instance, so all scripts share the same value regardless of how many exist.

In Unity, what does Object.Destroy() do when passed a GameObject?

Answer: Schedules the GameObject for removal at the end of the current frame

Destroy() schedules the object for deletion at the end of the current frame, so it remains accessible during the rest of the current frame's execution.