2D Game Development Engine 2

Question 1

In a 2D game engine, what does the 'game loop' primarily coordinate each frame?

Accepted Answer

Updating game state and rendering output

Answer

The game loop repeatedly processes input, updates game state, and renders each frame.

Question 2

What is the main advantage of a fixed timestep over a variable timestep for physics updates?

Accepted Answer

Deterministic, stable simulation

Answer

A fixed timestep keeps physics deterministic and stable regardless of frame rate fluctuations.

Question 3

Which engine subsystem is responsible for drawing sprites to the screen?

Accepted Answer

The renderer

Answer

The renderer handles converting sprite and scene data into pixels on screen.

Question 4

What does 'delta time' represent in a game engine?

Accepted Answer

Time elapsed since the last frame

Answer

Delta time is the elapsed time between frames, used to make movement frame-rate independent.

Question 5

In an entity-component system (ECS), what holds the actual data for behavior like position?

Accepted Answer

Components

Answer

Components store data such as position, while systems operate on that data.

2D Game Development Practice Test