2D Game Development Engine 3

Question 1

What is a sprite atlas (texture atlas) used for in a 2D engine?

Accepted Answer

Packing many images into one texture to reduce draw calls

Answer

Storing audio clips

Answer

Saving player progress

Answer

Defining collision rules

Question 2

Which technique batches many sprites into a single draw call?

Accepted Answer

Sprite batching

Answer

Mip-mapping

Answer

Ray casting

Answer

Tessellation

Question 3

In a tile-based 2D engine, what is a tilemap?

Accepted Answer

A grid of indexed tiles forming a level

Answer

A list of audio events

Answer

A shader program

Answer

A physics solver

Question 4

What is the benefit of object pooling in a 2D engine?

Accepted Answer

Reusing objects to reduce allocation and garbage collection

Answer

Increasing screen resolution

Answer

Encrypting network traffic

Answer

Compressing textures

Question 5

What does a camera component typically control in a 2D engine?

Accepted Answer

The viewport's position, zoom, and what is visible

Answer

The audio volume

Answer

The save file format

Answer

The frame rate cap

Question 6

Which coordinate concept lets a sprite move correctly relative to its parent in a scene graph?

Accepted Answer

Local vs world transforms

Answer

Screen DPI scaling

Answer

Audio panning

Answer

Texture filtering

Question 7

What is culling in the context of 2D rendering?

Accepted Answer

Skipping off-screen objects to save rendering work

Answer

Adding extra lighting

Answer

Doubling sprite size

Answer

Generating collision meshes