Asset bundles and optimization in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to load an asset bundle from a file path.

Unity

AssetBundle bundle = AssetBundle.LoadFromFile([1]);

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ALoadFromMemory

BmyBundle

C"Assets/Bundles/mybundle"

DLoadAsset

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a variable name without quotes instead of a string path.

Using a method name instead of a file path.

The LoadFromFile method requires the file path as a string to load the asset bundle.

2fill in blank

medium

Complete the code to load an asset named "player" from the asset bundle.

Unity

GameObject player = bundle.[1]<GameObject>("player");

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ALoadAsset

BGetAsset

CFindAsset

DLoadFromFile

Attempts:

3 left

💡 Hint

Common Mistakes

Using GetAsset which does not exist.

Using LoadFromFile which loads bundles, not assets.

The LoadAsset method loads an asset by name and type from the bundle.

3fill in blank

hard

Fix the error in unloading the asset bundle but keep loaded assets usable.

Unity

bundle.[1](false);

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ADispose

BUnload

CClose

DRelease

Attempts:

3 left

💡 Hint

Common Mistakes

Using Dispose which is not a method on AssetBundle.

Using Unload(true) which unloads assets too.

The Unload(false) method unloads the bundle but keeps loaded assets in memory.

4fill in blank

hard

Fill both blanks to create a dictionary of asset names and their sizes from an asset bundle.

Unity

Dictionary<string, long> assetSizes = new Dictionary<string, long>() {
    { [1], bundle.GetAssetSize([2]) }
};

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A"player"

B"enemy"

Attempts:

3 left

💡 Hint

Common Mistakes

Using different asset names for key and size lookup.

Not using quotes around asset names.

The dictionary key is the asset name string, and the value is the size from GetAssetSize using the same asset name.

5fill in blank

hard

Fill all three blanks to load an asset bundle asynchronously and get an asset named "tree".

Unity

var request = AssetBundle.LoadFromFileAsync([1]);
request.completed += (asyncOp) => {
    var bundle = request.[2];
    GameObject tree = bundle.[3]<GameObject>("tree");
};

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A"Assets/Bundles/environment"

BassetBundle

CLoadAsset

Dbundle

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong property name instead of assetBundle.

Using LoadFromFile instead of LoadFromFileAsync.

Not using quotes around the file path.

The async load needs the file path string, then access the loaded bundle via assetBundle, then load the asset with LoadAsset.