Why 3D expands game possibilities in Unity - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a 3D cube in Unity.

Unity

GameObject cube = GameObject.CreatePrimitive([1]);

Drag options to blanks, or click blank then click option'

ACubeType

BPrimitiveType.Cube

C3DObject.Cube

DGameObject.Cube

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-existent type like CubeType or GameObject.Cube.

Confusing 3D object creation with 2D sprites.

In Unity, to create a 3D cube, you use PrimitiveType.Cube with CreatePrimitive.

2fill in blank

medium

Complete the code to move the 3D object forward in Unity.

Unity

transform.Translate(Vector3.[1] * speed * Time.deltaTime);

Drag options to blanks, or click blank then click option'

Aup

Bleft

Cright

Dforward

Attempts:

3 left

💡 Hint

Common Mistakes

Using Vector3.up moves the object vertically, not forward.

Using Vector3.right moves sideways.

To move an object forward in 3D space, use Vector3.forward.

3fill in blank

hard

Fix the error in the code to rotate the 3D object around the y-axis.

Unity

transform.Rotate(0, [1], 0);

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A100 * Time.deltaTime

BTime.deltaTime * 100

CTime.deltaTime + 100

D100 + Time.deltaTime

Attempts:

3 left

💡 Hint

Common Mistakes

Adding deltaTime instead of multiplying causes incorrect rotation speed.

Using the wrong order can confuse but does not cause error.

Multiplying rotation speed by Time.deltaTime ensures smooth rotation over time.

4fill in blank

hard

Fill both blanks to create a dictionary mapping 3D object names to their positions if x position is greater than 0.

Unity

var positions = objects.Where(obj => obj.transform.position.x [2] 0).ToDictionary(obj => [1], obj => obj.transform.position);

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Aobj.name

B>

C<

Dobj.position

Attempts:

3 left

💡 Hint

Common Mistakes

Using obj.position instead of obj.transform.position.

Using less than symbol instead of greater than.

Use obj.name as the key and check if x position is greater than 0 with >.

5fill in blank

hard

Fill all three blanks to create a dictionary of object names in uppercase mapped to their y positions if y is less than 5.

Unity

var lowObjects = objects.Where(obj => obj.transform.position.y [3] 5).ToDictionary(obj => [1], obj => [2]);

Drag options to blanks, or click blank then click option'

Aobj.name.ToUpper()

Bobj.transform.position.y

C<

Dobj.position.y

Attempts:

3 left

💡 Hint

Common Mistakes

Using obj.position.y instead of obj.transform.position.y.

Using greater than symbol instead of less than.

Use obj.name.ToUpper() for uppercase names, obj.transform.position.y for y position, and < to check if y is less than 5.