Input action maps in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a new InputAction.

Unity

InputAction jumpAction = new InputAction(name: [1]);

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

A"Jump"

BJump

Cjump

D"jump"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put the name in quotes causes a syntax error.

Using a variable without declaration causes an error.

The InputAction constructor requires the name as a string, so it must be in quotes.

2fill in blank

medium

Complete the code to enable the input action.

Unity

jumpAction.[1]();

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

AEnable

BStart

CActivate

DRun

Attempts:

3 left

💡 Hint

Common Mistakes

Calling Start() or Run() instead of Enable() causes errors.

Forgetting to enable the action means input won't be detected.

To start listening for input, you must call Enable() on the InputAction.

3fill in blank

hard

Fix the error in the code to read the input value as a float.

Unity

float value = jumpAction.ReadValue<[1]>();

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

Aint

Bfloat

Cstring

Dbool

Attempts:

3 left

💡 Hint

Common Mistakes

Using int or bool causes runtime errors or wrong values.

Using string is invalid for input values.

The input value for actions like jump is a float, so ReadValue() is correct.

4fill in blank

hard

Fill both blanks to create an InputAction that triggers on pressing the space key.

Unity

InputAction jumpAction = new InputAction(name: "Jump", binding: [1]);
jumpAction.[2]();

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

A"<Keyboard>/space"

BEnable

CStart

D"<Mouse>/leftButton"

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong binding string like mouse button.

Calling Start() instead of Enable().

The binding string "/space" sets the space key, and Enable() activates the action.

5fill in blank

hard

Fill all three blanks to create an InputAction that reads a Vector2 from WASD keys and enables it.

Unity

InputAction moveAction = new InputAction(name: [1], binding: [2]);
Vector2 move = moveAction.ReadValue<[3]>();

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

A"Move"

B"2DVector"

CVector2

D"<Keyboard>/w"

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect binding strings or types.

Not matching the ReadValue type to the expected input.

The action is named "Move", uses the composite binding "2DVector", and reads a Vector2 value.