Waypoint systems in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a list of waypoints.

Unity

public List<Transform> [1];

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

Awaypoints

Bpoints

Ctargets

Dnodes

Attempts:

3 left

💡 Hint

Common Mistakes

Using a singular name for a list

Using unrelated variable names

The list of waypoints is commonly named waypoints to clearly represent the points the object will move through.

2fill in blank

medium

Complete the code to move the object towards the current waypoint.

Unity

transform.position = Vector3.MoveTowards(transform.position, [1].position, speed * Time.deltaTime);

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

AnextPoint

Btarget

Cwaypoints[currentIndex]

Ddestination

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable not defined

Using just the list name without index

The object moves towards the position of the current waypoint, accessed by waypoints[currentIndex].

3fill in blank

hard

Fix the error in the code that checks if the object reached the waypoint.

Unity

if (Vector3.Distance(transform.position, [1].position) < 0.1f) { currentIndex++; }

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

Awaypoints[currentIndex + 1]

Bwaypoints[currentIndex]

Cwaypoints[0]

Dwaypoints[lastIndex]

Attempts:

3 left

💡 Hint

Common Mistakes

Using an index out of range

Using the wrong waypoint index

The distance should be checked against the current waypoint, which is waypoints[currentIndex].

4fill in blank

hard

Fill both blanks to loop the waypoint index correctly.

Unity

if (currentIndex >= [1].Count) { currentIndex = [2]; }

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

Awaypoints

B0

C1

DwaypointList

Attempts:

3 left

💡 Hint

Common Mistakes

Resetting to 1 instead of 0

Using wrong list name

When the index reaches the count of waypoints, reset it to 0 to loop back to the first waypoint.

5fill in blank

hard

Fill all three blanks to create a dictionary mapping waypoint names to their positions if the position's x is greater than 0.

Unity

var waypointDict = new Dictionary<string, Vector3>() { { [1], [2] } for int i = 0; i < waypoints.Count; i++ if (waypoints[i].position.x [3] 0) };

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

Awaypoints[i].name

Bwaypoints[i].position

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using position as key

Using wrong comparison operator

Using wrong variable

The dictionary keys are waypoint names, values are positions, and the condition checks if x is greater than 0.