Using a switch statement to move a character

Questions & Answers
1

Hi folks,

I’m trying to make the NPC in my game move by using a switch statement, however it’s not working.

First, I use a function to pick a number from 0 to 3 then I use the switch statement:

void Start()
    {

       int randomNumber = Random.Range(0, 3);

        switch (randomNumber)
        {
            case 0:// the npc moves towards
                targetPosition.y = 1.4f;
                targetPosition.x = this.transform.position.x;
                targetPosition.z = this.transform.position.z - 3;
                this.transform.position = Vector3.MoveTowards(transform.position, targetPosition, velocity * Time.deltaTime);
                break;

            case 1://the npc moves back
                targetPosition.y = 1.4f;
                targetPosition.x = this.transform.position.x;
                targetPosition.z = this.transform.position.z + 3;
                this.transform.position = Vector3.MoveTowards(transform.position, targetPosition, velocity * Time.deltaTime);
                break;

            case 2://the npc moves right
                targetPosition.y = 1.4f;
                targetPosition.x = this.transform.position.x - 3;
                targetPosition.z = this.transform.position.z;
                this.transform.position = Vector3.MoveTowards(transform.position, targetPosition, velocity * Time.deltaTime);
                break;

            case 3://the npc moves left
                targetPosition.y = 1.4f;
                targetPosition.x = this.transform.position.x + 3;
                targetPosition.z = this.transform.position.z;
                this.transform.position = Vector3.MoveTowards(transform.position, targetPosition, velocity * Time.deltaTime);
                break;

            default: break;
        }
    }

The number is generated, but the NPC doesn’t move. What am I doing wrong here?

2

Start() is called when a behavior is initialized (but after Awake() and OnEnable()).

If you want to update positions, etc. then put it in Update().