title: Using a switch statement to move a character
body: <p>I'm trying to make the NPC in my game move by using a switch statement, however it's not working.</p>
  
  <p>First, I use a function to pick a number from 0 to 3 then I use the switch statement:</p>
  
  <pre><code>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;
          }
      }
  </code></pre>
  
  <p>The number is generated, but the NPC doesn't move. What am I doing wrong here?</p>