If looks could kill

We got this far. We might as well try to kill Ethan (haha!). Here are the specifications for this new feature:

• Looking at Ethan hits him with our line-of-sight raygun
• Sparks are emitted when the gun hits its target
• After 3 seconds of being hit, Ethan is killed
• When he's killed, Ethan explodes (we get a point) and then he respawns at a new location

The KillTarget script

This time, we'll attach the script to a new empty GameController object by performing the following steps:

1. Create an empty game object and name it GameController.
2. Attach a new C# script to it, using Add Component, named KillTarget.
3. Open the script in MonoDevelop.

Here's the completed KillTarget.cs script:

using UnityEngine; 
using System.Collections; 
 
public class KillTarget : MonoBehaviour { 
  public GameObject target; 
  public ParticleSystem hitEffect; 
  public GameObject killEffect; 
  public float timeToSelect = 3.0f; 
  public int score; 
 
  private float countDown; 
 
  void Start () { 
    score = 0;...