Animating our three-dimensional enemies

Here's a really easy, quick animation with the script for your enemies. Currently, the enemies just move up and down in a wave pattern. However, the units themselves remain static.

Let's give our enemies a bit of extra life with some code:

1. In the Project window, go to Assets/Resources/Prefab/Enemies.
2. Expand the content of the enemy_wave prefab and select the enemy_wave_ring child game object.
3. In the Inspector window, click on the Add Component button.

4. Click on New Script at the bottom of the dropdown.
5. Name the new C# script BasicEnemyRotate.
6. Then, enter this code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class BasicEnemyRotate : MonoBehaviour 
{
 [SerializeField]
 float speed = 0;

void Update ()
  {
   transform.Rotate(Vector3.left*Time.deltaTime*speed)
  }
}

...