Assign random text to enemies

Question

I'm trying to create a falling word game (code here). I want the words to be assigned to 3 enemies that spawn from the top of the screen and fall down to the bottom. Here is the enemy script:

public class Enemy : MonoBehaviour {

public float fallSpeed = 1.0f;    

void Update () {
    transform.Translate(0, -fallSpeed * Time.deltaTime, 0);
    }
}

Here is the word spawner:

public class WordSpawner : MonoBehaviour {

public GameObject wordPrefab;
public GameObject enemy;
public Transform wordCanvas;

public WordDisplay SpawnWord()
{

    Vector3 randomPosition = new Vector3(UnityEngine.Random.Range(-2.0f, 2.0f), 7.0f, 0);
    GameObject wordObj = Instantiate(wordPrefab, randomPosition, Quaternion.identity, wordCanvas);
    WordDisplay wordDisplay = wordObj.GetComponent<WordDisplay>();
    return wordDisplay;
  }     
}

This is the word timer:

public class Wordimer : MonoBehaviour {

public WordManager wordManager;
public float delay = 1.5f;
private float nextWord = 0f;

void Update()
{
    if (Time.time >= nextWord)
    {
        wordManager.AddWord();
        nextWord = Time.time + delay;
        delay *= 0.95f;
       }
    }
}

The AddWord() method in the above script is what generates the word randomly from a list of words. Here is the add word method (this method is in a separate file):

public void AddWord()
{
    WordDisplay wordDisplay = wordSpawner1.SpawnWord();

    Word word = new Word(WordGenerator.GetRandomWord(), wordDisplay);

    words.Add(word); 
}

So what I would like for the words to be spawned along with the enemy game objects. Right now they spawn on their own. How can I achieve this functionality?

Edit

This is the script that spawns the enemy:

public GameObject enemy;
public float spawnTime = 3.0f;
public Transform[] spawnPoints;    

void Start () {
    InvokeRepeating("Spawn", spawnTime, spawnTime);
}

void Spawn()
{               
    int spawnPointIndex = Random.Range(0, spawnPoints.Length);        
    Instantiate(enemy, spawnPoints[spawnPointIndex].position, spawnPoints[spawnPointIndex].rotation);
}

Answer 1

If I understand your question correctly what you are trying to achieve is spawning the WordDisplay and keep it "next to" the according enemy object, the reference you already have in WordSpawner.

You could assign it to a certain Enemy and let the enemy update the position like

public class Enemy : MonoBehaviour 
{
    public float fallSpeed = 1.0f;    

    public WordDisplay assosiatedDisplay;

    // optional for always showing the text e.g. 10 cm above enemies
    public Vector3 offset = new Vector3(0, 0.1f, 0);

    void Update () 
    {
        transform.Translate(0, -fallSpeed * Time.deltaTime, 0);

        if(assosiatedDisplay)
        {
            // keep the referenced wordDisplay positioned relative to this object
            assosiatedDisplay.transform.position = transform.position + offset;
        }
    }
}

And than set that associatedDisplay value when you spawn the WordDisplay

public class WordSpawner : MonoBehaviour 
{
    public GameObject wordPrefab;
    public GameObject enemy;
    public Transform wordCanvas;

    public WordDisplay SpawnWord()
    {
        GameObject wordObj = Instantiate(wordPrefab, enemy.transform.position * new Vector3(1, 1, 0), Quaternion.identity, wordCanvas);
        WordDisplay wordDisplay = wordObj.GetComponent<WordDisplay>();

        // assign it to the enemy
        enemy.GetComponent<Enemy>().assosiatedDisplay = wordDisplay;

        return wordDisplay;
   }     
}

---

Update

I don't see in your question and have no clue where all your methods are called. But you would store the according enemy reference the same way when you instantiate your enemy objects:

var enemy = Instantiate(enemy, spawnPoints[spawnPointIndex].position, spawnPoints[spawnPointIndex].rotation);

and later pass that enemy reference to the public WordDisplay SpawnWord() e.g.

public WordDisplay SpawnWord(Enemy enemy)
{
    // ...

    // assign it to the enemy
    enemy.assosiatedDisplay = wordDisplay;
}