Instantiating a prefab and some of the scripts are not working that are attached

Question

I am trying to instantiate a prefab after a timer to create a wave spawning system for enemies. The problem is when I instantiate the prefab the enemy stats script works fine on it but then enemy AI script doesn't work and the prefabs sit there doing nothing. I looked up the issue and got a lot of people points towards using a prefab manager but I added one and the problem still persists.

 void SpawnEnemy (Transform _enemy)
 {
     Debug.Log("Spawing enemy: " + _enemy.name);

     Transform _sp = spawnpoints[Random.Range(0, spawnpoints.Length)];
     Instantiate(PrefabManager.Instance.EnemyPrefab, _sp.position, _sp.rotation);
 }

This is the code I'm using for spawning the enemy is there a better way of doing it that I'm mission out on?

Answer 1

Best Answer

Answer by TBruce · Apr 05, 2016 at 01:11 AM

@Ginjiruu Have you tried recreating the prefab? Did you happen to modify a game object in your scene that was created from the prefab but the modifications were never applied? After instantiating the prefab, is it enabled? After instantiating the prefab, is the AI script active? Is the AI script active on the prefab itself?

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Ginjiruu · Apr 05, 2016 at 05:51 PM 0

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Thank you very much for helping me out this fixed the problem of the enemies AI not working.However the enemies now are only running towards the origin of the scene and not updating to follow the player. Is this still to do with prefabs? If so thank you for the help and I'll close the question.

TBruce Ginjiruu · Apr 05, 2016 at 06:23 PM 0

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I am sorry but because I do not know what your AI script looks like I can not really answer that question. I can say however that the AI needs to continually do the following (say in Update or FixedUpdate): private GameObject player; void Start () { player = GameObject.FindGameObjectWithTag("Player").transform; }

 void Update ()
 {
     if (player)
     {
         // move enemy position closer to player position
         // the AI will need to take into account for anything blocking the player from the enemy (e.g walls)
     }
 }

Ginjiruu TBruce · Apr 05, 2016 at 08:38 PM 0

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I have to player search function and it works perfectly fine when the prefab is placed in the scene via the inspector but when I use an instantiate function the script draws the line to the origin and moves the enemies but doesn't update to follow the player only leading towards the origin. Thank you very much for the help you have given so far as it has already fixed one of my problems.

Harry_Drew · Nov 10, 2018 at 12:44 PM 0

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Thank you this really helped.

Instantiating a prefab and some of the scripts are not working that are attached

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