problem with FindWithTag

Questions & Answers
1

Hello everyone I need some help. For you will be easy to fix but I’m trying in every possible way not accomplish much. What I want to do are these Christmas balls that fall from the top tray to random (and up to far so good) also these balls (made ​​up of 3 components: 1 ball and 2 hooks) change color every second and I have to click with your mouse over the red ball to gain points. At first I made ​​two scripts: the first script was connected to the chamber and was used to instantiate objects. The second script was used to change color at random and was linked to item 1 of the ball (the ball). I found myself in trouble, however, to pass the array of textures in the main room. I finished the idea in this way:

var speed : int = 2;
var chrismasBall : GameObject; //GameObject
var instanza; //instanza
var texBall : Texture = new Texture [5]; //Array di texture

function Start () {

StartCoroutine(Creation(1)); //Coroutine

var finds = GameObject.Find(“snow_ball”); // trova tag e assegno a finds
Debug.Log(finds); // stampo l’oggetto in console

instanza.GetComponent(main).textureRandom();

}

function Update () {
Physics.gravity = Vector3(0, -0.05, 0); // aggiungo gravità

}

function Creation(tempo){

      while(true){


  
   instanza = Instantiate (chrismasBall, transform.position, Quaternion.identity); //instanza chrismasBall
 
  
  
 instanza.AddComponent(Rigidbody); //aggiungo rigidbody alle instanze
 
  
  instanza.transform.position.x = Random.Range(2,-2); //raggio di instanza
  instanza.transform.position.y = 2; 
  instanza.transform.position.z = 0.2; //distanza dalla Main Camera
  instanza.transform.Translate(0, Time.deltaTime, 0); 
  
  yield WaitForSeconds(tempo);

}

}

function textureRandom(){

while(true){

yield WaitForSeconds(1); //aspetto 1 secondo e cambio colore alla mesh

var randomtex; // variabile randomColor

randomtex = texBall[Random.Range(0, texBall.length)]; //random della variabile cambiaColore

renderer.material.mainTexture= randomtex; // lo assegno alla variabile randomColor

}
}

But me error on line 15 saying:

Object reference not set to an instance of an object

Someone is kind enough to help me? thank you

3

ciao @Neurological come posso contattarti? non trovo l’opzione per i messaggi privati =)

2

Which line give you the problem, var chrismasBall : GameObject;? In the title you put FindWithTag, but I can’t see it in the code anywhere.

By the way, try to format the question a little better, the whole code is not very readable. On this line:

var finds = GameObject.Find(“snow_ball”); // trova tag e assegno a finds Debug.Log(finds);

This way doesn’t find the tag, but only the object name in the scene, for the tag you have to search with FindWithTag, like you put in your question title.