Question by Kaleopix · Jan 22, 2017 at 12:18 AM · instantiate spawn tag destroygameobject multiple objects

Spawn and destroy gameObject by tag

I'm trying to make a function where a game object is destroyed and its position is used to spawn another game object. For details, my game have robots with multiple states of completion (from state0 to state3). Each state will enter an activator that is used to spawn the next state of completion as well as destroy the previous state(state0 enter activator, state1 is spawned, state0 is destroyed). The activator reads the game object's tag to verify whether it is the right state or not. The activator uses the previous state's position for the spawn position of the next position. The activator also only spawns and destroy when a key is pushed. Here is my code:`using UnityEngine; using System.Collections;

public class StateTransistorActivator : MonoBehaviour {

 public KeyCode key;
 bool active = false;
 public GameObject initialState;
 public GameObject transitionState;
 GameObject robot;

 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {

     if(Input.GetKeyDown(key) && active)
     {
         Instantiate(transitionState, robot.transform.position, Quaternion.identity);
         Destroy(robot);
     }
 
 }

 void OnTriggerEnter2D(Collider2D col)
 {
     
     active = true;
     
     if (col.gameObject.tag == initialState.gameObject.tag)
     {
         Debug.Log("state0 is true");
         robot = col.gameObject;
     }

 }

 void OnTriggerExit2D(Collider2D col)
 {
     active = false;
 }

The initialState variable is for the previous state game object which is used to compare the game object tag and the transitionState is used spawn the next state's game object.

This code works, but the problem I'm having is that i could not get it to work for multiple game objects of the same state. Basically if I have 2 game objects of the same state (clones of it) the activator only works for one of them, and I needed it to work in case for multiple similar game objects exists.

Here's some pictures alt text