Destroying an object in sequence with button press.

Question

Hey, Im trying to figure out how to destroy 3 cubes in sequence with a button press. Cubes 1,2,3.... the 3rd cube can't be destroyed until 2 is destroyed, and 2 can't be destroyed until 1 is destroyed. So far I have

using UnityEngine; using System.Collections;

  public class Hit : MonoBehaviour {

      public GameObject cube1;

  public GameObject cube2;

  public GameObject cube3;

      void Start ()

      void Update ()

          if (Input.touchCount >0)

              RaycastHit hit;

              Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(0).position);

              if (Physics.Raycast(ray, out hit))

                  if (hit.collider.gameObject.tag =="new")

                  Destroy(cube1);

                            Destroy(cube2);

                            Destroy(cube3);

I would drag the cube to be destroyed into the script but when I press the button they would all get destroyed.I'm fairly new at this so a push in the right direction would greatly help...thanks

Answer 1

You need to wait a little after each destroy, I'm guessing that's the effect you are after. Something like this should work:

 void Update () 
     {
         if (Input.touchCount >0) 
         {
             RaycastHit hit;
             Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(0).position);
             if (Physics.Raycast(ray, out hit))
                 if (hit.collider.gameObject.tag =="new")
             {
                 DestroyCubes(new List<GameObject>(){cube1, cube2, cube3});
             }       
         }
     } 
 
  IEnumerator DestroyCubes(List<GameObject> cubesToDestroy) 
  {
     foreach(var cubeToDestroy in cubesToDestroy)
     {
         Destroy(cubeToDestroy);
         yield return new WaitForSeconds(1);
     }
  }

Just be sure to add your cubes to the list sent as parameter in the order you want them destroyed. Also, be sure to add a bool that tells you if the game is in the process of destroying the cubes, so you don't call the coroutine multiple times.

Destroying an object in sequence with button press.

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