Get the same GetKey multiple times for flipping different prefab clones

Questions & Answers
1

I’m trying to do a simple flipping card game where i need to get the key of “1” to flip the number 1 card. However i got multiple number 1 prefab and i need them to flip in order.
using UnityEngine;
using System.Collections;

public class CardsController : MonoBehaviour {

	public int prefabID;
	public AudioSource audio;


	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update ()
	{
		if(Input.GetKeyDown("1") && prefab = 1 )
			{

				audio = GetComponent<AudioSource>();
				audio.Play ();
				GetComponent<Animation>().Play("Flip_hideDuplicate");
				StartCoroutine("Remove");
				
				if(Input.GetKeyDown("1") && prefab = 2 )
				{

					audio = GetComponent<AudioSource>();
					audio.Play ();
					GetComponent<Animation>().Play("Flip_hideDuplicate");
					StartCoroutine("Remove");

				}
			}	
	}

	IEnumerator Remove()
	{
		yield return new WaitForSeconds (0.75f);
		Destroy (gameObject);
	}
}

It only works for the first getKey. I understand that maybe because its in update function, therefore its too fast for it to get the second getKey. But is there any other method to achieve what i want?
I am still new to Unity and thanks in advance.

2

You can try to do something like this (assuming your prefab ids start at 1 and increment by 1):

public class CardsController : MonoBehaviour {
	
	public int prefabID;
	public AudioSource audio;	
	
	// Use this for initialization
	void Start () {
		
	}
	
	// Update is called once per frame
	void Update ()
	{
		if(Input.GetKeyDown(KeyCode.Alpha1))
		{			
			audio = GetComponent<AudioSource>();
			audio.Play ();
			GetComponent<Animation>().Play("Flip_hideDuplicate");
			StartCoroutine("Remove");
		}    
	}
	
	IEnumerator Remove()
	{
		yield return new WaitForSeconds (prefabID * 0.75f);
		Destroy (gameObject);
	}
}

What it does: once the key is pressed, each of the object will start time-delayed self-destruction co-routine with delay corresponding to this object’s number.