Using List to instantiate an Object

Questions & Answers
1

This code creates circle of gameobjects with 3 holes in ( object are not instantiated in these 3 places ).
I want to instantiate another gameobject in places where only holes are. How to do that? This is the code:

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Walls3 : MonoBehaviour {

	public GameObject prefab;
	public int numberOfObjects = 20;
	public float radius = 5f;

	List<int> FindHoles(int totalSegments, int holeCount) {
		List<int> holes = new List<int>();
		for (int i = 0; i < totalSegments; i++) {
			holes.Add(i);
		}
		while (holes.Count > holeCount) {
			holes.RemoveAt (Random.Range (0,holes.Count));
		}
		return holes;
	}

	void Start () {
		List<int> holes = FindHoles(numberOfObjects, 3);
		
		for (int i = 0; i < numberOfObjects; i++) {
			float angle = i * Mathf.PI * 2 / numberOfObjects;
			Vector3 pos = new Vector3 (Mathf.Cos (angle), 0, Mathf.Sin (angle)) * radius;
			
			if (!holes.Contains(i)) {
				GameObject Wally = Instantiate (prefab, pos, Quaternion.LookRotation(-pos)) as GameObject;
				Wally.gameObject.tag = "Wallpart";
				Wally.transform.parent = transform;
	
			}
		}
	}
	
	// Update is called once per frame
	void Update () {
	
	}
}
2

At line 29 you have a block of code that instantiates one prefab for each position not in the holes list:

         if (!holes.Contains(i)) {
             GameObject Wally = Instantiate (prefab, pos, Quaternion.LookRotation(-pos)) as GameObject;
             Wally.gameObject.tag = "Wallpart";
             Wally.transform.parent = transform;
         }

Add an else condition after that, with another block of code for what to instantiate if it is in the list:

         else {
             GameObject SomethingElse = Instantiate (otherPrefab, pos, Quaternion.LookRotation(-pos)) as GameObject;
             ...
         }