How to create a loop level?

Questions & Answers
1

Hi guys,
I want to randomly instantiate a prefab under a particular game object with specific rotation. For more details I have 12 level prefabs on a circle segment model. I want to instantiate these prefabs randomly with rotation 0, 90(y-axis), 180(y-axis), 270(y-axis) when player touches a trigger. So the entire level will change the prefabs clockwise and a loop will be created. But I don’t know how exactly I can do it. Any help will be much appreciated. Thank you.

2

// when the player hits the trigger

var rot : Quaternion;

switch( Random.Range( 0, 4 ) )
{
	case 0 :
		rot = Quaternion.Euler( 0, 0, 0 );
	break;
	
	case 1 :
		rot = Quaternion.Euler( 0, 90, 0 );
	break;
	
	case 2 :
		rot = Quaternion.Euler( 0, 180, 0 );
	break;
	
	case 3 :
		rot = Quaternion.Euler( 0, 270, 0 );
	break;
}

object.rotation = rot;
3

Finally I got it working. I have placed four trigger on the road end position and instantiated prefab randomly when player touches the trigger and destroy the previous one. For that a loop circle level has been created what I wanted.

using UnityEngine;
using System.Collections;

public class LevelChange : MonoBehaviour {

	public int randomChange;
	
	private int startLevel = 0;
	private int endLevel = 11;
	public Transform s1;
	public Transform s2;
	public Transform s3;
	public Transform s4;
	
	public GameObject[] level_prefab = new GameObject[12];
	
	
	void Start() {
		
NotificationCenter.DefaultCenter.AddObserver(this, "TriggerA");
		NotificationCenter.DefaultCenter.AddObserver(this, "TriggerB");
		NotificationCenter.DefaultCenter.AddObserver(this, "TriggerC");
		NotificationCenter.DefaultCenter.AddObserver(this, "TriggerD");
		
		s1 = GameObject.Find("S1").transform; //0-degree
		s2 = GameObject.Find("S2").transform; //90-degree
		s3 = GameObject.Find("S3").transform; //180-degree
		s4 = GameObject.Find("S4").transform; //270-degree
		
		GameObject l1 = Instantiate(level_prefab[startLevel], s1.transform.position, s1.transform.rotation) as GameObject;
		l1.transform.parent = s1.transform;
		
		GameObject l4 = Instantiate(level_prefab[endLevel], s4.transform.position, s4.transform.rotation) as GameObject;
		l4.transform.parent = s4.transform;
	}
	
	void Update() {
		
		randomChange = Random.Range(0,12);
		//Debug.Log(randomChange);
	}
	
	public void TriggerA() {
		
		GameObject l2 = Instantiate(level_prefab[randomChange], s2.transform.position, s2.transform.rotation) as GameObject;
		l2.transform.parent = s2.transform;
		
		foreach(Transform child in s4) {
				
			Destroy(child.gameObject);
		}
	}
	
	public void TriggerB() {
		
		GameObject l3 = Instantiate(level_prefab[randomChange], s3.transform.position, s3.transform.rotation) as GameObject;
		l3.transform.parent = s3.transform;
		
		foreach(Transform child in s1) {
				
			Destroy(child.gameObject);
		}
		
	}
	
	public void TriggerC() {
		
		GameObject l4 = Instantiate(level_prefab[randomChange], s4.transform.position, s4.transform.rotation) as GameObject;
		l4.transform.parent = s4.transform;
		
		foreach(Transform child in s2) {
				
			Destroy(child.gameObject);
		}
		
		
	}
	
	public void TriggerD() {
		
		GameObject l1 = Instantiate(level_prefab[randomChange], s1.transform.position, s1.transform.rotation) as GameObject;
		l1.transform.parent = s1.transform;
		
		foreach(Transform child in s3) {
				
			Destroy(child.gameObject);
		}
		
	} 	
		
}