Timer Spawn Freezing Unity C#

Questions & Answers
1

Whenever I run the code to spawn my asteroids after a certain amount of seconds at predefined locations, Unity always freezes on me! I don’t know what is wrong with the code, there is no errors, it just waits for the 4 seconds and then freezes. Help!

using UnityEngine;
using System.Collections;

public class Spawner : MonoBehaviour {

	private PlayerLevel level;
	public float timer = 1f;
	public float secondsToWait= 4f;
	public float totalSeconds;

	public Transform[] spawn;
	public GameObject asteriod;

	void Start () {
		level = GameObject.FindGameObjectWithTag ("Player").GetComponent<PlayerLevel> ();
	}
	
	void Update (){
		int spawnNumber = Random.Range (0, 1);
			if (totalSeconds <= secondsToWait) {
				if (timer > 0) {
					timer -= Time.deltaTime;
				} 
				else if (timer <= 0) {
					totalSeconds++;
					timer = 1f;
				while (level.level >= 1) {
					if (totalSeconds == 4f) { 
						Instantiate (asteriod, spawn [spawnNumber].position, spawn [spawnNumber].rotation);
						secondsToWait = 4f;
						}
					}
				while (level.level >= 5) {
					if (totalSeconds == 2f) { 
						Instantiate (asteriod, spawn [spawnNumber].position, spawn [spawnNumber].rotation);
						secondsToWait = 2f;
						}
					}
				while (level.level >= 10) {
					if (totalSeconds == 1f) { 
						Instantiate (asteriod, spawn [spawnNumber].position, spawn [spawnNumber].rotation);
						secondsToWait = 1f;
						}
					}
			while (level.level >= 15) {
				if (totalSeconds == 0.5f) { 
					Instantiate (asteriod, spawn [spawnNumber].position, spawn [spawnNumber].rotation);
					secondsToWait = 0.5f;
					}
				}
			}
		}
	}
}

Thanks in Advance,

Nick

2

Change your ‘while’ loops to ‘if’ conditions.
Should fix it.