Sunday, October 13, 2013

Unity Waits, Delays, and Timers

This Unity Tutorial will show you 3 different methods to make a timer and be able to delay or wait between functions in your Unity3D scripts


Time Breakdown
  • 0:30 - Setting up our variable
  • 1:50 - Invoke method
  • 4:40 - IEnumerator method
  • 8:20 - Update method with Time.deltaTime
  • 11:40 - Outro, thanks for watching :D
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Check out the videos above to hear the explanation and see the code in action
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/*/
using UnityEngine;
using System.Collections;

public class WaitExamples : MonoBehaviour 
{
 private float timer = 1f;
 public int secs2Wait = 3;
 public int[] totalSec = new int[3];
 
 void Start () 
 {
  InvokeRepeating("TimerInvoke", 1, 1);
  StartCoroutine(TimerEnumerator());
 }
 
 void TimerInvoke()
 {
  if(totalSec[0] < secs2Wait)
   totalSec[0]++;
  else
   CancelInvoke("TimerInvoke");
 }
 
 IEnumerator TimerEnumerator()
 {
  for(int ii =0; ii < secs2Wait; ii++)
  {
   yield return new WaitForSeconds(1);
   totalSec[1]++;
  }
 }
 
 void Update () 
 {
  TimerUpdate();
 }
 
 void TimerUpdate()
 {
  if(totalSec[2] < secs2Wait)
  {
   if(timer > 0)
    timer -= Time.deltaTime;
   else if (timer <= 0)
   {
    totalSec[2]++;
    timer = 1f;
   }
  }
 }
}