Attempting to make program wait before loading a new scene.

Unity Engine
1

Hello.
We are a small group at a school having to make a quick prototype of what is basically a menu, and so I’ve created this code.
However, since it immediately loads the next scene, the Audio that is supposed to play never gets the chance to.

Here is my code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class StartButton : MonoBehaviour {
public float TimeBetweenClicks = 0.3333f;
private float timestamp;

IEnumerator BeforeLoading(){
yield return new WaitForSeconds(0.3f);
}

// Update is called once per frame
void Update () {

}
void OnMouseOver () {
if (Time.time >= timestamp && (Input.GetKeyDown (KeyCode.Mouse0)) ){
this.GetComponent().Play();
print (“You started the game! Welcome!”);
BeforeLoading();
SceneManager.LoadScene(“HousePlan”);
}
}
}

the “If” statement with the timestamp is simply to keep the audio from playing a million time when the mouse button is held down.
I asked one of my teachers, but he had no time to look at it properly, and told me to write it like this before running off.

2

You’re almost there, but your BeforeLoading actually should be handled via StartCoroutine.

IEnumerator Loading() {
     yield return new WaitForSeconds(0.3f);
     SceneManager.LoadScene("HousePlan");
}

void OnMouseOver() {
    if (Time.time >= timestamp && (Input.GetKeyDown(KeyCode.Mouse0))) {
         this.GetComponent<AudioSource>().Play();
         print("You started the game! Welcome!");
         StartCoroutine(Loading);
   }
}

I’m not at my desk so not 100% I have it all correct, but that should be in the right direction.

1 Like
3

Thanks you for the answer byeasc!
I ended up simply changing the “onMouseOver” to “onMouseDown”, which meant I could drop the timestamps.

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

public class StartButton : MonoBehaviour {

    private float timer = 0f;
    public bool X = false;
    // Update is called once per frame
    void Update () {
        if (X == true){
            timer += Time.deltaTime;
        }
        if (timer >= 0.3f){
            SceneManager.LoadScene("HousePlan");
        }

        if (timer >= 1f){
            X = false;
        }

    }

        void OnMouseDown(){
            X = true;
            this.GetComponent<AudioSource>().Play();
            print ("You started the game! Welcome!");

    }
}

By making a bool, I could make it so a timer counted down. Further, I could have made the 0.3f:

if (timer >= 0.3f){
            SceneManager.LoadScene("HousePlan");
        }

here its own public float, so that it could be easily changed.
Of course, by doing this you have to be careful to stop the timer by turning the bool X back to false, or else it’d go on forever. I don’t think it matters in my case, as I am loading a new scene, though.