如何在Unity3D中使用C＃進行延遲？

Question

我剛開始學習統一的c＃。我跟着一個教程，但我想補充一些東西。

using UnityEngine; 
using UnityEngine.UI; 
using System.Collections; 

public class PlayerController : MonoBehaviour { 

    public float speed; 
    public Text countText; 
    public Text winText; 

    private Rigidbody rb; 
    private int count; 

    void Start() 
    { 
     rb = GetComponent<Rigidbody>(); 
     count = 0; 
     SetCountText(); 
     winText.text = ""; 
    } 

    void FixedUpdate() 
    { 
     float moveHorizontal = Input.GetAxis ("Horizontal"); 
     float moveVertical = Input.GetAxis ("Vertical"); 

     Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical); 

     rb.AddForce (movement * speed); 
    } 

    void OnTriggerEnter(Collider other) 
    { 
     if (other.gameObject.CompareTag ("Pick Up")) 
     { 
      other.gameObject.SetActive (false); 
      count = count + 1; 
      SetCountText(); 
     } 
    } 

    void SetCountText() 
    { 
     countText.text = "Count: " + count.ToString(); 
     if (count >= 1) 
     { 
      winText.text = "You Win!"; 
      Application.LoadLevel(1); 
     } 
    } 

} 

我想在winText.text =「You Win！」之間做一個延遲。 和Application.LoadLevel（1）;所以你可以真正閱讀文本。我希望有人能幫助我！

Answer 1

使用協程（因爲我看到這是Unity3D代碼）：

void OnTriggerEnter(Collider other) 
    { 
     if (other.gameObject.CompareTag ("Pick Up")) 
     { 
      other.gameObject.SetActive (false); 
      count = count + 1; 
      StartCoroutine(SetCountText()); 
     } 
    } 

    IEnumerator SetCountText() 
    { 
     countText.text = "Count: " + count.ToString(); 
     if (count >= 1) 
     { 
      winText.text = "You Win!"; 
      yield return new WaitForSeconds(1f); 
      Application.LoadLevel(1); 
     } 
    } 

Answer 2

我可以假設它是一個Windows窗體應用程序，所以你最好不要使用Thread.Sleep，因爲它會阻塞UI線程。

相反，使用： System.Windows.Forms.Timer

Answer 3

在Unity等待通常與WaitForSeconds類的幫助下完成的。

在你的情況，你將不得不改變OnTriggerEnter和SetCountText一下，讓他們返回IEnumerable類型：

IEnumerable OnTriggerEnter(Collider other) 
{ 
    if (other.gameObject.CompareTag ("Pick Up")) 
    { 
     other.gameObject.SetActive (false); 
     count = count + 1; 
     yield return SetCountText(); 
    } 
} 

IEnumerable SetCountText() 
{ 
    countText.text = "Count: " + count.ToString(); 
    if (count >= 1) 
    { 
     winText.text = "You Win!"; 
     yield return new WaitForSeconds(5); // Wait for seconds before changing level 
     Application.LoadLevel(1); 
    } 
}