碰撞后触发定时器

Question

我正在尝试制作在与其中一个角色发生碰撞后触发计时器的游戏。我努力为此编写正确的代码。这是我拥有的：

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

public class Timer : MonoBehaviour
{
  public GameObject textDisplay;
  public int secondsLeft = 30;
  public bool takingAway = false;

void OnTriggerEnter(Collider other) instead of Start?
{
 if (other.CompareTag("Player"))
 {
textDisplay.GetComponent<Text>().text = "00:" + secondsLeft = true;
 }

void Start(){
  textDisplay.GetComponent<Text>().text = "00:" + secondsLeft;
}

void Update()
{
  if (takingAway == false && secondsLeft > 0)
  {
    StartCoroutine(TimerTake());
  }
}

IEnumerator TimerTake()
{
  takingAway = true;
  yield return new WaitForSeconds(1);
  secondsLeft -= 1;
  textDisplay.GetComponent<Text>().text = "00:" + secondsLeft;
  takingAway = false;
}

}

Answer 1

听起来你正在尝试的是：

每秒减少一秒
如果玩家发生碰撞停止计时器

我可能会这样做

public class Timer : MonoBehaviour
{
    // directly give your field the correct type
    public Text textDisplay;
    public int secondsLeft = 30;

    // Optionally add some events to be invoked 
    // these are like the onClick of Buttons

    // This event is invoked when the player didn't reach in time
    public UnityEvent whenTimedOut;
    // This event is invoked when the player stopped the timer
    public UnityEvent whenStoppedByPlayer;

    // If return type is IEnumerator Unity runs Start 
    // automatically as Coroutine
    private IEnumerator Start()
    {   
        while(secondsLeft > 0)
        {
            textDisplay.text = "00:" + secondsLeft;
            yield return new WaitForSeconds(1);
            secondsLeft --;     
        }

        textDisplay.text = "00:" + secondsLeft;
        whenTimedOut.Invoke();
    }

    void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("Player"))
        {
            // by disabling this component also the Coroutine is stoppepd
            enabled = false;
            textDisplay.text = "00:" + secondsLeft;
  
            whenStoppedByPlayer.Invoke();
        }
    }
}

或者您是否试图在玩家触发计时器后 启动它？在这种情况下，您可以直接运行这也作为协程，例如

private IEnumerator OnTriggerEnter(Collider other) { if (!other.CompareTag("Player")) yield break; while(secondsLeft > 0) { textDisplay.text = "00:" + secondsLeft; yield return new WaitForSeconds (1); secondsLeft--; } textDisplay.text = "00:" + secondsLeft; whenTimedOut.Invoke(); }

碰撞后触发定时器

Trigger timer after collision

c#

3d

unity3d