我正在努力使玩游戏的人可以在触发器中按他们想要的次数按“E” | Unity 3d + 动画师

Question

我正在开发这个我一直在制作的 Unity 3D 游戏，玩家可以点击随机按钮（不要问为什么）。 在这个游戏中，我做了一个玩家可以输入一个触发器，然后按下E来触发一次动画，同时点击它，效果非常好。 但唯一的问题是“播放器”只能使动画触发一次，而必须离开触发器并重新进入它才能使动画触发并在按下E时再次工作。

我的目标是让动画在单击时始终有效，而不是仅在触发器中每次都按住E。

这是我制作的按钮的代码。

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

public class Fixedpress : MonoBehaviour
{
    public Animator Tributton;

    private Coroutine routine;

    private void OnTriggerEnter(Collider other)
    {
        // in general rather use CompareTag instead of ==
        // it is slightly faster and also shows an error if the tag doesn't exist instead of failing silent
        if (!other.CompareTag("Player")) return;

        // just in case to prevent concurrent routines
        if (routine != null) StopCoroutine(routine);

        // start a new Coroutine
        routine = StartCoroutine(WaitForKeyPress());
    }

    private IEnumerator WaitForKeyPress()
    {
        // check each FRAME if the key goes down
        // This is way more reliable as OnTriggerStay which is called
        // in the physics loop and might skip some frames
        // This also prevents from holding E while entering the trigger, it needs to go newly down 
        yield return new WaitUntil(() => Input.GetKeyDown(KeyCode.E));

        // set the trigger once and finish the routine
        // There is no way to trigger twice except exit the trigger and enter again now
        Tributton.SetTrigger("Fiveyon");
        Debug.Log("Fiveyon!");

        // If you even want to prevent this from getting triggered ever again simply add
        enabled = false;
        // Now this can only be triggered ONCE for the entire lifecycle of this component 
        // (except you enable it from the outside again of course)
    }

    void OnTriggerExit(Collider other)
    {
        if (!other.CompareTag("Player")) return;

        // when exiting the trigger stop the routine so later button press is not handled
        if (routine != null) StopCoroutine(routine);
    }
}

Answer 1

无需在 onTriggerEnter 中启动协程，只需在玩家进入触发器时将 bool 设置为 true，并使用该 bool 作为条件检索 Update 中的输入。 PS：您还可以添加一个冷却计时器，以便玩家无法在触发器内发送E。 例子：

bool canAnimate;

private void OnTriggerEnter(Collider other)
{
    // in general rather use CompareTag instead of ==
    // it is slightly faster and also shows an error if the tag doesn't exist instead of failing silent
    if (!other.CompareTag("Player")) return;

    // just in case to prevent concurrent routines
    if (routine != null) StopCoroutine(routine);

    canAnimate = true;
}

private void Update()
{
if (Input.GetKeyDown(KeyCode.E) && canAnimate)
 {
         Tributton.SetTrigger("Fiveyon");

 }
}

void OnTriggerExit(Collider other)
{
    if (!other.CompareTag("Player")) return;

    // when exiting the trigger stop the routine so later button press is not handled
    if (routine != null) StopCoroutine(routine);
 canAnimate = false;
}

PS：我相信会有更好的方法来实现这一点。 让我知道它是否有帮助:)

Answer 2

你需要

OnTriggerStay()

您可以参考Unity 文档了解更多详细信息。