如何在不同的时间只调用一次不同的方法？

Question

我正在尝试使用 Actions 和 Events、Inumerators 和 Coroutines，但我感到很困惑。

目标：让 MoveCubes() 达到运行一次，持续 3 秒，然后让 LerpSine() 达到运行一次，持续 3 秒。

CountdownTimer.cs 正在跟踪秒数。然后 SkinnedMeshSpawn.cs 与之交互。

倒计时：

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

public class CountdownTimer : MonoBehaviour
{
    float currentTime = 0f;
    float startingTime = 10f;
    public static event Action RaiseReady;
    public static event Action RaiseReady2;
    public SkinnedMeshSpawn SkinnedMeshSpawn;

    void Start()
    {
        currentTime = startingTime;     
        StartCoroutine(UpdateCoroutine());
    }

    IEnumerator UpdateCoroutine()
    {
        while (true)
        {
            SkinnedMeshSpawn.GetComponent<SkinnedMeshSpawn>().MoveCubes();
            currentTime -= 1 * Time.deltaTime; //does it each frame
            int n = Convert.ToInt32(currentTime);

            if (n == 7)
            {
                RaiseReady?.Invoke();
                RaiseReady = null; // clean the event
                yield break; // Kills the coroutine
            }
            yield return new WaitForFixedUpdate();
        }
    }

    IEnumerator UpdateCoroutine2()
    {
        while (true)
        {
            SkinnedMeshSpawn.GetComponent<SkinnedMeshSpawn>().LerpSine();
            currentTime -= 1 * Time.deltaTime; //does it each frame
            int n = Convert.ToInt32(currentTime);

            if (n == 4)
            {
                RaiseReady2?.Invoke();
                RaiseReady2 = null; // clean the event
                yield break; // Kills the coroutine

            }
            yield return new WaitForFixedUpdate();
        }
    }
}

SkinnedMeshSpawn:

using UnityEngine;

[RequireComponent(typeof(SkinnedMeshRenderer))]
public class SkinnedMeshSpawn : MonoBehaviour
{
    public GameObject CubePrefab;
    public GameObject[] objects;
    SkinnedMesh mesh;
    public Rigidbody cubePrefabRb;

    public Vector3[] verts;

    int runOnce = 1;

    void Awake()
    {
        mesh = GetComponent<SkinnedMesh>();
        verts = new Vector3[mesh.vertexCount];
    }
    void Start()
    {
        verts = mesh.vertices;

        CountdownTimer.RaiseReady += CountdownTimer_RaiseReady;
        CountdownTimer.RaiseReady2 += CountdownTimer_RaiseReady2;

        mesh.OnResultsReady += DrawVertices;
    }
    void CountdownTimer_RaiseReady()
    {
        Debug.Log("Done");
        CountdownTimer.RaiseReady -= CountdownTimer_RaiseReady; // Remove listener though the other class is already clearing it
    }

    private void CountdownTimer_RaiseReady2()
    {
        Debug.Log("Done2");
        CountdownTimer.RaiseReady2 -= CountdownTimer_RaiseReady; // Remove listener though the other class is already clearing it
    }

    void DrawVertices(SkinnedMesh mesh)
    {
        if (runOnce == 1)
        {
            for (int i = 0; i < mesh.vertexCount; i++)
            {
                Vector3 position = verts[i];
                var cubeClone = Instantiate(CubePrefab, position, transform.rotation);
                cubeClone.tag = "CubePFInst";
            }
            runOnce = 0;
        }
    }


    public void MoveCubes()
    {
        if (runOnce == 0)
        {
            objects = GameObject.FindGameObjectsWithTag("CubePFInst");

            for (int i = 0; i < mesh.vertexCount; i++)
            {
                Vector3 position = verts[i];
                cubePrefabRb = objects[i].GetComponent<Rigidbody>();
                cubePrefabRb.MovePosition(Vector3.Lerp(position, position, Time.deltaTime * 6));
            }
        }
    }

    public void LerpSine()
    {
        Debug.Log("LerpSine");
    }
}

到目前为止，我能完成的最多的事情是调用 UpdateCoroutine2 并将 Done2 打印到日志，但是 LerpSine 被重复打印，就好像我'在每次帧更新时启动协程。

如果有人可以查看代码并就如何实现上述目标提出建议，我将不胜感激。后来我想实现一个 GameManager 但这已经变得非常复杂了。

Answer 1

在这里使用事件确实使您想要做的事情变得过于复杂。

我会用yield return new WaitForSeconds(seconds);来计时：

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

public class CountdownTimer : MonoBehaviour
{

    public SkinnedMeshSpawn SkinnedMeshSpawn;

    void Start()
    { 
        StartCoroutine(FunctionCaller(3f,3f));
    }

    IEnumerator FunctionCaller(float pause1, float pause2)
    {
        SkinnedMeshSpawn.GetComponent<SkinnedMeshSpawn>().MoveCubes();

        yield return new WaitForSeconds(pause1);

        SkinnedMeshSpawn.GetComponent<SkinnedMeshSpawn>().LerpSine();

        yield return new WaitForSeconds(pause2);

        // Do whatever after pause 2
    }
}

如何在不同的时间只调用一次不同的方法？

How to call different methods only once, at different times?

c#

events

action

coroutine

unity3d