重新加载声音没有在正确的时间播放

Question

在这个重新加载脚本中，枪重新加载，然后播放重装声音。问题是，重新加载应该首先播放。另一个问题是，我想摆脱周围的工作，我做的重新加载的关键工作。当我按下“重装”键时，他们之所以让Ammo =0，是因为在我添加弹药时，弹药不会重置为8，我只是不明白为什么当我重新加载声音时，直到延迟结束后才会播放。谢谢你抽出时间阅读这篇文章。

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

public class Reload : MonoBehaviour
{
    //amount of bullets in the mag
    public static int Ammo;
    private float timer = 0.0f;
    public float reloadTime = 3.0f;
    //calls upon a command in a diffrent script that cancels the ablity to shoot
    public PauseManager reload;
    //plays the audio
    public AudioSource reloadfx;


    Text text;


    void Awake ()
    {
        reloadfx = GetComponent <AudioSource> ();
        text = GetComponent <Text> ();
        Ammo = 8;
    }


    void Update ()
    {
        //I used this line as a underhanded way of allowing the Reload key to reload the pistol.\
        //This is also my work around.
        if (Input.GetButtonDown ("Reload") && Ammo < 8) 
        {
            Ammo = 0;
        }
        //IF Ammo is 0 or I press the reload and i am not full of ammo then reload
        if (Ammo == 0 || Input.GetButtonDown ("Reload") && Ammo < 8) 
        {
            //plays the sound
            reloadfx.Play ();
            ReloadAction ();
        }
        else 
        {
            //enable the ablity to shoot
            reload.shoot = true;
        }
        //display the ammunition
        text.text = Ammo + "/8";
    }

    public void ReloadAction()
    {
        //for as long as the timer is smaller then the reload time
        if (timer < reloadTime) 
        {
            //disable the abillity to shoot
            reload.shoot = false;
            //count the time
            timer += Time.deltaTime;
        } 
        else 
        {
            //after the reload reset the timer and ammo count
            Ammo = 8;
            timer = 0.0f;
        }
    }
}

Answer 1

发生这种情况的直接原因是，对于正在重新加载的每一个帧，都会调用reloadfx.Play ();。这意味着它一遍又一遍地重新启动，直到你的重新加载完成，它才能完整地播放。

但是，造成这种情况的根本原因是如何围绕重新加载逻辑构建条件。我的建议是，只要有一个标志，实际上表明你的枪是重新装填，而不是间接信号通过Ammo == 0。当Input.GetButtonDown ("Reload")发生且重新加载的条件正确时，播放重新加载声音并将标志设置为true。然后，在重新加载完成后，将标志设置为false。

有许多方法可以改变这种情况，但我觉得对您的方法做一个非常简单的重写：

private bool isReloading = false;

void Update ()
{
    if (!isReloading)
    {
        // When ammo has depleted or player forces a reload
        if (Ammo == 0 || (Input.GetButtonDown ("Reload") && Ammo < 8))
        {
            // Play sound once, signal reloading to begin, and disable shooting
            reloadfx.Play ();
            isReloading = true;
            reload.shoot = false;
        }
    }
    else
    {
        // isReloading will be the opposite of whether the reload is finished
        isReloading = !ReloadAction();
        if (!isReloading)
        {
            // Once reloading is done, enable shooting
            reload.shoot = true;
        }
    }
    text.text = Ammo + "/8";
}

// Performs reload action, then returns whether reloading is complete
public bool ReloadAction()
{
    //for as long as the timer is smaller then the reload time
    if (timer < reloadTime) 
    {
        timer += Time.deltaTime;
    }
    else
    {
        //after the reload reset the timer and ammo count
        Ammo = 8;
        timer = 0.0f;

        return true;
    }

    return false;
}

希望这能有所帮助！如果你有任何问题，请告诉我。