Unity 中的牢不可破的循环，不知道如何修复。导致 Unity 崩溃

Question

我正在尝试创建一个统一的“组合”系统，但我创建了一个我难以理解的牢不可破的循环。我尝试过使用 while 循环并且遇到了这个问题，所以也想尝试一下 for 循环，但我得到了相同的结果。

连击系统的工作方式是，当玩家进入有敌人的条件时，他们可以输入控制器上的一连串按钮来触发连击。如果玩家输入了正确的组合，就会应用效果。到目前为止，我只担心让组合系统工作。

我为组合创建了一个预定义的字符数组，然后我将来自播放器的输入与该数组进行比较。

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

public class ComboSystem : MonoBehaviour
{
    public char currentButton;
    public char[] combo_arr = { 'A', 'A', 'B', 'B', 'X' };

    PlayerLockOnSystem plos;

    private void Start()
    {
        plos = GetComponent<PlayerLockOnSystem>();
    }

    private void Update()
    {
        if (plos.lockedOn)
        {
            Combo();
        }
    }

    void DetectComboButtons()
    {
        if (Input.GetButton("Joystick A"))
        {
            currentButton = 'A';
        }

        if (Input.GetButton("Joystick X"))
        {
            currentButton = 'X';
        }

        if (Input.GetButton("Joystick B"))
        {
            currentButton = 'B';
        }


    }

    void Combo()
    {



        for (int i = 0; i < combo_arr.Length; i++)
        {
            DetectComboButtons();

            if (currentButton == combo_arr[i])
            {

                Debug.Log("Correct: " + currentButton);
            }
            else
            {
                i = 0;
                Debug.Log("Incorrect");
            }
        }






    }




}

当触发 Combo() 方法时，Unity 崩溃，我必须强制关闭编辑器。

Answer 1

您需要在不同的更新调用中检查帧之间的输入。试试这个：

private const char CHAR_THAT_MEANS_THAT_THE_PLAYER_DIDNT_BREAK_THE_CHAIN = '0';//doesnt matter

private int _currentPlaceInTheComboChain = 0;

private void Update()
{
    if (plos.lockedOn)
    {
        Combo();
    }
}

char DetectComboButtons()
{
    if (Input.GetButtonDown("Joystick A"))
    {
        return 'A';
    }

    if (Input.GetButtonDown("Joystick X"))
    {
        return 'X';
    }

    if (Input.GetButtonDown("Joystick B"))
    {
        return 'B';
    }
 return CHAR_THAT_MEANS_THAT_THE_PLAYER_DIDNT_BREAK_THE_CHAIN;


}

void Combo()
{
    char currentButton = DetectComboButtons();
    if (currentButton == CHAR_THAT_MEANS_THAT_THE_PLAYER_DIDNT_BREAK_THE_CHAIN) 
    {
       return; //the player didn't continue the combo but didn't break it (yet)
    } 

    if (currentButton == combo_arr[_currentPlaceInTheComboChain])
    {
       _currentPlaceInTheComboChain++;//wait for the next button, will only be checked the next time update is called
       Debug.Log("Correct: " + currentButton);
       if (_currentPlaceInTheComboChain == combo_arr.Length) { //this was the last button in the combo
           _currentPlaceInTheComboChain = 0; //for a new combo
           Debug.Log("Combo completed");
       }
    } else {
      _currentPlaceInTheComboChain = 0; //player broke the chain
      Debug.Log("Incorrect " + currentButton);
    }

}