奇怪的 Instatiate 健康栏答案

【问题标题】：Weird Instatiate health bar奇怪的 Instatiate 健康栏
【发布时间】：2019-01-20 19:24:42
【问题描述】：

我正在尝试在我的单位上实例化生命条，问题是生命条在第一波单位的画布上反复实例化，而其他 2 波得到空画布。该脚本位于单元预制件上。我在单独的脚本中实例化单位和健康栏。我不明白我在这里做错了什么。

这是一个截图：

private Transform player;
private Image healthBar;
private Image barFilled;
public GameObject hpBarPrefab;

void Start()
{     
    minionExp = GetComponent<MinionExperience>();
    initialHealth = MaxHealth;
    healthBar = Instantiate(hpBarPrefab, 
    GameObject.FindObjectOfType<Canvas>().transform).GetComponent<Image>();
    barFilled = new List<Image>(healthBar.GetComponentsInChildren<Image>()).Find(img => img != healthBar);
}

public void TakePlayer(Transform pl0)
{
    player = pl0;
}

public Transform GetPlayer()
{
    return player;
}

public void MinionsTakeDmg(int dmg)
{
    MaxHealth -= dmg;
    if (MaxHealth <= 0)
    {
        Destroy(gameObject);
        MaxHealth = 0;
        if (player != null)
            player.GetComponent<Levels>().GainExp(minionExp.MaxMinionExp);
    }
    UpdateHealthBar();
}

public void UpdateHealthBar()
{
    float fa = MaxHealth / initialHealth;
    if (healthBar != null)
        healthBar.fillAmount = fa;
}

【问题讨论】：

标签： unity3d

【解决方案1】：

GameObject.FindObjectOfType<Canvas>() 搜索整个场景，请改用FindComponentInChildren 或transform.Find。

【讨论】：

好的 :) 谢谢。

【解决方案2】：

已修复。只需使用公共图像并将我的健康条图像拖到上面，现在效果很好:)

using UnityEngine.UI;
using UnityEngine;

public class RedMinionsHealth : MonoBehaviour
{
    public float RedMaxHealth = 10;
    private float RedinitialHealth;
    private MinionExperience minionExp;
    private Transform player;
    public Image RedhealthBar;

    void Start()
    {
        minionExp = GetComponent<MinionExperience>();
        RedinitialHealth = RedMaxHealth;
    }

    public void TakePlayer(Transform pl0)
    {
        player = pl0;
    }

    public void MinionsTakeDmg(int dmg)
    {
        RedinitialHealth -= dmg;
        if (RedinitialHealth <= 0)
        {
            Destroy(gameObject);
            RedMaxHealth = 0;
            GetComponent<BulletTieToPlayer>();
            if (player != null)
                player.GetComponent<Levels>().GainExp(minionExp.MaxMinionExp);
        }
        UpdateHealthBar();
    }

    public void UpdateHealthBar()
    {
        float fac = RedinitialHealth / RedMaxHealth;
        if (RedhealthBar != null)
            RedhealthBar.fillAmount = fac;
    }
}

【讨论】：