Tanks Unity Tutorial - Phase 4 Tank Health

最新推荐文章于 2025-05-08 10:51:58 发布

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本文介绍如何在Unity中实现坦克的生命值系统及死亡爆炸效果，包括使用Slider显示血量、粒子系统控制爆炸动画及声音播放等关键步骤。

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Youtube地址： https://www.youtube.com/watch?v=XRzGfRkZrNM

题外Tips：

Unity Editor中可以设置是 Pivot模式或者 Center 模式

Alt + click 视图里的GameObject，可展开所有子项。

实现效果：

Canvas 渲染模式选择 World Space，Rect 才可以调整，默认是不可以的。

Slider控制血量的显示，删除 Handle Slide Area，去掉Interactable的对勾，就可阻止用户修改血量，而只能显示。

TankExplosion uncheck Play On Awake，初始化的时候不执行该粒子效果

也可以使用 Object pooling 控制对象的初始化和回收

 m_ExplosionParticles = Instantiate(m_ExplosionPrefab).GetComponent<ParticleSystem>();
        m_ExplosionAudio = m_ExplosionParticles.GetComponent<AudioSource>();

        m_ExplosionParticles.gameObject.SetActive(false);

TankHealth.cs:

using UnityEngine;
using UnityEngine.UI;

public class TankHealth : MonoBehaviour
{
    public float m_StartingHealth = 100f;          
    public Slider m_Slider;                        
    public Image m_FillImage;                      
    public Color m_FullHealthColor = Color.green;  
    public Color m_ZeroHealthColor = Color.red;    
    public GameObject m_ExplosionPrefab;
    
    
    private AudioSource m_ExplosionAudio;          
    private ParticleSystem m_ExplosionParticles;   
    private float m_CurrentHealth;  
    private bool m_Dead;            


    private void Awake()
    {
        m_ExplosionParticles = Instantiate(m_ExplosionPrefab).GetComponent<ParticleSystem>();
        m_ExplosionAudio = m_ExplosionParticles.GetComponent<AudioSource>();

        m_ExplosionParticles.gameObject.SetActive(false);
    }


    private void OnEnable()
    {
        m_CurrentHealth = m_StartingHealth;
        m_Dead = false;

        SetHealthUI();
    }
   

    public void TakeDamage(float amount)
    {
        // Adjust the tank's current health, update the UI based on the new health and check whether or not the tank is dead.
        m_CurrentHealth -= amount;
        SetHealthUI();
        if (m_CurrentHealth <= 0f && !m_Dead){
            OnDeath();
        }

    }

    private void SetHealthUI()
    {
        // Adjust the value and colour of the slider.
        m_Slider.value = m_CurrentHealth;
        m_FillImage.color = Color.Lerp(m_ZeroHealthColor,m_FullHealthColor,m_CurrentHealth / m_StartingHealth);


    }


    private void OnDeath()
    {
        // Play the effects for the death of the tank and deactivate it.
        m_Dead = true;
        m_ExplosionParticles.transform.position = transform.position;
        m_ExplosionParticles.gameObject.SetActive(true);

        m_ExplosionParticles.Play();
        m_ExplosionAudio.Play();

        gameObject.SetActive(false);
    }
}