Question

我有以下脚本，我无法转换为新的统一类。这个脚本写于6 - 7年前，现在无法使用。

它引发了Particle[]课程的错误，因为它现在是ParticleSystem.Particle[]＆＃39;

我只是设计师，无法将此行转换为新系统。任何帮助将不胜感激。

using UnityEngine;

public class LightningBolt : MonoBehaviour
{
    public Transform target;
    public int zigs = 100;
    public float speed = 1f;
    public float scale = 1f;
    public Light startLight;
    public Light endLight;

    Perlin noise;
    float oneOverZigs;

    private Particle[] particles;

    void Start()
    {
        oneOverZigs = 1f / (float)zigs;
        particleEmitter.emit = false;

        particleEmitter.Emit(zigs);
        particles = particleEmitter.particles;
    }

    void Update ()
    {
        if (noise == null)
            noise = new Perlin();

        float timex = Time.time * speed * 0.1365143f;
        float timey = Time.time * speed * 1.21688f;
        float timez = Time.time * speed * 2.5564f;

        for (int i=0; i < particles.Length; i++)
        {
            Vector3 position = Vector3.Lerp(transform.position, target.position, oneOverZigs * (float)i);
            Vector3 offset = new Vector3(noise.Noise(timex + position.x, timex + position.y, timex + position.z),
                                        noise.Noise(timey + position.x, timey + position.y, timey + position.z),
                                        noise.Noise(timez + position.x, timez + position.y, timez + position.z));
            position += (offset * scale * ((float)i * oneOverZigs));

            particles[i].position = position;
            particles[i].color = Color.white;
            particles[i].energy = 1f;
        }

        particleEmitter.particles = particles;

        if (particleEmitter.particleCount >= 2)
        {
            if (startLight)
                startLight.transform.position = particles[0].position;
            if (endLight)
                endLight.transform.position = particles[particles.Length - 1].position;
        }
    }   
}

Answer 1

替换

particles[i].energy = 1f;

与

particles[i].remainingLifetime = 1f;

Answer 2

由于此代码最初是由Unity提供的，因此我认为应该会出现一个可用的版本。

这是我转换后的脚本，似乎可以正常工作。

using UnityEngine;
using System.Collections;
using LibNoise.Generator;

[RequireComponent(typeof(ParticleSystem))]
public class LightningBolt : MonoBehaviour
{
    public Transform target;
    public Vector3 targetOffset;
    public int zigs = 100;
    public float speed = 1f;
    public Vector3 speedMultiplier = new Vector3(0.1365143f, 1.21688f, 2.5564f);
    public float scale = 1f;
    public float lifetime = 0;
    private Perlin noise;
    private float oneOverZigs;

    ParticleSystem m_System;
    ParticleSystem.Particle[] m_Particles;

    private void LateUpdate()
    {
        if (lifetime > 0)
        {
            lifetime -= Time.deltaTime;
        }
        if (target == null || lifetime < 0)
        {
            Destroy(gameObject);
            return;
        }

        InitializeIfNeeded();

        // GetParticles is allocation free because we reuse the m_Particles buffer between updates
        int numParticlesAlive = m_System.GetParticles(m_Particles);

        float timex = Time.time * speed * speedMultiplier.x;
        float timey = Time.time * speed * speedMultiplier.y;
        float timez = Time.time * speed * speedMultiplier.z;

        // Change only the particles that are alive
        for (int i = 0; i < numParticlesAlive; i++)
        {
            Vector3 position = Vector3.Lerp(transform.position, target.TransformPoint(targetOffset), oneOverZigs * (float)i);
            Vector3 offset = new Vector3((float)noise.GetValue(timex + position.x, timex + position.y, timex + position.z),
                                         (float)noise.GetValue(timey + position.x, timey + position.y, timey + position.z),
                                         (float)noise.GetValue(timez + position.x, timez + position.y, timez + position.z));
            position += (offset * scale * ((float)i * oneOverZigs));

            m_Particles[i].position = position;
            m_Particles[i].color = new Color(1, 1, 1, Mathf.Clamp01(lifetime * 10));
            m_Particles[i].remainingLifetime = 1f;
        }

        // Apply the particle changes to the Particle System
        m_System.SetParticles(m_Particles, numParticlesAlive);
    }

    void InitializeIfNeeded()
    {
        if (noise == null)
        {
            noise = new Perlin();
            oneOverZigs = 1f / (float)zigs;
        }

        if (m_System == null)
        {
            m_System = GetComponent<ParticleSystem>();
            m_System.Emit(zigs);
        }

        if (m_Particles == null || m_Particles.Length < m_System.main.maxParticles)
        {
            m_Particles = new ParticleSystem.Particle[m_System.main.maxParticles];
        }
    }
}

粒子能量＆＃39;无法再设置

2 个答案: