// Use this for initialization
void Start()
{
Num = 2000;
minradius = 5f;
maxradius = 10f;
speed = 8f;
particle = new ParticleSystem.Particle[Num];
particleMes = new ParticleMes[Num];
particleSys = this.GetComponent <ParticleSystem>();
particleSys.maxParticles = Num;
particleSys.Emit(Num);
particleSys.GetParticles(particle);
for (int i = 0; i < Num; i++)
{
float midRadius = (minradius + maxradius) / 2;
float radiusrate = Random.Range(1.0f, midRadius / minradius);
float rate = Random.Range(midRadius / maxradius, 1.0f);
float radius = Random.Range(minradius * radiusrate, maxradius * rate);
float angle = Random.Range(0.0f, 360.0f);
float alpha = angle / 180 * Mathf.PI;
particleMes[i] = new ParticleMes(radius, angle);
particle[i].position = new Vector3(particleMes[i].radius * Mathf.Cos(alpha), 0f, particleMes[i].radius * Mathf.Sin(alpha));
}
particleSys.SetParticles(particle, Num);
}
public float speed; //速度
// Use this for initialization
void Start()
{
particleNum = 1000;
min = 6f;
max = 9f;
speed = 5f;
// 初始化粒子数组
particle = new ParticleSystem.Particle[particleNum];
particleMes = new ParticleMes[particleNum];
// 初始化粒子系统
particleSys = this.GetComponent <ParticleSystem>();
particleSys.startSpeed = 0; //粒子位置由程序控制
particleSys.startSize = 0.03f; //设置粒子大小
particleSys.loop = true; //不断循环
particleSys.maxParticles = particleNum; //设置粒子量
particleSys.Emit(particleNum); //发射粒子
particleSys.GetParticles(particle);
for (int i = 0; i < particleNum; ++i)
{
//粒子位置在内外径之内
float midRadius = (min + max) / 2;
float minRate = Random.Range(1.0f, midRadius / min);
float maxRate = Random.Range(midRadius / max, 1.0f);
float radius = Random.Range(min * minRate, max * maxRate);
//角度
float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;
particleMes[i] = new ParticleMes(radius, angle);
particle[i].position = new Vector3(particleMes[i].radius * Mathf.Cos(theta), 0f, particleMes[i].radius * Mathf.Sin(theta));
}
particleSys.SetParticles(particle, particleNum);
}