void RandomlySpread()
{
// 初始化各粒子位置
// 随机每个粒子距离中心的半径，同时希望粒子集中在平均半径附近
for (int i = 0; i < pCount; ++i)
{
float midRadius = (maxRadius + minRadius) / 2;
float minRate = Random.Range(1.0f, midRadius / minRadius);
float maxRate = Random.Range(midRadius / maxRadius, 1.0f);
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
// 随机每个粒子的角度
float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;
// 随机每个粒子的游离起始时间
float time = Random.Range(0.0f, 360.0f);
circle[i] = new CirclePosition(radius, angle, time);
before[i] = radius;
after[i] = 0.7f * radius;
if (after[i] < minRadius * 1.1f)
{
after[i] = Random.Range(Random.Range(minRadius, midRadius), (minRadius * 1.1f));
}
particleArr[i].position = new Vector3(circle[i].radius * Mathf.Cos(theta), 0f, circle[i].radius * Mathf.Sin(theta));
}
particleSys.SetParticles(particleArr, particleArr.Length);
}
void Start()
{
particlesArray = new ParticleSystem.Particle[count];
circles = new CirclePosition[count];
particleSystem = gameObject.GetComponent <ParticleSystem>();
particleSystem.maxParticles = count;
particleSystem.startSize = size;
particleSystem.Emit(count);
particleSystem.GetParticles(particlesArray);
float midRadius = (maxRadius + minRadius) / 2;
float minRate = Random.Range(1.0f, midRadius / minRadius);
float maxRate = Random.Range(midRadius / maxRadius, 1.0f);
for (int i = 0; i < count; i++)
{
//设置半径
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
//设置角度
float angle = (float)i / count * 360f;
float theta = angle / 180 * Mathf.PI;
//保存粒子初位置
circles[i] = new CirclePosition(radius, angle, (float)i / count * 360f, radius);
//设置粒子初位置
particlesArray[i].position = new Vector3(radius * Mathf.Cos(theta), radius * Mathf.Sin(theta), 0);
}
particleSystem.SetParticles(particlesArray, particlesArray.Length);
}
void Start()
{
particleAngle = new float[particleNum];
particleR = new float[particleNum];
before = new float[particleNum];
after = new float[particleNum];
particles = new ParticleSystem.Particle[particleNum];
particleSystem.maxParticles = particleNum;
particleSystem.Emit(particleNum);
particleSystem.GetParticles(particles);
CirclePosition cp = new CirclePosition();
// 每个粒子在初始化的时候都设定好收缩前和收缩后的粒子半径
for (int i = 0; i < particleNum; i++)
{
float r = (float)cp.getNormalDistribution((minRadius + maxRadius) * 0.5f, 1);
float angle = UnityEngine.Random.Range(0.0f, 360.0f);
particleAngle[i] = angle;
particleR[i] = r;
before[i] = r;
after[i] = 0.7f * r;
if (after[i] < minRadius * 1.1f)
{
float midRadius = minRadius * 1.05f;
after[i] = UnityEngine.Random.Range(UnityEngine.Random.Range(minRadius, midRadius), (minRadius * 1.1f));
}
}
}
void RandomlySpread()
{
for (int i = 0; i < count; ++i)
{ // 随机每个粒子距离中心的半径，同时希望粒子集中在平均半径附近
float midRadius = (maxRadius + minRadius) / 2;
float minRate = Random.Range(1.0f, midRadius / minRadius);
float maxRate = Random.Range(midRadius / maxRadius, 1.0f);
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
// float radius = (float)i / count * 10f;
// if (radius == 0) radius = 0.0001f;
// 随机每个粒子的角度
//float angle = Random.Range(0.0f, 360.0f);
float angle = (float)i / count * 360.0f;
//Debug.Log(angle);
float theta = angle / 180 * Mathf.PI;
// 随机每个粒子的游离起始时间
float time = Random.Range(0.0f, 360.0f);
circle[i] = new CirclePosition(radius, angle, time, radius);
particleArr[i].position = new Vector3(circle[i].radius * Mathf.Cos(theta), circle[i].radius * Mathf.Sin(theta), 0f);
}
particleSys.SetParticles(particleArr, particleArr.Length);
}
//随机分布
void RandomlySpread()
{
for (int i = 0; i < count; ++i)
{
//修改：随机每个粒子距离中心的半径，希望粒子靠近两遍
float midRadius = (maxRadius + minRadius) / 2;
float one_four_Radius = minRadius + (maxRadius - minRadius) / 4;
float three_four_Radius = minRadius + (maxRadius - minRadius) * 3 / 4;
float minRate = Random.Range(1.0f, one_four_Radius / minRadius);
float maxRate = Random.Range(three_four_Radius / maxRadius, 1.0f);
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
// 随机每个粒子的角度 ，实现缺口
float minAngle = Random.Range(-90f, 0.0f);
float maxAngle = Random.Range(0.0f, 90f);
float randomangle = Random.Range(minAngle, maxAngle);
float angle = i % 2 == 0 ? randomangle : randomangle - 180;
// float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;//真正的theta角度
// 随机每个粒子的游离起始时间
float time = Random.Range(0.0f, 360.0f);
circle[i] = new CirclePosition(radius, angle, time);
particleArr[i].position = new Vector3(circle[i].radius * Mathf.Cos(theta), 0f, circle[i].radius * Mathf.Sin(theta));
//更新透明度
//particleArr[i].color = colorGradient.Evaluate(circle[i].angle / 360.0f);
}
particleSys.SetParticles(particleArr, particleArr.Length);
}
void RandomlySpread()
{
for (int i = 0; i < count; ++i)
{
float minRate = Random.Range(Random.Range(
Random.Range(1.0f, 1.8f), 1.8f), 1.8f);
float maxRate = Random.Range(0.5f, Random.Range(
0.5f, Random.Range(0.5f, 1.0f)));
float radius = Random.Range(minradius * minRate, maxradius * maxRate);
float angle = Random.Range(0.0f, 360.0f);
float time = Random.Range(0.0f, 360.0f);
circle[i] = new CirclePosition(radius, angle, time);
particleArr[i].color = colorGradient.Evaluate(circle[i].angle / 360.0f);
}
particles.SetParticles(particleArr, particleArr.Length);
}
void RandomlySpread()
{
for (int i = 0; i < count; ++i)
{
// 使用高斯分布生成半径， 均值为midRadius，标准差为0.7
float midRadius = (maxRadius + minRadius) / 2;
float radius = (float)normalGenerator.NextGaussian(midRadius, 0.7);
float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;
float time = Random.Range(0.0f, 360.0f); // 给粒子生成一个随机的初始进度
float radiusChange = Random.Range(0.0f, maxRadiusChange); // 随机生成一个轨道变化大小
circle[i] = new CirclePosition(radius, angle, time);
particleArr[i].position = new Vector3(circle[i].radius * Mathf.Cos(theta), 0f, circle[i].radius * Mathf.Sin(theta));
}
particleSys.SetParticles(particleArr, particleArr.Length);
}
// Use this for initialization
void Start()
{ // 初始化粒子数组
particleArr = new ParticleSystem.Particle[count];
circle = new CirclePosition[count];
particleSys = this.GetComponent <ParticleSystem>();
particleSys.startSpeed = 0;
particleSys.startSize = size;
particleSys.loop = false;
particleSys.maxParticles = count;
particleSys.Emit(count);
particleSys.GetParticles(particleArr);
GradientAlphaKey[] alphaKeys = new GradientAlphaKey[5];
alphaKeys[0].time = 0.0f; alphaKeys[0].alpha = 1.0f;
alphaKeys[1].time = 0.4f; alphaKeys[1].alpha = 0.4f;
alphaKeys[2].time = 0.6f; alphaKeys[2].alpha = 1.0f;
alphaKeys[3].time = 0.9f; alphaKeys[3].alpha = 0.4f;
alphaKeys[4].time = 1.0f; alphaKeys[4].alpha = 0.9f;
GradientColorKey[] colorKeys = new GradientColorKey[2];
colorKeys[0].time = 0.0f; colorKeys[0].color = Color.white;
colorKeys[1].time = 1.0f; colorKeys[1].color = Color.white;
colorGradient.SetKeys(colorKeys, alphaKeys);
for (int i = 0; i < count; ++i)
{
float midRadius = (maxRadius + minRadius) / 2;
float minRate = Random.Range(1.0f, midRadius / minRadius);
float maxRate = Random.Range(midRadius / maxRadius, 1.0f);
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;
float time = Random.Range(0.0f, 360.0f);
circle[i] = new CirclePosition(radius, angle, time);
particleArr[i].position = new Vector3(circle[i].radius * Mathf.Cos(theta), 0f, circle[i].radius * Mathf.Sin(theta));
}
particleSys.SetParticles(particleArr, particleArr.Length);
}
void RandomlySpread()
{
for (int i = 0; i < count; ++i)
{
float midRadius = (maxRadius + minRadius) / 2;
float minRate = Random.Range(1.0f, midRadius / minRadius);
float maxRate = Random.Range(midRadius / maxRadius, 1.0f);
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;
float time = Random.Range(0.0f, 360.0f);
circle[i] = new CirclePosition(radius, angle, time);
particles[i].position = new Vector3(circle[i].radius * Mathf.Cos(theta), 0f, circle[i].radius * Mathf.Sin(theta));
}
particleSystem.SetParticles(particles, particles.Length);
}
void RandomlySpread()
{
for (int i = 0; i < count; ++i)
{ // 随机每个粒子距离中心的半径，同时希望粒子集中在平均半径附近
float midRadius = (maxRadius + minRadius) / 2;
float minRate = Random.Range(1.0f, midRadius / minRadius);
float maxRate = Random.Range(midRadius / maxRadius, 1.0f);
float radius = Random.Range(minRadius * minRate, maxRadius * maxRate);
// 随机每个粒子的角度
float angle = Random.Range(0.0f, 360.0f);
float theta = angle / 180 * Mathf.PI;
// 随机每个粒子的游离起始时间
float time = Random.Range(0.0f, 360.0f);
cirPosition[i] = new CirclePosition(radius, angle, time);
parArray[i].position = new Vector3(cirPosition[i].radius * Mathf.Cos(theta), 0f, cirPosition[i].radius * Mathf.Sin(theta));
}
parSystem.SetParticles(parArray, parArray.Length);
}
