加工颗粒 [英] Processing Particle
本文介绍了加工颗粒的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我一直在尝试用这个项目做点什么，但到目前为止总是失败:) 所以决定在这里问:)
I've been trying to do something with this project I have but failed always so far :) so decided to ask here :)
我希望粒子围绕 Rock 类的椭圆，而不是穿过它而是围绕它，就像河流中的一块石头，水在它周围流动.有什么建议么 ?
I want the particles to go around the ellipse from Rock class, not through it but around it, like a rock inside a river that water flows around it. Any suggestions ?
int NUM_PARTICLES = 1000;
ParticleSystem p;
Rock r;
void setup()
{
smooth();
fullScreen(P2D);
//size(700,700,P2D);
//background(0);
p = new ParticleSystem();
r = new Rock();
}
void draw()
{
background(0);
p.update();
p.render();
r.rock();
}
float speed = 1;
class Particle
{
PVector position, velocity;
Particle()
{
position = new PVector(random(width),random(height));
velocity = new PVector();
}
void update()
{
velocity.x = speed*(noise(position.y));
velocity.y = speed*(noise(position.x));
position.add(velocity);
if(position.x<0)position.x+=width;
if(position.x>width)position.x-=width;
if(position.y<0)position.y+=height;
if(position.y>height)position.y-=height;
}
void render()
{
stroke(0, 0, 255, 80);
line(position.x,position.y,position.x-velocity.x,position.y-velocity.y);
}
}
class ParticleSystem
{
Particle[] particles;
ParticleSystem()
{
particles = new Particle[NUM_PARTICLES];
for(int i = 0; i < NUM_PARTICLES; i++)
{
particles[i]= new Particle();
}
}
void update()
{
for(int i = 0; i < NUM_PARTICLES; i++)
{
particles[i].update();
}
}
void render()
{
for(int i = 0; i < NUM_PARTICLES; i++)
{
particles[i].render();
}
}
}
class Rock{
void rock()
{
noFill();
stroke(255);
strokeWeight(4);
ellipse(mouseX,mouseY,50,50);
}
}
1
昨天我自己做了一些工作，我接近我想要的，但仍然有一些视觉问题.我想摆脱流的边缘，当我移动鼠标时，我仍然可以看到力的椭圆线.这是结果.
I did some work of my own on it yesterday and i am close to what I want, still got some visual issues.I want to get rid of the edges of the flow and when I move the mouse I can still see the lines of the ellipse from the force. Here is the result.
int NUM_PARTICLES = 9000;
ParticleSystem p;
Rock r;
void setup()
{
smooth();
size(700,700,P2D);
p = new ParticleSystem();
r = new Rock();
}
void draw()
{
background(0);
p.update();
p.render();
r.rock();
}
float speed = 2;
float rad = 100;
class Particle
{
PVector position, velocity;
float initialPosY;
Particle()
{
position = new PVector(random(width), random(height));
initialPosY = position.y;
velocity = new PVector();
}
void update()
{
velocity.x = speed;
velocity.y = 0;
float d = dist (position.x, position.y, mouseX, mouseY);
if (d < rad) {
float force = map(d, 0, rad, speed, 0);
if (position.x < mouseX) {
if (position.y < mouseY) {
velocity.y = -force;
} else {
velocity.y = force;
}
} else {
if (position.y < mouseY) {
velocity.y = force;
} else {
velocity.y = -force;
}
}
position.add(velocity);
} else {
position = new PVector(position.x+speed, initialPosY);
}
if (position.x<0)position.x+=width;
if (position.x>width)position.x-=width;
if (position.y<0)position.y+=height;
if (position.y>height)position.y-=height;
}
void render()
{
stroke(255, 255, 255, 80);
point(position.x, position.y);
}
}
class ParticleSystem
{
Particle[] particles;
ParticleSystem()
{
particles = new Particle[NUM_PARTICLES];
for (int i = 0; i < NUM_PARTICLES; i++)
{
particles[i]= new Particle();
}
}
void update()
{
for (int i = 0; i < NUM_PARTICLES; i++)
{
particles[i].update();
}
}
void render()
{
for (int i = 0; i < NUM_PARTICLES; i++)
{
particles[i].render();
}
}
}
class Rock{
void rock()
{
noFill();
stroke(255);
strokeWeight(4);
ellipse(mouseX,mouseY,50,50);
}
}
推荐答案
我昨天做了一些自己的工作，我已经接近我想要的，仍然有一些视觉问题.我想摆脱边缘当我移动鼠标时，我仍然可以从力中看到椭圆的线条.这是结果.
I did some work of my own on it yesterday and i am close to what I want, still got some visual issues.I want to get rid of the edges of the flow and when I move the mouse I can still see the lines of the ellipse from the force. Here is the result.
int NUM_PARTICLES = 9000;
ParticleSystem p;
Rock r;
void setup()
{
smooth();
size(700,700,P2D);
p = new ParticleSystem();
r = new Rock();
}
void draw()
{
background(0);
p.update();
p.render();
r.rock();
}
float speed = 2;
float rad = 100;
class Particle
{
PVector position, velocity;
float initialPosY;
Particle()
{
position = new PVector(random(width), random(height));
initialPosY = position.y;
velocity = new PVector();
}
void update()
{
velocity.x = speed;
velocity.y = 0;
float d = dist (position.x, position.y, mouseX, mouseY);
if (d < rad) {
float force = map(d, 0, rad, speed, 0);
if (position.x < mouseX) {
if (position.y < mouseY) {
velocity.y = -force;
} else {
velocity.y = force;
}
} else {
if (position.y < mouseY) {
velocity.y = force;
} else {
velocity.y = -force;
}
}
position.add(velocity);
} else {
position = new PVector(position.x+speed, initialPosY);
}
if (position.x<0)position.x+=width;
if (position.x>width)position.x-=width;
if (position.y<0)position.y+=height;
if (position.y>height)position.y-=height;
}
void render()
{
stroke(255, 255, 255, 80);
point(position.x, position.y);
}
}
class ParticleSystem
{
Particle[] particles;
ParticleSystem()
{
particles = new Particle[NUM_PARTICLES];
for (int i = 0; i < NUM_PARTICLES; i++)
{
particles[i]= new Particle();
}
}
void update()
{
for (int i = 0; i < NUM_PARTICLES; i++)
{
particles[i].update();
}
}
void render()
{
for (int i = 0; i < NUM_PARTICLES; i++)
{
particles[i].render();
}
}
}
class Rock{
void rock()
{
noFill();
stroke(255);
strokeWeight(4);
ellipse(mouseX,mouseY,50,50);
}
}
这篇关于加工颗粒的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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