爱心粒子代码java

根据提供的引用内容，以下是一个基于Java的爱心粒子代码示例：

import processing.core.PApplet;
import processing.core.PVector;

class Particle {
  PVector pos;
  float zDepth;

  Particle(float x, float y, float z) {
    pos = new PVector(x, y, z);
    zDepth = z;
  }
}

public class HeartParticles extends PApplet {
  Particle[] particles;
  float pulsateMult;

  public void settings() {
    size(400, 400);
  }

  public void setup() {
    particles = new Particle[1000];
    for (int i = 0; i < particles.length; i++) {
      float x = random(-width / 2, width / 2);
      float y = random(-height / 2, height / 2);
      float z = random(width);
      particles[i] = new Particle(x, y, z);
    }
  }

  public void draw() {
    background(255);
    translate(width / 2, height / 2);
    for (Particle particle : particles) {
      stroke(255, 0, 0);
      strokeWeight(2);
      point(particle.pos.x, particle.pos.y);
      PVector dir = new PVector(-width / 2, -height / 2, 0);
      dir.add(particle.pos);
      dir.normalize();
      dir.mult(pulsateMult * particle.zDepth * 0.05 + cos(frameCount * 0.05) * 1.5);
      particle.pos.add(dir);
    }
    pulsateMult = sin(frameCount * 0.05) * 1.5;
  }

  public static void main(String[] args) {
    PApplet.main("HeartParticles");
  }
}