PSystem ps;

Particle[] FarLeft = new Particle[14];
Particle[] FarRight = new Particle[14];
Particle[] NearLeft = new Particle[14];
Particle[] NearRight = new Particle[14];
Particle Center;

float sl;
float il;


void setup() {
  size(500,500);
  ps = (PSystem)loadPlugin("PSystem");
  framerate(30);

  Center = new Particle(0, 0,0);
  ps.addParticle(Center);

  il = 2*sqrt(10);

  for(int i=0; i<14; ++i) {
    sl = i*20.0;
    if ((i==0) || (i==2) || (i==4) || (i==6) || (i==8) || (i==10) || (i==12)) {
      FarLeft[i] = new Particle(-i*sqrt(50)-sqrt(50),sqrt(50),-i*sqrt(50)+sqrt(50));
      ps.addParticle(FarLeft[i]);
      FarRight[i] = new Particle(i*sqrt(50)+sqrt(50),sqrt(50),-i*sqrt(50)+sqrt(50));
      ps.addParticle(FarRight[i]);
      NearLeft[i] = new Particle(-i*sqrt(50)-sqrt(50),sqrt(50),i*sqrt(50)+sqrt(50));
      ps.addParticle(NearLeft[i]);
      NearRight[i] = new Particle(i*sqrt(50)+sqrt(50),sqrt(50),i*sqrt(50)+sqrt(50));
      ps.addParticle(NearRight[i]);
    } else {
      FarLeft[i] = new Particle(-i*sqrt(50)-sqrt(50),0,-i*sqrt(50)+sqrt(50));
      ps.addParticle(FarLeft[i]);
      FarRight[i] = new Particle(i*sqrt(50)+sqrt(50),0,-i*sqrt(50)+sqrt(50));
      ps.addParticle(FarRight[i]);
      NearLeft[i] = new Particle(-i*sqrt(50)-sqrt(50),0,i*sqrt(50)+sqrt(50));
      ps.addParticle(NearLeft[i]);
      NearRight[i] = new Particle(i*sqrt(50)+sqrt(50),0,i*sqrt(50)+sqrt(50));
      ps.addParticle(NearRight[i]);
      }
    ps.defaultSpringRestLength = sl;
    ps.defaultSpringStrength = 2;
    ps.defaultSpringDamping = 1;
    ps.addSpring(FarLeft[i],FarRight[i]);
    ps.addSpring(FarLeft[i],NearLeft[i]);
    ps.addSpring(NearLeft[i],NearRight[i]);
    ps.addSpring(NearRight[i],FarRight[i]); 
  
    ps.defaultSpringRestLength = il;
    if(i>0) {
      ps.defaultSpringStrength = 2;   
      ps.addSpring(FarLeft[i],FarLeft[i-1]);
      ps.addSpring(FarRight[i],FarRight[i-1]);
      ps.addSpring(NearLeft[i], NearLeft[i-1]);
      ps.addSpring(NearRight[i],NearRight[i-1]);
      }
    if(i>0) {
      ps.defaultSpringStrength = .5;
      ps.defaultSpringRestLength = sqrt(sq(sl-10)+100);
      ps.addSpring(FarLeft[i],FarRight[i-1]);
      ps.addSpring(FarRight[i],NearRight[i-1]);
      ps.addSpring(NearRight[i], NearLeft[i-1]);
      ps.addSpring(NearLeft[i],FarLeft[i-1]);
      ps.addSpring(FarLeft[i-1],FarRight[i]);
      ps.addSpring(FarRight[i-1],NearRight[i]);
      ps.addSpring(NearRight[i-1], NearLeft[i]);
      ps.addSpring(NearLeft[i-1],FarLeft[i]);
      }


    }
  ps.defaultSpringRestLength = il;
  ps.addSpring(FarLeft[0],Center);
  ps.addSpring(FarRight[0],Center);
  ps.addSpring(NearLeft[0], Center);
  ps.addSpring(NearRight[0],Center);
  

  
  ps.setGravity(0.0);
  

  
  }

void loop() {
  stroke(200,204,50);
  background(40,0,50);
  translate(width/2,height/2);
  rotateX(mouseX*PI/250.0);
  rotateY(mouseY*PI/250.0);
  ps.draw();
  if (frame == 1000) {
    FarLeft[13].fix();
    NearRight[13].fix();
    FarRight[13].fix();
    NearLeft[13].fix();
    }
}