float degree;
boolean mouseaction;
Foo foo[];

void setup(){
  size(320,240);
  framerate(40);

  degree = 0;

  foo = new Foo[336];
  int count = 0;
  for(int i=0;i<21;i++){
    for(int j=0;j<16;j++){
      foo[count] = new Foo(16*i, 16*j, 0, count);
      count++;
    }
  }
}

void loop(){
  background(255);
  degree+=.1;
  translate(0,0,10);
  for(int i=0;i<336;i++)foo[i].update();
  int row = 0;
  int i = 0;
  for(int j=0; j<300; j++){
    beginShape(QUADS);
    vertex(foo[i].x2, foo[i].y2, foo[i].z);
    vertex(foo[i+1].x2, foo[i+1].y2, foo[i+1].z);
    vertex(foo[i+17].x2, foo[i+17].y2, foo[i+17].z);
    vertex(foo[i+16].x2, foo[i+16].y2, foo[i+16].z);
    endShape();
    i++;
    if(i == 15+(16*row)){
      i++;
      row++;
    }
  }
}

void mousePressed(){
  mouseaction = true;
}

void mouseReleased(){
  mouseaction = false;
}

class Foo{
  float x, y, z, x2, y2, distance;
  int count;

  Foo(float X, float Y, float Z, int C){
    x = X;
    y = Y;
    z = Z;
    count = C;
  }

  void update(){
    if (mouseaction == true){
      distance = dist(mouseX,mouseY,x,y);
      constrain(distance, 0, 200);
    }else{
      distance = 200;
    }
    x2 = x+(random(-1,1)*distance/10);
    y2 = y+(random(-1,1)*distance/10);
    z = cos(degree+count)*sin(degree+count)*20;
  }
}