import processing.pdf.*;

float inner_r;
float outer_r;

PVector[] inner_p;
PVector[] outer_p;

int steps = 3;

int alpha = 200;

PGraphics g;

void setup() {
  size(600, 600);
  g = createGraphics(width, height);
  redraw();
  // noLoop();
  // beginRecord(PDF, "shirt_round"+(int)random(10000)+".pdf");
}

void redraw() {
  inner_r = width*0.25;
  outer_r = width*0.4;
  int inc = floor(360/steps);

  inner_p = new PVector[360/inc];
  outer_p = new PVector[360/inc];

  int index = 0;
  for (int i = 0; i < 360; i += inc) {
    float r1 = random(-width*0.015, width*0.015);
    float r2 = random(-width*0.1, width*0.1);
    inner_p[index] = new PVector(sin(radians(i))*inner_r+r1, cos(radians(i))*inner_r+r1);
    outer_p[index] = new PVector(sin(radians(i))*outer_r+r2, cos(radians(i))*outer_r+r2);
    index++;
  }
}

void draw() {
  background(255);
  translate(width*0.5, height*0.5);

  strokeCap(SQUARE);
  //fill(0);
  //beginShape();
  for (int i = 0; i < inner_p.length; i++) {
    for (int j = 0; j < inner_p.length; j++) {
      // int k = (int)random(outer_p.length);
      strokeWeight(1);
      stroke(0, alpha*1.5);
      // if (random(1) > .992)
      rotate(millis()*0.0000001);
        line(inner_p[i].x, inner_p[i].y, outer_p[j].x+sin(i+millis()*0.001)*100, outer_p[j].y+cos(j+millis()*0.01)*100);

      // if (random(1) > .995)
      rotate(millis()*.000001);
        // line(inner_p[i].x, inner_p[i].y, inner_p[j].x, inner_p[j].y);

      // line(inner_p[i].x, inner_p[i].y, outer_p[j].x, outer_p[j].y);
      line(inner_p[i].x, inner_p[i].y, outer_p[j].x+random(10), outer_p[i].y);

      strokeWeight(1);
      stroke(0, 0);
      // if (i == 0)
      //   line(inner_p[inner_p.length-1].x, inner_p[inner_p.length-1].y, inner_p[i].x, inner_p[i].y);
      // else
      //   line(inner_p[i-1].x, inner_p[i-1].y, inner_p[i].x, inner_p[i].y);


      //vertex(inner_p[i].x, inner_p[i].y);
    }
  }

  //endShape(CLOSE);

  // endRecord();
}

void keyPressed() {
  if (key == 'r')
    redraw();

  if (key == 's')
    setup();
}