Coffee Spiral - OpenProcessing

mySketch
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PImage cup;
//GifMaker gifExport;
boolean isLoop = true;
PFont myFont;
float SCREEN_BOTTOM = 0;
float SCREEN_TOP = 0 ;
int frames = 0;
int totalFrames = 300;
ArrayList<PVector> points = new ArrayList<PVector>(); 
void setup() {
​
  size(500, 500);
  //cup = loadImage("cup.png");
  //gifExport = new GifMaker(this, "export.gif", 100);
  //gifExport.setRepeat(0); // make it an "endless" animation
​
  SCREEN_BOTTOM = height - height/16*3.5;
  SCREEN_TOP = height/16*3.5 ;
  rectMode(CENTER);
​
  //String[] fontList = PFont.list();
  //printArray(fontList);
}
//color orange = new color(#f3a34f);
void keyPressed() {
  if (key==' ') {
    isLoop = !isLoop;
  }
}
void draw() {
  background(#955f42);
  if (!isLoop) {
    noLoop();
  }
  // Code Here.
​
  noFill();
  
  pushMatrix();
  translate(width/2, height/2);
  
  selfbg();
  popMatrix();
  
  pushMatrix();
  translate(width/2, height/2);
  //logSpiral(0.99, 0.26);
​
  pushMatrix();
  noFill();
  for (int i = 0; i < 13; i++) { 
    rotate(PI*5.1*sin(frameCount*0.030*mouseX/width%300));
    logSpiral(0.77+i*8.8, 0.15, 365+i*-55 );
    archiSpiral(3.92+i*27.4, 4.71+i*0, 382+i*-27);
  }
  popMatrix();
​
​
​
  popMatrix();
  // Code End.
}
void selfbg() {
  for (int i = 0; i < 68; i++) {
    fill(#512e1e, 243 + i*-6);
    noStroke();
    float r = (123*mouseX/width-100)+i*14; 
    ellipse(0, 0, r, r);
  }
}
​
void archiSpiral(float a, float b, float opaque) {
​
  strokeWeight(2.5+sin(a*b)*2.0);
  stroke(#8c5b40);
  int count = 21;
  float angunit = PI/6;
  beginShape();
  // LINES TRIANGLES  TRIANGLE_STRIP  
  // TRIANGLE_FAN  QUADS   QUAD_STRIP
  for (int i = 0; i<count; i++) { 
    float theta = i*angunit; 
    float r = a +  (theta*b);
    ellipse(1.7*r*sin(theta), 2.0*r*cos(theta), 1, 1);
    if (noise(i)>0.92) {
      endShape();
      beginShape();
    }
    curveVertex(r*sin(theta), r*cos(theta));
  }
  endShape(); //CLOSE
}
​
​
void logSpiral(float a, float b, float opaque) {
  strokeWeight(1.4+sin(a*b));
  stroke(#fffbb4, opaque);
  int count = 161;
  float angunit = PI/9;
  beginShape();
  // LINES TRIANGLES  TRIANGLE_STRIP  
  // TRIANGLE_FAN  QUADS   QUAD_STRIP
  for (int i = 0; i<count; i++) { 
    float theta = i*angunit; 
    float r = a*exp(theta*b);
    //point(r*sin(theta), r*cos(theta));
    pushMatrix();
    rotate(PI/2*noise(i*0.1));
    rect(r*sin(theta), r*cos(theta), 3, 3);
    popMatrix();
    curveVertex(r*sin(theta), r*cos(theta));
  }
  endShape(); //CLOSE
}
​