BlackHole

float TAU = PI*2;

float r ;
float g;
float b;



void circle(int x, int y, float r){
  int count = round(max(3,min(100,10+abs(r)/3)));
  float[] pointsX = new float[count+2];
  float[] pointsY = new float[count+2];


  for (int i = 0; i<count+2; i++){
    float a = (TAU/count+frameCount)*i;
    pointsX[i] = (x+cos(a)*r);
    pointsY[i] = (x+sin(a)*r);
  }

  for (int i = 0; i < count; i++){

    line(pointsX[i], pointsY[i], pointsX[i+1], pointsY[i+1]);
  }

}


float frame255 = 0;

void setup(){
 size(2160,2160);
 background(0);

 /*
 r = random(255);
 g = random(255);
 b = random(255);*/

 r = 65;
 g = 255;
 b = 255;

}

void draw(){
  frame255 += frameRate;
  if (frame255 >= 255)
    frame255 = 0;

  strokeWeight(1);
  stroke(r+random(255-r)/2,g+random(255-g)/2,b+random(255-b)/2, random(frame255)/50);
  circle(width/2, height/2, 100+sin(frameCount/2)*frameCount+random(100));

  if (frameCount % 25 == 0){
    strokeWeight(5);
    stroke(r+random(255-r)/2,g+random(255-g)/2,b+random(255-b)/2, random(frame255)/50);
    circle(width/2, height/2, 250+sin(frameCount/2)*frameCount+random(100));
  }



  /*
  fill(0);
  rect(0,0,50,50);
  fill(255);
  text(frameCount+ " ", 10,10);*/

  if (frameCount >= 2000){
    save("Cyan.jpg");
    exit();
  }
}