Hypnotic spiral

int ch=10,deelay=0, cw=10,nimu=500,namu=0,orf=10,hw,hh;

float g=0.0,vel=0.5,a,b,x,y, lalu=0.1, lilu=1,zMax;

boolean fireFrame=true;

boolean sketchFullScreen(){return true;}

void setup(){

  size(800,450,P3D);

background(255);

hw=width/2;

hh=height/2;

zMax=sqrt(pow(hw,2)+pow(hh,2));

​

}

​

void draw(){

  stroke(0);

  strokeWeight(1);

  noFill();

  background(255);

  beginShape();

  for(float n=g,p=0;p<=zMax;n+=lalu,p+=lilu){

  vertex(cos(n)*p+hw,sin(n)*p+hh,0);

  }

  endShape();

   g+=vel;

   if(g>=TWO_PI){g=0;}

if(mousePressed){

  if(deelay==frameRate*2){

    fill(255,0,0);

    rect(0,0,100,1);

    noFill();

    vel+=(pmouseY-mouseY)/10000.0;

}

 lalu+=(pmouseX-mouseX)/1000.0;

if(lilu>0.00001){lilu+=(pmouseY-mouseY)/1000.0;}   

}else{deelay=0;}

}