//modified from tree ring code
let ringArrayX = [];//Tree x variable
let ringArrayY = [];//Tree y variable
let nPoints = 250;//number of points in curves PLAY WITH THIS NUMBER!
let m = 2;

function setup(){
  cnv = createCanvas(600,600)//create canvas
  stroke(255);
}
function draw(){
  background(0);
  noFill();
  translate(width/2,width/2)//make origin be in center
  str1 = 'Npoints = '+str(nPoints);
  str2 = 'multiplier = '+str(round(m,2));
  text(str1,-width/2+10,width/2-20);
  text(str2,-width/2+10,width/2-5);
  rIn = 200 //radius
  ringMakerInit(rIn,0);//initial ring
  drawRing(ringArrayX[0],ringArrayY[0]);//draw ring function
}

function ringMakerInit(r,v){//initial growth
  ringArrayX[0] = [];
  ringArrayY[0] = [];
  for (let i =0; i<=nPoints;i++){
    ringArrayX[0][i] = r*sin(i*m*(nPoints)+frameCount/100);//CHANGE SPEED BY CHANGING THE 100 AND CHANGE 2 TO CHANGE SHAPE
    ringArrayY[0][i] = r*cos(i*(nPoints)+frameCount/100);
  }
}

function drawRing(X,Y){//draw ring
  beginShape();
    for (let i = 0;i<=nPoints;i++){
      curveVertex(X[i],Y[i]);
    }
  endShape();
}

function mousePressed(){//reset with mousepress
  background(255);
  translate(-width/2,-width/2);
  stroke(random(180,250),random(180,255),random(180,255));
  nPoints = int(random(20,300));
  text(nPoints,-width/2,-width/2);
  frameCount = 0;
  m = random(2,9);
  draw();
}