let anglePad1 = 0;

let anglePad2 = 0;

let angleBall = 0;

let padWidth;

const colorBall = [255,0,0];

const colorPad1 = [0,255,0];

const colorPad2 = [0,0,255];

​

function setup() {

  createCanvas(400, 400);

  padWidth = PI/8;

  textSize(80);

  textAlign(CENTER,CENTER);

  strokeCap(SQUARE);

}

​

function draw() {

  background(220);

  noFill();

  stroke(0);

  strokeWeight(16);

  push();

  translate(200,150);

  circle(0,0,circlesize);

  angleBall = mouseY / 50;

  anglePad1 = mouseX / 50;

  anglePad2 = anglePad1 + PI;

​

  noFill();

  stroke(colorPad1);

  arc(0,0,circlesize,circlesize,anglePad1 - padWidth,anglePad1 + padWidth);

    stroke(colorPad2);

  arc(0,0,circlesize,circlesize,anglePad2 - padWidth,anglePad2 + padWidth);

    noStroke();

  fill(colorBall);

  circle(cos(angleBall) * circlesize/2, sin(angleBall) * circlesize/2, 20);

pop();

  if(intersectingDisplay()) {

    noStroke();

    fill(colorBall);

    text("!",200,160);

  }

}

​

function intersectingDisplay(){

  noFill();

  stroke(128);

  line(A2L(0), 270,A2L(TWO_PI), 270);

  fill(colorBall);

  noStroke();

  angleBall = normalizeSingleAngle(angleBall);

  anglePad1 = normalizeSingleAngle(anglePad1);

  anglePad2 = normalizeSingleAngle(anglePad2);

  circle(A2L(angleBall), 300,16);

  circle(A2L(angleBall + TWO_PI), 300,16);

  const [p1a1,p1a2] = normalizeTwoAngles(anglePad1 - padWidth,anglePad1 + padWidth);

  stroke(colorPad1);

  line(A2L(p1a1), 335,A2L(p1a2), 325);

  const [p2a1,p2a2] = normalizeTwoAngles(anglePad2 - padWidth,anglePad2 + padWidth);

  stroke(colorPad2);

  line(A2L(p2a1), 365,A2L(p2a2), 355);

  return intersectingDup(angleBall,p1a1,p1a2,p2a1,p2a2)

}

function intersectingDup(ab,p1a1,p1a2,p2a1,p2a2){

  const ab2 = ab + TWO_PI;

   return (ab >= p1a1 && ab <= p1a2) || 

    (ab >= p2a1 && ab <= p2a2) ||

     (ab2 >= p1a1 && ab2 <= p1a2) || 

    (ab2 >= p2a1 && ab2 <= p2a2);

​

  ;

}

function A2L(a) {

  return 100 + (a * 32);

}

​

function normalizeSingleAngle(a){

   while(a < 0) a += TWO_PI;

  return a % TWO_PI;

}

​

function normalizeTwoAngles(a1,a2){

  while(a1 < 0 || a2 < 0){

     a1 += TWO_PI;

    a2 += TWO_PI;

  }

  return [a1,a2];

}

​