// The Nature of Code

// The Coding Train / Daniel Shiffman

// https://youtu.be/i2ROE_mAhU0

// https://thecodingtrain.com/learning/nature-of-code/3.2-angular-motion.html

​

// Rectangle Acceleration: https://editor.p5js.org/codingtrain/sketches/RR9XUN1mf

// Rectangle Grab Exercise: https://editor.p5js.org/codingtrain/sketches/In9e8j6t_

// Gravitational Attraction: https://editor.p5js.org/codingtrain/sketches/Y-yxvkkZk

​

let angle = 0;

let angleV = 0;

let angleA = 0;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  angleMode(RADIANS);

}

​

let pAngle = 0;

​

function mouseDragged() {

  let v = createVector(pmouseX - width / 2, pmouseY - height / 2);

  pAngle = v.heading();

}

​

function mouseReleased() {

  let v2 = createVector(mouseX - width / 2, mouseY - height / 2);

  angleV = v2.heading() - pAngle;

  console.log(angleV);

}

​

function draw() {

  //angleA = map(mouseX, 0, width, -0.01, 0.01);

  //angleV = constrain(angleV, -0.2, 0.2);

​

  if (mouseIsPressed) {

    let v = createVector(mouseX - width / 2, mouseY - height / 2);

    angle = v.heading();

  }

​

  background(146, 83, 161);

  noStroke();

  fill(240, 99, 164);

  rectMode(CENTER);

  translate(width / 2, height / 2);

  rotate(angle);

  rect(0, 0, 256, 32);

​

  angle += angleV;

  angleV += angleA;

}

​