​

let r = 1;

let a = 0;

​

let palette, bk;

function setup() {

  createCanvas(640, 360);

​

  palette = [

    color(11, 106, 136),

    color(45, 197, 244),

    color(112, 50, 126),

    color(146, 83, 161),

    color(164, 41, 99),

    color(236, 1, 90),

    color(240, 99, 164),

    color(241, 97, 100),

    color(248, 158, 79),

    color(252, 238, 33),

  ];

  bk = palette.splice(5, 1)[0];

​

  // let v = createVector(1, 1);

  // v.normalize();

  // tineLine(v, 300, 300, 80, 16);

}

​

let start;

​

​

​

function tineLine(v, x, y, z, c) {

  for (let drop of drops) {

    drop.tine(v, x, y, z, c);

  }

}

​

// function tineLine(xl, z, c) {

//   for (let drop of drops) {

//     drop.tine(xl, z, c);

//   }

// }

​

function addInk(x, y, r, col) {

  let drop = new Drop(x, y, r, col);

  for (let other of drops) {

    other.marble(drop);

  }

  drops.push(drop);

}

​

let val = 4;

​

function draw() {

  // if (random(1) < 0.01) {

  //   let x = random(width);

  //   let y = random(height);

  //   let r = random(10, 100);

  //   addInk(x, y, r);

  // }

​

  // if (mouseIsPressed) {

  //   tineLine(mouseX, 4, 16);

  // }

  let factor = 1;

  let a = factor * frameCount * 137.5;

  let r = val * sqrt(factor * frameCount);

  let x = r * cos(a);

  let y = r * sin(a);

​

  let v = createVector(x, y);

  let c1 = color(248, 158, 79);

  let c2 = color(252, 238, 33);

  v.col = lerpColor(c1, c2, (frameCount % 60) / 60);

​

  if (frameCount < 120) {

    let total = val / 2;

    for (let n = 0; n < total; n++) {

      let r = map(n, 0, total, 20, 4);

      addInk(v.x + width / 2, v.y + height / 2, r, random(palette));

    }

​

    val += 0.2;

  } else {

    noLoop();

  }

​

  background(bk);

  for (let drop of drops) {

    drop.show();

  }

}

​

function mousePressed() {

      let step = 10;

    for (let j = 0; j < width; j += step) {

      let v = createVector(0, 1);

      tineLine(v, j, height / 2, 24, 2);

    }

  redraw();

}

​