// Insprired by: The Nature of Code

// The Coding Train / Daniel Shiffman

// https://youtu.be/DxFDgOYEoy8

// 

// Here I have made modifications to The Coding Train's Code which he made in The Nature of Code #2.4

// The balls with different masses fall through 3 different liquids with random Coefficient of Drags, these liquids have their opacity based on their densities/Drag Coefficient.

​

let movers = [];

let liqs = [];

let mu = 0.1;

​

function setup() {

  createCanvas(400, 600);

  for (let i = 0; i < 10; i++) {

    movers[i] = new Mover(random(width), 10, random(0.8, 10));

  }

  liqs.push(new liquid(0, 100, width, 50));

  liqs.push(new liquid(0, 250, width, 50));

  liqs.push(new liquid(0, 400, width, 50));

}

​

function draw() {

  background(0);

​

  fill(255, 125);

  noStroke();

​

  for (let mover of movers) {

    if (mouseIsPressed) {

      let wind = createVector(0.1, 0);

      mover.applyForce(wind);

    }

    let gravity = createVector(0, 0.2);

    let weight = p5.Vector.mult(gravity, mover.mass);

    mover.applyForce(weight);

    for(let l of liqs){

      if(l.intersecting(mover.pos.x, mover.pos.y)){

         mover.drag(l.c);

      }

    }

    mover.update();

    mover.edges();

    mover.show();

  }

    for(let l of liqs){

      l.show();

    }

}