Magnetism

var loc, vel, acc, f, m, b, q;

​

function setup() {

  createCanvas(windowWidth, windowHeight, WEBGL);

  loc = createVector(windowWidth/2, windowHeight/2);

  vel = createVector(1, 0, 0);

  acc = createVector(0, 0, 0);

  b = createVector(0, 0, 1);

  f = p5.Vector.cross(b, vel);

  m = 2;

  q = 1;

}

​

function draw() {

  background(200);

  ellipse(loc.x, loc.y, 10, 10);

  loc.add(vel);

  vel.add(acc);

  acc.set(f.x, f.y, f.z);

  acc.div(m);

  f = p5.Vector.cross(b, vel);

  f.mult(q);

}