'use strict';

window.N = 1000000;

​

class PointAndVelocity {

    constructor(x, y, vx, vy) {

        this.x = x;

        this.y = y;

        this.vx = vx;

        this.vy = vy;

    }

}

​

class Point {

    constructor(x, y) {

        this.x = x;

        this.y = y;

    }

}

​

class Velocity {

    constructor(vx, vy) {

        this.vx = vx;

        this.vy = vy;

    }

}

​

aos = Array(N).fill(new PointAndVelocity(0, 0, 0, 0))

    .map(() => new PointAndVelocity(Math.random() * 100|0, Math.random() * 100|0, Math.random() * 100|0, Math.random() * 100|0));

​

// SoA, we try to duplicate the data so numeric differences are out of the question.

points = Array(N).fill(new Point(0, 0)).

    .map((_, i) => new Point(aos[i].x, aos[i].y));

velocities = Array(N).fill(new Velocity(0, 0)).

    .map((_, i) => new Velocity(aos[i].vx, aos[i].vy));