JSFiddle - React, Tailwind, and code Playground

by Darby Rathbone

JavaScript

var Vector = (function () {
    function Vector(x, y) {
        this.x = x;
        this.y = y;
        this.prevmag = 1;

    }
    return Vector;
})();
Vector.prototype = {
    toString: function () {
        return "[" + this.x + "," + this.y + "]";
    },
    mag: function () {
        return Math.sqrt((this.x * this.x) + (this.y * this.y));
    },
    mult: function (k) {
        this.x = this.x * k;
        this.y = this.y * k;
        return this.toString();
    },
    div: function (k) {
        this.x = (this.x) / k;
        this.y = (this.y) / k;
        return this.toString();
    },
    norm: function () {
        this.prevmag = this.mag();
        this.div((this.mag()));
        return this.toString();
    },
    add: function (vk) {
        this.x = this.x + vk.x;
        this.y = this.y + vk.y;
        return this.toString();
    },
    sub: function (vk) {
        this.x = this.x - vk.x;
        this.y = this.y - vk.y;
        return this.toString();
    },

    direction: function () {
        return Math.atan2(this.y, this.x);
    },
    dot: function (v1) {
        return (v1.x * this.x) + (v1.y * this.y);
    }
};
var Position = (function () {
    function Position(x, y) {
        this.x = x;
        this.y = y;
        this.velocity = new Vector(0, 0);
        this.xMax = 100;
        this.yMax = 100;
        this.radius = 10;
        this.accel = new Vector(0, 0);
    }

    return Position;
})();
var Spring = (function () {
    function Spring(a1, a2, k, d, len) {
        this.end1 = a1;
        this.end2 = a2;
        this.k = k;
        this.d = d;
        this.len = len;
    }

    return Spring;

})();
Spring.prototype = {

    force: function () {
        return new Vector(this.k * (this.end1.x - this.end2.x - this.len), this.k * (this.end1.y - this.end2.y - this.len));
    },
    damper: function () {
        return (new Vector(this.d * (this.end1.velocity.x - this.end2.velocity.x), this.d * (this.end1.velocity.y -...