Balls

makes a vector and applies functions

JavaScript

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;
})();

Position.prototype = {
    impact: function (point2) {
        var point1 = this;
        var normal = point1.toPoint(point2);
        var normal2 = point2.toPoint(point1);
        var tangent = new Vector(-normal.y, normal.x);
        var tangent2 = new Vector(-normal2.y, normal2.x);
        normal.norm();
        normal2.norm();
        tangent.norm();
        tangent2.norm();
        var midpoint = new Vector(((point1.x + point2.x) / 2.0),(point1.y + point2.y) / 2.0);
        
        point1.x = ((point1.x + point2.x) / 2.0) - normal.x * this.radius;
        point1.y = ((point1.y + point2.y) / 2.0) - normal.y * this.radius;
        
        point2.x = ((point1.x + point2.x) / 2.0) - normal2.x * point2.radius;
        point2.y = ((point1.y + point2.y) / 2.0) - normal2.y * point2.radius;
     
        var v1n = normal.dot(point1.velocity),
            v1t = tangent.dot(point1.velocity),
            v2n = normal2.dot(point2.velocity),
            v2t = tangent2.dot(point2.velocity);
        
        normal.mult(v2n); //normal.mult(point1.velocity.mag);
        normal2.mult(v1n); //normal2.mult(point2.velocity.mag);
        tangent.mult(v1t); //tangent.mult(point1.velocity.mag);
        tangent2.mult(v2t); //tangent2.mult(point2.velocity.mag);
        
        var newv1 = new Vector(-(normal.x) + (tangent.x), -(normal.y) + (tangent.y));
        var newv2 = new Vector(-(normal2.x) + (tangent2.x), -(normal2.y) + (tangent2.y));
        
        point1.setvelocity(newv1);
        point2.setvelocity(newv2);
    },
    checkBounds:function(){
    var maxx = this.xMax;
        var maxy = this.yMax;
        if (this.x + this.velocity.x <= 0) {
            this.x = (this.x ) * -1;
      ...