gistfile1.txt

function getDirection(x, y) {
    var angle = Math.atan2(y, x)
    return angle
}

function getDistance(x, y) {
    return Math.sqrt(x*x + y*y) || 0
}

function getVector(p1, p2) {
    var x = p2.x - p1.x
    var y = p2.y - p1.y
    return {
        direction: getDirection(x, y),
        distance: getDistance(x, y)
    }
}