Exams - Plane (drawn on JavaScript)

/* You will be given an integer N. The width of the rocklq is (3*N).
 The height of the plane is ((N * 3) – (N / 2)) and the width is (N * 3).
 You must print at the console a picture of size N. */

"use strict";

function draw(args) {
    var n = parseInt(args[0]);
    var width = n * 3;

    var outerDots = parseInt((width - 1) / 2);
    console.log("%s*%s", new Array(outerDots + 1).join('.'),
        new Array(outerDots + 1).join('.'));

    var innerDots = 1;
    do {
        outerDots -= 1;
        printDotsAndAsterisk(outerDots, innerDots);
        innerDots += 2;
    } while (innerDots <= (n + 2));

    outerDots -= 2;
    innerDots += 2;
    do {
        printDotsAndAsterisk(outerDots, innerDots);
        outerDots -= 2;
        innerDots += 4;
    } while (outerDots >= 1);

    outerDots = n - 2;
    innerDots = n;
    console.log("*%s*%s*%s*", new Array(outerDots + 1).join('.'),
        new Array(innerDots + 1).join('.'), new Array(outerDots + 1).join('.'));

    var middleDots = 1;
    for (var i = 1; i < parseInt(n / 2); i += 1) {
        outerDots -= 2;
        console.log("*%s*%s*%s*%s*%s*", new Array(outerDots + 1).join('.'),
            new Array(middleDots + 1).join('.'), new Array(innerDots + 1).join('.'),
            new Array(middleDots + 1).join('.'), new Array(outerDots + 1).join('.'));
        middleDots += 2;
    }

    outerDots = n - 1;
    innerDots = n;
    do {
        printDotsAndAsterisk(outerDots, innerDots);
        outerDots -= 1;
        innerDots += 2;
    } while (outerDots >= 1);

    console.log(new Array(width + 1).join('*'));

    function printDotsAndAsterisk(outer, inner) {
        console.log("%s*%s*%s", new Array(outer + 1).join('.'),
            new Array(inner + 1).join('.'), new Array(outer + 1).join('.'));
    }
}

draw(['5']);
draw(['7']);
draw(['9']);