Brick Sort Visualization using JavaScript

Last Updated : 25 Jul, 2024

This is basically a variation of bubble-sort. This algorithm is divided into two phases- Odd and Even Phases. In the odd phase, we perform a bubble sort on odd-indexed elements, and in the even phase, we perform a bubble sort on even-indexed elements.

To know more about it. Please refer to Brick Sort.

GUI(Graphical User Interface) helps in better understanding than programs. In this article, we will visualize Brick Sort using JavaScript.

Pre-requisites:

Brick Sort.
JavaScript promises.
Basic HTML, CSS & JavaScript.
JavaScript async/await function.

Approach:

First, we will generate a random array using Math.random() function.
Different colors are used to indicate which elements are unsorted(sky-blue), compared(red) & sorted(lightgreen).
The new array can be generated by pressing the “Ctrl+R” key.
Button Brick Sort the elements using the selection sort algorithm.
Finally, elements are sorted.

Below is the implementation of the above approach.

HTML

//filename:index.html
<!DOCTYPE html>
<html lang="en">

<!-- Head -->
<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width,
    initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />

    <!-- Title -->
    <title>Brick Sort Visualizer</title>

    <!-- Linking style.css -->
    <link href="style.css" rel="stylesheet" />
</head>

<!-- Body -->
<body>
    <section class="head">
        Brick Sort Visualization
    </section>
    <section class="data-container"></section>
    <section id="ele"></section>    
    <div style="margin: auto; width: fit-content">

        <!-- "Brick Sort" button -->
        <button class="btn2" 
            onclick="BrickSort(),disable()" 
            id="Button2">
            Brick Sort
        </button>
    </div>

    <!-- Linking script.js -->
    <script src="script.js"></script>
</body>

</html>

CSS

/*filename: style.css*/
.mySlides {
    display: none;
}

body {
    background-color: rgb(0, 0, 0);
    font-family: Verdana, sans-serif;
}

.head {
    margin-top: 20px;
    margin-right: 20vw;
    margin-left: 20vw;
    text-align: center;
    font-size: 40px;
    background-color: #000000;

    color: white;
    font-weight: bolder;
}

.data-container {
    width: 600px;
    color: aliceblue;
    height: 364px;
    position: relative;
    margin: 0 auto;
}

.bar {
    width: 28px;
    position: absolute;
    left: 0;
    bottom: 0;
    background-color: rgb(0, 183, 255);
    transition: 0.2s all ease;
}

.bar__id {
    position: absolute;
    top: -24px;
    width: 100%;
    text-align: center;
}

.btn2 {
    padding: 12px;
    font-weight: bolder;
    background-color: white;
    border-radius: 10px;
    color: rgb(0, 0, 0);
    font-size: 16px;
    border: white;
}

#ele {
    text-align: center;
    height: 35px;
}

JavaScript

//filename:script.js
const container = document.querySelector(".data-container");
// Function to generate bars
function generatebars(num = 20) {

    // For loop to generate 20 bars
    for (let i = 0; i < num; i += 1) {

        // To generate random values from 1 to 100
        const value = Math.floor(Math.random() * 100) + 1;

        // To create element "div"
        const bar = document.createElement("div");

        // To add class "bar" to "div"
        bar.classList.add("bar");

        // Provide height to the bar
        bar.style.height = `${value * 3}px`;

        // Translate the bar towards positive X axis
        bar.style.transform = `translateX(${i * 30}px)`;

        // To create element "label"
        const barLabel = document.createElement("label");

        // To add class "bar_id" to "label"
        barLabel.classList.add("bar__id");

        // Assign value to "label"
        barLabel.innerHTML = value;

        // Append "Label" to "div"
        bar.appendChild(barLabel);

        // Append "div" to "data-container div"
        container.appendChild(bar);
    }
}

// Asynchronous function to perform "Brick Sort"
async function BrickSort(delay = 600) {

    let bars = document.querySelectorAll(".bar");

    // Initialize isSorted with false
    let isSorted = false;

    while (!isSorted) {
        // set isSorted true
        isSorted = true;

        for (let i = 1; i <= 18; i = i + 2) {
            // Assigning value of ith bar into value1
            let value1 = parseInt(bars[i].childNodes[0].innerHTML);

            // Assigning value of i+1th bar into value2
            let value2 = parseInt(bars[i + 1].childNodes[0].innerHTML);

            if (value1 > value2) {
                // Provide red color to the ith bar
                bars[i].style.backgroundColor = "red";

                // Provide red color to the i+1th bar
                bars[i + 1].style.backgroundColor = "red";

                // Swap ith bar with (i+1)th bar
                let temp1 = (bars[i].style.height);
                let temp2 = (bars[i].childNodes[0].innerText);

                // To pause the execution of code for 300 milliseconds
                await new Promise((resolve) =>
                    setTimeout(() => {
                        resolve();
                    }, 300)
                );

                // Swap pith bar with (i+1)th bar
                bars[i].style.height = (bars[i + 1].style.height);
                bars[i].childNodes[0].innerText =
                    (bars[i + 1].childNodes[0].innerText);
                bars[i + 1].style.height = temp1;
                bars[i + 1].childNodes[0].innerText = temp2;
                isSorted = false;

                // To pause the execution of code for 300 milliseconds
                await new Promise((resolve) =>
                    setTimeout(() => {
                        resolve();
                    }, 300)
                );

                // Provide skyblue color to the ith bar
                bars[i].style.backgroundColor = "rgb(0, 183, 255)";

                // Provide skyblue color to the i+1th bar
                bars[i + 1].style.backgroundColor = "rgb(0, 183, 255)";
            }
        }

        for (let i = 0; i <= 18; i = i + 2) {
            // Assigning value of ith bar into value3
            let value3 = parseInt(bars[i].childNodes[0].innerHTML);

            // Assigning value of i+1th bar into value4
            let value4 = parseInt(bars[i + 1].childNodes[0].innerHTML);

            if (value3 > value4) {
                // Provide red color to the ith bar
                bars[i].style.backgroundColor = "red";

                // Provide red color to the i+1th bar
                bars[i + 1].style.backgroundColor = "red";

                // Swap ith bar with (i+1)th bar
                let temp3 = (bars[i].style.height);
                let temp4 = (bars[i].childNodes[0].innerText);

                // To pause the execution of code for 300 milliseconds
                await new Promise((resolve) =>
                    setTimeout(() => {
                        resolve();
                    }, 300)
                );

                // Swap ith bar with (i+1)th bar
                bars[i].style.height = (bars[i + 1].style.height);
                bars[i].childNodes[0].innerText =
                    (bars[i + 1].childNodes[0].innerText);
                bars[i + 1].style.height = temp3;
                bars[i + 1].childNodes[0].innerText = temp4;
                isSorted = false;

                // To pause the execution of code for 300 milliseconds
                await new Promise((resolve) =>
                    setTimeout(() => {
                        resolve();
                    }, 300)
                );

                // Provide skyblue color to the ith bar
                bars[i].style.backgroundColor = "rgb(0, 183, 255)";

                // Provide skyblue color to the i+1th bar
                bars[i + 1].style.backgroundColor = "rgb(0, 183, 255)";
            }

            // To pause the execution of code for 300 milliseconds
            new Promise((resolve) =>
                setTimeout(() => {
                    resolve();
                }, 300)
            );
        }
        // To pause the execution of code for 300 milliseconds
        await new Promise((resolve) =>
            setTimeout(() => {
                resolve();
            }, 300)
        );
        // Providing skyblue color
        for (var x = 0; x < 20; x++) {
            bars[x].style.backgroundColor = "rgb(0, 183, 255)";
        }
    }
    // Providing lightgreen color
    for (var x = 0; x < 20; x++) {
        bars[x].style.backgroundColor = "rgb(49, 226, 13)";
    }
    // To enable the button "Brick Sort" after final(sorted)
    document.getElementById("Button2").disabled = false;
    document.getElementById("Button2").style.backgroundColor = "#6f459e";
}
// Call "generatebars()" function
generatebars();

// Function to generate new random array
function generate() {
    window.location.reload();
}

// Function to disable the button
function disable() {

    // To disable the button "Brick Sort"
    document.getElementById("Button2").disabled = true;
    document.getElementById("Button2").style.backgroundColor = "white";
}

Output:

Brick Sort Visualization using JavaScript

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Brick Sort Visualization using JavaScript

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