🌿 Smart Garden Manager in C++ with Robotics, UI, Drones, and Sound "A Rainwater Conservation System for Tomorrow’s Farms"

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  🌿  Smart Garden Manager in C++ with Robotics, UI, Drones, and Sound "A Rainwater Conservation System for Tomorrow’s Farms" 🧭  1. Introduction: Farming in the Age of Climate Change In a world where clean water is more precious than gold, efficient  rainwater harvesting and plant care systems  are no longer optional — they’re essential. Smart farming doesn’t mean just automating irrigation. It means combining  robotic drones, environmental sensors, and intelligent scheduling  to build a garden that practically takes care of itself. In this guide, we build a  fully functional Garden Manager System  using  C++  that: Captures and conserves rainwater Uses  robotic drones and sensors  to monitor crop health Integrates a  real-time UI  with progress bars and alerts Includes  timers  for scheduling plant growth and drone tasks Plays  interactive sounds  based on crop state and events Whether you'r...
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McDonald's Style Website Template Using C++ Crow

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McDonald's Style Website Template Using C++ Crow

Overview

This tutorial will guide you through creating a McDonald's-style website template using C++ Crow. The template includes:

  • Two beef burgers: Big Mac and Quarter Pounder
  • A discount system (e.g., "20% OFF on Big Mac!")
  • Styling similar to McDonald's branding

Installing Dependencies

Linux (Ubuntu)

First, install Crow and Boost:

sudo apt update  
sudo apt install libboost-all-dev

Windows

Use vcpkg to install Boost:

vcpkg install boost

Creating a C++ Web Server with Discounts

Create a file named server.cpp and paste the following code:

#include "crow_all.h"
#include <unordered_map>

struct Burger {
    std::string name;
    double price;
    double discount; // Discount percentage (e.g., 20% -> 0.2)
};

// Create a menu with two beef burgers and their discounts
std::unordered_map<std::string, Burger> menu = {
    {"bigmac", {"Big Mac", 5.99, 0.2}},  // 20% OFF
    {"quarterpounder", {"Quarter Pounder", 6.49, 0.0}}  // No discount
};

// Function to generate the HTML for the menu
std::string generateMenuHtml() {
    std::string html = "<!DOCTYPE html><html lang='en'><head>"
                       "<title>McDonald's Menu</title>"
                       "<style>"
                       "body { font-family: Arial, sans-serif; background-color: #ffcc00; text-align: center; }"
                       "h1 { color: #d91a1a; }"
                       "nav { background: #d91a1a; padding: 10px; }"
                       "nav a { color: white; margin: 10px; text-decoration: none; }"
                       ".menu { margin-top: 20px; }"
                       ".menu-item { display: inline-block; padding: 20px; background: white; margin: 10px; border-radius: 10px; }"
                       ".discount { color: green; font-weight: bold; }"
                       "</style></head><body>"
                       "<nav><a href='/'>Home</a> | <a href='/menu'>Menu</a> | <a href='/contact'>Contact</a></nav>"
                       "<h1>McDonald's Menu</h1><div class='menu'>";

    for (const auto& item : menu) {
        const Burger& burger = item.second;
        double discountedPrice = burger.price * (1 - burger.discount);

        html += "<div class='menu-item'><h3>" + burger.name + "</h3><p>Price: $" +
                std::to_string(burger.price) + "</p>";

        if (burger.discount > 0) {
            html += "<p class='discount'>Promo: " + std::to_string(static_cast<int>(burger.discount * 100)) +
                    "% OFF!</p>";
            html += "<p><b>Now: $" + std::to_string(discountedPrice) + "</b></p>";
        }

        html += "</div>";
    }

    html += "</div></body></html>";
    return html;
}

int main() {
    crow::SimpleApp app;

    // Homepage route
    CROW_ROUTE(app, "/")([]() {
        return "<!DOCTYPE html><html lang='en'>"
               "<head><title>McDonald's</title>"
               "<style>"
               "body { font-family: Arial, sans-serif; background-color: #ffcc00; text-align: center; }"
               "h1 { color: #d91a1a; }"
               "nav { background: #d91a1a; padding: 10px; }"
               "nav a { color: white; margin: 10px; text-decoration: none; }"
               "</style></head><body>"
               "<nav><a href='/'>Home</a> | <a href='/menu'>Menu</a></nav>"
               "<h1>Welcome to McDonald's</h1>"
               "<p>Delicious beef burgers with amazing deals!</p>"
               "</body></html>";
    });

    // Menu route
    CROW_ROUTE(app, "/menu")([]() {
        return generateMenuHtml();
    });

    // Contact page
    CROW_ROUTE(app, "/contact")([]() {
        return "<!DOCTYPE html><html lang='en'>"
               "<head><title>Contact McDonald's</title></head>"
               "<body><h1>Contact Us</h1>"
               "<p>Email: support@mcdonalds.com</p>"
               "<p>Phone: +1 800-555-1234</p>"
               "</body></html>";
    });

    app.port(8080).multithreaded().run();
}

Explanation

Menu System

  • unordered_map stores the Big Mac and Quarter Pounder with their prices and discounts.
  • The generateMenuHtml() function dynamically generates the HTML menu.
  • The Big Mac has a 20% discount, while the Quarter Pounder has no discount.

Routing

  • / → Homepage
  • /menu → Displays the menu with discounts
  • /contact → Contact page

Styling

  • McDonald's theme colors: Yellow (#ffcc00) and Red (#d91a1a)
  • Discounted burgers display a green "Promo" label with the reduced price.

Compile and Run

Compilation

g++ server.cpp -o server -lboost_system -lpthread

Running the Server

./server

Open in Browser

Go to:

http://localhost:8080

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