using System;

public class Program

{   

    public static void Main()

    {

        // These are the Methods for each shape and the introduction of the code

        Introduction();

        Rectangle();

        Triangle();

        Circle();

        Hexagon();

    }

    static void Introduction()

    {

        Console.WriteLine("*** Painting Calulator ***\n"); //This area of code states to the user that it is a Painting calculator by pasting in the text through Console.WriteLine

        Console.WriteLine("This application will calculate the area and cost to paint rectangle, circle, triangle, and hexagon shapes that have been drawn on the asphalt of the school yard.\n");// This explains what the code is going to be about

    }

    static void Rectangle()

    {

    Console.WriteLine("*** Rectangle ***\n");

    Console.WriteLine("Enter the length of the rectangle in meters:\n");//Asks the user for the length of the rectangle

    double rectangleLength = Convert.ToDouble(Console.ReadLine()); //Reads what the user entered and stores it into a double variable named rectangleLength

    Console.WriteLine("Enter the width of the rectangle in metres:\n");//Asks the user for the width of the rectangle

    double rectangleWidth = Convert.ToDouble(Console.ReadLine()); //Reads what the user entered and stores it into a double variable named rectangleWidth

    double rectangleArea = rectangleLength * rectangleWidth;//Multiplying two variables (rectangleLength and rectangleWidth) to store it into a double variable named rectangleArea

    double rectangleArea2 = Math.Round(rectangleArea, 1); //We convert the regular m into m^2 by making it to the power of 2

    Console.WriteLine("The area to paint is " + rectangleArea2 + "m\u00B2\n");//Pastes in the created variable rectangleArea2 in with the text, after the 'm' the '\u00B2' makes the console show the 'm' to the power of 2.

    double litres = rectangleArea2/10; //1 litre is equal to 10m^2 so the formula to find a litre is to divide rectangleArea2 by 10, we do this by adding another double variable and calling it 'litres'

    double litresRounded = Math.Round(litres, 1); //Rounds the litres to 1 decimal place to do this we create another double variable called litresRounded and equal it to Math.Round(litres, 1)

    Console.WriteLine("You will need " + litresRounded + " litres of paint to cover the rectangle.\n"); //Pasting in the rounded litres within the text

    Console.WriteLine("Enter the cost per litre of paint in dollars:\n"); //Asks for the cost per litre from the user

    double costPerLitre = Convert.ToDouble(Console.ReadLine()); //Reads what the user entered and stores it into a double variable

    double litresTotalCost = litres * costPerLitre; //Multiplies the litres by the costPerLitre to find out the total cost it would take to fill up the users shape

    double litresTotalCost2 = Math.Round(litresTotalCost, 1); //Rounds litresTotalCost variable to 1 decimal place and names the new variable litresTotalCost2

    Console.WriteLine("The total cost to paint the rectangle is: " + litresTotalCost2 + "\n"); //Pastes in the variable (litresTotalCost2) within the text

    }

    static void Triangle()

    {

    Console.WriteLine("*** Triangle ***\n");

    Console.WriteLine("Enter the base of the triangle:\n"); //This area of code asks the user to enter the base of the triangle, it does not store any values

    double triangleBase = Convert.ToDouble(Console.ReadLine());

    Console.WriteLine("Enter the height of the triangle:\n");

    double triangleHeight = Convert.ToDouble(Console.ReadLine());

    double triangleArea = Math.Round(0.5*triangleBase*triangleHeight, 1); //This area of code multiplies 0.5 with the triangleBase variable and triangleHeight variable, it then Rounds it all to 1 decimal place

    Console.WriteLine("The area to paint is " + triangleArea + "m\u00B2\n");

    double litres = triangleArea/10; //This area of code divides the triangle area by 10 to find the litres

    double litres2 = Math.Round(litres, 1); //This area of code rounds the litres variable to 1 decimal place

    Console.WriteLine("You will need " + litres2 + " litres of paint to cover the triangle.\n");

    Console.WriteLine("Enter the cost per litre of paint in dollars:\n");

    double costPerLitre = Convert.ToDouble(Console.ReadLine()); //This area of code reads what the user inputed into the console and stores it into a double variable

    double triangleTotalCost = litres * costPerLitre; 

    double triangleTotalCost2 = Math.Round(triangleTotalCost, 1);

    Console.WriteLine("The total cost to paint the triangle is: " + triangleTotalCost2 + "\n"); //This area of code pastes the triangleTotalCost2 within the text

    }

    static void Circle()

    {

    Console.WriteLine("*** Circle ***\n");

    Console.WriteLine("Enter the radius of the Circle:\n"); //This area of code asks the user to enter the radius of their circle

    double circleRadius = Convert.ToDouble(Console.ReadLine());

    double circleArea = Math.Round(circleRadius*Math.PI, 1); //This area of code multiplies the circleRadius variable by pi and rounds it to 1 decimal place

    Console.WriteLine("The area to paint is " + circleArea + "m\u00B2\n"); 

    double litres = circleArea/10;

    double litres2 = Math.Round(litres, 1);

    Console.WriteLine("You will need " + litres2 + " litres of paint to cover the circle.\n"); //This section of code pastes litres2 within the text. '\n' creates an extra empty space after the code is finsihed typing

    Console.WriteLine("Enter the cost per litre of paint in dollars:\n");

    double costPerLitre = Convert.ToDouble(Console.ReadLine()); //This area of code reads what the user entered and stores it into a double variable named costPerLitre

    double circleTotalCost = litres * costPerLitre; //This section of code multiplies the litres variable with the costPerLitre variable and stores it into a double variable named circleTotalCost

    double circleTotalCost2 = Math.Round(circleTotalCost, 1); //This section of code rounds circleTotalCost to 1 decimal place

    Console.WriteLine("The total cost to paint the circle is: " + circleTotalCost2 + "\n");

    }

    static void Hexagon()

    {

        Console.WriteLine("*** Hexagon ***\n");

        Console.WriteLine("Enter the side length of the Hexagon:\n"); // This code prints a question for the user

        double hexagonSideLength = Convert.ToDouble(Console.ReadLine()); // This code reads what the user entered into the console and stores it into a variable named hexagonSideLength

        double hexagonArea = Math.Round(3*Math.Sqrt(3)*Math.Pow((hexagonSideLength), 2)/2, 1); //This code puts the variable hexagonSideLength named hexagonArea within another double variable named hexagi and does the formula for the hexagon area

        Console.WriteLine("The area to paint is " + hexagonArea + "m\u00B2\n"); //This code prints out the text and pastes hexagonArea within that text

        double litres = hexagonArea/10; //This area of code divides the hexagonArea variable by 10 to find the litres

        double litres2 = Math.Round(litres, 1);

        Console.WriteLine("You will need " + litres2 + " litres of paint to cover the hexagon.\n");

        Console.WriteLine("Enter the cost per litre of paint in dollars:\n");

        double costPerLitre = Convert.ToDouble(Console.ReadLine()); //This code stores what the user entered into the variable

        double hexagonTotalCost = litres * costPerLitre;

        double hexagonTotalCost2 = Math.Round(hexagonTotalCost, 1); //This code rounds the variable hexagonTotalCost to 1 decimal place

        Console.WriteLine("The total cost to paint the hexagon is: " + hexagonTotalCost2 + "\n");

    }

}