Triangle, console APP, C#.txt

using System;
using System.Collections.Generic;
using System.Threading;

namespace _1
{
    class Program
    {
        static void Main()
        {
            Triangle triangle = new Triangle();
            Console.CursorVisible = false;
            TreangleShowInfo info = new TreangleShowInfo();

            info.resetCMD();
            info.strColor("                 ", 5, 0);
            info.strColor(" Треугольник ABC ", 5, 1);
            info.strColor("                 ", 5, 2);

            info.DrawTreangle();
            info.DrawSymbols();

            string[] str = { "Сторона A = ", "Сторона B = ", "  Угол AB = ", "Сторона С = " };
            info.showMainMenuTriangel(triangle, str, 6);

            triangle.sideC();
            info.strColor(Convert.ToString(Math.Round(triangle.getC(), 1)), 18, 10, ConsoleColor.Black, ConsoleColor.White);

            Thread.Sleep(700);

            info.program(triangle);

        }
    }
}
public class Triangle
{
    protected double A, B, C, AB;
    public Triangle(double A, double B, double C, double AB)
    {
        this.A = A;
        this.B = B;
        this.C = C;
        this.AB = AB;
    }
    public Triangle()
    {
        A = 20;
        B = 20;
        C = 20;
        AB = 60;
    }
    public void setA(double A) { this.A = A; }
    public void setB(double B) { this.B = B; }
    public void setC(double C) { this.C = C; }
    public void setAB(double AB) { this.AB = AB; }
    public double getA() { return A; }
    public double getB() { return B; }
    public double getC() { return C; }
    public double getAB() { return AB; }
    public void sideC() { C = Math.Sqrt(Math.Pow(A, 2) + Math.Pow(B, 2) - 2 * A * B * (Math.Cos(AB * 0.0174533))); }
}
class TreangleShowInfo : Triangle
{
    public void DrawPixel(int X, int Y, char symbol = '▲', ConsoleColor colorForeGround = ConsoleColor.Black, ConsoleColor colorBackGround = ConsoleColor.White)
    {
        Console.BackgroundColor = colorBackGround;
        Console.ForegroundColor = colorForeGround;
        Console.SetCursorPosition(X, Y);
        Console.WriteLine(symbol);
    }
    public void DrawTreangle(int X = 38, int y = 3, int value = 10)
    {
        selecktColor(0);
        int defaultY = y;
        for (int x = X; x > (X - value); x--)
        {
            DrawPixel(x, y);
            y++;
        }
        y = defaultY;
        y++;
        for (int x = X; x > (X - value); x--)
        {
            DrawPixel(x, y);
            y++;
        }
        y = defaultY;
        for (int x = X; x < (X + value); x++)
        {
            DrawPixel(x, y);
            y++;
        }
        y = defaultY;
        y++;
        for (int x = X; x < (X + value); x++)
        {
            DrawPixel(x, y);
            y++;
        }
        y--;
        for (int x = (X - value); x <= (X + value); x++)
        {
            DrawPixel(x, y);
        }
        y--;
        for (int x = (X - value + 1); x <= (X + value - 1); x++)
        {
            DrawPixel(x, y);
        }
    }
    public void DrawSymbols(int x = 38, int y = 3, int value = 10)
    {
        selecktColor(0);
        DrawPixel(x - value + 2, y + (value / 2), 'A');
        DrawPixel(x + value - 2, y + (value / 2), 'B');
        DrawPixel(x, y + value + 2, 'C');
    }
    public void strColor(string str, int x, int y, ConsoleColor colorForeGround = ConsoleColor.White, ConsoleColor colorBackGround = ConsoleColor.Black)
    {
        Console.SetCursorPosition(x, y);
        Console.ForegroundColor = colorForeGround;
        Console.BackgroundColor = colorBackGround;
        Console.Write(str);
        selecktColor(0);
        Console.SetCursorPosition(0, 0);

    }
    public void DrawBoxes(int x, int X, int y, int Y, char symbol = ' ')
    {
        for (int i = x; i < X; i++)
        {
            for (int j = y; j < Y; j++)
            {
                DrawPixel(i, j, symbol, ConsoleColor.White, ConsoleColor.Black);
            }
        }
    }
    public void showMainMenuTriangel(Triangle triangle, string[] str, int x = 5, int y = 4, int value = 2, int polimorf = 0)//polimorf 0 = + vvod
    {
        int Y = y;
        for (int i = 0; i < str.Length; i++, y += value)
            strColor(str[i], x, y, ConsoleColor.Black, ConsoleColor.White);
        y = Y;
        for (int i = 0; i < str.Length; i++, y += value)
        {
            strColor(str[i], x, y, ConsoleColor.White, ConsoleColor.Black);
            Console.SetCursorPosition(str[i].Length + x, y);
            if (polimorf == 0)
            {
                switch (i)
                {
                    case 0:
                        triangle.setA(Convert.ToDouble(Console.ReadLine()));
                        break;
                    case 1:
                        triangle.setB(Convert.ToDouble(Console.ReadLine()));
                        break;
                    case 2:
                        triangle.setAB(Convert.ToDouble(Console.ReadLine()));
                        break;
                }
            }
            else
            {
                switch (i)
                {
                    case 0:
                        Console.WriteLine(triangle.getA());
                        break;
                    case 1:
                        Console.WriteLine(triangle.getB());
                        break;
                    case 2:
                        Console.WriteLine(triangle.getAB());
                        break;
                    case 3:
                        Console.WriteLine(Math.Round(triangle.getC(), 1));
                        break;
                }
            }
            strColor(str[i], x, y, ConsoleColor.Black, ConsoleColor.White);
        }
    }
    public void selecktColor(int i)
    {
        switch (i)
        {
            case 0:
                Console.BackgroundColor = ConsoleColor.White;
                Console.ForegroundColor = ConsoleColor.Black;
                break;
            case 1:
                Console.BackgroundColor = ConsoleColor.Black;
                Console.BackgroundColor = ConsoleColor.White;
                break;
        }
    }
    public void resetCMD(int x = 50, int y = 20)
    {
        Console.SetWindowSize(x, y);
        selecktColor(0);
        for (int i = 0; i < x; i++)
        {
            for (int j = 0; j < y; j++)
            {
                Console.SetCursorPosition(i, j);
                Console.Write(" ");
            }
        }
    }
    public int selecktStr(string[] str, int x, int y, int value = 2, ConsoleColor colorForeGround = ConsoleColor.White, ConsoleColor colorBackGround = ConsoleColor.Black, int polimprf = 0)
    {
        int choiseEntr = 1;
        ConsoleKey key = ConsoleKey.UpArrow;
        while (true)
        {
            switch (key)
            {
                case ConsoleKey.DownArrow: choiseEntr++; break;
                case ConsoleKey.UpArrow: choiseEntr--; break;
                case ConsoleKey.Enter: return choiseEntr;
            }
            if (choiseEntr < 0) { choiseEntr = 0; }
            if (choiseEntr >= str.Length) { choiseEntr = str.Length - 1; }
            for (int i = 0, j = 0; i < str.Length; i++, j += value)
            {
                switch (polimprf)
                {
                    case 0:
                        if (i == choiseEntr)
                        {
                            strColor(str[i], x, y + j, colorForeGround, colorBackGround);
                        }
                        else
                        {
                            strColor(str[i], x, y + j, colorBackGround, colorForeGround);
                        }
                        break;
                    case 1:
                        if (i == choiseEntr)
                        {
                            strColor(str[i], x, y + j, ConsoleColor.Black, ConsoleColor.White);
                        }
                        else
                        {
                            strColor("     ", x, y + j, colorBackGround, colorForeGround);
                        }
                        break;
                }
            }
            key = Console.ReadKey().Key;
        }
    }
    public void menuTriangleTransform(int choiseEntr)
    {
        if (choiseEntr == 0)
        {
            resetCMD();
            Console.SetCursorPosition(23, 3);
            strColor("МЕНЮ", 23, 10, ConsoleColor.White, ConsoleColor.Black);
            Thread.Sleep(500);
            resetCMD();
            DrawBoxes(15, 35, 0, 20);
            strColor("МЕНЮ", 23, 1, ConsoleColor.White, ConsoleColor.Black);
            while (true)
            {
                string[] str = { "   SUM   ", "   UM    ", "  UNSUM  ", "   DEL   " };
                selecktStr(str, 20, 5, 2, ConsoleColor.Black, ConsoleColor.White);
            }
        }
        else if (choiseEntr == 1)
        {
            resetCMD();
            Console.SetCursorPosition(23, 7);
            Console.WriteLine("EXIT");
            Console.ReadKey();
            Console.SetCursorPosition(0, 0);
        }
    }
    public void sumTriangle(Triangle triangle)
    {
        string value = selectValue();
        meinMenu(triangle);
        string[] str2 = { "+ " + value, "+ " + value, "+ " + value};
        int seleckt = selecktStr(str2, 19 + Convert.ToString(Math.Round(triangle.getC(), 1)).Length, 4, polimprf: 1);
        switch (seleckt)
        {
            case 0:
                triangle.setA(triangle.getA() + Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 1:
                triangle.setB(triangle.getB() + Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 2:
                triangle.setAB(triangle.getAB() + Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
        }
    }
    public void subTriangle(Triangle triangle)
    {
        string value = selectValue();
        meinMenu(triangle);
        string[] str2 = { "- " + value, "- " + value, "- " + value };
        int seleckt = selecktStr(str2, 19 + Convert.ToString(Math.Round(triangle.getC(), 1)).Length, 4, polimprf: 1);
        switch (seleckt)
        {
            case 0:
                triangle.setA(triangle.getA() - Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 1:
                triangle.setB(triangle.getB() - Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 2:
                triangle.setAB(triangle.getAB() - Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
        }
    }
    public void mulTriangle(Triangle triangle)
    {
        string value = selectValue();
        meinMenu(triangle);
        string[] str2 = { "* " + value, "* " + value, "* " + value};
        int seleckt = selecktStr(str2, 19 + Convert.ToString(Math.Round(triangle.getC(), 1)).Length, 4, polimprf: 1);
        switch (seleckt)
        {
            case 0:
                triangle.setA(triangle.getA() * Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 1:
                triangle.setB(triangle.getB() * Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 2:
                triangle.setAB(triangle.getAB() * Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
        }
    }
    public void divTriangle(Triangle triangle)
    {
        string value = selectValue();
        meinMenu(triangle);
        string[] str2 = { ": " + value, ": " + value, ": " + value };
        int seleckt = selecktStr(str2, 19 + Convert.ToString(Math.Round(triangle.getC(), 1)).Length, 4, polimprf: 1);
        switch (seleckt)
        {
            case 0:
                triangle.setA(triangle.getA() / Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 1:
                triangle.setB(triangle.getB() / Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
            case 2:
                triangle.setAB(triangle.getAB() / Convert.ToDouble(value));
                triangle.sideC();
                meinMenu(triangle);
                Thread.Sleep(200);
                program(triangle);
                break;
        }
    }
    public string selectValue()
    {
        resetCMD();
        DrawBoxes(10, 40, 5, 13);
        strColor("Введите число", 12, 7);
        Console.SetCursorPosition(26, 7);
        Console.BackgroundColor = ConsoleColor.Black;
        Console.ForegroundColor = ConsoleColor.White;
        string value = Console.ReadLine();
        return value;
    }
    public void meinMenu(Triangle triangle)
    {
        resetCMD();
        strColor("                 ", 5, 0);
        strColor(" Треугольник ABC ", 5, 1);
        strColor("                 ", 5, 2);
        DrawTreangle();
        DrawSymbols();
        string[] str = { "Сторона A = ", "Сторона B = ", "  Угол AB = ", "Сторона С = " };//отдельный метод
        strColor(Convert.ToString(triangle.getA()), x: 10, y: 10);
        showMainMenuTriangel(triangle, str, 6, polimorf: 1);
    }
    public void program(Triangle triangle)
    {
        strColor("Долбоеб?", 100, 10);
        strColor("↕", 4, 14, ConsoleColor.Black, ConsoleColor.White);
        string[] str = { "MENU           ", "EXIT           " };
        int seleckt = selecktStr(str, 6, 13);
        switch (seleckt)
        {
            case 0:
                resetCMD();
                Console.SetCursorPosition(23, 3);
                strColor("МЕНЮ", 23, 10);
                Thread.Sleep(500);
                resetCMD();
                DrawBoxes(15, 35, 0, 20);
                strColor("МЕНЮ", 23, 1);
                while (true)
                {
                    string[] str2 = { "   SUM   ", "   SUB   ", "   MUL   ", "   DIV   " };
                    int seleckt2 = selecktStr(str2, 20, 5, colorForeGround: ConsoleColor.Black, colorBackGround: ConsoleColor.White);
                    switch (seleckt2)
                    {
                        case 0:
                            sumTriangle(triangle);
                            break;
                        case 1:
                            subTriangle(triangle);
                            break;
                        case 2:
                            mulTriangle(triangle);
                            break;
                        case 3:
                            divTriangle(triangle);
                            break;
                    }
                }
            case 1:
                resetCMD();
                Console.SetCursorPosition(23, 7);
                Console.WriteLine("EXIT");
                Thread.Sleep(200);
                Console.SetCursorPosition(1, 1);
                Environment.Exit(0);
                break;
        }
    }
}