using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace Q2_VisualisingGraphs_V1
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Declare variables
            int scaleX = 10;
            int scaleY = 5;

            int[,] coords = { {0, 0}, {1, 1}, {2, 2}, {3, 2}, {4, 1}, {5, 0}, {6, -1}, {7, -2}, {8, -2}, {9, -1}, {10, 0} };

            for (int y = scaleY; y >= -scaleY; y--)
            {
                Console.Write(y.ToString().PadLeft(2) + "|");

                if (y == 0)
                {
                    //Write the x axis
                    Console.Write("+");
                    for (int x = 0; x < scaleX; x++)
                    {
                        Console.Write("-");
                    }
                    Console.WriteLine("-");
                }

                //Loop to check for points
                for (int x = 0; x <= scaleX; x++)
                {
                    //If y = 0 don't plot as the x axis causes issues
                    if (y == 0)
                    {
                        Console.Write(" ");
                        continue;
                    }

                    //Check if the coordinate is in the array
                    bool isPointPlotted = false;
                    for (int i = 1; i < coords.GetLength(0); i++)
                    {
                        if (coords[i, 0] == x && coords[i, 1] == y)
                        {
                            isPointPlotted = true;
                            break;
                        }
                    }
                    //If the point is correct place an x else leave empty
                    if (isPointPlotted)
                    {
                        Console.Write("x");
                    }
                    else
                    {
                        Console.Write(" ");
                    }
                }
                Console.WriteLine();
            }
            //Keep the program open
            Console.ReadLine();
        }
    }
}

//Really struggled on this part so I rewrote the whole program as my old approach was confusing me