/*Prectete si po sobe zadani.. Testovaci soubory neobsahujou \r\n a dokonce ani nejsou textove soubory!!! Tohle mi vzalo dost velkou cast casu*/

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Text.RegularExpressions;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        string[,] points = new string[80, 80];
        int width = 80;
        int height = 80;
        string maze = "";
        int Xsel = 1;
        int Ysel = 1;
        string[] lines = new string[81];

        private void Form1_Load(object sender, EventArgs e)
        {
            pictureBox1.Invalidate();
        }

        //save
        private void button1_Click(object sender, EventArgs e)
        {
            for (int x = 0; x < width; x++)
            {
                for (int y = 0; y < height; y++)
                {
                    //nedokonceno
                }
            }
        }

        //load
        private void button2_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                string path = openFileDialog1.FileName;
                using (FileStream fs = File.OpenRead(path))
                {
                    byte[] buffer = new byte[1024];
                    UTF8Encoding temp = new UTF8Encoding(true);
                    while (fs.Read(buffer, 0, buffer.Length) > 0)
                    {
                        maze += temp.GetString(buffer);
                    }
                }
                lines = Regex.Split(maze, "\r\n");
                string[] cosi = new string[2];
                cosi = lines[0].Split(' ');
                try
                {
                    width = Convert.ToInt32(cosi[0]);
                    height = Convert.ToInt32(cosi[1]);
                }
                catch
                {
                    MessageBox.Show("Error");
                }
            }
            pictureBox1.Invalidate();
            //nedokonceno
        }

        //Place Wall
        private void button3_Click(object sender, EventArgs e)
        {
            if (points[Xsel - 1, Ysel - 1] == "&" || points[Xsel - 1, Ysel - 1] == "#")
            {
                MessageBox.Show("Can't replace Lady/TV");
            }
            else
            {
                points[Xsel-1, Ysel-1] = "X";
            }
            pictureBox1.Invalidate();
        }

        //Place Spy
        private void button6_Click(object sender, EventArgs e)
        {
            if (points[Xsel - 1, Ysel - 1] == "&" || points[Xsel - 1, Ysel - 1] == "#")
            {
                MessageBox.Show("Can't replace Lady/TV");
            }
            else
            {
                points[Xsel-1, Ysel-1] = "@";
            }
            pictureBox1.Invalidate();
        }

        //Path of spy
        private void button8_Click(object sender, EventArgs e)
        {
            
        }

        //Move
        private void button4_Click(object sender, EventArgs e)
        {
            Form3 form = new Form3();
            form.ShowDialog();
            string help = points[Xsel - 1, Ysel - 1];
            if (form.x < width || form.y < height)
            {
                points[Xsel - 1, Ysel - 1] = points[form.x, form.y];
                points[form.x, form.y] = help;
            }
            else
            {
                MessageBox.Show("Error");
            }
        }

        //Remove
        private void button5_Click(object sender, EventArgs e)
        {
            if (points[Xsel-1, Ysel-1] == "&" || points[Xsel-1, Ysel-1] == "#")
            {
                MessageBox.Show("Can't remove Lady/TV");
            }
            else
            {
                points[Xsel-1, Ysel-1] = "";
            }
            pictureBox1.Invalidate();
        }

        //New maze
        private void button9_Click(object sender, EventArgs e)
        {
            Form2 form = new Form2();
            form.ShowDialog();
            width = form.width;
            height = form.height;
            Xsel = 1;
            Ysel = 1;
            points[0, 0] = "&";
            points[width-1, height-1] = "#";
            pictureBox1.Invalidate();
        }

        //Selection
        private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.X / 5 + 1 <= width & e.Y / 5 + 1 <= height)
            {
                Xsel = e.X / 5 + 1;
                Ysel = e.Y / 5 + 1;
            }
            pictureBox1.Invalidate();
        }

        //Repaint
        private void pictureBox1_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            Pen Line = new Pen(Brushes.Black);
            Brush Sel = new SolidBrush(Color.Yellow);
            Brush Wall = new SolidBrush(Color.Black);
            Brush Spy = new SolidBrush(Color.Red);
            Brush Lady = new SolidBrush(Color.Blue);
            Brush TV = new SolidBrush(Color.Green);
            //horizontal
            for (int x = 0; x <= width * 5; x += 5)
            {
                for (int y = 0; y <= height * 5; y += 5)
                {
                    Point p1 = new Point();
                    Point p2 = new Point();
                    p1.X = x;
                    p1.Y = y;
                    p2.X = width;
                    p2.Y = y;
                    g.DrawLine(Line, p1, p2);
                }
            }
            //vertical
            for (int x = 0; x <= width * 5; x += 5)
            {
                for (int y = 0; y <= height * 5; y += 5)
                {
                    Point p1 = new Point();
                    Point p2 = new Point();
                    p1.X = x;
                    p1.Y = y;
                    p2.X = x;
                    p2.Y = height;
                    g.DrawLine(Line, p1, p2);
                }
            }
            g.FillRectangle(Sel, (Xsel-1)*5+1, (Ysel-1)*5+1, 4, 4);
            for (int x = 0; x < width; x++)
            {
                for (int y = 0; y < height; y++)
                {
                    if (points[x, y] == "X")
                    {
                        g.FillRectangle(Wall, x * 5 + 1, y * 5 + 1, 4, 4);
                    }
                    if (points[x, y] == "&")
                    {
                        g.FillRectangle(Lady, x * 5 + 1, y * 5 + 1, 4, 4);
                    }
                    if (points[x, y] == "@")
                    {
                        g.FillRectangle(Spy, x * 5 + 1, y * 5 + 1, 4, 4);
                    }
                    if (points[x, y] == "#")
                    {
                        g.FillRectangle(TV, x * 5 + 1, y * 5 + 1, 4, 4);
                    }
                }
            }
        }
    }
}