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;

namespace Bludiště
{
    public partial class Editor : Form
    {
        char[,] bludiste;
        Point start, cil;

        int rozliseni;

        public Editor()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            bludiste = new char[(int)sirka.Value, (int)vyska.Value];

            for (int i = 0; i < sirka.Value; i++)      //vsechno prazdne
            {
                for (int j = 0; j < vyska.Value; j++)
                {
                    bludiste[i, j] = '.';
                }
            }

            bludiste[0, 0] = '&'; start = new Point(0, 0);
            bludiste[(int)sirka.Value - 1, (int)vyska.Value - 1] = '#'; cil = new Point((int)sirka.Value - 1, (int)vyska.Value - 1);

            this.Refresh();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() != DialogResult.OK)
                return;

            StreamReader soubor = new StreamReader(openFileDialog1.FileName);
            string radek = null;

            radek = soubor.ReadLine();

            string[] hodnoty = radek.Split(' ');        //velikost pole
            sirka.Value = Convert.ToInt32(hodnoty[0]); vyska.Value = Convert.ToInt32(hodnoty[1]);
            bludiste = new char[(int)sirka.Value, (int)vyska.Value];

            for (int i = 0; i < sirka.Value; i++)
            {
                radek = soubor.ReadLine();

                int j = 0;
                for (int c = 0; c < radek.Length; c++)      //zapsat kazdy radek
                {
                    if ((radek[c]=='.')||(radek[c]=='X')||(radek[c]=='&')||(radek[c]=='#'))
                    {
                        bludiste[j, i] = radek[c];

                        if (radek[c] == '&')
                        {
                            start = new Point(i, j);
                        }
                        else if (radek[c] == '#')
                        {
                            cil = new Point(i, j);
                        }
                        j++;
                    }
                }
            }

            soubor.Close();

            this.Refresh();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (saveFileDialog1.ShowDialog() != DialogResult.OK)
                return;

            StreamWriter soubor = new StreamWriter(saveFileDialog1.FileName, false);

            soubor.WriteLine(sirka.Value.ToString() + " " + vyska.Value.ToString());

            string radek = null;
            for (int i = 0; i < vyska.Value; i++)
            {
                radek = null;

                for (int j = 0; j < sirka.Value; j++)
                {
                    radek += bludiste[j, i];
                }

                soubor.WriteLine(radek);
            }

            soubor.Close();
        }

        private void Editor_Paint(object sender, PaintEventArgs e)
        {
            if (bludiste == null)       //pokud neni bludiste
                return;

            Graphics kp = e.Graphics;

            for (int i = 0; i < sirka.Value; i++)
            {
                for (int j = 0; j < vyska.Value; j++)
                {
                    if (sirka.Value > vyska.Value)
                        rozliseni = 500 / (int)sirka.Value;
                    else
                        rozliseni = 500 / (int)vyska.Value;

                    Rectangle ctverec = new Rectangle(rozliseni * i + 16, rozliseni * j + 16, rozliseni, rozliseni);

                    switch (bludiste[i, j])
                    {
                        case '.':       //volno
                            kp.FillRectangle(Brushes.White, ctverec);
                            break;
                        case 'X':       //stena
                            kp.FillRectangle(Brushes.DarkBlue, ctverec);
                            break;
                        case '&':       //bila pani
                            kp.FillRectangle(Brushes.White, ctverec);
                            kp.FillEllipse(Brushes.Yellow, ctverec);
                            break;
                        case '#':       //televize
                            kp.FillRectangle(Brushes.White, ctverec);
                            kp.FillEllipse(Brushes.Green, ctverec);
                            break;
                    }
                }
            }
        }

        private void Editor_MouseDown(object sender, MouseEventArgs e)
        {
            if (bludiste == null)
                return;

            Point souradnice = new Point(e.X / rozliseni, e.Y / rozliseni);

            //steny
            if (radioButton1.Checked)
            {
                try
                {
                    if (bludiste[souradnice.X, souradnice.Y] == '.')
                    {
                        bludiste[souradnice.X, souradnice.Y] = 'X';
                    }
                    else if (bludiste[souradnice.X, souradnice.Y] == 'X')
                    {
                        bludiste[souradnice.X, souradnice.Y] = '.';
                    }

                    this.Refresh();
                }
                catch
                { }
            }
            //hracc
            else if (radioButton2.Checked)
            {
                try
                {
                    if ((souradnice == cil) || (souradnice == start))
                        return;

                    bludiste[souradnice.X, souradnice.Y] = '&';
                }
                finally
                {
                    bludiste[start.X, start.Y] = '.';
                    start = souradnice;
                    this.Refresh();
                }
            }
            //dort
            else if (radioButton3.Checked)
            {
                try
                {
                    if ((souradnice == start) || (souradnice == cil))
                        return;

                    bludiste[souradnice.X, souradnice.Y] = '#';
                    bludiste[cil.X, cil.Y] = '.';
                }
                finally
                {
                    cil = souradnice;
                    this.Refresh();
                }
            }
        }
    }
}