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 WindowsFormsApplication1
{


    public partial class MainForm : Form
    {
        Map map = new Map(0,0);
        Bitmap tileMap = (Bitmap)Bitmap.FromFile("tilemap.png");
        int vScrollValue = 0;
        int hScrollValue = 0;
        string fileName = "";
        public MainForm(){



            InitializeComponent();
        }

        public int[][] copyTiles(Map map, int nWidth, int nHeight)
        {
            int[][] nTiles = new int[nWidth][];
            for (int i = 0; i < nWidth; i++)
            {
                nTiles[i] = new int[nHeight];


                for (int j = 0; j < nTiles[i].Length; j++)
                {
                    if (i < map.tiles.Length)
                    {
                        if (j < map.tiles[i].Length)
                            nTiles[i][j] = map.tiles[i][j];
                    }
                }
            }

            return nTiles;
        }

        private void resizeButton_Click(object sender, EventArgs e)
        {

           map.tiles = copyTiles(map, Int32.Parse(widthBox.Text), Int32.Parse(heightBox.Text));
           MapPanel.Refresh();
        }

        private void MapPanel_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            GraphicsUnit units = GraphicsUnit.Pixel;

            for (int i = 0; i < map.tiles.Length; i++)
            {
                for (int j = 0; j < map.tiles[i].Length; j++)
                {
                    Rectangle destRect = new Rectangle((i * map.tileSize) - hScrollValue, (j * map.tileSize) - vScrollValue, 30, 30);
                    g.DrawImage(tileMap, destRect, (map.tiles[i][j] * 50), 0, 50, 50, units);
                }
            }
        }

        private void mapScrollV_Scroll(object sender, ScrollEventArgs e)
        {
            vScrollValue = ((map.tiles[0].Length * map.tileSize) / 100) * mapScrollV.Value;
           MapPanel.Refresh();
        }

        private void mapScrollH_Scroll(object sender, ScrollEventArgs e)
        {
            hScrollValue = ((map.tiles.Length * map.tileSize) / 100) * mapScrollH.Value;
            MapPanel.Refresh();
        }

        private void saveButton_Click(object sender, EventArgs e)
        {
            saveFileDialog1.ShowDialog();

            FileStream stream = new FileStream(fileName, FileMode.Create);
            //TextWriter tw = new StreamWriter("test.txt");
            BinaryWriter writer = new BinaryWriter(stream);
            // write a line of text to the file

            writer.Write(map.tiles.Length);
            writer.Write(map.tiles[0].Length);

            for (int i = 0; i < map.tiles.Length; i++)
            {
                for (int j = 0; j < map.tiles[0].Length; j++)
                {
                    writer.Write(map.tiles[i][j]);
                }
            }

            // close the stream
            writer.Close();
        }

        private void saveFileDialog1_FileOk(object sender, CancelEventArgs e)
        {

            fileName = saveFileDialog1.FileName;
        }

        private void MapPanel_MouseDown(object sender, MouseEventArgs e)
        {
            map.tiles[(int)(System.Windows.Forms.Cursor.Position.X / map.tileSize)][(int)(System.Windows.Forms.Cursor.Position.Y / map.tileSize)] = 1;
            MapPanel.Refresh();
        }
    }

    public class Map
    {
        public int[][] tiles;
        public int tileSize = 30;

        public Map(int width, int height)
        {
            tiles = new int[width][];
            for (int i = 0; i < width; i++)
            {
                tiles[i] = new int[height];
            }
        }
    }
}