using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System.Runtime.InteropServices;

namespace IcyTD
{
    class Level
    {
    // Funktionierend
    int[,] map = new int[,]
    {
            {0,0,1,0,0,0,0,0,},
            {0,0,1,1,0,0,0,0,},
            {0,0,0,1,1,0,0,0,},
        {0,0,0,0,1,0,0,0,},
            {0,0,0,1,1,0,0,0,},
            {0,0,1,1,0,0,0,0,},
            {0,0,1,0,0,0,0,0,},
            {0,0,1,1,1,1,1,1,},
    };

        /* Meine Methode mit Fehler:
    int[,] iMap;

        public Level(int iLevel)
        {
            iMap = ReadLevel(iLevel);
        }*/

        public List<Texture2D> tileTextures = new List<Texture2D>();

        public void AddTexture(Texture2D texture)
        {
            tileTextures.Add(texture);
        }

        public int Width
        {
            get { return iMap.GetLength(1); }
        }

        public int Height
        {
            get { return iMap.GetLength(0); }
        }

        public void Draw(SpriteBatch batch)
        {
            for (int x = 0; x < Width; x++)
            {
                for (int y = 0; y < Height; y++)
                {
                    int textureIndex = iMap[y, x];

                    if (textureIndex == -1) continue;

                    Texture2D texture = tileTextures[textureIndex];

                    batch.Draw(texture, new Rectangle(x * 16, y * 16, 16, 16), Color.White);
                }
            }
        }

        private int[,] ReadLevel(int iLevel)
        {
            string iFileName = "Level\\" + iLevel.ToString() + ".txt";
            string[] sTempStringArray;
            string[,] sTempMap;
            int[,] iTempMap;

            List<String> lTempList = new List<String>();
            String lLines = String.Empty;
            StreamReader lStreamReader = null;
            if (File.Exists(iFileName))
            {
                lStreamReader = new StreamReader(iFileName, Encoding.UTF7);
                while ((lLines = lStreamReader.ReadLine()) != null)
                {
                    lTempList.Add(lLines);
                }
            }
            lStreamReader.Close();

            sTempMap = new string[lTempList.Count, (lTempList[0].Length - 1) / 2 + 1];
            iTempMap = new int[lTempList.Count, (lTempList[0].Length - 1) / 2 + 1];

            for (int i = 0; i < lTempList.Count; i++)
            {
                sTempStringArray = lTempList[i].Split(',');
                for (int j = 0; j < sTempStringArray.Length; j++)
                {
                    sTempMap[i, j] = sTempStringArray[j];
                }
            }

            for (int i = 0; i < lTempList.Count; i++)
            {
                for (int j = 0; j < (lTempList[0].Length - 1) / 2 + 1; j++)
                {
                    iTempMap[i, j] = Convert.ToInt32(sTempMap[i, j]);
                }
            }

            return iTempMap;
        }
    }
}