using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework;
using tAC_Engine;

namespace Game.Astropolis.HackerHavoc
{
    /// <summary>
    /// This class stores all the information needed to interact with and display a room
    /// </summary>
    class Room
    {
       
        public const float ROOM_WIDTH = 10;
        public const float ROOM_HEIGHT = 10;
        private Vector2 mTileSize;
        private Focus camera;

        List<List<Tile>> mTiles;
        Viewport mDrawSpace;
        Player mplayer;

        public Room(String pIn, Viewport pDrawSpace)
        {
            //Calculates the size of a tile.
            //mTileSize.Y = pDrawSpace.Height / ROOM_HEIGHT;
            //mTileSize.X = pDrawSpace.Width / ROOM_WIDTH;
            mTileSize.Y = 75;
            mTileSize.X = 75;
            mDrawSpace = pDrawSpace;

            if (pIn.Equals("Default"))
            {
                mTiles = new List<List<Tile>>();

                List<Tile> row = null;
                List<Tile> lastRow = null;
                Tile t = null;
                for (int a = 0; a < ROOM_HEIGHT; a++)
                {
                    row = new List<Tile>();

                    for (int b = 0; b < ROOM_WIDTH; b++)
                    {

                        if (t == null)
                        {
                            t = new Tile();
                            t.name = a + " , " + b;
                            t.PositionReferfence = Tile.PositionRef.Head;
                            t.Position = new Vector3(mTileSize.X/2.0f, mTileSize.Y/2.0f,0);// Vector3.Zero;
                            t.Width = mTileSize.X;
                            t.Height = mTileSize.Y;
                            row.Add(t);
                        }
                        else if (b == 0 && lastRow != null)
                        {
                            Tile temp = new Tile();
                            temp.name = a + " , " + b;
                            temp.PositionReferfence = Tile.PositionRef.Top;
                            temp.Attach = lastRow[0];
                            Vector3 pos = temp.Attach.Position;
                            //pos.X = pos.Position.X;
                            pos.Y = pos.Y + mTileSize.Y;
                            temp.Position = pos;
                            temp.Width = mTileSize.X;
                            temp.Height = mTileSize.Y;
                            row.Add(temp);

                            t = temp;
                        }
                        else
                        {
                            Tile temp = new Tile();
                            temp.name = a + " , " + b;
                            temp.PositionReferfence = Tile.PositionRef.Left;
                            temp.Attach = t;
                            Vector3 pos = temp.Attach.Position;
                            pos.X = pos.X + mTileSize.X;
                            //pos.Y = pos.Position.Y;
                            temp.Position = pos;
                            temp.Width = mTileSize.X;
                            temp.Height = mTileSize.Y;
                            row.Add(temp);

                            t = temp;
                        }

                    }
                    

                    mTiles.Add(row);
                    lastRow = row;
                }
            }
            mplayer = new Player(TextureManager.Load(@"Content\MiniGames\Cheetah"),Vector3.Zero,new Vector3(50,50,1));
            
            camera = mplayer;
            
            camera.CameraPosition = Vector3.Zero;
        }

        //This will update the players interaction in the room and all the interactives.
        public void Update()
        {
            Vector3 pos = camera.CameraPosition;

            if (InputState.IsKeyDown(Microsoft.Xna.Framework.Input.Keys.Up))
            {
                pos.Y -= 1;
            }

            if (InputState.IsKeyDown(Microsoft.Xna.Framework.Input.Keys.Down))
            {
                pos.Y += 1;
            }

            if (InputState.IsKeyDown(Microsoft.Xna.Framework.Input.Keys.Left))
            {
                pos.X -= 1;
            }

            if (InputState.IsKeyDown(Microsoft.Xna.Framework.Input.Keys.Right))
            {
                pos.X += 1;
            }

            camera.CameraPosition = pos;
        }

        
        //This draw method will draw all the tiles.
        //The center of the viewport will be the tile that the focus is on. 
        public void Draw(SpriteBatch pBatch)
        {
            Viewport old = GenericBaseApplication.GameManager.GraphicsDevice.Viewport;
            GenericBaseApplication.GameManager.GraphicsDevice.Viewport = mDrawSpace;
            SpriteBatch s = new SpriteBatch(GenericBaseApplication.GameManager.GraphicsDevice);

            Vector3 offset = camera.CameraPosition;
            offset.X = mDrawSpace.Width / 2 - offset.X;
            offset.Y = mDrawSpace.Height / 2 - offset.Y;
            s.Begin();
            for (int a = 0; a < ROOM_HEIGHT; a++)
            {
                for (int b = 0; b < ROOM_WIDTH; b++)
                {
                    mTiles[a][b].Draw(s, offset);
                }
            }
            //new Vector3(mDrawSpace.Width/2,mDrawSpace.Height/2,1)
            mplayer.Draw(s,offset);
            s.End();


            GenericBaseApplication.GameManager.GraphicsDevice.Viewport = old;
        }

   
    }
}