/*
 * ControlsScreen.cs
 * Authors: Karl Orosz
 * Copyright (c) 2007-2008 Cornell University

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

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

namespace StarJack
{
    class ControlsScreen:GameScreen
    {

        public static String TextureDirectory = @"Texture\\";

        List<string> mMenuItems = new List<string>();
        //int mItemSelected = 0;
        SpriteBatch mSpriteBatch;
        SpriteFont mSpriteFont;

        //public int curWorld;
        //public int curLevel;
        //public int curRoom;

        Entity mBackground;
        Entity mMenuBackground;

        InputHandler inputHandler;

        //The list of the components that this screen will own
        List<GameComponent> mComponents;

        public ControlsScreen()
        {
        }

        /// <summary>
        /// Allows the game to perform any initialization it needs to before starting to run.
        /// This is where it can query for any required services and load any non-graphic
        /// related content.  Calling base.Initialize will enumerate through any components
        /// and initialize them as well.
        /// </summary>
        public override void Initialize()
        {
            Entity.RootDirectory = RootDirectory;

            mComponents = new List<GameComponent>();

            inputHandler = GetInputHandler();

            inputHandler.Initialize();
            inputHandler.BindButton(Keys.Space, Trigger.Activated, (int)SJInputEvent.ExitControlMenu);

            mBackground = new Entity("Back");
            mBackground.TextureName = "Square";
            mBackground.Width = 800;
            mBackground.Height = 600;
            mBackground.Color = new Color(0, 0, 0, 155);
            mBackground.X = 0;
            mBackground.Y = 0;
            
            

            mMenuBackground = new Entity("MenuBack");
            mMenuBackground.TextureName = "Controls";
            mMenuBackground.X = 80;
            mMenuBackground.Y = 60;
            mMenuBackground.Width = 640;
            mMenuBackground.Height = 480;

            base.Initialize();

#if DEBUG
            ShowFPS();
#endif
        }

        /// <summary>
        /// LoadContent will be called once per game and is the place to load
        /// all of your content.
        /// </summary>
        protected override void LoadContent()
        {

            mSpriteBatch = new SpriteBatch(GraphicsDevice);
            foreach (GameComponent gc in mComponents)
            {
                EntitySprite s = gc as EntitySprite;
                if (s != null)
                {
                    s.SpriteBatch = mSpriteBatch;
                }
            }

            mSpriteFont = Content.Load<SpriteFont>(@"Fonts\menufont");

            mMenuBackground.LoadContent(Content);
            mBackground.LoadContent(Content);

            base.LoadContent();
        }

        /// <summary>
        /// UnloadContent will be called once per game and is the place to unload
        /// all content.
        /// </summary>
        protected override void UnloadContent()
        {

        }

        public override void Reinitialize()
        {
            inputHandler.Enable();
            this.Enabled = true;
            this.Visible = true;
        }

        protected override void Dispose(bool disposing)
        {
            //Console.WriteLine("Example menu screen disposing");
            if (disposing)
            {
                mSpriteBatch.Dispose();
            }
            base.Dispose(disposing);
        }

        /// <summary>
        /// Allows the game to run logic such as updating the world,
        /// checking for collisions, gathering input, and playing audio.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        public override void Update(GameTime gameTime)
        {
            base.Update(gameTime);
            while (inputHandler.HasEvent())
            {
                InputEvent e = inputHandler.GetNextEvent();

                switch ((SJInputEvent)e.EventCode)
                {
                    case SJInputEvent.ExitControlMenu:
                        Done();
                        break;
                }
            }
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        public override void Draw(GameTime gameTime)
        {
            base.Draw(gameTime);
            mSpriteBatch.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.FrontToBack, SaveStateMode.None);
            mBackground.Draw(mSpriteBatch);
            mMenuBackground.Draw(mSpriteBatch);
            mSpriteBatch.End();
        }
    }
}