using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace TEST_0000
{

    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

        Texture2D Player;
        Vector2 PlayerPosition;

        Texture2D Portal;
        Vector2 PortalPosition;

        Rectangle PlayerBoundingBox;
        Rectangle PortalBoundingBox;

        bool Collision;
        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
        }


        protected override void Initialize()
        {
            PlayerPosition = new Vector2(100,100);
            PortalPosition = new Vector2(600,100);
            Collision = false;

            base.Initialize();
        }

        /// <summary>
        /// LoadContent will be called once per game and is the place to load
        /// all of your content.
        /// </summary>
        protected override void LoadContent()
        {
            // Create a new SpriteBatch, which can be used to draw textures.
            spriteBatch = new SpriteBatch(GraphicsDevice);

            Portal = Content.Load<Texture2D>("player");
            Player = Content.Load<Texture2D>("player");

            PlayerBoundingBox = new Rectangle ((int)PlayerPosition.X, (int)PlayerPosition.Y , Player.Width , Player.Height );
            PortalBoundingBox = new Rectangle ((int)PortalPosition.X , (int)PortalPosition.Y , Portal.Width , Portal.Height );
        }

        /// <summary>
        /// UnloadContent will be called once per game and is the place to unload
        /// all content.
        /// </summary>
        protected override void UnloadContent()
        {
            // TODO: Unload any non ContentManager content here
        }

        /// <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>
        protected override void Update(GameTime gameTime)
        {
            KeyboardState input = Keyboard.GetState();
            if ( Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();

            if ( input.IsKeyDown(Keys.Right))
                PlayerPosition.X += 2;
            if ( input.IsKeyDown(Keys.Left))
                PlayerPosition.X -= 2;
            if ( input.IsKeyDown(Keys.Up))
                PlayerPosition.Y -= 2;
            if ( input.IsKeyDown(Keys.Down))
                PlayerPosition.Y += 2;

            if ( PlayerBoundingBox.Intersects(PortalBoundingBox) )
            {
                Collision = true;
            }
            else{ Collision = false; }


            base.Update(gameTime);
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        protected override void Draw(GameTime gameTime)
        {
            if ( Collision )
            {
                GraphicsDevice.Clear(Color.Orange);
            }
            else { GraphicsDevice.Clear(Color.CornflowerBlue); }


            spriteBatch.Begin();

            PlayerBoundingBox = new Rectangle((int)PlayerPosition.X , (int)PlayerPosition.Y , Player.Width , Player.Height );
            spriteBatch.Draw(Player,PlayerPosition,Color.White);

            spriteBatch.Draw(Portal,PortalBoundingBox,Color.Blue);

            spriteBatch.End();


            base.Draw(gameTime);
        }
    }
}