#region Using Statements
using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Storage;
using Microsoft.Xna.Framework.GamerServices;
using SuperPolarity;
#endregion

namespace SuperPolarity
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class SuperPolarity : Game
    {
        public static GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

        public SuperPolarity()
            : base()
        {
            SuperPolarity.graphics = new GraphicsDeviceManager(this);
            SuperPolarity.graphics.PreferMultiSampling = true;
            Content.RootDirectory = "Content";
            ActorFactory.SetGame(this);
        }

        /// <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>
        protected override void Initialize()
        {
            base.Initialize();

            InputController.RegisterEventForButton("changePolarity", Buttons.A);
            InputController.RegisterEventForKey("changePolarity", Keys.Z);

            InputController.RegisterEventForButton("shoot", Buttons.X);
            InputController.RegisterEventForKey("shoot", Keys.X);
        }

        /// <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);

            Vector2 playerPosition = new Vector2(GraphicsDevice.Viewport.TitleSafeArea.X, GraphicsDevice.Viewport.TitleSafeArea.Y + GraphicsDevice.Viewport.TitleSafeArea.Height / 2);

            ActorFactory.CreateShip(Ship.Polarity.Positive, new Vector2(200, 200));
            ActorFactory.CreateShip(Ship.Polarity.Negative, new Vector2(400, 200));
            ActorFactory.CreateMainShip(playerPosition);
        }

        /// <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)
        {
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();

            // TODO: Add your update logic here

            InputController.UpdateInput();
            ActorManager.Update(gameTime);

            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)
        {
            GraphicsDevice.Clear(Color.White);

            spriteBatch.Begin();

            ActorManager.Draw(spriteBatch);

            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}