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 Ninja_Wars
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        Rectangle spriteRect = new Rectangle();

        Random random = new Random();

        Texture2D mainCharacter;
        Texture2D backGround;
        Texture2D fireBall;
        Texture2D missile;

        Vector2 missilePosition = new Vector2(0,0);
        Vector2 firePosition = new Vector2(0,0);
        Vector2 bgPosition = new Vector2(0,0);
        Vector2 spritePosition = new Vector2(50,200);

        Vector2 rectPosition = new Vector2(50,200);
        Vector2 missileRect = new Vector2(0,0);

        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

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

        /// <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()
        {
            // TODO: Add your initialization logic here
            Rectangle screenRect = graphics.GraphicsDevice.Viewport.Bounds;
            if (spritePosition.X == screenRect.X)
            {
                spritePosition.X -= 1;
            }

            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);

            // TODO: use this.Content to load your game content here

            mainCharacter = this.Content.Load<Texture2D>("Images//Ninja");
            backGround = this.Content.Load<Texture2D>("Images//background");
            fireBall = this.Content.Load<Texture2D>("Images//fireball");
            missile = this.Content.Load<Texture2D>("Images//Missles");

            missilePosition = spriteRect.Left;
        }

        /// <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)
        {
            // Allows the game to exit
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                this.Exit();

            // TODO: Add your update logic here

            KeyboardState keyboardstate = Keyboard.GetState();

            if (keyboardstate.IsKeyDown(Keys.Left))
            {
                spritePosition.X -= 3;
            }

            if (keyboardstate.IsKeyDown(Keys.Right))
            {
                spritePosition.X += 3;
            }

            if (keyboardstate.IsKeyDown(Keys.Left) && keyboardstate.IsKeyDown(Keys.LeftShift))
            {
                spritePosition.X -= 5;
            }

            if (keyboardstate.IsKeyDown(Keys.Right) && keyboardstate.IsKeyDown(Keys.LeftShift))
            {
                spritePosition.X += 5;
            }

            if (keyboardstate.IsKeyDown(Keys.Space))
            {
                missilePosition.Y -= 1;
            }

            base.Update(gameTime);

            if (keyboardstate.IsKeyDown(Keys.Space))
            {
                    missilePosition.Y -= 1;
            }

            rectPosition.X = spritePosition.X;
            rectPosition.Y = spritePosition.Y;

            missileRect.X = missilePosition.X;
            missileRect.Y = missilePosition.Y;
        }

        /// <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.CornflowerBlue);

            // TODO: Add your drawing code here
            spriteBatch.Begin();
            spriteBatch.Draw(backGround, bgPosition, Color.White);
            spriteBatch.End();

            spriteBatch.Begin();
            spriteBatch.Draw(mainCharacter, spritePosition, Color.White);
            spriteBatch.Draw(mainCharacter, spriteRect, Color.White);
            spriteBatch.End();

            spriteBatch.Begin();
            spriteBatch.Draw(missile, missilePosition, Color.White);
            spriteBatch.Draw(missile, missileRect, Color.White);
            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}