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 WindowsGame2
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        Texture2D dumyTexture;
        Texture2D starTexture;
        Point poz;
        float angle = 0.0f, speed;
        SpriteFont pisava;
        KeyboardState oldKstate;
        float fps, trenutniFps=0, elapsedTime=0;

        Point zadniMisak;
        Rectangle premikajoci = new Rectangle(0, 0, 50, 50);

        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
            this.IsMouseVisible = true;
            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
            poz = new Point(100, 100);
            speed = 0.01f;
            dumyTexture = new Texture2D(GraphicsDevice, 1, 1);
            dumyTexture.SetData(new Color[] { Color.Wheat });
            pisava = Content.Load<SpriteFont>("pisava");

            starTexture = Content.Load<Texture2D>("zvezdica");
        }

        /// <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 kstate = Keyboard.GetState();

            if (kstate.IsKeyDown(Keys.Up))
            {
                poz.Y -= 1;
            }
            if (kstate.IsKeyDown(Keys.Down))
            {
                poz.Y += 1;
            }
            if (kstate.IsKeyDown(Keys.Left))
            {
                poz.X -= 1;
            }
            if ( kstate.IsKeyDown(Keys.Right))
            {
                poz.X += 1;
            }

            //if (oldKstate.IsKeyUp(Keys.Up) && kstate.IsKeyDown(Keys.Up))
            //{
            //    poz.Y -= 10;
            //}
            //if (oldKstate.IsKeyUp(Keys.Down) && kstate.IsKeyDown(Keys.Down))
            //{
            //    poz.Y += 10;
            //}
            //if (oldKstate.IsKeyUp(Keys.Left) && kstate.IsKeyDown(Keys.Left))
            //{
            //    poz.X -= 10;
            //}
            //if (oldKstate.IsKeyUp(Keys.Right) && kstate.IsKeyDown(Keys.Right))
            //{
            //    poz.X += 10;
            //}
            oldKstate = kstate;

            MouseState misak = Mouse.GetState();

            //if (misak.LeftButton == ButtonState.Pressed)
            //{
            //    poz.X = misak.X;
            //    poz.Y = misak.Y;
            //}

            zadniMisak.X = misak.X;
            zadniMisak.Y = misak.Y;


            speed += 0.001f % 1;
            angle = (angle + speed) % 360;


            elapsedTime += gameTime.ElapsedGameTime.Milliseconds;
            if (elapsedTime >= 1000)
            {
                fps = trenutniFps;
                trenutniFps = 0;
                elapsedTime = 0;
            }


            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.CornflowerBlue);

            // TODO: Add your drawing code here
            spriteBatch.Begin();
            spriteBatch.Draw(dumyTexture, new Rectangle(poz.X, poz.Y, 100, 100), Color.Tomato);
            //spriteBatch.Draw(starTexture, new Rectangle(30, 30, starTexture.Width * 10, starTexture.Height / 100), Color.White);
            //spriteBatch.Draw(starTexture, new Vector2(10, 10), Color.Magenta);

            Vector2 location = new Vector2(300, 300);
            Rectangle rect = new Rectangle(0, 0, starTexture.Width, starTexture.Height);
            Vector2 origi = new Vector2(100, 50);
            /*
            spriteBatch.Draw(starTexture, location, rect, Color.White, angle, origi, 1.0f, SpriteEffects.None, 1);
            spriteBatch.DrawString(pisava, "Fps: " + fps.ToString(), new Vector2(10, 10), Color.White);
            */
            Rectangle rect2 = new Rectangle(200, 200, 300, 300);
            if (rect2.Intersects(new Rectangle(poz.X, poz.Y, 100, 100)))
            {
                spriteBatch.Draw(dumyTexture, rect2, Color.PaleTurquoise);
            }
            else
            {
                spriteBatch.Draw(dumyTexture, rect2, Color.Black);
            }


            spriteBatch.End();
            trenutniFps++;
            base.Draw(gameTime);
        }
    }
}