source: 2014/30/MikkoI/WindowsGame1/WindowsGame1/WindowsGame1/Game1.cs @ 5581

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 WindowsGame1
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Pikseli : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        //ContentManager contentManager;
        SpriteBatch spriteBatch;
        Vector2 screenSize = new Vector2(1920, 1080);
        MouseState currentMouseState;
        MouseState previousMouseState;
        Vector2 mapSize = new Vector2(40, 40);
        Random random;
        Camera camera;
        MapRenderer mapRenderer;

        public Dictionary<string, Texture2D> textures = new Dictionary<string, Texture2D>();

        List<Map> allMaps = new List<Map>();
        int currentMapIndex = 0;

        BasicEffect effect;

        public static Pikseli Instance;
        public GameTime gameTime;

        public Pikseli()
        {
            Instance = this;
            graphics = new GraphicsDeviceManager(this);
            graphics.PreferredBackBufferWidth = (int)screenSize.X;
            graphics.PreferredBackBufferHeight = (int)screenSize.Y;
            //graphics.IsFullScreen = true;
            //contentManager = new ContentManager();
            Content.RootDirectory = "Content";
            currentMouseState = new MouseState();
        }

        /// <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
            random = new Random();
            camera = new Camera();
            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);

            allMaps.Add(new Map(new Texture2D(GraphicsDevice, 1, 1), 10, 10));

            mapRenderer = new MapRenderer(spriteBatch, allMaps[currentMapIndex], screenSize);

            /*LOAD ALL TEXTURES*/
            textures.Add("testitile", Content.Load<Texture2D>("Graphics/Test/taso5.1"));
            textures.Add("testipuu", Content.Load<Texture2D>("Graphics/Test/kuusi"));


            




            effect = new BasicEffect(GraphicsDevice);

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

        /// <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)
        {
            this.gameTime = gameTime;

            // Allows the game to exit
            if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Escape))
                this.Exit();

            // TODO: Add your update logic here

            currentMouseState = Mouse.GetState();

            int erotus = currentMouseState.ScrollWheelValue - previousMouseState.ScrollWheelValue;
            if (erotus > 0)
            {
                camera.zoomFactor *= 1.2f;
            }
            else if (erotus < 0)
            {
                camera.zoomFactor /= 1.2f;
            }
            previousMouseState = currentMouseState;

            ListenKeyBoard();

            base.Update(gameTime);
        }

        void ListenKeyBoard()
        {
            if (Keyboard.GetState().IsKeyDown(Keys.Down))
            {
                camera.pitch += 0.6f;
            }
            else if (Keyboard.GetState().IsKeyDown(Keys.Up))
            {
                camera.pitch -= 0.6f;
            }

            if (Keyboard.GetState().IsKeyDown(Keys.Right))
            {
                camera.yaw -= 0.6f;
            }
            else if (Keyboard.GetState().IsKeyDown(Keys.Left))
            {
                camera.yaw += 0.6f;
            }

            float scrollSpeed = 9;

            if (Keyboard.GetState().IsKeyDown(Keys.W))
            {
                //lisätään molempia koska tämä muokkaa translaatiota
                camera.offset.X += scrollSpeed / camera.zoomFactor;
                camera.offset.Y += scrollSpeed / camera.zoomFactor;
            }
            else if (Keyboard.GetState().IsKeyDown(Keys.S))
            {
                camera.offset.Y -= scrollSpeed / camera.zoomFactor;
                camera.offset.X -= scrollSpeed / camera.zoomFactor;
            }

            if (Keyboard.GetState().IsKeyDown(Keys.A))
            {
                camera.offset.X += scrollSpeed / camera.zoomFactor;
                camera.offset.Y -= scrollSpeed / camera.zoomFactor;
            }
            else if (Keyboard.GetState().IsKeyDown(Keys.D))
            {
                camera.offset.X -= scrollSpeed / camera.zoomFactor;
                camera.offset.Y += scrollSpeed / camera.zoomFactor;
            }


        }

        /// <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.Black);



            // TODO: Add your drawing code here

            mapRenderer.RenderMap(camera);

            base.Draw(gameTime);
        }
    }
}