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 Games_Game_1
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        Skybox sky;
        PlayerIndex player;



        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



            base.Initialize();
        }

        /// <summary>
        /// LoadContent will be called once per game and is the place to load
        /// all of your content.
        /// </summary>
        ///

            Model myModel;

            float aspectRatio;


        protected override void LoadContent()
        {

            // Create a new SpriteBatch, which can be used to draw textures.

            spriteBatch = new SpriteBatch(GraphicsDevice);

            myModel = Content.Load<Model>("Model\\BlenderDone");
            aspectRatio = graphics.GraphicsDevice.Viewport.AspectRatio;
            Model skybox = Content.Load<Model>(@"skybox");
            sky = new Skybox(graphics.GraphicsDevice, skybox);
            player.Draw();






            // 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>
        ///

        Vector3 modelVelocity = Vector3.Zero;

        protected override void Update(GameTime gameTime)
        {
            // Allows the game to exit
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                this.Exit();

            UpdateInput();

            modelPosition += modelVelocity;

            modelVelocity *= 0.95f;
            // TODO: Add your update logic here




            base.Update(gameTime);
        }

        protected void UpdateInput()
        {

            GamePadState currentState = GamePad.GetState(PlayerIndex.One);
            KeyboardState currentKeyState = Keyboard.GetState();


            if (currentKeyState.IsKeyDown(Keys.Left))
                modelRotation += 0.10f;
            else if (currentKeyState.IsKeyDown(Keys.Right))
                modelRotation -= 0.10f;

            else



                modelRotation -= currentState.ThumbSticks.Left.X * 0.10f;


                Vector3 modelVelocityAdd = Vector3.Zero;


                modelVelocityAdd.X = -(float)Math.Sin(modelRotation);
                modelVelocityAdd.Z = -(float)Math.Cos(modelRotation);

                if (currentKeyState.IsKeyDown(Keys.W))
                    modelVelocityAdd *= 1;
                else if (currentKeyState.IsKeyDown(Keys.S))
                    modelVelocityAdd *= -1;
                else if (currentKeyState.IsKeyDown(Keys.D))
                    modelVelocityAdd.X = 1;
                else if (currentKeyState.IsKeyDown(Keys.A))
                    modelVelocityAdd.X = -1;
                else
                modelVelocityAdd *= currentState.Triggers.Right;


                modelVelocity += modelVelocityAdd;

                GamePad.SetVibration(PlayerIndex.One,
                    currentState.Triggers.Right,
                    currentState.Triggers.Right);


                // In case you get lost, press A to warp back to the center.
                if (currentState.Buttons.A == ButtonState.Pressed || currentKeyState.IsKeyDown(Keys.Enter))
                {
                    modelPosition = Vector3.Zero;
                    modelVelocity = Vector3.Zero;
                    modelRotation = 0.0f;

            }
        }

        /// <summary>
        /// This is called when the game should draw itself.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        ///

        Vector3 modelPosition = Vector3.Zero;
        float modelRotation = 0.0f;

        Vector3 cameraPosition = new Vector3(0.0f, 50.0f, 5000.0f);


        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);

            // TODO: Add your drawing code here




            Matrix[] transforms = new Matrix[myModel.Bones.Count];
            myModel.CopyAbsoluteBoneTransformsTo(transforms);


            foreach (ModelMesh mesh in myModel.Meshes)
            {
                foreach (BasicEffect effect in mesh.Effects)
                {
                    effect.EnableDefaultLighting();
                    effect.World = transforms[mesh.ParentBone.Index] *
                        Matrix.CreateRotationY(modelRotation)
                        * Matrix.CreateTranslation(modelPosition);
                    effect.View = Matrix.CreateLookAt(cameraPosition,
                        Vector3.Zero, Vector3.Up);
                    effect.Projection = Matrix.CreatePerspectiveFieldOfView(
                        MathHelper.ToRadians(45.0f), aspectRatio,
                        1.0f, 10000.0f);
                }
                mesh.Draw();
            }




            base.Draw(gameTime);
        }

        public static void DrawModel(Model model, Matrix modelTransform,
         Matrix[] absoluteBoneTransforms)
        {
            //Draw the model, a model can have multiple meshes, so loop
            foreach (ModelMesh mesh in model.Meshes)
            {
                //This is where the mesh orientation is set
                foreach (BasicEffect effect in mesh.Effects)
                {
                    effect.World =
                        absoluteBoneTransforms[mesh.ParentBone.Index] *
                        modelTransform;
                }
                //Draw the mesh, will use the effects set above.
                mesh.Draw();
            }
        }

    }
}