// Game1.cs

using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Components;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Storage;

namespace Pong
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    partial class Game1 : Microsoft.Xna.Framework.Game
    {

        
        Texture2D t_paddle1, t_paddle2, t_ball;
        SpriteBatch spriteBatch;

        Paddle paddle1;
        Paddle paddle2;
        Ball ball;

        Random rand = new Random();
        KeyboardState currentstate;
        public Game1()
        {
            InitializeComponent();
            ResetGame();
        }

        void ResetGame()
        {
            paddle1 = new Paddle(10, 200);
            paddle2 = new Paddle(770, 200);
            ball = new Ball(385, 285);
        }

        protected override void  OnStarting()
        {
 	
           base.OnStarting();
            graphics.GraphicsDevice.DeviceReset += new EventHandler(GraphicsDevice_DeviceReset);
            LoadResources();
        }

        void GraphicsDevice_DeviceReset(object sender, EventArgs e)
        {
            LoadResources();
        }

        void LoadResources()
    {
        t_paddle1 = Texture.FromFile(graphics.GraphicsDevice, "paddle.png");
        t_paddle2 = Texture.FromFile(graphics.GraphicsDevice, "paddle.png");
        t_ball = Texture.FromFile(graphics.GraphicsDevice, "ball.png");
        spriteBatch = new SpriteBatch(graphics.GraphicsDevice);
    }
        protected override void Update()
        {
            // The time since Update was called last
            float elapsed = (float)ElapsedTime.TotalSeconds;

            // TODO: Add your game logic here

            // Let the GameComponents update
            UpdateComponents();
        }

        protected override void Draw()
        {
            // Make sure we have a valid device
            if (!graphics.EnsureDevice())
                return;

            graphics.GraphicsDevice.Clear(Color.CornflowerBlue);
            graphics.GraphicsDevice.BeginScene();

            // TODO: Add your drawing code here
            spriteBatch.Begin(SpriteBlendMode.AlphaBlend);
            spriteBatch.Draw(t_paddle1, new Rectangle(t_paddle1.pos.X, t_paddle1.pos.Y, t_paddle1.Width, t_paddle1.Height), Color.White);
            spriteBatch.Draw(t_paddle2, new Rectangle(t_paddle2.pos.X, t_paddle2.pos.Y, t_paddle2.Width, t_paddle2.Height), Color.White);
            spriteBatch.Draw(t_ball, new Rectangle(t_ball.pos.X, t_ball.pos.Y, t_ball.Width, t_ball.Height),Color.White);
            spriteBatch.End();
            // Let the GameComponents draw
            DrawComponents();

            graphics.GraphicsDevice.EndScene();
            graphics.GraphicsDevice.Present();
        }
    }
}

//Ball.cs

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework;

namespace Pong
{
    class Ball
    {
        public Point pos;
        public int h_speed, v_speed;

        public Ball(int x, int y)
        {
            pos = new Point(x, y);

            Random rand = new Random();
            h_speed = rand.Next(3 ,7);
            if (rand.Next(0, 2) == 0) h_speed *= -1;

            rand = new Random();
            v_speed = rand.Next(3, 7);
            if (rand.Next(0,2) == 0) v_speed *=-1;
        }
    }
}

//Paddle.cs

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Xna.Framework;

namespace Pong
{
    class Paddle
    {
        public Point pos;
        public int speed;

        public Paddle(int x, int y)
        {
            pos = new Point(x, y);
            speed = 3;
        }
    }
}


//Errors:




/*
Error	1	Cannot implicitly convert type 'Microsoft.Xna.Framework.Graphics.Texture' to 'Microsoft.Xna.Framework.Graphics.Texture2D'. An explicit conversion exists (are you missing a cast?)	56	21
Error	2	Cannot implicitly convert type 'Microsoft.Xna.Framework.Graphics.Texture' to 'Microsoft.Xna.Framework.Graphics.Texture2D'. An explicit conversion exists (are you missing a cast?)	57	21
Error	3	Cannot implicitly convert type 'Microsoft.Xna.Framework.Graphics.Texture' to 'Microsoft.Xna.Framework.Graphics.Texture2D'. An explicit conversion exists (are you missing a cast?)	58	18
Error	4	'Microsoft.Xna.Framework.Graphics.Texture2D' does not contain a definition for 'pos'	83	65
Error	5	'Microsoft.Xna.Framework.Graphics.Texture2D' does not contain a definition for 'pos'	83	82
Error	6	'Microsoft.Xna.Framework.Graphics.Texture2D' does not contain a definition for 'pos'	84	65
Error	7	'Microsoft.Xna.Framework.Graphics.Texture2D' does not contain a definition for 'pos'	84	82
Error	8	'Microsoft.Xna.Framework.Graphics.Texture2D' does not contain a definition for 'pos'	85	59
Error	9	'Microsoft.Xna.Framework.Graphics.Texture2D' does not contain a definition for 'pos'	85	73
*/