gistfile1.cs

#region Using Statements
using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Storage;
using Microsoft.Xna.Framework.GamerServices;
using ShipFighterClasses; 
#endregion

namespace GameName9
{
    /// <summary>
    /// This is the main type for your game
    /// </summary>
    public class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        Player background;

        Random random;
        
        Player[] blueEnemies;
        Player playerShip; 

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

        protected override void Initialize()
        {
            random = new Random();
            blueEnemies = new Player[7];
            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);
            background = new Player(Content.Load<Texture2D>("spaceBackground"),
                Vector2.Zero,
                Vector2.Zero,
                false,
                1f);
            for (int i = 0; i < blueEnemies.Length; i++) { 
                blueEnemies[i] = new Player(Content.Load<Texture2D>("blueEnemy"),
                    new Vector2(random.Next(100,700), random.Next(100,300)),
                    new Vector2(random.Next(-100, 100), random.Next(-100, 100)),
                    true,
                    1f);
        }


            playerShip = new Player(Content.Load<Texture2D>("shipSprite"),
                new Vector2(100, 100),
                new Vector2(70, 70),
                true,
                1f);

        }

        /// <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)
        {
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();

            UpdateInput();
            playerShip.Update(gameTime,GraphicsDevice);
            for(int i=0;i<blueEnemies.Length;i++){
                blueEnemies[i].Update(gameTime);
                bool collided=blueEnemies[i].CollisionSprite(playerShip);
                if (collided)
                {
                    blueEnemies[i].Alive = false; 
                }
                base.Update(gameTime);
            }
        }

        private void UpdateInput()
        {
            bool keyPressed = false;
            KeyboardState keyState = Keyboard.GetState();
            if (keyState.IsKeyDown(Keys.Up))
            {
                playerShip.Up();
                keyPressed = true; 
            }
            // other keys 
            if (!keyPressed)
            {
                playerShip.Idle();
            }

        }
        /// <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);

            spriteBatch.Begin();
            background.Draw(spriteBatch);
            for (int i = 0; i < blueEnemies.Length; i++)
            {
                blueEnemies[i].Draw(spriteBatch);
            }
            playerShip.Draw(spriteBatch);
            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}