soundeffect，XNA 4.0

Question

这是我第一次编程游戏，我想创造一个声音效果，每次我拍摄一枚导弹，而不是播放声音时，导弹在屏幕上，就在角色射击后。这是密码。请帮帮我，我整晚都试着这样做：

class Player
{
    Texture2D hero;
    Vector2 hero_location;
    KeyboardState hero_movement;
    int missileREA;
    public List<adw> missiles = new List<adw>();
    ContentManager takeContent;

    public void LoadContent(ContentManager Content)
    {
        hero = Content.Load<Texture2D>("F5S4");
        hero_location = Vector2.Zero;
        takeContent = Content;
    }
    public void ShootMissiles(GameTime gameTime)
    {
        adw missile = new adw();
        missile.LoadContent(takeContent);
        missile.missile_location = hero_location + new Vector2(hero.Width /2,-50);
        missiles.Add(missile);
        shot = missiles;
    }

    public void Update(GameTime gameTime)
    {
        hero_movement = Keyboard.GetState();

        if (hero_movement.IsKeyDown(Keys.W))
        {
            hero_location.Y -= 5;
        }
        if (hero_movement.IsKeyDown(Keys.D))
        {
            hero_location.X += 5;
        }
        if (hero_movement.IsKeyDown(Keys.S))
        {
            hero_location.Y += 3;
        }
        if (hero_movement.IsKeyDown(Keys.A))
        {
            hero_location.X -= 5;
        }
        if (hero_movement.IsKeyDown(Keys.NumPad1))
        {
            missileREA += gameTime.ElapsedGameTime.Milliseconds;
            if (missileREA > 200)
            {
                missileREA = 0;
                ShootMissiles(gameTime);
            }
        }
        foreach (adw missile in missiles)
        {
            missile.Update(gameTime);
        }
    }

    public void Draw(SpriteBatch spriteBatch)
    {
        spriteBatch.Draw(hero, hero_location, Color.White);
        foreach (adw missile in missiles)
        {
            missile.Draw(spriteBatch);
        }
    }

    public IEnumerable<adw> ShootMissile { get; set; }

    public List<adw> shot { get; set; }
}

这是我的Game1.cs，在这里，我所有的内容都被加载并绘制到我控制的屏幕上。

{ 
public class Game1 : Microsoft.Xna.Framework.Game
{
    GraphicsDeviceManager graphics;
    SpriteBatch spriteBatch;
    Player player;
    SoundEffect missile1;
    public Game1()
    {
        graphics = new GraphicsDeviceManager(this);
        Content.RootDirectory = "Content";
    }

    protected override void Initialize()
    {

        player = new Player();
        graphics.PreferredBackBufferWidth = 1024;
        graphics.PreferredBackBufferHeight = 680;
        graphics.ApplyChanges();

        base.Initialize();
    }

    protected override void LoadContent()
    {

        spriteBatch = new SpriteBatch(GraphicsDevice);

        missile1 = Content.Load<SoundEffect>("missile1");



        player.LoadContent(Content);
    }


    protected override void UnloadContent()
    {

    }

    protected override void Update(GameTime gameTime)
    {

        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
            this.Exit();



        foreach (adw missile in player.missiles)
        {
            missile1.Play();
        }

        player.Update(gameTime);

        base.Update(gameTime);
    }

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


        spriteBatch.Begin();
        player.Draw(spriteBatch);
        spriteBatch.End();

        base.Draw(gameTime);
    }
}
}

如果这里不是问这种事的地方，就告诉我。我会照你的建议去做。

Answer 1

protected override void Update(GameTime gameTime)
{

    ....

    foreach (adw missile in player.missiles)
    {
        missile1.Play();
    }

    ....

}

游戏中的每一个帧/滴答(我假设这是每秒60次)，你正在尝试播放你的声音，为你当前存储一个引用的每一个子弹。基本上，你是在每秒播放一次声音60+。

在Player类中加载声音，就像加载纹理一样。每次使用Play()创建一个新的项目时，都要调用ShootMissiles(gameTime)；