public class Menu : DrawableGameComponent
{
ContentManager Content;
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Audio MenuMusic;
public Menu(Game game) : base(game)
{
spriteBatch = Game.Services.GetService(typeof(SpriteBatch)) as SpriteBatch;
graphics = Game.Services.GetService(typeof(GraphicsDeviceManager)) as GraphicsDeviceManager;
Content = game.Content;
Content.RootDirectory = @"Content\Menu\";
*MenuMusic = new Audio(game);* // Instantiate the new DrawableGameComponent
Game.Components.Add(this);
MenuMusic.PauseTune = false;
}
public override void Initialize()
{
Menustate = MenuState.LoadContent;
base.Initialize();
}
protected override void LoadContent()
{
base.LoadContent();
}
protected override void UnloadContent()
{
base.UnloadContent();
}
public override void Update(GameTime gameTime)
{
base.Update(gameTime);
}
public override void Draw(GameTime gameTime)
{
base.Draw(gameTime);
}
}
public class Audio : DrawableGameComponent
{
public bool PauseTune
{
get { return PauseTune; }
set { PauseTune = value; }
}
SoundEffect Tune = null;
SoundEffectInstance SFXInstance;
public Audio(Game game) : base(game)
{
*game.Components.Add(this)*;// This is the problem. It adds an entirely new Game object. :(
}
public override void Initialize()
{
PauseTune = true;
base.Initialize();
}
protected override void LoadContent()
{
switch (Game1.Gamestate)
{
case GameState.Menu:
string AudioPath = @"Audio\";
Tune = Game.Content.Load<SoundEffect>(AudioPath + "Tune");
break;
case GameState.InitialiseGame:
break;
case GameState.PlayGame:
break;
default:
break;
}
if (Tune != null) SFXInstance = Tune.CreateInstance();
base.LoadContent();
}
protected override void UnloadContent()
{
base.UnloadContent();
}
public override void Update(GameTime gameTime)
{
if (Tune != null)
{
if (PauseTune)
{
if (SFXInstance.State == SoundState.Playing)
SFXInstance.Pause();
}
else
{
if (SFXInstance.State != SoundState.Playing)
SFXInstance.Play();
}
}
base.Update(gameTime);
}
public override void Draw(GameTime gameTime)
{
base.Draw(gameTime);
}
}
当我使用菜单添加一个新的音频类实例时,问题就来了。Audio 构造函数尝试添加新的 GameCompent 但失败。它实际上所做的是创建一个全新的 Game 实例,然后继续实例化一个新的 Menu 以尝试添加一个新的 Audio 类实例......直到我最终得到一个 - 你相信吗?- 堆栈溢出错误。
我究竟做错了什么?/ 如何从另一个组件中添加一个组件?