Question

我正在构建一个2D平台游戏，我希望每个级别都有不同的颜色背景。我创造了一个物体，当碰撞时，它会通过更改player.Position将角色置于下一级别，就像这样...

protected override void Update(GameTime gameTime){

    if (player.Bounds.Intersects(teleportObj.Bounds))
    {
        GraphicsDevice.Clear(Color.SlateGray); // fails to change bg color
        player.Position = new Vector2(172, 0); // successfully changes character position
        MediaPlayer.Play(dungeonSong);  // successfully plays new song
        MediaPlayer.IsRepeating = true;  // successfully repeats new song
    }
}

我已经在Game1的Draw()函数中设置了第一级的背景，如下所示：

GraphicsDevice.Clear(Color.CornflowerBlue);

但是当我的播放器与teleportObj发生碰撞时，背景颜色不会改变。

Answer 1

{p> GraphicsDevice.Clear(Color.SlateGray);用于Draw函数。尝试创建新的Color变量，并在Update方法中更改该变量，并在使用GraphicsDevice.Clear(name of the variable);时，在Draw函数中使用它。

代码就是这样：

Color backgroundColor = Color.CornflowerBlue;
protected override void Update(GameTime gameTime)
{    
    if (player.Bounds.Intersects(teleportObj.Bounds))
    {
        backgroundColor = Color.SlateGray;
        player.Position = new Vector2(172, 0); 
        MediaPlayer.Play(dungeonSong);
        MediaPlayer.IsRepeating = true;
    }
    else backgroundColor = Color.CornflowerBlue; 
}

protected override void Draw(SpriteBatch spriteBatch)
{    
    GraphicsDevice.Clear(backgroundColor);
    *draw other stuff*
}

Monogame - 更改背景颜色错误

1 个答案: