Question

我的37 * 37分辨率精灵的动画正在膨胀，因为当我按下左右箭头键时，两个动画出现在彼此的顶部。这是我的代码：

    keys = Keyboard.GetState();
        if (keys.IsKeyDown(Keys.Right))
        {
            position = new Vector2(position.X + 1.4f, position.Y);
            isRight = true;
            isLeft = false;
            if (keys.IsKeyDown(Keys.Left))
            {
                isLeft = true;
                isRight = false;
            }
        }
        if (keys.IsKeyDown(Keys.Left))
        {
            position = new Vector2(position.X - 1.4f, position.Y);
            isLeft = true;
            isRight = false;
            if (keys.IsKeyDown(Keys.Right))
            {
                isRight = true;
                isLeft = false;
            }
        }

        base.Update(gameTime);
    }



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

        spriteBatch.Begin();
        int frame = (int)((gameTime.TotalGameTime.TotalSeconds * 12) % 4);

        if (keys.IsKeyDown(Keys.Right))
            spriteBatch.Draw(texture, position, new Rectangle(frame * 37, 0, 37, 37), Color.White, 0, Vector2.Zero, 1.0f, SpriteEffects.None, 1.0f);
        if (keys.IsKeyDown(Keys.Left))
            spriteBatch.Draw(texture, position, new Rectangle(frame * 37, 0, 37, 37), Color.White, 0, Vector2.Zero, 1.0f, SpriteEffects.FlipHorizontally, 1.0f);

        if (keys.IsKeyUp(Keys.Left) && keys.IsKeyUp(Keys.Right))
        {
            if (isRight)
                spriteBatch.Draw(texture, position, new Rectangle(0, 0, 37, 37), Color.White, 0, Vector2.Zero, 1.0f, SpriteEffects.None, 1.0f);
            if (isLeft)
                spriteBatch.Draw(texture, position, new Rectangle(0, 0, 37, 37), Color.White, 0, Vector2.Zero, 1.0f, SpriteEffects.FlipHorizontally, 1.0f);
        }
        spriteBatch.End();

我做错了什么？

Answer 1

您有两个动画相互重叠，因为您的SpriteBatch.Draw方法中有两个单独的Draw个调用。当您同时按下左右键时，IsKeyDown ifs都为真，并且两个绘图都被执行。

此外，这篇文章更适合https://gamedev.stackexchange.com/。

精灵动画错误

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