Question

我有这个财富之轮application。轮子是整个图像。当车轮停止旋转时，我能够旋转并检测角度。这是代码：

private void SpinBtn_Click(object sender, RoutedEventArgs e)
        {

            var ease = new PowerEase { EasingMode = EasingMode.EaseOut };

            Random rng = new Random(Guid.NewGuid().GetHashCode());
            //DoubleAnimation(FromValue. ToValue, Duration)
            double degree = rng.Next(360, 720);
            DoubleAnimation myanimation = new DoubleAnimation
                    (0, degree, new Duration(TimeSpan.FromSeconds(3)));

            double resultAngle = degree - 360;
            double num = resultAngle % 45;
            double quadrant = num + 1;


            data.Content = resultAngle;

            //Adding Power ease to the animation
            myanimation.EasingFunction = ease;

            RotateTransform rotate = new RotateTransform();

            img.RenderTransform = rotate;
            img.RenderTransformOrigin = new Point(0.5, 0.5);
            rotate.BeginAnimation(RotateTransform.AngleProperty, myanimation);


        }

但是，如何检查用户是否将文字拖到文本框中，并指向指针指向的图像？我的讲师要求我将单词（我从数据库中获取）存储到数组中，将对象编号存储在数组中，但我不知道该怎么做。例如，对象编号1将落在角度范围0-45，对象编号2落入46-90等等。我如何进行检查？

Answer 1

我不太确定我是否完全明白这里的问题是什么！但您只需使用Dictionary来保存每个45度切片的字符串值，并将其与用户拖动一词进行检查。

Dictionary<int, string> dict = new Dictionary<int, string>();
dict.Add(1, "Eraser");
dict.Add(2, "Glue");
dict.Add(3, "Pen");
dict.Add(4, "Scissors");
dict.Add(5, "Stapler");
dict.Add(6, "Sharpener");
dict.Add(7, "Ruler");
dict.Add(8, "Pencil");

并将您的代码更改为：

double degree = rng.Next(360, 720);
double resultAngle = degree - 360;
int num = (int)Math.Ceiling(resultAngle / 45);

然后，指针当前指向的元素的名称将是：

string currentElem = dict[num];

如何在财富之轮中检查正确的答案？

1 个答案: