在一个面板中的Winforms中移动元素,没有线程

Question

我有一个任务是使用C#在Winforms中的一个面板周围移动一个元素(Button,Label ...).

我解决了这个问题,它有效:

 private void button1_Click(object sender, EventArgs e)
    {

        // System.Threading.Thread.Sleep(100 - auto.Geschwindigkeit);
        for (int i = 0; i < panel1.Width; i++)
        {
            label1.Location = new Point(i, label1.Location.Y);
            label2.Location = new Point(i, label2.Location.Y);
            System.Threading.Thread.Sleep(50);//speed
            Application.DoEvents();
        }


    }

但是有没有另外一种方法可以做到这一点,例如当我想要编程游戏并且我有10个标签(代表一辆驾驶汽车)时,我认为这将超载到使用Threads,因为CPU越来越高？!"System.Threading.Thread.Sleep(50);" 将是一个元素的速度,我想我需要一些更高效的东西？!

谢谢

Answer 1

不要Thread.Sleep用于计时.改为使用计时器:

private void btnStart_Click(object sender, EventArgs e)
{
    timer1.Interval = 100; // animation speed
    timer1.Enabled = true; // starting animation
}

private void timer1_Tick(object sender, EventArgs e)
{
    // do the replacements here
}

但说实话,我不会使用控件来表示动画对象.他们拥有您不需要的一百万个属性,事件和其他数据.相反,我会使用专用的Car对象和自定义绘图.

public class Car
{
    public Size Size { get; set; }
    public Color Color { get; set; }
    public Point Location { get; set; }
    public int Speed { get; set; }
    // and whatever you need, eg. direction, etc.
}

private List<Car> cars;

public Form1()
{
    InitializeComponent();
    cars = new List<Car>
    {
        new Car { Size = new Size(30, 15), Color = Color.Blue, Location = new Point(100, 100), Speed = 1 },
        new Car { Size = new Size(50, 20), Color = Color.Red, Location = new Point(200, 150), Speed = 3 },
    };
}

private void btnStart_Click(object sender, EventArgs e)
{
    timer1.Interval = 100; // animation speed
    timer1.Enabled = true; // starting animation
}

private void timer1_Tick(object sender, EventArgs e)
{
    foreach (Car car in cars)
        RecalculateLocation(car); // update Location by speed here
    panel1.Invalidate();
}

private void panel1_Paint(object sender, PaintEventArgs e)
{
    // now we are just drawing colored rectangles but you can draw car.Image or anything you want
    foreach (Car car in cars)
    {
        using (Brush brush = new SolidBrush(car.Color))
        {
            e.Graphics.FillRectangle(brush, new Rectangle(car.Location, car.Size));
        }
    }
}