Question

我正在尝试在对象保持动画的同时在鼠标点击上移动对象。这个网站上有一些类似的帖子，我的代码基于这个答案：

An efficient algorithm to move ostrichs along a line at a constant speed

但是我想使用一个线程来保持对象的动画效果。我该怎么做？这是我的代码：

public void movePlayer(Graphics g, int finalX, int finalY)
{
    int length = finalX - xpos;
    int height = finalY - ypos;

    int oldXpos = xpos;
    int oldYpos = ypos;

    double speed = 20;
    double distanceX = (length)/speed;
    double distanceY = (height)/speed;

    double distance = (Math.hypot(length,height));
    double distanceTraveled = 0;

    //This currently doesn't work:
    move = new Thread(this);
    {
        while (distanceTraveled<distance)
        {
            //move the object by increments
            xpos += distanceX;
            ypos += distanceY;
            distanceTraveled = Math.hypot(xpos-oldXpos, ypos - oldYpos);
            drawPlayer(img, g);
            for(int x = 0; x < 100000; x ++);

        }
    }
}

Answer 1

如果这是Swing，为什么不简单地使用MouseListener来帮助你拖动对象？如果要与鼠标分开动画，除非要冻结事件线程，否则不要使用while(true)循环。请改用Swing Timer。如果这不是Swing，请告诉我们更多细节（拍摄，无论如何都要这样做）！

使用鼠标在两点之间移动

1 个答案: