Question

该程序具有20面模具并在移动7个点对象之前滚动模具，然后移动点，骰子在水平方向上滚动像素数。当顶点（dot [0]）的右边缘触及窗口时，我试图让点竞赛停止。一切正常，但是当顶点的左边缘到达窗口而不是右边缘时，比赛停止。我相信错误是在while条件下，我把/ *放在顶点的右边缘* /我也遇到了使用函数来确定数组中任何Dot的最大x坐标的问题。（如果最大值超过终点线，则比赛结束。）我放置的函数是：public static int leadingXCoordinate（Dot [] dotList）

public class FlyMe {

    private final static int GWINDOW_HEIGHT = 800;
    private final static int GWINDOW_WIDTH = 450;

    private static JFrame mainFrame;
    private static GCanvas dotCourse;

    public static void main(String[] args) throws InterruptedException {
    createWindows();

    Dot [] dots = new Dot [7];
    for (int i = 0; i < dots.length; i++){
    dots[i] = new Dot(10, 114*i, 70, FlyMe.getRandomColor(), dotCourse);
    }
    Dice die = new Dice(20);
    while (/* the right edge of the top dot */ dots[0].getX() < GWINDOW_WIDTH)
    {
        for (int i = 0; i < dots.length; i++)
        {
            int hstep = die.roll();
            dots[i].moveDot(dots[i].getX() + hstep, dots[i].getY());
            Thread.sleep(50);
        }
    }

    // Creates JFrame window and graphics canvas for animation
    public static Color getRandomColor() {
        Random r = new Random();
        return new Color(r.nextInt(255), r.nextInt(255), r.nextInt(255));
    }

    /**
     * Determine the x-coordinate of the right-most Dot.
     *
     * @param dotList
     *            an array of the balloons being scanned
     * @return the maximum x-coordinate of any baloon in the arrays
     */
    // public static int leadingXCoordinate( Dot[] dotList ) {
    //
    // }
    private static void createWindows() {
        mainFrame = new JFrame("Dot Races");
        mainFrame.setSize(GWINDOW_WIDTH, GWINDOW_HEIGHT);
        mainFrame.setLocation(0, 0);
        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        dotCourse = new GCanvas(); // drawing space
        dotCourse.setPreferredSize(new Dimension(GWINDOW_WIDTH, GWINDOW_HEIGHT));
        dotCourse.setLocation(0, 0);
        dotCourse.setBackground(Color.white);

        mainFrame.add(dotCourse);
        mainFrame.pack();
        mainFrame.setVisible(true);

    }// CreateWindows

}// FlyMe

点需要停在右边缘

0 个答案: