splashscreen.java

一个刚刚找到的代码,很不错的,是个飞行游戏,上面是利用躲闪来玩的游戏

import javax.microedition.lcdui.*;
class SplashScreen    extends Canvas    implements Runnable
{
    private final escapeeMIDlet midlet;
    private Image splashImage;
    private volatile boolean dismissed = false;
    SplashScreen( escapeeMIDlet midlet)
    {
        this.midlet = midlet;
        setFullScreenMode(true);
        splashImage =  escapeeMIDlet.createImage("/splash.png");
        new Thread(this).start();
    }
    public void run()
    {
        synchronized(this)
        {
            try
            {
                wait(3000L);   // 3 seconds
            }
            catch (InterruptedException e)
            {
                // can't happen in MIDP: no Thread.interrupt method
            }
            dismiss();
        }
    }
    public void paint(Graphics g)
    {
        int CanvasWidth = getWidth();
        int CanvasHeight = getHeight();
        g.setColor(0x00FFFFFF);  // white
        g.fillRect(0, 0, CanvasWidth, CanvasHeight);
        g.setColor(0x00FF0000);  // red
        g.drawRect(1, 1, CanvasWidth-3, CanvasHeight-3);  // red border one pixel from edge
        if (splashImage != null)
        {
            g.drawImage(splashImage,
                        CanvasWidth/2,
                        CanvasHeight/2,
                        Graphics.VCENTER | Graphics.HCENTER);
            splashImage = null;
            
            
        }
        g.setFont(Font.getFont(Font.FACE_PROPORTIONAL,
                               Font.STYLE_BOLD,
                               Font.SIZE_LARGE));
        int centerX = CanvasWidth / 2;
        int centerY = CanvasHeight / 2+60;
        g.setColor(0x00FFFFFF);   // white
        drawText(g, centerX, centerY - 1);
        drawText(g, centerX, centerY + 1);
        drawText(g, centerX - 1, centerY);
        drawText(g, centerX + 1, centerY);
        g.setColor(0x00000000);   // black
        drawText(g, centerX, centerY);
        midlet.splashScreenPainted();
    }
    private void drawText(Graphics g, int centerX, int centerY)
    {
        int fontHeight = g.getFont().getHeight();
        int textHeight = 2 * fontHeight;
        int topY = centerY - textHeight / 2;

        g.drawString("逃亡者游戏",
                     centerX,
                     topY,
                     Graphics.HCENTER | Graphics.TOP);
        g.drawString("版本: " + midlet.getAppProperty("MIDlet-Version"),
                     centerX,
                     topY + fontHeight,
                     Graphics.HCENTER | Graphics.TOP);

    }
    public synchronized void keyPressed(int keyCode)
    {
        dismiss();
    }


    private void dismiss()
    {
        if (!dismissed)
        {
            dismissed = true;
            midlet.splashScreenDone();
        }
    }
}