splash.java

来自「基于J2ME的手机游戏软件。可以控制游戏人物在地图上上下左右行走；可以在地图上放」· Java 代码 · 共 95 行

import javax.microedition.lcdui.*;

public class Splash extends Canvas
    implements Runnable
{

    private boolean running;
    private Image word;
    private Image word1;
    private Image background;
    private Image image;
    private int width;
    private int height;
    private int baseLine;
    private boolean word1isShow;
    private long lastWord1Show;
    protected BombMan midlet;

    public Splash(BombMan midlet)
    {
        running = true;
        setFullScreenMode(true);
        this.midlet = midlet;
        width = getWidth();
        height = getHeight();
        baseLine = 0;
        word = ImageSet.loadClippedImage("/splash_word.png", 0, 0, 120, 120);
        word1 = ImageSet.loadClippedImage("/splash_word1.png", 0, 0, 120, 120);
        background = ImageSet.loadClippedImage("/splash_background.png", 0, 0, 120, 120);
        image = Image.createImage(120, 120);
        word1isShow = false;
        lastWord1Show = 0L;
        Thread thread = new Thread(this);
        thread.start();
    }

    protected void keyPressed(int keyCode)
    {
        running = false;
    //  System.out.println("key pressed!");
    }

    public void paint(Graphics gra)
    {
        gra.setColor(0xffffff);
        gra.fillRect(0, 0, getWidth(), getHeight());
        gra.drawImage(image, width / 2, height / 2, 3);
        gra.drawImage(word, width / 2, height / 2, 3);
        if(word1isShow)
        {
            gra.drawImage(word1, width / 2, height / 2, 3);
        }
    }

    protected void cycle()
    {
        image.getGraphics().drawImage(background, baseLine, 0, 20);
        image.getGraphics().drawImage(background, -(120 - baseLine), 0, 20);
        baseLine = (baseLine + 4) % 120;
        if(System.currentTimeMillis() - lastWord1Show > 600L)
        {
            word1isShow = !word1isShow;
            lastWord1Show = System.currentTimeMillis();
        }
    }

    public void run()
    {
    //  System.out.println("splash start...");
        long deltaTime = 0L;
        long bufTime = 0L;
        do
        {
            if(!running)
            {
                break;
            }
            bufTime = System.currentTimeMillis();
            cycle();
            repaint();
            deltaTime = System.currentTimeMillis() - bufTime;
            if(deltaTime < 100L)
            {
                try
                {
                    Thread.sleep(100L - deltaTime);
                }
                catch(InterruptedException e) { }
            }
        } while(true);
    //  System.out.println("splash end...");
        midlet.activateGameMenu();
    }
}