logocanvas.java

初学者游戏框架

import javax.microedition.lcdui.*;
import mmae.ui.*;

class LogoCanvas extends XCanvas{

	Progress progress;
	Image logo;
	
	public LogoCanvas()
	{
		go.addImage("/Move2008.png");
		logo = go.getImage("/Move2008.png");
		progress = new Progress((getWidth()-80)/2,getHeight()/2+40,80,6);
        start();      
	}
	
	//按CLR程序退出
	public void keyRelaesed(int keyCode)
	{
		switch(keyCode)
		{
			case CLR:
				go.exit();
				break;
		}
	}

    public void paint(Graphics g)    
	{
		g.setColor(255,255,255);
		g.fillRect(0,0,getWidth(),getHeight());
	
		g.drawImage(logo, (getWidth() - logo.getWidth())/2, (getHeight() - logo.getHeight())/2-5, g.TOP|g.LEFT);	
		
		progress.draw(g);
	}

	public void progressPaint(int Value)
	{
		progress.setValue(Value);
		repaint(progress.left, progress.top, progress.width, progress.height);	
		try
		{
			this.wait(100);
		}
		catch(Exception e)
		{}		
	}
	
	public void update()
	{
		synchronized(this)
		{
		
			/*****************************************
				在此加载图片资源、并显示进度条
				例：go.addImage("/Main.png");
				progressPaint(10);
			*****************************************/
				
			progressPaint(10);
			//在此加载部分图片
			go.addImage("/Bg1.png");
			go.addImage("/Bg2.png");
						
			progressPaint(30);
			//在此加载部分图片
			go.addImage("/Bg3.png");
			go.addImage("/Bracket.png");			
			go.addImage("/Explosion1.png");
			go.addImage("/Explosion2.png");
			go.addImage("/Explosion3.png");
			go.addImage("/Explosion4.png");
			go.addImage("/Explosion5.png");
			go.addImage("/Explosion6.png");															

			progressPaint(50);
			//在此加载部分图片
			go.addImage("/Gameover.png");
			go.addImage("/Gun0.png");			
			go.addImage("/Gun30.png");
			go.addImage("/Gun60.png");
			go.addImage("/Main.png");						
			
			progressPaint(70);
			//在此加载部分图片
			go.addImage("/Plane_1.png");
			go.addImage("/Plane_2.png");			
			go.addImage("/Plane_3.png");
			go.addImage("/Shot.png");
			go.addImage("/Bomb.png");			
			go.addImage("/Font.png");				
			go.addImage("/Pause.png");
												
			progressPaint(80);
													
			//进入主菜单界面
			go.changeCanvas(go.CVS_MAIN, true);			
		}
	}

}