menucanvas.java

手机版劲舞团,J2ME写的,里面人物动作比较多,游戏性比较高!

import javax.microedition.lcdui.*;

public class MenuCanvas extends Canvas implements CommandListener{
	
	String[] s={"开始","帮助","关于","退出"};
	myMIDlet a;
	Command ok=new Command("选择",Command.OK,1);
	int who;
	int height;
	int width;
	int x,y;
	Image img;
	Font f;
	
	public MenuCanvas(myMIDlet g){
		 setFullScreenMode(true);
		 try{
		 	img=Image.createImage("/image/backcolor.png");
		}catch (Exception e){
			System.out.println(e.getMessage());
		}
		 f=Font.getFont(Font.FACE_PROPORTIONAL,Font.STYLE_BOLD,Font.SIZE_LARGE);
		 who=0;
		 a=g;
		 height=getHeight();
		 width=getWidth();
		 y=height/8;
		 x=width/4;
		 addCommand(ok);
		 setCommandListener(this);
		}
		
	public void commandAction(Command c,Displayable d){
		if(c==ok){
		switch(who){
				case 0:a.startMenu();
								break;
				case 1:a.helpGame();
								break;
				case 2:a.aboutGame();
								break;
				case 3:a.quitGame();
								break;
							}
						}
					}
		public void paint(Graphics g){
			g.setColor(255,255,255);
			g.fillRect(0,0,width,height);
			g.drawImage(img,0,0,0);
			for(int i=0;i<s.length;i++){
				if(i==who){
					g.setFont(f);
					g.setColor(0,255,255);
					g.drawString(s[i],x,y*(i+1),0);
				}else {
					g.setFont(f);
					g.setColor(255,255,255);
					g.drawString(s[i],x,y*(i+1),0);
				}
			}
		}
		
		public void keyPressed(int code){
			if(getGameAction(code)==Canvas.UP&who-1>=0){
				who--;
				repaint();
			}else if(getGameAction(code)==Canvas.DOWN&who<s.length-1){
				who++;
				repaint();
			}else if(getGameAction(code)==Canvas.FIRE){
				switch(who){
				case 0:a.startMenu();
								break;
				case 1:a.helpGame();
								break;
				case 2:a.aboutGame();
								break;
				case 3:a.quitGame();
								break;
							}
		}
 }
}