myhelp.java

Java游戏沙丘城堡源代码/Java游戏沙丘城堡源代码

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import com.nokia.mid.ui.FullCanvas;

public class MyHelp extends FullCanvas 
{
	private Image back;
	//帮助画面
	private static Displayable instance;
	//创建并得到一个帮助画面的对象
	synchronized public static Displayable getInstance()
	{
	    if(instance == null)
			instance = new MyHelp();
		return instance;
	}
	//帮助画面的构造方法，加入一个按钮
	MyHelp()
	{
		super();
		this.setFullScreenMode(true);
		back = null;
		try
		{
			back = Image.createImage("/res/back.png");
		}
		catch(Exception e)
		{}
	}
	
   protected void keyPressed(int key) 
   {
       if (key == -7)
	   {    
			GameMenu.flow("返回");
	   }
   }

	//在帮助画面上写上说明文字
	protected void paint(Graphics g) 
	{
		g.setColor(0,0,0);
		g.fillRect(0,0,getWidth(),getHeight());
		g.setColor(255,255,0);
		
		g.setFont(Font.getFont(Font.FACE_PROPORTIONAL,Font.STYLE_PLAIN,Font.SIZE_SMALL));
		
		g.drawImage(back,getWidth(),getHeight(),Graphics.BOTTOM|Graphics.RIGHT);

	    	g.drawString("-游戏说明-",getWidth()/2-30,10,Graphics.TOP|Graphics.LEFT);
	    	
	    	g.drawString("移动：",5,35,Graphics.TOP|Graphics.LEFT);
	    	g.drawString("方向键 或 2,4,6,8",5,55,Graphics.TOP|Graphics.LEFT);
	    	
	    	g.drawString("跳跃：",5,80,Graphics.TOP|Graphics.LEFT);
	    	g.drawString("向上键 或 2",5,100,Graphics.TOP|Graphics.LEFT);
	    	
	    	g.drawString("确定：",5,125,Graphics.TOP|Graphics.LEFT);
	    	g.drawString("左功能键",5,145,Graphics.TOP|Graphics.LEFT);
	    	
	    	g.drawString("返回：",5,170,Graphics.TOP|Graphics.LEFT);
	    	g.drawString("右功能键",5,190,Graphics.TOP|Graphics.LEFT);
	
	    	
	}
}