mymenu.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 MyMenu extends FullCanvas
{
	static PlayMusic p;
	static boolean musicON = true;
	//主画面
	private static Displayable instance;
	
	private Image back,ok;
	public static void startMusic()
	{
		if(musicON)
		{
			if (p == null)
			{
				p = new PlayMusic();
				p.Music_start("/res/gamestart.mid");
			}
			else
			{
				p.Music_start1();
			}
			
		}
	}
	//创建并得到主画面的对象
	synchronized public static Displayable getInstance()
	{
		startMusic();
		
		if(instance == null)
			instance = new MyMenu();
		return instance;
	}
	private Image zhu, help1, newgame1, count1,about1,setSound1;
	int pressedButton=1;
	//主画面构造函数，创建播放器并加入2个按钮
	public MyMenu()
	{
		super();
		setFullScreenMode(true);
		back = null;
		ok = null;
		
		
		try 
		{
			back = Image.createImage("/res/back.png");
			ok = Image.createImage("/res/ok.png");
			zhu = Image.createImage("/res/menu.png");
			help1 = Image.createImage("/res/help1.png");
			count1 = Image.createImage("/res/count1.png");
			newgame1 = Image.createImage("/res/newgame1.png");
			about1 = Image.createImage("/res/about1.png");
			setSound1 = Image.createImage("/res/setSound.png");
		} 
		catch (Exception e) 
		{
		}
	}
	protected void paint(Graphics g) 
	{	
		g.setColor(0,0,0);
		g.fillRect(0,0,getWidth(),getHeight());
		//判断当时玩家所选项，并将选项用明显的按钮表现出来
		g.drawImage(zhu, 0, 0, Graphics.TOP | Graphics.LEFT);
		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.drawImage(ok,0,getHeight(),Graphics.BOTTOM|Graphics.LEFT);
		switch(pressedButton)
		{
			case 1:
				g.drawImage(newgame1, 54, 105, Graphics.TOP | Graphics.LEFT);
				break;
			case 2:
				g.drawImage(setSound1, 54, 105, Graphics.TOP | Graphics.LEFT);
				break;					
			case 3:
				g.drawImage(help1, 54, 105, Graphics.TOP | Graphics.LEFT);
				break;
			case 4:
				g.drawImage(count1, 54, 105, Graphics.TOP | Graphics.LEFT);
				break;
			case 5:
				g.drawImage(about1, 54, 105, Graphics.TOP | Graphics.LEFT);
				break;
		}
	}

	//按键选择事件，判断上下键来推断玩家现在所选择的按钮
	public void keyPressed(int key)
	{
		switch(getGameAction(key))
		{
			case Canvas.UP:
				pressedButton--;
				if(pressedButton<1)
					pressedButton = 5;
				break;
			case Canvas.DOWN:
				pressedButton++;
				if(pressedButton>5)
					pressedButton = 1;
				break;
		}
		
		 if (key == -6)
		   {    
		 	switch(pressedButton)
			{
				case 1:
					try 
					{
						p.Music_close();
						p = null;
					} 
					catch (Exception e) {}
					GameMenu.flow("开始");
					break;
				case 2:
					
					GameMenu.flow("设置");
					break;					
					
				case 3:
					
					GameMenu.flow("帮助");
					break;
				case 4:
					GameMenu.flow("得分");
					break;
				case 5:
					GameMenu.flow("关于");
					
					break;
			}
		   }
		 
		 if (key == -7)
		 {
		 	try 
			{
				p.Music_close();
				p = null;
			}
			catch (Exception e) {}
			GameMenu.flow("退出");
			System.gc();
		 }
		 
		repaint();
	}

}