📄 用midp实现贪吃蛇游戏(3).htm
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<TD style="PADDING-LEFT: 10px; PADDING-TOP: 10px" width=488><A
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<DIV style="FONT-SIZE: 18pt; COLOR: #990000; FONT-FAMILY: 楷体_GB2312"
align=center><B>Java手机游戏开发实例</B></DIV><BR>
<DIV style="FONT-SIZE: 18px; COLOR: #990000; FONT-FAMILY: ; 宋体: "
align=center>用MIDP实现贪吃蛇游戏(3)</DIV>
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<P><SPAN class=f14> <STRONG>WormMain类</STRONG>
<BR><BR> 最主要的类，继承自MIDlet父类并实现了CommandListener接口。<BR><BR> protected void
startApp()<BR><BR> 实现MIDlet父类的方法，当开始程序时首先执行这个函数<BR><BR></P>
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<P>//
显示画板<BR><BR>Display.getDisplay(this).setCurrent(theGame);<BR><BR>try
{<BR><BR>// 开始游戏线程<BR><BR>Thread myThread = new
Thread(theGame);<BR><BR>myThread.start();<BR><BR>} catch (Error e)
{<BR><BR>destroyApp(false);<BR><BR>notifyDestroyed();
}<BR><BR>public void commandAction(Command c, Displayable
d)<BR><BR> 接受并处理用户输入事件<BR><BR>// 重新开始<BR><BR>if (c == restartCmd)
{<BR><BR>theGame.restart();<BR><BR>}; <BR><BR>// 改变难度等级 <BR><BR>if
(c == levelCmd) {<BR><BR>Item[] levelItem = {<BR><BR>new
Gauge("Level", true, 9, theGame.getLevel())<BR><BR>};<BR><BR>Form f
= new Form("Change Level",
levelItem);<BR><BR>f.addCommand(OKCmd);<BR><BR>f.addCommand(cancelCmd);<BR><BR>f.setCommandListener(this);<BR><BR>Display.getDisplay(this).setCurrent(f);<BR><BR>};<BR><BR>//
离开游戏<BR><BR>if (c == exitCmd)
{<BR><BR> destroyApp(false);<BR><BR> notifyDestroyed();<BR><BR>};<BR><BR>//
开始游戏<BR><BR>if (c == startCmd)
{<BR><BR>theGame.removeCommand(startCmd);<BR><BR>theGame.addCommand(restartCmd);<BR><BR>theGame.restart();<BR><BR>};<BR><BR>//
确定<BR><BR>if (c == OKCmd) {<BR><BR>Form f = (Form)d;<BR><BR>Gauge g
=
(Gauge)f.get(0);<BR><BR>theGame.setLevel(g.getValue());<BR><BR>Display.getDisplay(this).setCurrent(theGame);<BR><BR>};<BR><BR>//
取消<BR><BR>if (c == cancelCmd)
{<BR><BR>Display.getDisplay(this).setCurrent(theGame);<BR><BR>};<BR><BR>//
打开音效<BR><BR>if (c == audioOnCmd) {<BR><BR>/* 打开音效
*/<BR><BR>theGame.createAudioPlayer();<BR><BR>theGame.removeCommand(audioOnCmd);<BR><BR>theGame.addCommand(audioOffCmd);<BR><BR>};<BR><BR>//
关闭音效<BR><BR>if (c == audioOffCmd) {<BR><BR>/* 关闭音效
*/<BR><BR>theGame.destroyAudioPlayer();<BR><BR>theGame.removeCommand(audioOffCmd);<BR><BR>theGame.addCommand(audioOnCmd);<BR><BR>}<BR></P></TD></TR></TBODY></TABLE></SPAN><BR><BR></DIV></TD></TR>
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<DIV align=center>来源：天极网 作者：
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