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📄 基于nokia手机的移动游戏开发(5).htm

📁 这是很好的J2ME实例教程,很适合初学者!
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            <P>import javax.microedition.lcdui.*;<BR>import 
            com.nokia.mid.ui.*;<BR>public class HighScore extends FullCanvas 
            {<BR>private GameMIDlet parent = null;<BR>private MainMenu menu = 
            null;<BR>public HighScore(GameMIDlet parent, MainMenu menu) 
            {<BR>this.parent = parent;<BR>this.menu = menu;<BR>}<BR>protected 
            void paint(Graphics g) {<BR>//Paint the high scores 
            here<BR>}<BR>public void keyPressed(int keyCode) {<BR>if (keyCode != 
            KEY_END) {<BR>//selection list to the 
            screen<BR>parent.setDisplayable(menu);<BR>}<BR>}<BR>} 
        </P></TD></TR></TBODY></TABLE>
      <P><BR>  6 
      教学屏幕<BR><BR>  当用户从主菜单中选择"Instructions"条目的时候,就会显示出游戏的规则。游戏规则文本放置在Form实例中。Form中应该包含用于进入下一条教学规则的命令(例如,标签"More")和回到主菜单的命令(例如,标签"Back")。"More"一般由左功能键控制,而"Back"由右功能键控制。如果教学规则里包含动画,那么这些动画应该使用全屏画布(FullCanvas)来显示。按下左功能键将跳过动画进入下一个教学屏幕。按下右功能键,用户将从动画中回到主菜单。键End将结束应用程序。下面的代码是文字教学规则和动画的框架。<BR><BR></P>
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            <P>//Text instructions. Text can be written in constructor or in 
            own<BR>method.<BR>//Developer should remember that also instruction 
            texts should be<BR>//internationalized<BR>import 
            javax.microedition.lcdui.*;<BR>public class Instructions extends 
            Form implements CommandListener {<BR>//Command for going next 
            instruction if needed<BR>private Command more = new 
            Command(<BR>Resources.getString(Resources.ID_GAME_MORE),<BR>Command.OK, 
            1);<BR>//Command for going back to the main menu<BR>private Command 
            back = new Command("", Command.BACK, 2);<BR>private GameMIDlet 
            parent = null;<BR>private MainMenu menu = null;<BR>public 
            Instructions(String title, GameMIDlet parent, MainMenu<BR>menu) 
            {<BR>super(title);<BR>this.parent = parent;<BR>this.menu = 
            menu;<BR>this.addCommand(back);<BR>this.addCommand(more);<BR>this.setCommandListener(this);<BR>}<BR>public 
            void commandAction(Command p0, Displayable p1) {<BR>if (p0 == more) 
            {<BR>//go to the next if needed e.g 
            animation<BR>parent.setDisplayable(new 
            InstructionAnimation(parent));<BR>}<BR>else if (p0 == back) 
            {<BR>parent.setDisplayable(menu);<BR>}<BR>}<BR>}<BR>//Instruction 
            animation<BR>import javax.microedition.lcdui.*;<BR>import 
            com.nokia.mid.ui.*;<BR>public class InstructionAnimation extends 
            FullCanvas {<BR>private GameMIDlet parent = null;<BR>public 
            InstructionAnimation(GameMIDlet parent) {<BR>this.parent = 
            parent;<BR>}<BR>protected void paint(Graphics g) {<BR>//Do the 
            animation here<BR>}<BR>public void keyPressed(int keyCode) {<BR>if 
            (keyCode == KEY_SOFTKEY1) {<BR>//go to the next instruction screen 
            if needed<BR>}<BR>else if (keyCode == KEY_SOFTKEY2) {<BR>//selection 
            list to the screen<BR>parent.setDisplayable(new 
            MainMenu(<BR>Resources.getString 
            (<BR>Resources.ID_GAME_NAME),<BR>List.IMPLICIT, 
            parent));<BR>}<BR>}<BR>}</P></TD></TR></TBODY></TABLE>
      <P><BR>  7关于(About)屏幕<BR><BR>  关于(About)屏幕显示游戏制作公司的消息文本或标志。当用户从主菜单中选择"About"选项的时候,就会启动这个屏幕。和教学规则页面一样,关于屏幕页面如果只需要文本信息的话,那么可以使用Form来实现。如果需要图像或动画,那么应该使用Canvas或FullCanvas。<BR><BR></P>
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            <P>//Text "About" code skeleton<BR>import 
            javax.microedition.lcdui.*;<BR>public class About extends Form 
            implements CommandListener {<BR>//Command for going back to the main 
            menu<BR>private Command back = new Command("", Command.BACK, 
            1);<BR>private GameMIDlet parent = null;<BR>private MainMenu menu = 
            null;<BR>public About(String title, GameMIDlet parent, MainMenu 
            menu) {<BR>super(title);<BR>this.parent = parent;<BR>this.menu = 
            menu;<BR>this.addCommand(back);<BR>this.setCommandListener(this);<BR>}<BR>public 
            void commandAction(Command p0, Displayable p1) {<BR>if (p0 == back) 
            {<BR>parent.setDisplayable(menu);<BR>}<BR>}<BR>}</P></TD></TR></TBODY></TABLE>
      <P><BR>  8 退出<BR><BR>  从主菜单中选择"Exit game"选项来中止游戏并释放所有的资源。 <BR><BR>  9 
      Resources类<BR><BR>  Resources类不是一个用户界面类,与本文中介绍的其他类不同。这个类处理国际化问题。<BR><BR></P>
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            <P>/**<BR>* A simple class to simulate a resource bundle.<BR>* 
            Modify the contents of this class according to the<BR>* 
            locales/languages you want your application to support.<BR>* In your 
            application, retrieve a string using code such as the<BR>* 
            following:<BR>* &lt;pre&gt;<BR>* &lt;code&gt;String s = 
            Resources.getString(Resources.ID_GAME_NEW);<BR>* 
            &lt;/code&gt;&lt;/pre&gt;<BR>* Copyright (C) 2002 Nokia 
            Corporation<BR>*/<BR>public class Resources {<BR>// Identifiers for 
            text strings.<BR>public static final int ID_GAME_NEW = 0;<BR>public 
            static final int ID_GAME_OPTIONS = 1;<BR>public static final int 
            ID_GAME_HIGHSCORES = 2;<BR>public static final int 
            ID_GAME_INSTRUCTIONS = 3;<BR>public static final int ID_GAME_ABOUT = 
            4;<BR>public static final int ID_GAME_CONTINUE = 5;<BR>public static 
            final int ID_GAME_BACK = 6;<BR>public static final int ID_GAME_MORE 
            = 7;<BR>public static final int ID_GAME_EXIT = 8;<BR>public static 
            final int ID_GAME_LEVEL = 9;<BR>public static final int 
            ID_GAME_SOUNDS = 10;<BR>public static final int ID_GAME_VIBRA = 
            11;<BR>public static final int ID_GAME_NAME = 12;<BR>// List of 
            supported locales.<BR>// The strings are Nokia-specific values<BR>// 
            of the "microedition.locale" system property.<BR>private static 
            final String[] supportedLocales = {<BR>"en", "fi-FI", "fr", 
            "de"<BR>};<BR>//NOTE: default language must be the first 
            one<BR>//for getString to work!<BR>// Strings for each locale, 
            indexed according to the<BR>// contents of 
            supportedLocales<BR>private static final String[][] strings = {<BR>{ 
            "New game", "Settings", "High scores", 
            "Instructions",<BR>"About","Continue", "Back", "More", "Exit 
            game",<BR>"Level", "Sounds","Shakes", "Game name" },<BR>{ "Uusi 
            peli", "Asetukset", "Huipputulokset", 
            "Peliohjeet",<BR>"Tietoja","Jatka", "Poistu", "Jatka", 
            "Poistu",<BR>"Vaikeusaste", "Peli??net", 
            "V?rin?tehosteet",<BR>"Pelin nimi" },<BR>{ "Nouveau jeu", 
            "Paramètres", "Scores", "Instructions",<BR>"A propos","Continuer", 
            "Retour", "Suite", "Sortir",<BR>"Niveau", "Sons", "Vibrations", "Jeu 
            nom" },<BR>{ "Neues Spiel", "Einstellungen", "Rekord", 
            "Anleitung",<BR>"über","Weiter", "Zurück", "Weiter", 
            "Beenden",<BR>"Ebene", "Ton", "Vibrationen", "Spiel name" 
            }<BR>};<BR>/**<BR>* Gets a string for the given key.<BR>* @param key 
            Integer key for string<BR>* @return The string<BR>*/<BR>public 
            static String getString(int key) {<BR>String locale = 
            System.getProperty("microedition.locale");<BR>if (locale == null) 
            {<BR>locale = new String(""); // use empty instead of 
            null<BR>}<BR>// find the index of the locale id<BR>int localeIndex = 
            -1;<BR>for (int i = 0; i &lt; supportedLocales.length; i++) {<BR>if 
            (locale.equals(supportedLocales[i])) {<BR>localeIndex = 
            i;<BR>break;<BR>}<BR>}<BR>// not found<BR>if (localeIndex == -1) 
            {<BR>// defaults to first language, in this example 
            English<BR>return strings[0][key];<BR>}<BR>return 
            strings[localeIndex][key];<BR>}<BR>}</P></TD></TR></TBODY></TABLE></SPAN><BR><BR></DIV></TD></TR>
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