DSGame.rar_java 手机游戏_java 游戏_手机 游戏_手机游戏

/* *DSGameApplication.java用于游戏的总实现 * 基于MVC技术 *　釆用了模型　显示　控制分开 */ import javax.microedition.lcdui.*; import java.util.*; /** * 游戏的描绘与操作所用的类 * * */ class DSGameApplication extends Canvas implements Runnable, CommandListener { //主类用于关闭 DSMain ds_Main ; /** Start指令变量 */ private Command ds_StartCmd = new Command("开始游戏", Command.SCREEN, 5); /** Exit指令变量 */ private Command ds_ExitCmd = new Command("退出游戏", Command.SCREEN, 1); /** Pause指令变量 */ private Command ds_PauseCmd = new Command("停止游戏", Command.SCREEN, 5); /** Resume指令变量 */ private Command ds_ResumeCmd = new Command("返回游戏", Command.SCREEN, 5); //用于help显示帮助 private Command ds_HelpCmd = new Command("显示帮助",Command.SCREEN,5); //显示版权信息 private Command ds_AboutCmd = new Command("关于游戏",Command.SCREEN,5); //用于保存屏幕的宽度 private int ds_ScreenWidth; //用于保存屏幕的产高度 private int ds_ScreenHeight; //显示当前分数 private int ds_Score = 0 ; // 储存默认字体的变量 private Font ds_Font = Font.getDefaultFont(); //以下是一些常量用于游戏的运行状态的标识 //用于游戏的状态标识 private int ds_GameState ; private DSPlayer ds_Player = new DSPlayer() ; private DSEnemy ds_Enemy = new DSEnemy() ; private DSPlayerBullet ds_PBullet = new DSPlayerBullet() ; private DSEnemyBullet ds_EBullet = new DSEnemyBullet() ; //为游戏的开始　　 private static final short DSGAMESTART = 1 ; //用于游戏的暂停 private static final short DSGAMEPAUSE = 2 ; //用于游戏的恢复 private static final short DSGAMERESUME = 3 ; //用于游戏的退出 private static final short DSGAMEEXIT = 4 ; //用于游戏的帮助 private static final short DSGAMEHELP = 5 ; //关于开发者与游戏本身 private static final short DSGAMEABOUT = 6 ; //用于实现屏幕的动作 //实现卷屏处理 Image ds_BKImage1 ; Image ds_BKImage2 ; int ds_BKY; //用于构造函数 DSGameApplication(DSMain Main ) { this.ds_Main = Main ; ds_ScreenWidth = getWidth(); ds_ScreenHeight = getHeight(); //将命令加入主菜单 addCommand( ds_StartCmd ); addCommand( ds_PauseCmd ); addCommand( ds_HelpCmd ); addCommand( ds_AboutCmd ); addCommand( ds_ExitCmd ); try{ ds_BKImage1 = Image.createImage("/sky.PNG"); ds_BKImage2 = Image.createImage("/sky.PNG"); }catch(Exception e) {} setCommandListener(this); } /** 指定的事件发生时被调用出来的方法 */ public void commandAction(Command c, Displayable s) { //当选取了开始游戏 if(c == ds_StartCmd ) { DS_GameInit(); new Thread(this).start(); repaint(); } //当选取了帮助页面　 else if( c == ds_HelpCmd ) DS_GameHelp(); //当按下中止 else if( c == ds_PauseCmd) DS_GamePause(); //当按下回复 else if(c == ds_ResumeCmd ) DS_GameResume(); //当按下关于作者 else if(c == ds_AboutCmd ) DS_GameAbout(); //当按下退出 else if(c== ds_ExitCmd ) DS_ExitCmd(); } //------------------------------------ //用于游戏的初始化工作 //　 // //------------------------------------ public void DS_GameInit() { ds_GameState = DSGAMESTART; ds_Player.DS_SetX( ds_ScreenWidth /2 ); ds_Player.DS_SetY( ds_ScreenHeight - ds_Player.DS_GetHeight() - 23 ); ds_Enemy.DS_SetX(30); ds_Enemy.DS_SetY(50); } //------------------------------------ //显示游戏的帮助页面 //　 // //------------------------------------ public void DS_GameHelp() { ds_GameState = DSGAMEHELP; repaint(); } //------------------------------------ //暂停游戏 //　 // //------------------------------------ public void DS_GamePause() { ds_GameState = DSGAMEPAUSE; repaint(); } //------------------------------------ //从暂停中恢复过来 //　 // //------------------------------------ public void DS_GameResume() { ds_GameState = DSGAMERESUME; repaint(); } //------------------------------------ //关于开发者 //　 // //------------------------------------ public void DS_GameAbout() { ds_GameState = DSGAMEABOUT; repaint(); } //------------------------------------ //退出游戏 //　 // //------------------------------------ public void DS_ExitCmd() { ds_GameState = DSGAMEEXIT; repaint(); ds_Main.DS_Exit(); } //------------------------------------ //用于游戏的系统调度 //　 // //------------------------------------ public void run() { if( ds_GameState == DSGAMESTART ) while(true) { //此处为背景的卷动 ds_BKY += 5 ; if(ds_BKY >= ds_ScreenHeight ) ds_BKY = 0 ; int x = ds_Enemy.DS_GetX() + ds_Enemy.DS_GetWidth()/2 ; if( x > ds_ScreenWidth -ds_Enemy.DS_GetWidth()/2 ) x = 0 ; ds_Enemy.DS_SetX(x); if( ds_PBullet.DS_GetActive() ) { int y = ds_PBullet.DS_GetY(); if(y == 0) ds_PBullet.DS_SetActive( false ); else ds_PBullet.DS_FrameMove(); DS_CheckCollsion( ds_Enemy,ds_PBullet ) ; } try{ Thread.sleep(80); }catch(Exception e) {} repaint(); } } //------------------------------------------ //算法为： // // // public boolean DS_CheckCollsion( DSEnemy ds_Enemy,DSPlayerBullet ds_PBullet ) { /* if( ds_Enemy.DS_GetX() == ds_PBullet.DS_GetX() ) { if(ds_Enemy.DS_GetY()-ds_Enemy.DS_GetWidth()-ds_PBullet.DS_GetY() >= 0 ) { ds_Enemy.DS_SetActive(false); ds_PBullet.DS_SetActive(false); ds_Score += 100 ; return true ; } }*/ int x1,x2,y1,y2; x1 = ds_Enemy.DS_GetX() + ds_Enemy.DS_GetWidth()/2 ; x2 = ds_PBullet.DS_GetX() + ds_PBullet.DS_GetWidth()/2 ; y1 = ds_Enemy.DS_GetY() + ds_Enemy.DS_GetHeight()/2; y2= ds_PBullet.DS_GetY() + ds_PBullet.DS_GetHeight()/2 ; int x3 = ds_Enemy.DS_GetWidth()/2+ds_PBullet.DS_GetWidth()/2 ; int y3 = ds_Enemy.DS_GetHeight()/2+ds_PBullet.DS_GetHeight()/2 ; if( ( x1-x2 <= x3 ) && ( x2-x1 <= x3 ) ) if( ( y1 -y2 <= y3 ) && ( y2-y1 <= y3 ) ) { ds_Enemy.DS_SetActive(false); ds_PBullet.DS_SetActive(false); ds_Score += 100 ; return true ; } return false ; } // //用于发射子弹 // // public void DS_Fire() { int x = ds_Player.DS_GetX() + ds_Player.DS_GetWidth()/2 ; int y = ds_Player.DS_GetY() + ds_Player.DS_GetHeight() ; ds_PBullet.DS_SetActive( true ); ds_PBullet.DS_SetX(x); ds_PBullet.DS_SetY(y); } //------------------------------------ // //　按键按下事件发生时被调用出来的方法 // //------------------------------------ protected synchronized void keyPressed(int keyCode) { if( ds_GameState != DSGAMESTART ) { //非游戏中，或在游戏中暂停时为return return; } //为清除按键时不处理 if(keyCode == 0) return; //for KDDI int ds_GameCode = getGameAction(keyCode); switch(ds_GameCode) { case LEFT: //按下向左按键时 int X = ds_Player.DS_GetX() - ds_Player.DS_GetWidth()/2 ; if( X<=0 ) X = 0; ds_Player.DS_SetX(X); repaint(); break; case RIGHT: //按下向右按键时 int x = ds_Player.DS_GetX()+ds_Player.DS_GetWidth()/2 ; if( x >= ds_ScreenWidth - ds_Player.DS_GetWidth()/2 ) x = ds_ScreenWidth - ds_Player.DS_GetWidth()/2 ; ds_Player.DS_SetX(x); repaint(); break; case FIRE: //按下Fire按键时 case UP: //按下向上按键时 DS_Fire(