mainmenu.java

这是一款功能完备的横版闯关手机游戏

        }
        //g.setColor(0xff0000);
        //g.setFont(HF.SMALL_FONT);
        //g.drawString("试玩版",10,10,Graphics.LEFT|Graphics.TOP);
        if(bExit) {
            exitGame();
        }
    }
    
    //绘制菜单
    public void drawMenu(Graphics g) {
        g.setFont(HF.MEDIUM_FONT);
        g.setColor(0xff0000);
        if(mItemIndex == 2)
            g.drawString(mMenuItems[mItemIndex]+(HF.sound?" 开":" 关"),86,164,Graphics.HCENTER|Graphics.BOTTOM);
        else
            g.drawString(mMenuItems[mItemIndex],86,164,Graphics.HCENTER|Graphics.BOTTOM);
    }
    
    public static void drawMenuList(Graphics g, String menuList, int borderColor, int highLightColor,
            int screenWidth, int screenHeight, int curIndex) {
        if (menuList == null)
            return;
        int fontHeight = g.getFont().getHeight();
        int itemCount = 0;
        int pos1 = 0, pos2 = 0;
        while ( (pos1 = menuList.indexOf("&", pos2)) != -1) { //计算要绘制的菜单项个数
            itemCount++;
            pos2 = pos1 + 1;
        }
        int itemWidth = 2 * screenWidth / 3 + 5; //每个菜单项的宽度
        int itemHeight = fontHeight + 1; //高度
        int listHeight = (itemCount) * itemHeight; //要绘制的菜单列表的高度
        int x = 0;
        int y = screenHeight - listHeight - fontHeight - 4;
        drawFrame(g, borderColor, x, y, itemWidth, listHeight + 1); //绘制菜单的外框
        drawFrame(g, HF.COLOR_BLACK, x + 2, y + 2, itemWidth, listHeight);
        drawFrame(g, HF.COLOR_WHITE, x + 3, y + 3, itemWidth - 1, listHeight - 1);
        
        x = x + 6;
        y = y + 4;
        pos1 = pos2 = 0;
        int index = 0;
        
        while ( (pos1 = menuList.indexOf("&", pos2)) != -1) {
            if (index == curIndex) {
                drawFrame(g, highLightColor, x - 3, y - 2, itemWidth, itemHeight);
                g.setColor(HF.COLOR_RED);
                g.fillRoundRect(x + 1, y - 1, itemHeight - 2, itemHeight - 2, 4, 4);
                g.setColor(HF.COLOR_YELLOW);
            } else
                g.setColor(HF.COLOR_BLACK);
            g.drawSubstring(menuList, pos2, pos1 - pos2, x + 25, y, Graphics.LEFT | Graphics.TOP);
            index++;
            y = y + itemHeight;
            pos2 = pos1 + 1;
        }
    }
    
    //处理按键事件
    public void keyPressed(int keyCode) {
        if(bExit)
            return;
        if (mState ==2) return; //屏蔽还没有进入游戏时的按键
        
        if (keyCode == -6) { //左手边的选择键
            System.out.println(""+mState);
            if(mState==0) {
                //stopSplash=true;
                return;
            }
/*            if (mShowMenu == false) { //显示菜单
                mShowMenu = true;
                repaint(0, 0, mCanvasWidth, mCanvasHeight);
            }
            else*/
            {
                itemSelected(mItemIndex); //进入游戏
            }
            return;
        } else if (keyCode == -7) { //右上角的选择键
            
            return;
        }
        int action = getGameAction(keyCode);
        switch (action) {
            case DOWN:
                mItemIndex = (mItemIndex + 1) % 5;
                repaint(0, 0, mCanvasWidth, mCanvasHeight);
                break;
            case UP:
                mItemIndex = (mItemIndex + 4) % 5;
                repaint(0, 0, mCanvasWidth, mCanvasHeight);
                break;
            case FIRE:
                itemSelected(mItemIndex); //处理相应的选项
                break;
        }
    }
    
    //绘制方框
    public static void drawFrame(Graphics g, int bgColor, int x, int y, int width, int height) {
        g.setColor(bgColor);
        g.fillRect(x, y, width, height);
    }
    
    //使用指定的颜色清屏
    public void clearScreen(Graphics g, int bgColor) {
        g.setColor(bgColor);
        g.fillRect(0, 0, mCanvasWidth, mCanvasHeight);
    }
    
    //处理菜单项的选择
    public void itemSelected(int index) {
        switch (index) {
            case 0:
                startGame();
                break;
            case 1:
                showHelpInfo();
                break;
            case 2:
                HF.sound = !HF.sound;
                if(!HF.sound) {
                    title.stop();
                } else {
                    title.play();
                }
                repaint(0, 0, mCanvasWidth, mCanvasHeight);
                break;
            case 3:
                showAbout();
                break;
            case 4:
                bExit = true;
                repaint(0, 0, mCanvasWidth, mCanvasHeight);
                //exitGame();
                break;
        }
    }
    boolean bIsGame = false;
    boolean bExit = false;
    //启动游戏
    protected void startGame() {
        bIsGame = true;
        title.stop();
        mGameCanvas.start();
        mDisplay.setCurrent(mGameCanvas);
    }
    
    //显示排行榜
    public void showRolls() {
        mDataForm.showLocalRolls();
        mDisplay.setCurrent(mDataForm);
    }
    
    //显示产品信息
    protected void showProductInfo() {
        mDataForm.setState(NetDataForm.STATE_MSGDISPLAY);
        mDataForm.set("关于游戏", STR_PRODUCTINFO);
        mDisplay.setCurrent(mDataForm);
        
    }
    
    //显示关于我们
    protected void showAbout() {
        mDataForm.setState(NetDataForm.STATE_MSGDISPLAY);
        mDataForm.set("关于我们", STR_ABOUT);
        mDisplay.setCurrent(mDataForm);
    }
    
    //显示游戏规则
    protected void showHelpInfo() {
        mDataForm.setState(NetDataForm.STATE_MSGDISPLAY);
        mDataForm.set("游戏帮助", STR_HELPINFO); //"左键或者4键向左移动&右键或者6键向右移动&向上键或2键跳起");
        mDisplay.setCurrent(mDataForm);
    }
    
    public void release() {
        if (mGameCanvas != null)
            mGameCanvas.release();
    }
    
    //退出游戏
    protected void exitGame() {
        mMIDlet.quitApp();
    }
    protected void resume() {
        if(bIsGame) {
            mGameCanvas.resume();
            return;
        }
        if(bPause ) {
            bPause = false;
        }
    }
    boolean bPause = false;
    protected void pause() {
        if(bIsGame) {
            mGameCanvas.pause();
            return;
        }
        if(!bPause ) {
            bPause = true;
            if(HF.sound) {
                title.stop();
            }
        }
    }
}