求用JAVA写俄罗斯方块游戏的源代码。

俄罗斯方块-Java源代码提供导入Java . awt . *；导入Java . awt . event . *；//俄罗斯方块类public classes _ block extensions frame { public static Boolean is play = false；public static int level=1，score = 0；公共静态TextField scoreField、levelField公共静态MyTimer计时器；GameCanvas gameScrpublic static void main(string[]argus){ ers _ blockers =新人_ block("俄罗斯方块游戏V1.0作者:Vincent ")；window listener win _ listener = new win listener()；ers . addwindowlistener(win _ listener)；}//俄罗斯方块类构造方法ers _ block(string title){ super(title)；setSize(600，480)；set layout(new GridLayout(1，2))；game Cr = new game canvas()；games Cr . addkey listener(games Cr)；timer = new my timer(gameScr)；timer . set daemon(true)；timer . start()；timer . suspend()；添加(gameScr)；Panel rights Cr = new Panel()；rights Cr . set layout(new GridLayout(2，1，0，30))；rights Cr . setsize(120500)；add(rights Cr)；//右侧信息表单的布局my panel info SCR = new my panel()；info SCR . set layout(new GridLayout(4，1，0，5))；infoScr.setSize(120，300)；rights Cr . add(infos Cr)；//定义标签和初始值标签scorep = new label ("score:"，Label。左)；标签级别p =新标签("系列:"，标签。左)；score field = new TextField(8)；level field = new TextField(8)；score field . set editable(false)；level field . set editable(false)；info SCR . add(scorep)；info SCR . add(score field)；info SCR . add(levelp)；info SCR . add(level field)；scorep.setSize(新维度(20，60))；scoreField.setSize(新维度(20，60))；levelp.setSize(新维度(20，60))；levelField.setSize(新维度(20，60))；score field . settext(" 0 ")；level field . settext(" 1 ")；//右侧控件按钮窗体的布局my panel controls Cr = new my panel()；control SCR . set layout(new GridLayout(5，1，0，5))；rights Cr . add(controls Cr)；//定义按钮play Button play_b = new Button("开始游戏")；play_b.setSize(新维度(50，200))；play_b.addActionListener(新命令(Command.button_play，gameScr))；//定义按钮级别up button level _ up _ b = new button("改善系列")；level_up_b.setSize(新维度(50，200))；level _ up _ b . addactionlistener(new Command(Command . button _ level up，gameScr))；//定义按钮级别down button level _ down _ b = new button(" reduce series ")；level_down_b.setSize(新维度(50，200))；level _ down _ b . addactionlistener(new Command(Command . button _ level down，gameScr))；//定义按钮级暂停按钮pause _ b = new按钮("游戏暂停")；pause_b.setSize(新维度(50，200))；pause _ b . addactionlistener(new Command(Command . button _ pause，gameScr))；//定义按钮Quit Button quit_b = new Button("退出游戏")；quit_b.setSize(新维度(50，200))；quit_b.addActionListener(新命令(Command.button_quit，gameScr))；controls Cr . add(play _ b)；control SCR . add(level _ up _ b)；control SCR . add(level _ down _ b)；control SCR . add(pause _ b)；control SCR . add(quit _ b)；set visible(true)；games Cr . request focus()；} }//重写MyPanel类，在Panel类mypanel extensions panel周围留出空间{ public inserts get inserts(){ return new inserts(30，50，30，50)；} }//游戏画布类游戏画布扩展Canvas实现Key Listener { final int unitsize = 30；//小方块边长int rowNum//正方形的行数为int columnNum//正方形中的列数，int maxAllowRowNum//允许多少行未切割的int blockInitRow//新块起始行的坐标，int blockInitCol//新块的起始列坐标int[][]scrar；//屏幕数组块b；//对方快速参考canvas类GameCanvas(){ rowNum = 15的构造方法；column num = 10；maxAllowRowNum = rowNum-2；b =新块(this)；block initrow = rowNum-1；blockInitCol = column num/2-2；scrArr = new int[32][32]；}//初始化屏幕并清除屏幕数组以void init SCR(){ for(int I = 0；我& ltrowNumi++)for(int j = 0；j & ltcolumnNumj++)scrArr[j]= 0；b . reset()；repaint()；}//刷新画布方法public void paint(graphics g){ for(int I = 0；我& ltrowNumi++)for(int j = 0；j & ltcolumnNumj++) drawUnit(i，j，scrArr[j])；}//绘制一个框的方法public void draw unit (int row，int col，int type){ scrarr[row][col]= type；graphics g = get graphics()；Tch(type){ //表示绘制快速case 0的方法:g . set color(color . black)；打破；//绘制case 1:g . set color(color . blue)以背景为颜色；打破；//画一个下落的正方形案例2:g . set color(color . magenta)；打破；//画图的方法已经落后} g.fill3drect (col * unitsize，getsize()。height-(row+1) * unitsize，unitsize，true)；g . dispose()；} public Block get Block(){ return b；//返回对块实例的引用}//返回屏幕数组中位置(row，col)的属性值，public int getscrarrxy (int row，int col) {if (row