[JAVA] 俄罗斯方块游戏

public class Game extends java.awt.Frame
{
public Game()
{
setTitle("俄罗斯方块游戏 - Ghost Valley");
addWindowListener(new java.awt.event.WindowAdapter(){
public void windowClosing(java.awt.event.WindowEvent e){
dispose();
System.exit(0);
}
});
GameCanvas gameCanvas = new GameCanvas();
setLayout(new java.awt.BorderLayout());
add(gameCanvas,"Center");
setResizable(false);
setLocation((java.awt.Toolkit.getDefaultToolkit().getScreenSize().width-gameCanvas.getPreferredSize().width)/2,(java.awt.Toolkit.getDefaultToolkit().getScreenSize().height-gameCanvas.getPreferredSize().height)/2);
pack();
show();
}
public static void main(String args[]){ new Game(); }
}
class GameCanvas extends java.awt.Canvas implements Runnable
{
public static final int BKSIZE = 5;
public static final int BDWIDTH = 20;
public static final int BDHEIGHT = 30;
////// Inner class Block////////
private class Block
{
public boolean bkdata[][] = new boolean[BKSIZE][BKSIZE];
public int rpos,cpos;
public Block(final boolean bkdata1[][],int rpos,int cpos)
{
//this.bkdata = (boolean[][])bkdata1.clone();
for(int i=0; i=0 && block.cpos+j