game2.txt

这是一个用java编写的俄罗斯方块游戏

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<BKSIZE; i++)
                for(int j=0; j<BKSIZE; j++)
                    this.bkdata[i][j] = bkdata1[i][j];
            this.rpos = rpos;
            this.cpos = cpos;
        }
        public Block(final Block bk)
        {
            //this.bkdata = (boolean[][])bk.bkdata.clone();
            for(int i=0; i<BKSIZE; i++)
                for(int j=0; j<BKSIZE; j++)
                    this.bkdata[i][j] = bk.bkdata[i][j];
            this.rpos = bk.rpos;
            this.cpos = bk.cpos;
        }
        public void doAction(int action)
        {
            switch(action)
            {
                case Message.MOVE_UP:
                    this.rpos--;
                    break;
                case Message.MOVE_DOWN:
                    this.rpos++;
                    break;
                case Message.MOVE_LEFT:
                    this.cpos--;
                    break;
                case Message.MOVE_RIGHT:
                    this.cpos++;
                    break;
                case Message.ROTATE_CLOCK:
                {
                    final int x0 = BKSIZE/2;
                    final int y0 = BKSIZE/2;
                    //boolean bkdata1[][] = (boolean[][])this.bkdata.clone();
                    boolean bkdata1[][] = new boolean[BKSIZE][BKSIZE];
                    for(int i=0; i<BKSIZE; i++)
                        for(int j=0; j<BKSIZE; j++)
                            bkdata1[i][j] = this.bkdata[i][j];
                    for(int x=0; x<BKSIZE; x++)
                        for(int y=0; y<BKSIZE; y++)
                            this.bkdata[y][-x+2*y0] = bkdata1[x][y];
                    break;
                }
            case Message.ROTATE_ANTICLOCK:
            {
                final int x0 = BKSIZE/2;
                final int y0 = BKSIZE/2;
                //boolean bkdata1[][] = (boolean[][])this.bkdata.clone();
                boolean bkdata1[][] = new boolean[BKSIZE][BKSIZE];
                for(int i=0; i<BKSIZE; i++)
                    for(int j=0; j<BKSIZE; j++)
                        bkdata1[i][j] = this.bkdata[i][j];
                for(int x=0; x<BKSIZE; x++)
                    for(int y=0; y<BKSIZE; y++)
                        this.bkdata[-y+2*x0][x] = bkdata1[x][y];
                break;
            }
          }
      }
} 
private class Board
    {
        public boolean bddata[][] = new boolean[BDHEIGHT][BDWIDTH];
        public Board()
        {
            clear();
        }
        public Board(final Board board)
        {
            //this.bddata = (boolean[][])board.bddata.clone();
            for(int i=0; i<BDHEIGHT; i++)
                for(int j=0; j<BDWIDTH; j++)
                    this.bddata[i][j] = board.bddata[i][j];
        }
        public void clear()
        {
            for(int i=0; i<BDHEIGHT; i++)
                for(int j=0; j<BDWIDTH; j++)
                    bddata[i][j] = false;
        }
    }
    ////// Inner class Message /////////
    private class Message
    {
        public static final int MOVE_UP = 1;
        public static final int MOVE_DOWN = 2;
        public static final int MOVE_LEFT = 3;
        public static final int MOVE_RIGHT = 4;
        public static final int ROTATE_CLOCK = 5; //rotate clock-wise
        public static final int ROTATE_ANTICLOCK = 6;//rotate anticlock-wise
        public Message(int action)
        {
            this.action = action;
        }
        public int getAction()
        {
            return this.action;
        }
        private int action;
    }
    //////  Inner class Queue  ///////
    //////////// fields of class Game ////////////////
    private Board m_board = new Board(); //仅由消息处理器线程访问
    private Block m_block = null; //当前存在的块
    private MessageQueue m_msgQueue = new MessageQueue(); //由消息处理器和awt线程访问
    private BlockDataPoolQueue m_blockDataPoolQueue = new BlockDataPoolQueue();
    private int m_S = 0;
    ///// method run  主消息处理处理线程
    public void run()
    {
        boolean bkdataPool[][][] ={
            {{false,false,true,false,false},
            {false,false,true,false,false},
            {false,false,true,false,false},
            {false,false,true,false,false},
            {false,false,true,false,false}},
            {{false,false,false,false,false},
            {false,true,true,true,false},
            {false,false,true,false,false},
            {false,false,true,false,false},
            {false,false,true,false,false},
            {false,false,false,false,false}},
            {{false,false,false,false,false},
            {false,false,true,false,false},
            {false,true,true,true,false},
            {false,false,true,false,false},
            {false,false,false,false,false}},
            {{false,false,false,false,false},
            {false,false,false,false,false},
            {false,true,true,true,false},
            {false,true,false,true,false},
            {false,false,false,false,false}},
            {{false,false,false,false,false},
            {false,false,false,false,false},
            {false,true,true,true,false},
            {false,false,true,false,false},
            {false,false,false,false,false}}};
            repaintRequest();
            while(true)
            {
                switch(m_S)
                {
                    case 0:
                        try
                        {
                            Thread.currentThread().sleep(50);
                        }
                        catch (InterruptedException ex)
                        {
                        }
                        break;
                    case 1:
                        Block bk1 = new Block(m_blockDataPoolQueue.getNextBlockData(),0,(BDWIDTH-BKSIZE)/2);
                        if( ! isCollided(m_board,bk1)){
                            m_block = bk1;
                            m_S = 2;
                        }else
                            m_S = 3;
                        repaintRequest();
                        break;
                    case 2:
                        Message msg;
                        synchronized(m_msgQueue) //等待新的消息
                        {
                            while(m_msgQueue.empty()){
                                try{
                                    m_msgQueue.wait();
                                }catch(InterruptedException e){
                                }
                            }
                            msg = (Message)m_msgQueue.dl();
                        }
                        Block bk2 = new Block(m_block);
                        bk2.doAction(msg.getAction());
                        if(! isCollided(m_board,bk2)){ //动作可以执行
                            m_block.doAction(msg.getAction());
                            m_S = 2;
                            repaintRequest();
                        }else if(msg.getAction()==Message.MOVE_DOWN){ //向下移动的动作不能执行
                            merge(m_board,m_block);
                            m_block = null;
                            packUpBoard(m_board);
                            m_S = 1;
                            repaintRequest();
                        }
                        break;
                    case 3:
                        try
                        {
                            Thread.currentThread().sleep(50);
                        }
                        catch (Exception ex)
                        {
                        }
                        break;
                }
            }
    } 
private boolean isCollided(final Block bk1,final Block bk2) //判断两方块是否重叠
    {
        for(int r1=0; r1<BKSIZE; r1++)
        {
            int r2 = r1+bk1.rpos-bk2.rpos;
            if(r2>=0 && r2<BKSIZE)
            {
                for(int c1=0; c1<BKSIZE; c1++)
                {
                    int c2 = c1+bk1.cpos-bk2.cpos;
                    if(c2>=0 && c2<BKSIZE)
                        if(bk1.bkdata[r1][c1] && bk2.bkdata[r2][c2])
                            return true;
                }
            }
        }
        return false;
    }
    private boolean isCollided(final Board board,final Block block) //判断某方块与某底板是否重叠
    {
        for(int i=0; i<BKSIZE; i++){
            for(int j=0; j<BKSIZE; j++){
                if(block.rpos+i>=0 && block.rpos+i<BDHEIGHT && block.cpos+j>=0 && block.cpos+j<BDWIDTH){
                    if(block.bkdata[i][j] && board.bddata[i+block.rpos][j+block.cpos])
                        return true;
                    }else if(block.bkdata[i][j])
                        return true;
            }
        }
        return false;
    }
    private void merge(Board board,final Block block) //合并board <=== block
    {
        for(int i=0; i<BKSIZE; i++)
            for(int j=0; j<BKSIZE; j++)
                if(block.rpos+i>=0 && block.rpos+i<=BDHEIGHT-1 && block.cpos+j>=0 && block.cpos+j<=BDWIDTH-1)
                    board.bddata[block.rpos+i][block.cpos+j] |= block.bkdata[i][j];
    }
    private int packUpBoard(Board board) //消去满行
    {
        int linesDeleted = 0;
        for(int i=BDHEIGHT-1; i>=0;){ //检测第i行
            boolean full = true;
            for(int j=0; j<BDWIDTH; j++){
                if(! board.bddata[i][j]){
                    full = false;
                    break;
                }
            }
            if(full){ //第i行为满行
                for(int k=i-1; k>=0; k--){
                    for(int c=0; c<BDWIDTH; c++)
                        board.bddata[k+1][c] = board.bddata[k][c];
                }
                for(int c=0; c<BDWIDTH; c++)
                    board.bddata[0][c] = false;
                linesDeleted++;
            }else
                i--;
        }
        return linesDeleted;
    }
//Constructor