//界面package com.fry.tetris;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.Image;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;import java.util.Arrays;import java.util.Timer;import java.util.TimerTask;import javax.imageio.ImageIO;import javax.swing.JFrame;import javax.swing.JPanel;/** * 俄罗斯方块游戏面板 * */public class Tetris extends JPanel{/** 正在下落方块 */private Tetromino tetromino;/** 下一个下落方块 */private Tetromino nextOne;/** 行数 */public static final int ROWS = 20;/** 列数 */public static final int COLS = 10;/** 墙 */private Cell[][] wall = new Cell[ROWS][COLS]; /** 消掉的行数 */private int lines;/** 分数 */private int score;public static final int CELL_SIZE = 26;private static Image background;//背景图片public static Image I;public static Image J;public static Image L;public static Image S;public static Image Z;public static Image O;public static Image T;static{//加载静态资源的，加载图片//建议将图片放到 Tetris.java 同包中!//从包中加载图片对象，使用Swing API实现//Toolkit toolkit = Toolkit.getDefaultToolkit();//background = toolkit.getImage(//Tetris.class.getResource("tetris.png"));//T = toolkit.getImage(Tetris.class.getResource("T.png"));//S = toolkit.getImage(Tetris.class.getResource("S.png"));//Z = toolkit.getImage(Tetris.class.getResource("Z.png"));//L = toolkit.getImage(Tetris.class.getResource("L.png"));//J = toolkit.getImage(Tetris.class.getResource("J.png"));//I = toolkit.getImage(Tetris.class.getResource("I.png"));//O = toolkit.getImage(Tetris.class.getResource("O.png"));//import javax.imageio.ImageIO;try{background = ImageIO.read(Tetris.class.getResource("tetris.png"));T=ImageIO.read(Tetris.class.getResource("T.png"));I=ImageIO.read(Tetris.class.getResource("I.png"));S=ImageIO.read(Tetris.class.getResource("S.png"));Z=ImageIO.read(Tetris.class.getResource("Z.png"));L=ImageIO.read(Tetris.class.getResource("L.png"));J=ImageIO.read(Tetris.class.getResource("J.png"));O=ImageIO.read(Tetris.class.getResource("O.png"));}catch(Exception e){e.printStackTrace();}}public void action(){//tetromino = Tetromino.randomTetromino();//nextOne = Tetromino.randomTetromino();//wall[19][2] = new Cell(19,2,Tetris.T);startAction();repaint();KeyAdapter l = new KeyAdapter() {public void keyPressed(KeyEvent e) {int key = e.getKeyCode();if(key == KeyEvent.VK_Q){System.exit(0);//退出当前的Java进程}if(gameOver){if(key==KeyEvent.VK_S){startAction();}return;}//如果暂停并且按键是[C]就继续动作if(pause){//pause = falseif(key==KeyEvent.VK_C){continueAction();}return;}//否则处理其它按键switch(key){case KeyEvent.VK_RIGHT: moveRightAction(); break;case KeyEvent.VK_LEFT: moveLeftAction(); break;case KeyEvent.VK_DOWN: softDropAction() ; break;case KeyEvent.VK_UP: rotateRightAction() ; break;case KeyEvent.VK_Z: rotateLeftAction() ; break;case KeyEvent.VK_SPACE: hardDropAction() ; break;case KeyEvent.VK_P: pauseAction() ; break;}repaint();}};this.requestFocus();this.addKeyListener(l);}public void paint(Graphics g){g.drawImage(background, 0, 0, null);//使用this 作为观察者g.translate(15, 15);//平移绘图坐标系paintTetromino(g);//绘制正在下落的方块paintWall(g);//画墙paintNextOne(g);paintScore(g);}public static final int FONT_COLOR = 0x667799;public static final int FONT_SIZE = 0x20;private void paintScore(Graphics g) {Font f = getFont();//获取当前的 面板默认字体Font font = new Font(f.getName(), Font.BOLD, FONT_SIZE);int x = 290;int y = 162;g.setColor(new Color(FONT_COLOR));g.setFont(font);String str = "SCORE:" this.score;g.drawString(str, x, y);y =56;str = "LINES:" this.lines;g.drawString(str, x, y);y =56;str = "[P]Pause";if(pause){str = "[C]Continue";}if(gameOver){str = "[S]Start!";}g.drawString(str, x, y);}private void paintNextOne(Graphics g) {Cell[] cells = nextOne.getCells();for(int i=0; i<cells.length; i ){Cell c = cells[i];int x = (c.getCol() 10) * CELL_SIZE-1;int y = (c.getRow() 1) * CELL_SIZE-1;g.drawImage(c.getImage(), x, y, null);}}private void paintTetromino(Graphics g) {Cell[] cells = tetromino.getCells();for(int i=0; i<cells.length; i ){Cell c = cells[i];int x = c.getCol() * CELL_SIZE-1;int y = c.getRow() * CELL_SIZE-1;//g.setColor(new Color(c.getColor()));//g.fillRect(x, y, CELL_SIZE, CELL_SIZE);g.drawImage(c.getImage(), x, y, null);}}//在 Tetris 类 中添加 方法 paintWallprivate void paintWall(Graphics g){for(int row=0; row<wall.length; row ){//迭代每一行, i = 0 1 2 ... 19Cell[] line = wall[row];//line.length = 10for(int col=0; col<line.length; col ){Cell cell = line[col]; int x = col*CELL_SIZE; int y = row*CELL_SIZE;if(cell==null){//g.setColor(new Color(0));//画方形 //g.drawRect(x, y, CELL_SIZE, CELL_SIZE);}else{g.drawImage(cell.getImage(), x-1, y-1, null);}}}}/** * 在 Tetris(俄罗斯方块) 类中增加方法 * 这个方法的功能是：软下落的动作 控制流程 * 完成功能：如果能够下落就下落，否则就着陆到墙上， * 而新的方块出现并开始落下。 */public void softDropAction(){if(tetrominoCanDrop()){tetromino.softDrop();}else{tetrominoLandToWall();destroyLines();//破坏满的行checkGameOver();tetromino = nextOne;nextOne = Tetromino.randomTetromino();}}/** 销毁已经满的行，并且计分 * 1）迭代每一行 * 2）如果（检查）某行满是格子了 就销毁这行 **/public void destroyLines(){int lines = 0;for(int row = 0; row<wall.length; row ){if(fullCells(row)){deleteRow(row);lines ;}}// lines = ?this.lines = lines;//0 1 2 3 4this.score = SCORE_TABLE[lines];}private static final int[] SCORE_TABLE={0,1,10,30,200};// public boolean fullCells(int row){Cell[] line = wall[row];for(int i=0; i<line.length; i ){if(line[i]==null){//如果有空格式就不是满行return false;}}return true;}public void deleteRow(int row){for(int i=row; i>=1; i--){//复制 [i-1] -> [i] System.arraycopy(wall[i-1], 0, wall[i], 0, COLS);}Arrays.fill(wall[0], null);}/** 检查当前的4格方块能否继续下落 */public boolean tetrominoCanDrop(){Cell[] cells = tetromino.getCells();for(int i = 0; i<cells.length; i ){Cell cell = cells[i];int row = cell.getRow(); int col = cell.getCol();if(row == ROWS-1){return false;}//到底就不能下降了}for(int i = 0; i<cells.length; i ){Cell cell = cells[i];int row = cell.getRow(); int col = cell.getCol();if(wall[row 1][col] != null){return false;//下方墙上有方块就不能下降了}}return true;}/** 4格方块着陆到墙上 */public void tetrominoLandToWall(){Cell[] cells = tetromino.getCells();for(int i=0; i<cells.length; i ){Cell cell = cells[i];int row = cell.getRow();int col = cell.getCol();wall[row][col] = cell;}}public void moveRightAction(){tetromino.moveRight();if(outOfBound() || coincide()){tetromino.moveLeft();}}public void moveLeftAction(){tetromino.moveLeft();if(outOfBound() || coincide()){tetromino.moveRight();}}/** ... */private boolean outOfBound(){Cell[] cells = tetromino.getCells();for(int i=0; i<cells.length; i ){Cell cell = cells[i];int col = cell.getCol();if(col<0 || col>=COLS){return true;//出界了}}return false;}private boolean coincide(){Cell[] cells = tetromino.getCells();//for each 循环、迭代，简化了"数组迭代书写"for(Cell cell: cells){//Java 5 以后提供增强版for循环int row = cell.getRow();int col = cell.getCol();if(row<0 || row>=ROWS || col<0 || col>=COLS || wall[row][col]!=null){return true; //墙上有格子对象，发生重合}}return false;} /** 向右旋转动作 */public void rotateRightAction(){//旋转之前//System.out.println(tetromino);tetromino.rotateRight();//System.out.println(tetromino);//旋转之后if(outOfBound() || coincide()){tetromino.rotateLeft();}}/** Tetris 类中添加的方法 */public void rotateLeftAction(){tetromino.rotateLeft();if(outOfBound() || coincide()){tetromino.rotateRight();}}public void hardDropAction(){while(tetrominoCanDrop()){tetromino.softDrop();}tetrominoLandToWall();destroyLines();checkGameOver();tetromino = nextOne;nextOne = Tetromino.randomTetromino();}private boolean pause;private boolean gameOver;private Timer timer;/** Tetris 类中添加的方法, 用于启动游戏 */public void startAction(){clearWall();tetromino = Tetromino.randomTetromino();nextOne = Tetromino.randomTetromino();lines = 0; score = 0;pause=false; gameOver=false;timer = new Timer();timer.schedule(new TimerTask(){public void run() {softDropAction();repaint();}}, 700, 700);}private void clearWall(){//将墙的每一行的每个格子清理为nullfor(int row=0; row<ROWS; row ){Arrays.fill(wall[row], null);}}/** 在Tetris 类中添加方法 */public void pauseAction(){timer.cancel(); //停止定时器pause = true;repaint();}public void continueAction(){timer = new Timer();timer.schedule(new TimerTask() {public void run() {softDropAction();repaint();}}, 700, 700);pause = false;repaint();}/** 在 Tetris 类中添加 方法 */public void checkGameOver(){if(wall[0][4]==null){return;}gameOver = true;timer.cancel();repaint();}public static void main(String[] args) {JFrame frame = new JFrame();Tetris tetris = new Tetris();frame.add(tetris);frame.setSize(525, 590);frame.setUndecorated(false);//true去掉窗口框！frame.setTitle("俄罗斯方块");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//Location 位置 RelativeTo相对于 frame.setLocationRelativeTo(null);//使当前窗口居中frame.setVisible(true);tetris.action();}}
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