java小游戏（贪吃蛇、2048、石头剪刀布）

package game2048; import javax.swing.*; import java.awt.*; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.ArrayList; import java.util.List; import java.util.Random; public class GameView { private static final int jframeWidth = 405;//窗口宽高 private static final int jframeHeight = 530; private static int score = 0; Font topicFont = new Font("微软雅黑", Font.BOLD, 50);//主题字体 Font scoreFont = new Font("微软雅黑", Font.BOLD, 28);//得分字体 Font explainFont = new Font("宋体", Font.PLAIN, 20);//提示字体 private JFrame jframeMain; private JLabel jlblTitle; private JLabel jlblScoreName; private JLabel jlblScore; private JLabel jlblTip; private GameBoard gameBoard; public GameView() { init(); } public void init() { //1、创建窗口 jframeMain = new JFrame("2048小游戏"); jframeMain.setSize(jframeWidth, jframeHeight); jframeMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jframeMain.setLocationRelativeTo(null);//窗口显示位置居中 jframeMain.setResizable(false); jframeMain.setLayout(null);//设置绝对布局，以便后面可以用setBounds设置位置 jlblTitle = new JLabel("2048", JLabel.CENTER); jlblTitle.setFont(topicFont); jlblTitle.setForeground(Color.BLACK); jlblTitle.setBounds(50, 0, 150, 60); jframeMain.add(jlblTitle); //2、框架窗口搭建好，则需向里面开始添加内容 //设置字体及其颜色、位置 jlblScoreName = new JLabel("得 分", JLabel.CENTER); jlblScoreName.setFont(scoreFont); jlblScoreName.setForeground(Color.WHITE); jlblScoreName.setOpaque(true); jlblScoreName.setBackground(Color.GRAY); jlblScoreName.setBounds(250, 0, 120, 30); jframeMain.add(jlblScoreName); //3、得分区(得分名+分数) jlblScore = new JLabel("0", JLabel.CENTER); jlblScore.setFont(scoreFont); jlblScore.setForeground(Color.WHITE); jlblScore.setOpaque(true); jlblScore.setBackground(Color.GRAY); jlblScore.setBounds(250, 30, 120, 30); jframeMain.add(jlblScore); //4、提示说明区 jlblTip = new JLabel("操作: ↑ ↓ ← →, 按ENTER键重新开始 ", JLabel.CENTER); jlblTip.setFont(explainFont); jlblTip.setForeground(Color.DARK_GRAY); jlblTip.setBounds(0, 60, 400, 40); jframeMain.add(jlblTip); //5、主游戏面板区 gameBoard = new GameBoard(); gameBoard.setBounds(0, 100, 400, 400); gameBoard.setBackground(Color.GRAY); gameBoard.setFocusable(true);//焦点即当前正在操作的组件，也就是移动的数字 gameBoard.setLayout(new FlowLayout()); jframeMain.add(gameBoard); } public void showView() { jframeMain.setVisible(true); } // 游戏面板 class GameBoard extends JPanel implements KeyListener { private static final int CHECK_GAP = 10;//方格之间的间隙 private static final int CHECK_SIZE = 85;//方格大小 private static final int CHECK_ARC = 20;//方格弧度 private Check[][] checks = new Check[4][4]; private boolean isadd = true; public GameBoard() { initGame(); addKeyListener(this); } private void initGame() { score = 0; for (int indexRow = 0; indexRow < 4; indexRow++) { for (int indexCol = 0; indexCol < 4; indexCol++) { checks[indexRow][indexCol] = new Check(); } } // 最开始时生成两个数 isadd = true; createCheck(); isadd = true; createCheck(); } @Override public void keyPressed(KeyEvent e) { switch (e.getKeyCode()) { case KeyEvent.VK_ENTER: initGame();//重新开始游戏（初始化游戏） break; case KeyEvent.VK_LEFT: moveLeft(); createCheck();//调用一次方法创建一个方格数字 judgeGameOver();//创建后判断是否GameOver，若所有格子均满即跳出GameOver break; case KeyEvent.VK_RIGHT: moveRight(); createCheck(); judgeGameOver(); break; case KeyEvent.VK_UP: moveUp(); createCheck(); judgeGameOver(); break; case KeyEvent.VK_DOWN: moveDown(); createCheck(); judgeGameOver(); break; case KeyEvent.VK_ESCAPE: System.exit(1); break; default: break;//按其他键没有反应 } repaint();//刷新，会自动调用paint()方法，重新绘制移动后的图 } private void createCheck() { List<Check> list = getEmptyChecks(); if (!list.isEmpty() && isadd) { Random random = new Random(); int index = random.nextInt(list.size()); Check check = list.get(index); // 2, 4出现概率3:1 int randomValue = random.nextInt(4); check.value = (randomValue % 3 == 0 || randomValue % 3 == 1) ? 2 : 4;//只有[0,4)中的2才能生成4 isadd = false; } } // 获取空白方格 private List<Check> getEmptyChecks() { List<Check> checkList = new ArrayList<>(); for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { if (checks[i][j].value == 0) { checkList.add(checks[i][j]); } } } return checkList; } //是否全部格子占满，全部占满则GameOver private boolean judgeGameOver() { jlblScore.setText(score + ""); if (!getEmptyChecks().isEmpty()) { return false; } for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { //判断是否存在可合并的方格 if (checks[i][j].value == checks[i][j + 1].value || checks[i][j].value == checks[i + 1][j].value) { return false; } } } return true; } private void moveLeft() { //找到一个非空格子后checks[i][j].value > 0，可分为三种情况处理 for (int i = 0; i < 4; i++) { for (int j = 1, index = 0; j < 4; j++) { if (checks[i][j].value > 0) { //第一种情况：checks[i][j]（非第1列）与checks[i][index]的数相等，则合并乘以2，且得分增加 if (checks[i][j].value == checks[i][index].value) { score += checks[i][index].value *= 2; checks[i][j].value = 0; isadd = true; } else if (checks[i][index].value == 0) { //第二种：若checks[i][index]为空格子，checks[i][j]就直接移到最左边checks[i][index] checks[i][index].value = checks[i][j].value; checks[i][j].value = 0; isadd = true; } else if (checks[i][++index].value == 0) { //第三种：若checks[i][index]不为空格子，并且数字也不相等，若其旁边为空格子，则移到其旁边 checks[i][index].value = checks[i][j].value; checks[i][j].value = 0; isadd = true; } } } } }