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用JAVA实现2048小游戏
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前言今天给大家分享一个简单的游戏——2048，想必大家平常都玩过这款，那么今天我就给大家分享一下这游戏的代码吧。下面直接给大家上代码展示！！ 一、代码 package com.company; import java.awt.*; import java.awt.event.*; import java.util.Random; import javax.swing.*; //继承 JPanel 用于我们游戏界面布局 //tips：JPanel 是 Java图形用户界面(GUI)工具包swing中的面板容器类 /** * 2048小游戏 * 游戏玩法：通过上下左右方向键移动图块，使得数字合出2048则获胜 */ public class Game2048 extends JPanel { //枚举：开始，获胜，正在进行游戏，游戏结束 enum State { start, won, running, over } final Color[] colorTable = { new Color(0x701710), new Color(0xFFE4C3), new Color(0xfff4d3), new Color(0xffdac3), new Color(0xe7b08e), new Color(0xe7bf8e), new Color(0xffc4c3), new Color(0xE7948e), new Color(0xbe7e56), new Color(0xbe5e56), new Color(0x9c3931), new Color(0x701710)}; final static int target = 2048;//游戏最终目标 static int higheNum;//最高数 static int score; private Color gridColor = new Color(0xBBADA0);//网格颜色 private Color emptyColor = new Color(0xCDC1B4);//没有图块的格子的颜色 private Color startColor = new Color(0xFFEBCD);//开始界面框的颜色 private Random rand = new Random(); private Tile[][] tiles; private int side = 4; private State gamestate = State.start; private boolean checkingAvailableMoves; public Game2048() { setPreferredSize(new Dimension(900, 700)); setBackground(new Color(0xFAF8EF)); setFont(new Font("SansSerif", Font.BOLD, 48)); setFocusable(true); addMouseListener(new MouseAdapter() { @Override public void mousePressed(MouseEvent e) { startGame(); repaint(); } }); addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { switch (e.getKeyCode()) { case KeyEvent.VK_UP: moveUp(); break; case KeyEvent.VK_DOWN: moveDown(); break; case KeyEvent.VK_LEFT: moveLeft(); break; case KeyEvent.VK_RIGHT: moveRight(); break; } repaint(); } }); } //复写JPanel里面的paintComponent方法，创建一个我们自己想要的界面 @Override public void paintComponent(Graphics gg) { super.paintComponent(gg); Graphics2D g = (Graphics2D) gg; g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); drawGrid(g); } //开始游戏 void startGame() { if (gamestate != State.running) { score = 0; higheNum = 0; gamestate = State.running; tiles = new Tile[side][side]; //执行两次，生成两个随机数 addRandomTile(); addRandomTile(); } } //生成框及里面内容 void drawGrid(Graphics2D g) { g.setColor(gridColor); g.fillRoundRect(200, 100, 499, 499, 15, 15); if (gamestate == State.running) { for (int r = 0; r < side; r++) { for (int c = 0; c < side; c++) { if (tiles[r][c] == null) { g.setColor(emptyColor); g.fillRoundRect(215 + c * 121, 115 + r * 121, 106, 106, 7, 7); } else { drawTile(g, r, c); } } } } else { g.setColor(startColor); g.fillRoundRect(215, 115, 469, 469, 7, 7); g.setColor(gridColor.darker());//设置一个比当前颜色深一级的Color g.setFont(new Font("SansSerif", Font.BOLD, 128)); g.drawString("2048", 310, 270); g.setFont(new Font("SansSerif", Font.BOLD, 20)); if (gamestate == State.won) { g.drawString("恭喜你，你成功得到2048!!", 330, 350); } else if (gamestate == State.over) g.drawString("你失败了,请重新开始游戏", 330, 350); g.setColor(gridColor); g.drawString("开始游戏", 390, 470); g.drawString("tips：使用上下左右箭头移动图块", 310, 530); } } void drawTile(Graphics2D g, int r, int c) { int value = tiles[r][c].getValue(); g.setColor(colorTable[(int) (Math.log(value) / Math.log(2)) + 1]); g.fillRoundRect(215 + c * 121, 115 + r * 121, 106, 106, 7, 7); String s = String.valueOf(value); g.setColor(value < 128 ? colorTable[0] : colorTable[1]); FontMetrics fm = g.getFontMetrics(); int asc = fm.getAscent(); int dec = fm.getDescent(); int x = 215 + c * 121 + (106 - fm.stringWidth(s)) / 2; int y = 115 + r * 121 + (asc + (106 - (asc + dec)) / 2); g.drawString(s, x, y); } private void addRandomTile() { int pos = rand.nextInt(side * side); int row, col; do { pos = (pos + 1) % (side * side); row = pos / side; col = pos % side; } while (tiles[row][col] != null); int val = rand.nextInt(10) == 0 ? 4 : 2; tiles[row][col] = new Tile(val); } private boolean move(int countDownFrom, int yIncr, int xIncr) { boolean moved = false; for (int i = 0; i < side * side; i++) { int j = Math.abs(countDownFrom - i); int r = j / side; int c = j % side; if (tiles[r][c] == null) continue; int nextR = r + yIncr; int nextC = c + xIncr; while (nextR >= 0 && nextR < side && nextC >= 0 && nextC < side) { Tile next = tiles[nextR][nextC]; Tile curr = tiles[r][c]; if (next == null) { if (checkingAvailableMoves) return true; tiles[nextR][nextC] = curr; tiles[r][c] = null; r = nextR; c = nextC; nextR += yIncr; nextC += xIncr; moved = true; } else if (next.canMergeWith(curr)) { if (checkingAvailableMoves) return true; int value = nexrgeWith(curr); if (value > higheNum) higheNum = value; score += value; tiles[r][c] = null; moved = true; break; } else break; } } if (moved) { if (higheNum < target) { clearMerged(); addRandomTile(); if (!movesAvailable()) {//如果不能再移动图块，则则把游戏状态变成游戏失败 gamestate = State.over; } } else if (higheNum == target)//如果最高数=2048，则把游戏状态变成游戏成功 gamestate = State.won; } return moved; } boolean moveUp() { return move(0, -1, 0); } boolean moveDown() { return move(side * side - 1, 1, 0); } boolean moveLeft() { return move(0, 0, -1); } boolean moveRight() { return move(side * side - 1, 0, 1); } void clearMerged() { for (Tile[] row : tiles) for (Tile tile : row) if (tile != null) tile.setMerged(false); } //判断是否还能继续移动图块 boolean movesAvailable() { checkingAvailableMoves = true; boolean hasMoves = moveUp() || moveDown() || moveLeft() || moveRight(); checkingAvailableMoves = false; return hasMoves; } public static void main(String[] args) { SwingUtilities.invokeLater(() -> { JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setTitle("2048小游戏"); f.setResizable(true); f.add(new Game2048(), BorderLayout.CENTER); f.pack(); f.setLocationRelativeTo(null); f.setVisible(true); }); } } class Tile { private boolean merged; private int value; Tile(int val) { value = val; } boolean canMergeWith(Tile other) { return !merged && other != null && !other.merged && value == other.getValue(); } int mergeWith(Tile other) { if (canMergeWith(other)) { value *= 2; merged = true; return value; } return -1; } //set get int getValue() { return value; } void setMerged(boolean m) { merged = m; } }运行结果1.开始界面 |
2.游戏界面
3.失败后界面
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