贪吃蛇小游戏

package 贪吃蛇; import java.awt.Color; import java.awt.Font; import java.awt.GradientPaint; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Point; import java.awt.RenderingHints; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.font.TextAttribute; import java.awt.geom.Point2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.text.AttributedString; import java.util.ArrayList; import javax.imageio.ImageIO; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JProgressBar; import javax.swing.JSlider; import javax.swing.border.LineBorder; public class Snake extends JFrame implements KeyListener, Runnable { /** * */ public Snake(int rows, int cols) { super("XnakeS"); load = new loadframe(); setROWS(rows); setCOLS(cols); setUndecorated(true); setIconImage(logo); setDefaultCloseOperation(EXIT_ON_CLOSE); setAlwaysOnTop(true); setResizable(false); initXnakes(); addKeyListener(this); setSize(ROWS * BLOCK, COLS * BLOCK); setLocationRelativeTo(rootPane); } @Override public void paint(Graphics g) { int nake = eggcnt % xnake.length; bImage = createImage(ROWS * BLOCK, COLS * BLOCK); bGraphics = (Graphics2D) bImage.getGraphics(); bGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); // 画背景图片 bGraphics.setPaint(new GradientPaint(new Point2D.Float(0, 0), snakeColor[nake], new Point2D.Float(getWidth(), getHeight()), Color.black)); bGraphics.fillRect(0, 0, getWidth(), getHeight()); // 画蛇图片800*600区域 bGraphics.drawImage(xnake[nake], (getWidth() - xnake[nake].getWidth()) / 2, (getHeight() - xnake[nake].getHeight()) / 2, null); String scoresStrin = new String("Score: " + eggcnt);// 画当前分数 AttributedString scoreString = new AttributedString(scoresStrin); scoreString.addAttribute(TextAttribute.FONT, scoreFont); scoreString.addAttribute(TextAttribute.FONT, numberfont, 7, scoresStrin.length()); scoreString.addAttribute(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON, 7, scoresStrin.length()); scoreString.addAttribute(TextAttribute.FOREGROUND, Color.red, 7, scoresStrin.length()); scoreString.addAttribute(TextAttribute.FOREGROUND, Color.gray, 0, 7); bGraphics.drawString(scoreString.getIterator(), 750, 100); bGraphics.drawImage(egg, eggPoint.x * BLOCK, eggPoint.y * BLOCK, BLOCK, BLOCK, null); int naks = xnakes.size() - 1;// 画蛇身 bGraphics.drawImage(head, xnakes.get(naks).x * BLOCK, xnakes.get(naks).y * BLOCK, BLOCK, BLOCK, null); while (0 < (naks--)) { bGraphics.drawImage(egg, xnakes.get(naks).x * BLOCK, xnakes.get(naks).y * BLOCK, BLOCK, BLOCK, null); } g.drawImage(bImage, 0, 0, rootPane); }; static Snake snake = new Snake(64, 36); public static void main(String[] args) { mainThreak = new Thread(snake); } static Thread mainThreak; @Override public void run() { try { while (true) { Thread.sleep(difficulty); creep(); repaint(); } } catch (InterruptedException e) { e.printStackTrace(); } } private void initXnakes() { xnakes = new ArrayList<Point>(20); moveDirection = Right; setEgg(); setEggcnt(0); xnakes.add(new Point(5, COLS / 3)); xnakes.add(new Point(6, COLS / 3)); xnakes.add(new Point(7, COLS / 3)); } public void setEgg() { Point eggPoint = new Point((int) Math.ceil(Math.random() * ROWS - 1), (int) Math.ceil(Math.random() * COLS - 1)); while (xnakes.contains(eggPoint)) { eggPoint = new Point((int) Math.ceil(Math.random() * ROWS - 1), (int) Math.ceil(Math.random() * COLS - 1)); } setEggPoint(eggPoint); } private void creep() { switch (moveDirection) {// 根据移动方向添加一个点 case Left: xnakes.add(new Point( (xnakes.get(xnakes.size() - 1).x - 1) < 0 ? ROWS - 1 : (xnakes.get(xnakes.size() - 1).x - 1), xnakes .get(xnakes.size() - 1).y));// 添加一个蛇头左边的点 break; case Right: xnakes.add(new Point((xnakes.get(xnakes.size() - 1).x + 1) % ROWS, xnakes.get(xnakes.size() - 1).y));// 添加一个蛇头右边的点 break; case Up: xnakes.add(new Point(xnakes.get(xnakes.size() - 1).x, (xnakes .get(xnakes.size() - 1).y - 1) < 0 ? COLS - 1 : (xnakes .get(xnakes.size() - 1).y - 1)));// 添加一个蛇头上边的点 break; case Down: xnakes.add(new Point(xnakes.get(xnakes.size() - 1).x, (xnakes .get(xnakes.size() - 1).y + 1) % COLS));// 添加一个蛇头下边的点 break; default: break; } if (xnakes.contains(eggPoint)) { setEgg(); eggcnt++; repaint(); return; } if (xnakes.subList(0, xnakes.size() - 2).contains( xnakes.get(xnakes.size() - 1))) { if (0 == JOptionPane.showConfirmDialog(rootPane, " Try again?", "You eat yourself~", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE)) { initXnakes(); return; } else { System.exit(0); } } xnakes.remove(0);// 删除尾部的点 repaint(); } class loadframe extends JFrame implements Runnable, ActionListener { /** * */ private static final long serialVersionUID = 1L; public loadframe() { super("Loading......"); setSize(500, 450); setResizable(false); setLocationRelativeTo(null); setLayout(null); setDefaultCloseOperation(EXIT_ON_CLOSE); imgJLabel = new JLabel(new ImageIcon("img/贪吃蛇/loading.gif")); imgJLabel.setBounds(0, 0, 500, 400); loadBar.setBounds(0, 399, 500, 40); loadBar.setForeground(Color.black); loadBar.setBorder(new LineBorder(Color.black, 1, true)); getContentPane().add(imgJLabel); getContentPane().add(loadBar); setVisible(true); run(); } JLabel imgJLabel; JSlider diffSlider; public void stopLoad() { setTitle("选择游戏难度"); getContentPane().remove(loadBar); getContentPane().remove(imgJLabel); repaint(); diffSlider = new JSlider(1, 8, 4); diffSlider.setBounds(100, 200, 300, 50); diffSlider.setName("设置难度"); diffSlider.setPaintLabels(true); diffSlider.setMajorTickSpacing(1); diffSlider.setPaintTicks(true); diffSlider.setSnapToTicks(true); getContentPane().add(diffSlider); JButton setButton = new JButton("开始游戏"); setButton.setFocusPainted(false); setButton.setBounds(150, 270, 200, 90); setButton.addActionListener(this); getContentPane().add(setButton); repaint(); } int imgcnt = 0; JProgressBar loadBar = new JProgressBar(0, xnake.length); @Override public void run() { try { int red = 0, blue = 0, green = 0; for (int i = 1; i <= xnake.length; i++) { File snaFile = new File("img/贪吃蛇/xnak (" + i + ").jpg"); xnake[i - 1] = ImageIO.read(snaFile); // 获取蛇的图像 // _______________________________________________________________ // System.out.print((i) + "Read over"); int width = 800, heigh = 600; if (xnake[i - 1].getWidth() > xnake[i - 1].getHeight()) { if (xnake[i - 1].getWidth() >= 800) { width = 800; heigh = xnake[i - 1].getHeight() * 800 / xnake[i - 1].getWidth(); } else { width = xnake[i - 1].getWidth(); heigh = xnake[i - 1].getHeight(); } } else { if (xnake[i - 1].getHeight() > 600) { heigh = 600; width = xnake[i - 1].getWidth() * 600 / xnake[i - 1].getHeight(); } else { width = xnake[i - 1].getWidth(); heigh = xnake[i - 1].getHeight(); } } BufferedImage tBufferedImage = new BufferedImage(width, heigh, BufferedImage.TYPE_INT_RGB); Graphics aGraphics = tBufferedImage.getGraphics(); aGraphics.drawImage(xnake[i - 1], 0, 0, width, heigh, null); xnake[i - 1] = tBufferedImage; // _______________________________________________________________ // System.out.print(" convert over"); int scansize = 200; int[] data = new int[width * (heigh - scansize)]; xnake[i - 1].getRGB(0, 0, width, heigh, data, 0, scansize); for (int j = 0; j < data.length; j++) { red += (data[j] & 0x00ff0000) >> 16; green += (data[j] & 0x0000ff00) >> 8; blue += (data[j] & 0x000000ff); } int n = data.length; red = (red / n); green = (green / n); blue = (blue / n); snakeColor[i - 1] = new Color(red, green, blue); snakeColor[i - 1] = snakeColor[i - 1].brighter(); loadBar.setValue(i); } stopLoad(); } catch (IOException e) { e.printStackTrace(); } } @SuppressWarnings("deprecation") @Override public void actionPerformed(ActionEvent e) { setDifficulty(diffSlider.getValue() * 50); setVisible(false); snake.setVisible(true); if (!mainThreak.isAlive()) mainThreak.start(); mainThreak.resume(); } } int times = 0; @Override public void keyPressed(KeyEvent e) { int Direction = 0; switch (e.getKeyCode()) { case KeyEvent.VK_UP: Direction = Up; break; case KeyEvent.VK_DOWN: Direction = Down; break; case KeyEvent.VK_LEFT: Direction = Left; break; case KeyEvent.VK_RIGHT: Direction = Right; break; default: break; } switch (Direction) {// 根据移动方向添加一个点 case Left: if (xnakes.get(xnakes.size() - 2).x + 1 == xnakes .get(xnakes.size() - 1).x || xnakes.get(xnakes.size() - 2).x == ROWS - 1 && xnakes.get(xnakes.size() - 1).x == 0) {// 如果蛇头跟蛇脖子挡住了移动方向,返回 return; } else { setMoveDirection(Left); break; } case Right: if (xnakes.get(xnakes.size() - 2).x - 1 == xnakes .get(xnakes.size() - 1).x || xnakes.get(xnakes.size() - 2).x == 0 && xnakes.get(xnakes.size() - 1).x == ROWS - 1) {// 如果蛇头跟蛇脖子挡住了移动方向,返回 return; } else { setMoveDirection(Right); break; } case Up: if (xnakes.get(xnakes.size() - 2).y + 1 == xnakes .get(xnakes.size() - 1).y || xnakes.get(xnakes.size() - 2).y == COLS - 1 && xnakes.get(xnakes.size() - 1).y == 0) {// 如果蛇头跟蛇脖子挡住了移动方向,返回 return; } else { setMoveDirection(Up); break; } case Down: if (xnakes.get(xnakes.size() - 2).y - 1 == xnakes .get(xnakes.size() - 1).y || xnakes.get(xnakes.size() - 2).y == 0 && xnakes.get(xnakes.size() - 1).y == COLS - 1) {// 如果蛇头跟蛇脖子挡住了移动方向,返回 return; } else { setMoveDirection(Down); break; } default: break; } times++; if (times > 10) { difficulty = 40; } } @SuppressWarnings("deprecation") @Override public void keyReleased(KeyEvent e) { if (e.getKeyCode() == 32) { mainThreak.suspend(); } else if (e.getKeyCode() == 27) { mainThreak.suspend(); snake.setVisible(false); load.setVisible(true); } else { mainThreak.resume(); } difficulty = oridifficulty; times = 0; } int oridifficulty; @Override public void keyTyped(KeyEvent e) { } public static void setbGraphics(Graphics2D bGraphics) { Snake.bGraphics = bGraphics; } public static Graphics2D getbGraphics() { return bGraphics; } public static void setbImage(Image bImage) { Snake.bImage = bImage; } public static Image getbImage() { return bImage; } public static int getROWS() { return ROWS; } public static void setROWS(int rOWS) { ROWS = rOWS; } public static int getCOLS() { return COLS; } public static void setCOLS(int cOLS) { COLS = cOLS; } public static int getBLOCK() { return BLOCK; } public static void setBLOCK(int bLOCK) { BLOCK = bLOCK; } public int getMoveDirection() { return moveDirection; } public void setMoveDirection(int moveDirection) { this.moveDirection = moveDirection; } public int getDifficulty() { return difficulty; } public void setDifficulty(int difficulty) { this.difficulty = difficulty; this.oridifficulty = difficulty; } public static void setXnakes(ArrayList<Point> xnakes) { Snake.xnakes = xnakes; } public static ArrayList<Point> getXnakes() { return xnakes; } public static Point getEggPoint() { return eggPoint; } public static void setEggPoint(Point eggPoint) { Snake.eggPoint = eggPoint; } public static void setEggcnt(int eggcnt) { Snake.eggcnt = eggcnt; } public static int getEggcnt() { return eggcnt; } private static final long serialVersionUID = 1L; private static int ROWS; private static int COLS; private static int BLOCK = 20; private static Image bImage; private static Graphics2D bGraphics; private final static int Up = 1, Down = 3, Left = 2, Right = 4; private static ArrayList<Point> xnakes; private static Point eggPoint; private static int eggcnt; static Toolkit tkToolkit = Toolkit.getDefaultToolkit(); Image background = tkToolkit.getImage("img/贪吃蛇/background.png"); Image head = tkToolkit.getImage("img/贪吃蛇/head.png"); Image egg = tkToolkit.getImage("img/贪吃蛇/egg.png"); Image logo = tkToolkit.getImage("img/贪吃蛇/logo_small.png"); BufferedImage[] xnake = new BufferedImage[23]; Color[] snakeColor = new Color[23]; int moveDirection = Down; int difficulty = 100; Font scoreFont = new Font("Jokerman", Font.BOLD, 80); Font numberfont = new Font("微软雅黑", Font.PLAIN, 60); JFrame loadFrame; loadframe load; }