JAVA_snake.rar_Snake!_贪吃蛇java

/** * @(#)Snake.java * * * @author * @version 1.00 2008/12/12 */ import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.*; public class Snake { GamePanel panel; Node food; int mark=0; boolean[][] all; public static boolean run; int maxX; int maxY; public static int left = 1; public static int up = 2; public static int right = 3; public static int down = 4; int direction = 4; LinkedList snakeList = new LinkedList(); public Snake(GamePanel p, int maxX, int maxY) { panel = p; this.maxX = maxX; this.maxY = maxY; all = new boolean[maxX][maxY]; for (int i = 0; i < maxX; i++) { for (int j = 0; j < maxY; j++) { all[i][j] = false; } } int arrayLength = maxX > 20 ? 10 : maxX / 2; for (int i = 0; i < arrayLength; i++) { int x = maxX / 10 + i; int y = maxY / 10; snakeList.addFirst(new Node(x, y)); all[x][y] = true; } food = createFood(); all[food.x][food.y] = true; } // 蛇移动的方法 public void move() { Node n = (Node) snakeList.getFirst(); int x = n.x; int y = n.y; if (direction == 3) { x++; } else if (direction == 4) { y++; } else if (direction == 1) { x--; } else if (direction == 2) { y--; } // 实现对蛇撞到自身的检测 if ((x>=0 && x <= GamePanel.panelWidth / 15 - 1) && (0 <= y && y <= GamePanel.panelHeight / 15 - 1)) { if (all[x][y]) { if (x == food.x && y == food.y) { mark++; MarkPanel.markLabel.setText("分数为:"+mark); snakeList.addFirst(food); food = createFood(); all[food.x][food.y] = true; } else { JOptionPane.showMessageDialog(null, "你撞到自己了"); System.exit(0); } } else { snakeList.addFirst(new Node(x, y)); all[x][y] = true; Node l = (Node) snakeList.getLast(); snakeList.removeLast(); all[l.x][l.y] = false; } } else { JOptionPane.showMessageDialog(null, "越界了,游戏结束"); System.exit(0); } panel.repaint(); } public Node createFood() { int x = 0; int y = 0; do { Random r = new Random(); x = r.nextInt(maxX); y = r.nextInt(maxY); } while (all[x][y]); return new Node(x, y); } //设置蛇不能回头 public void changeDirection(int newDirection) { if (direction % 2 != newDirection % 2) { direction = newDirection; } } public void drawMap(Graphics2D g) { for (int i = 0; i < maxX; i++) { for (int j = 0; j < maxY; j++) { if (all[i][j] == true) { g.setColor(Color.red); g.fillRect(i, j, 4, 4); } } } } }