贪吃蛇程序:
GreedSnake.java (也是程序入口):
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Iterator;
import java.util.linkedList;
import javax.swing.Jframe;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class GreedSnake implements KeyListener {
Jframe mainframe;
Canvas paintCanvas;
JLabel labelScore;// 计分牌
SnakeModel snakeModel = null;// 蛇
public static final int canvasWidth = 200;
public static final int canvasHeight = 300;
public static final int nodeWidth = 10;
public static final int nodeHeight = 10;
// ----------------------------------------------------------------------
// GreedSnake():初始化游戏界面
// ----------------------------------------------------------------------
public GreedSnake() {
// 设置界面元素
mainframe = new Jframe("GreedSnake");
Container cp = mainframe.getContentPane();
labelScore = new JLabel("Score:");
cp.add(labelScore, BorderLayout.NORTH);
paintCanvas = new Canvas();
paintCanvas.setSize(canvasWidth + 1, canvasHeight + 1);
paintCanvas.addKeyListener(this);
cp.add(paintCanvas, BorderLayout.CENTER);
JPanel panelButtom = new JPanel();
panelButtom.setLayout(new BorderLayout());
JLabel labelHelp;// 帮助信息
labelHelp = new JLabel("PageUp, PageDown for speed;", JLabel.CENTER);
panelButtom.add(labelHelp, BorderLayout.NORTH);
labelHelp = new JLabel("ENTER or R or S for start;", JLabel.CENTER);
panelButtom.add(labelHelp, BorderLayout.CENTER);
labelHelp = new JLabel("SPACE or P for pause", JLabel.CENTER);
panelButtom.add(labelHelp, BorderLayout.SOUTH);
cp.add(panelButtom, BorderLayout.SOUTH);
mainframe.addKeyListener(this);
mainframe.pack();
mainframe.setResizable(false);
mainframe.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE);
mainframe.setVisible(true);
begin();
}
// ----------------------------------------------------------------------
// keyPressed():按键检测
// ----------------------------------------------------------------------
public void keyPressed(KeyEvent e) {
int keyCode = e.getKeyCode();
if (snakeModel.running)
switch (keyCode) {
case KeyEvent.VK_UP:
snakeModel.changeDirection(SnakeModel.UP);
break;
case KeyEvent.VK_DOWN:
snakeModel.changeDirection(SnakeModel.DOWN);
break;
case KeyEvent.VK_LEFT:
snakeModel.changeDirection(SnakeModel.LEFT);
break;
case KeyEvent.VK_RIGHT:
snakeModel.changeDirection(SnakeModel.RIGHT);
break;
case KeyEvent.VK_ADD:
case KeyEvent.VK_PAGE_UP:
snakeModel.speedUp();// 加速
break;
case KeyEvent.VK_SUBTRACT:
case KeyEvent.VK_PAGE_DOWN:
snakeModel.speedDown();// 减速
break;
case KeyEvent.VK_SPACE:
case KeyEvent.VK_P:
snakeModel.changePauseState();// 暂停或继续
break;
default:
}
// 重新开始
if (keyCode == KeyEvent.VK_R || keyCode == KeyEvent.VK_S
|| keyCode == KeyEvent.VK_ENTER) {
snakeModel.running = false;
begin();
}
}
// ----------------------------------------------------------------------
// keyReleased（）：空函数
// ----------------------------------------------------------------------
public void keyReleased(KeyEvent e) {
}
// ----------------------------------------------------------------------
// keyTyped（）：空函数
// ----------------------------------------------------------------------
public void keyTyped(KeyEvent e) {
}
// ----------------------------------------------------------------------
// repaint（）：绘制游戏界面（包括蛇和食物）
// ----------------------------------------------------------------------
void repaint() {
Graphics g = paintCanvas.getGraphics();
// draw background
g.setColor(Color.WHITE);
g.fillRect(0, 0, canvasWidth, canvasHeight);
// draw the snake
g.setColor(Color.BLACK);
linkedList na = snakeModel.nodeArray;
Iterator it = na.iterator();
while (it.hasNext()) {
Node n = (Node) it.next();
drawNode(g, n);
}
// draw the food
g.setColor(Color.RED);
Node n = snakeModel.food;
drawNode(g, n);
updateScore();
}
// ----------------------------------------------------------------------
// drawNode（）：绘画某一结点（蛇身或食物）
// ----------------------------------------------------------------------
private void drawNode(Graphics g, Node n) {
g.fillRect(n.x * nodeWidth, n.y * nodeHeight, nodeWidth - 1,
nodeHeight - 1);
}
// ----------------------------------------------------------------------
// updateScore（）：改变计分牌
// ----------------------------------------------------------------------
public void updateScore() {
String s = "Score: " + snakeModel.score;
labelScore.setText(s);
}
// ----------------------------------------------------------------------
// begin（）：游戏开始，放置贪吃蛇
// ----------------------------------------------------------------------
void begin() {
if (snakeModel == null || !snakeModel.running) {
snakeModel = new SnakeModel(this, canvasWidth / nodeWidth,
this.canvasHeight / nodeHeight);
(new Thread(snakeModel)).start();
}
}
// ----------------------------------------------------------------------
// main（）：主函数
// ----------------------------------------------------------------------
public static void main(String[] args) {
GreedSnake gs = new GreedSnake();
}
}
Node.java:
public class Node {
int x;
int y;
Node(int x, int y) {
this.x = x;
this.y = y;
}
}
SnakeModel.java:
import java.util.Arrays;
import java.util.linkedList;
import java.util.Random;
import javax.swing.JOptionPane;
public class SnakeModel implements Runnable {
GreedSnake gs;
boolean[][] matrix;// 界面数据保存在数组里
linkedList nodeArray = new linkedList();
Node food;
int maxX;// 最大宽度
int maxY;// 最大长度
int direction = 2;// 方向
boolean running = false;
int timeInterval = 200;// 间隔时间（速度）
double speedChangeRate = 0.75;// 速度改变程度
boolean paused = false;// 游戏状态
int score = 0;
int countMove = 0;
// UP和DOWN是偶数，RIGHT和LEFT是奇数
public static final int UP = 2;
public static final int DOWN = 4;
public static final int LEFT = 1;
public static final int RIGHT = 3;
// ----------------------------------------------------------------------
// GreedModel():初始化界面
// ----------------------------------------------------------------------
public SnakeModel(GreedSnake gs, int maxX, int maxY) {
this.gs = gs;
this.maxX = maxX;
this.maxY = maxY;
matrix = new boolean[maxX][];
for (int i = 0; i < maxX; ++i) {
matrix[i] = new boolean[maxY];
Arrays.fill(matrix[i], false);// 没有蛇和食物的地区置false
}
// 初始化贪吃蛇
int initArrayLength = maxX > 20 ? 10 : maxX / 2;
for (int i = 0; i < initArrayLength; ++i) {
int x = maxX / 2 + i;
int y = maxY / 2;
nodeArray.addLast(new Node(x, y));
matrix[x][y] = true;// 蛇身处置true
}
food = createFood();
matrix[food.x][food.y] = true;// 食物处置true
}
// ----------------------------------------------------------------------
// changeDirection():改变运动方向
// ----------------------------------------------------------------------
public void changeDirection(int newDirection) {
if (direction % 2 != newDirection % 2)// 避免冲突
{
direction = newDirection;
}
}
// ----------------------------------------------------------------------
// moveOn():贪吃蛇运动函数
// ----------------------------------------------------------------------
public boolean moveOn() {
Node n = (Node) nodeArray.getFirst();
int x = n.x;
int y = n.y;
switch (direction) {
case UP:
y--;
break;
case DOWN:
y++;
break;
case LEFT:
x--;
break;
case RIGHT:
x++;
break;
}
if ((0 <= x && x < maxX) && (0 <= y && y < maxY)) {
if (matrix[x][y])// 吃到食物或者撞到身体
{
if (x == food.x && y == food.y)// 吃到食物
{
nodeArray.addFirst(food);// 在头部加上一结点
// 计分规则与移动长度和速度有关
int scoreGet = (10000 - 200 * countMove) / timeInterval;
score += scoreGet > 0 ? scoreGet : 10;
countMove = 0;
food = createFood();
matrix[food.x][food.y] = true;
return true;
} else
return false;// 撞到身体
} else// 什么都没有碰到
{
nodeArray.addFirst(new Node(x, y));// 加上头部
matrix[x][y] = true;
n = (Node) nodeArray.removeLast();// 去掉尾部
matrix[n.x][n.y] = false;
countMove++;
return true;
}
}
return false;// 越界（撞到墙壁）
}
// ----------------------------------------------------------------------
// run():贪吃蛇运动线程
// ----------------------------------------------------------------------
public void run() {
running = true;
while (running) {
try {
Thread.sleep(timeInterval);
} catch (Exception e) {
break;
}
if (!paused) {
if (moveOn())// 未结束
{
gs.repaint();
} else// 游戏结束
{
JOptionPane.showMessageDialog(null, "GAME OVER",
"Game Over", JOptionPane.INFORMATION_MESSAGE);
break;
}
}
}
running = false;
}
// ----------------------------------------------------------------------
// createFood():生成食物及放置地点
// ----------------------------------------------------------------------
private Node createFood() {
int x = 0;
int y = 0;
do {
Random r = new Random();
x = r.nextInt(maxX);
y = r.nextInt(maxY);
} while (matrix[x][y]);
return new Node(x, y);
}
// ----------------------------------------------------------------------
// speedUp():加快蛇运动速度
// ----------------------------------------------------------------------
public void speedUp() {
timeInterval *= speedChangeRate;
}
// ----------------------------------------------------------------------
// speedDown():放慢蛇运动速度
// ----------------------------------------------------------------------
public void speedDown() {
timeInterval /= speedChangeRate;
}
// ----------------------------------------------------------------------
// changePauseState(): 改变游戏状态（暂停或继续）
// ----------------------------------------------------------------------
public void changePauseState() {
paused = !paused;
}
}
package mybase.programe;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class LianLianKan implements ActionListener {
Jframe mainframe; // 主面板
Container thisContainer;
JPanel centerPanel, southPanel, northPanel; // 子面板
JButton diamondsButton[][] = new JButton[6][5];// 游戏按钮数组
JButton exitButton, resetButton, newlyButton; // 退出，重列，重新开始按钮
JLabel fractionLable = new JLabel("0"); // 分数标签
JButton firstButton, secondButton; // 分别记录两次被选中的按钮
// 储存游戏按钮位置(这里其实只要6行，5列。但是我们用了8行，7列。是等于在这个面板按钮的周围还围
//了一层是0的按钮,这样就可以实现靠近面板边缘的两个按钮可以消去)
int grid[][] = new int[8][7];
static boolean pressInformation = false; // 判断是否有按钮被选中
int x0 = 0, y0 = 0, x = 0, y = 0, fristMsg = 0, secondMsg = 0, validateLV; // 游戏按钮的位置坐标
int i, j, k, n;// 消除方法控制
public void init() {
mainframe = new Jframe("JKJ连连看");
thisContainer = mainframe.getContentPane();
thisContainer.setLayout(new BorderLayout());
centerPanel = new JPanel();
southPanel = new JPanel();
northPanel = new JPanel();
thisContainer.add(centerPanel, "Center");
thisContainer.add(southPanel, "South");
thisContainer.add(northPanel, "North");
centerPanel.setLayout(new GridLayout(6, 5));
for (int cols = 0; cols < 6; cols++) {
for (int rows = 0; rows < 5; rows++) {
diamondsButton[cols][rows] = new JButton(String
.valueOf(grid[cols + 1][rows + 1]));
diamondsButton[cols][rows].addActionListener(this);
centerPanel.add(diamondsButton[cols][rows]);
}
}
exitButton = new JButton("退出");
exitButton.addActionListener(this);
resetButton = new JButton("重列");
resetButton.addActionListener(this);
newlyButton = new JButton("再来一局");
newlyButton.addActionListener(this);
southPanel.add(exitButton);
southPanel.add(resetButton);
southPanel.add(newlyButton);
fractionLable.setText(String.valueOf(Integer.parseInt(fractionLable
.getText())));
northPanel.add(fractionLable);
mainframe.setBounds(280, 100, 500, 450);
mainframe.setVisible(true);
mainframe.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE);
}
public void randomBuild() {
int randoms, cols, rows;
for (int twins = 1; twins <= 15; twins++) {//一共15对button,30个
randoms = (int) (Math.random() * 25 + 1);//button上的数字
for (int alike = 1; alike <= 2; alike++) {
cols = (int) (Math.random() * 6 + 1);
rows = (int) (Math.random() * 5 + 1);
while (grid[cols][rows] != 0) {//等于0说明这个空格有了button
cols = (int) (Math.random() * 6 + 1);
rows = (int) (Math.random() * 5 + 1);
}
this.grid[cols][rows] = randoms;
}
}
}
public void fraction() {
fractionLable.setText(String.valueOf(Integer.parseInt(fractionLable
.getText()) + 100));
}
public void reload() {
int save[] = new int[30];
int n = 0, cols, rows;
int grid[][] = new int[8][7];
for (int i = 0; i <= 6; i++) {
for (int j = 0; j <= 5; j++) {
if (this.grid[i][j] != 0) {
save[n] = this.grid[i][j];//记下每个button的数字
n++;//有几个没有消去的button
}
}
}
n = n - 1;
this.grid = grid;
while (n >= 0) {//把没有消去的button重新放一次
cols = (int) (Math.random() * 6 + 1);
rows = (int) (Math.random() * 5 + 1);
while (grid[cols][rows] != 0) {
cols = (int) (Math.random() * 6 + 1);
rows = (int) (Math.random() * 5 + 1);
}
this.grid[cols][rows] = save[n];
n--;
}
mainframe.setVisible(false);
pressInformation = false; // 这里一定要将按钮点击信息归为初始
init();
for (int i = 0; i < 6; i++) {
for (int j = 0; j < 5; j++) {
if (grid[i + 1][j + 1] == 0)
diamondsButton[i][j].setVisible(false);
}
}
}
public void estimateEven(int placeX, int placeY, JButton bz) {
if (pressInformation == false) {
x = placeX;
y = placeY;
secondMsg = grid[x][y];
secondButton = bz;
pressInformation = true;
} else {
x0 = x;
y0 = y;
fristMsg = secondMsg;
firstButton = secondButton;
x = placeX;
y = placeY;
secondMsg = grid[x][y];
secondButton = bz;
if (fristMsg == secondMsg && secondButton != firstButton) {
xiao();
}
}
}
public void xiao() { // 相同的情况下能不能消去。仔细分析，不一条条注释
if ((x0 == x && (y0 == y + 1 || y0 == y - 1))
|| ((x0 == x + 1 || x0 == x - 1) && (y0 == y))) { // 判断是否相邻
remove();
} else {
for (j = 0; j < 7; j++) {
if (grid[x0][j] == 0) { // 判断和第一个按钮同行的哪个按钮为空
//如果找到一个为空的，就按列值的三种情况比较第二个按钮与空按钮的位置
if (y > j) {//第二个按钮在空按钮右边
for (i = y - 1; i >= j; i--) { //检测从第二个按钮横向左边到空格所在列为止是否全是空格
if (grid[x][i] != 0) {
k = 0;
break;//存在非空格的就退出，这一退出就不可能k==2了，所以就会到下而215行出同理的判断列
} else {
k = 1;
} // K=1说明全是空格通过了第一次验证，也就是从第二个按钮横向左边到空格所在列为止全是空格
}
if (k == 1) {
linePassOne();//进入第二次验证，也就是从第一个按钮到它同行的空格之间的空格判断
}
}
if (y < j) { // 第二个按钮在空按钮左边
for (i = y + 1; i <= j; i++) {//检测从第二个按钮横向右边到空格所在列为止是否全是空格
if (grid[x][i] != 0) {
k = 0;
break;
} else {
k = 1;
}
}
if (k == 1) {
linePassOne();
}
}
if (y == j) {//第二个按钮和空按钮同列
linePassOne();
}
}
//第三次检测，检测确定为空的第j列的那个按钮竖向到第二个按钮，看是不是有按钮
if (k == 2) {
if (x0 == x) {//第一，二按钮在同行
remove();
}
if (x0 < x) {//第一按钮在第二按钮下边
for (n = x0; n <= x - 1; n++) {//从空按钮竖向到第二个按钮所在行是否有按钮
if (grid[n][j] != 0) {
k = 0;
break;
}
//没有按钮，说明这条路经就通了
if (grid[n][j] == 0 && n == x - 1) {
remove();
}
}
}
if (x0 > x) {//第一按钮在第二按钮上边
for (n = x0; n >= x + 1; n--) {
if (grid[n][j] != 0) {
k = 0;
break;
}
if (grid[n][j] == 0 && n == x + 1) {
remove();
}
}
}
}
}//-------------------------------------for
//当上面的检测与第一个按钮同行的空格按钮失败后(不能找到与第二个按钮的相连路经)，下面就执行
//检测与第一个按钮同列的空格按钮
for (i = 0; i < 8; i++) {
if (grid[i][y0] == 0) {// 判断和第一个按钮同列的哪个按钮为空
if (x > i) {//第二个按钮在这个空按钮的下面
for (j = x - 1; j >= i; j--) {
if (grid[j][y] != 0) {
k = 0;
break;
} else {
k = 1;
}
}
if (k == 1) {
rowPassOne();
}
}
if (x < i) {//第二个按钮在这个空按钮的上面
for (j = x + 1; j <= i; j++) {
if (grid[j][y] != 0) {
k = 0;
break;
} else {
k = 1;
}
}
if (k == 1) {
rowPassOne();
}
}
if (x == i) {//第二个按钮与这个空按钮同行
rowPassOne();
}
}
if (k == 2) {
if (y0 == y) {//第二个按钮与第一个按钮同列
remove();
}
if (y0 < y) {//第二个按钮在第一个按钮右边
for (n = y0; n <= y - 1; n++) {
if (grid[i][n] != 0) {
k = 0;
break;
}
if (grid[i][n] == 0 && n == y - 1) {
remove();
}
}
}
if (y0 > y) {//第二个按钮在第一个按钮左边
for (n = y0; n >= y + 1; n--) {
if (grid[i][n] != 0) {
k = 0;
break;
}
if (grid[i][n] == 0 && n == y + 1) {
remove();
}
}
}
}
}//--------------------------------for
}//-------------else
}//------------xiao
public void linePassOne() {
if (y0 > j) { // 第一按钮同行空按钮在左边
for (i = y0 - 1; i >= j; i--) { // 判断第一按钮同左侧空按钮之间有没按钮
if (grid[x0][i] != 0) {
k = 0;
break;
} else {
k = 2;
} // K=2说明通过了第二次验证
}
}
if (y0 < j) { // 第一按钮同行空按钮在右边
for (i = y0 + 1; i <= j; i++) {
if (grid[x0][i] != 0) {
k = 0;
break;
} else {
k = 2;
}
}
}
}
public void rowPassOne() {
if (x0 > i) {//第一个按钮在与它同列的那个空格按钮下面
for (j = x0 - 1; j >= i; j--) {
if (grid[j][y0] != 0) {
k = 0;
break;
} else {
k = 2;
}
}
}
if (x0 < i) {//第一个按钮在与它同列的那个空格按钮上面
for (j = x0 + 1; j <= i; j++) {
if (grid[j][y0] != 0) {
k = 0;
break;
} else {
k = 2;
}
}
}
}
public void remove() {
firstButton.setVisible(false);
secondButton.setVisible(false);
fraction();
pressInformation = false;
k = 0;
grid[x0][y0] = 0;
grid[x][y] = 0;
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == newlyButton) {
int grid[][] = new int[8][7];
this.grid = grid;
randomBuild();
mainframe.setVisible(false);
pressInformation = false;
init();
}
if (e.getSource() == exitButton)
System.exit(0);
if (e.getSource() == resetButton)
reload();
for (int cols = 0; cols < 6; cols++) {
for (int rows = 0; rows < 5; rows++) {
if (e.getSource() == diamondsButton[cols][rows])
estimateEven(cols + 1, rows + 1, diamondsButton[cols][rows]);
}
}
}
public static void main(String[] args) {
LianLianKan llk = new LianLianKan();
llk.randomBuild();
llk.init();
}
}
