Java版2048
用来练习java的小项目
"Talk is cheap, Show me the code."
import javax.swing.*;
import java.awt.event.*;
import java.security.Key;
import java.util.*;
import java.awt.*;
import javax.swing.*;
public class game2048 {
private static void createAndShowGUI() {
//创建窗体
JFrame f = new JFrame("2048");
JPanel jp = new JPanel();
jp.setLayout(new GridLayout(4,4,5,5));
f.add(jp);
f.setSize(600,600);
f.setLocation(400,300);
MainGame mainGame = new MainGame();
mainGame.iniGame();
//添加键盘监听事件
jp.setFocusable(true);
for(int i=0;i<4;i++){
for(int j=0;j<4;j++){
JButton but;
if(mainGame.mp[i][j] != 0){
but = new JButton(""+mainGame.mp[i][j]);
}
else{
but = new JButton("");
}
Font wordFont = new Font("宋体",Font.BOLD,25);
but.setFont(wordFont);
jp.add(but);
}
}
jp.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e){
int keyCode = e.getKeyCode();
//System.out.println(keyCode);
switch (keyCode){
case KeyEvent.VK_UP: mainGame.upUnion();break;
case KeyEvent.VK_DOWN: mainGame.downUnion();break;
case KeyEvent.VK_LEFT: mainGame.leftUnion();break;
case KeyEvent.VK_RIGHT: mainGame.rightUnion();break;
default:break;
}
if(mainGame.move) {
if (mainGame.nextOp()) {
jp.removeAll();
jp.repaint();
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
JButton but;
if (mainGame.mp[i][j] != 0) {
but = new JButton("" + mainGame.mp[i][j]);
} else {
but = new JButton("");
}
Font wordFont = new Font("宋体", Font.BOLD, 25);
but.setFont(wordFont);
jp.add(but);
}
}
jp.updateUI();
} else {
jp.removeAll();
jp.repaint();
JButton but = new JButton("游戏结束！最终得分：" + mainGame.finalScore);
Font wordFont = new Font("宋体", Font.BOLD, 25);
but.setFont(wordFont);
but.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
jp.add(but);
jp.updateUI();
}
}
}
});
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(game2048::createAndShowGUI);
}
}
class MainGame {
int[][] mp = new int[5][5];
int x,y;
int finalScore;
boolean move = false;
public MainGame() {
for(int i=0;i<4;i++){
for(int j=0;j<4;j++){
mp[i][j] = 0;
}
}
x = 0; y = 0;
}
public boolean getNext() {
boolean flag=false;
for(int i=0;i<4;i++){
for(int j=0;j<4;j++){
if(mp[i][j] == 0){
flag = true;
break;
}
}
if(flag) break;
}
if(!flag) return false;
Random rd = new Random();
int a, b;
while (true) {
a = rd.nextInt(4);
b = rd.nextInt(4);
if (this.mp[a][b] == 0) {
x = a;
y = b;
return true;
}
}
}
public int getVal() {
Random rd = new Random();
if(rd.nextInt(4) <= 2) {
return 2;
}
else {
return 4;
}
}
public boolean iniGame() {
if(getNext()){
mp[x][y] = 2;
}
else{
return false;
}
if(getNext()){
mp[x][y] = 2;
}
else{
return false;
}
return true;
}
public int downUnion() {
int score = 0;
//向下移动
for(int i=0;i<4;i++){
for(int j=2;j>=0;j--){
if(mp[j][i] != 0) {
int l = j;
while (l + 1 < 4 && mp[l + 1][i] == 0){
l++;
mp[l][i] = mp[l-1][i];
mp[l-1][i] = 0;
move = true;
}
}
}
}
//相邻同样元素合并
for(int i=0;i<4;i++){
for(int j=2;j>=0;j--){
if(mp[j+1][i] == mp[j][i] && mp[j+1][i] != 0){
score += mp[j][i];
mp[j+1][i] += mp[j][i];
mp[j][i] = 0;
move = true;
}
}
}
//向下移动
for(int i=0;i<4;i++){
for(int j=2;j>=0;j--){
if(mp[j][i] != 0) {
int l = j;
while (l + 1 < 4 && mp[l + 1][i] == 0){
l++;
mp[l][i] = mp[l-1][i];
mp[l-1][i] = 0;
move = true;
}
}
}
}
finalScore += score;
return score;
}
public int upUnion() {
int score = 0;
//移动
for(int i=0;i<4;i++){
for(int j=1;j<4;j++){
if(mp[j][i] != 0){
int l = j;
while(l-1>=0&&mp[l-1][i]==0){
l--;
mp[l][i] = mp[l+1][i];
mp[l+1][i] = 0;
move = true;
}
}
}
}
//合并
for(int i=0;i<4;i++){
for(int j=1;j<4;j++){
if(mp[j][i] == mp[j-1][i] && mp[j][i] != 0){
score += mp[j][i];
mp[j-1][i] += mp[j][i];
mp[j][i] = 0;
move = true;
}
}
}
//移动
for(int i=0;i<4;i++){
for(int j=1;j<4;j++){
if(mp[j][i] != 0){
int l = j;
while(l-1>=0&&mp[l-1][i]==0){
l--;
mp[l][i] = mp[l+1][i];
mp[l+1][i] = 0;
move = true;
}
}
}
}
finalScore += score;
return score;
}
public int leftUnion() {
int score = 0;
//移动
for(int i=0;i<4;i++){
for(int j=1;j<4;j++){
if(mp[i][j] != 0){
int l = j;
while(l-1>=0&&mp[i][l-1]==0){
l--;
mp[i][l] = mp[i][l+1];
mp[i][l+1] = 0;
move = true;
}
}
}
}
//合并
for(int i=0;i<4;i++){
for(int j=1;j<4;j++){
if(mp[i][j] == mp[i][j-1] && mp[i][j] != 0){
score += mp[i][j];
mp[i][j-1] += mp[i][j];
mp[i][j] = 0;
move = true;
}
}
}
//移动
for(int i=0;i<4;i++){
for(int j=1;j<4;j++){
if(mp[i][j] != 0){
int l = j;
while(l-1>=0&&mp[i][l-1]==0){
l--;
mp[i][l] = mp[i][l+1];
mp[i][l+1] = 0;
move = true;
}
}
}
}
finalScore += score;
return score;
}
public int rightUnion() {
int score = 0;
for(int i=0;i<4;i++){
for(int j=2;j>=0;j--){
if(mp[i][j] != 0){
int l = j;
while(l+1<4&&mp[i][l+1]==0){
l++;
mp[i][l] = mp[i][l-1];
mp[i][l-1]=0;
move = true;
}
}
}
}
//合并
for(int i=0;i<4;i++){
for(int j=2;j>=0;j--){
if(mp[i][j] == mp[i][j+1] && mp[i][j] != 0){
score += mp[i][j];
mp[i][j+1] += mp[i][j];
mp[i][j] = 0;
move = true;
}
}
}
//移动
for(int i=0;i<4;i++){
for(int j=2;j>=0;j--){
if(mp[i][j] != 0){
int l = j;
while(l+1<4&&mp[i][l+1]==0){
l++;
mp[i][l] = mp[i][l-1];
mp[i][l-1]=0;
move = true;
}
}
}
}
finalScore += score;
return score;
}
public boolean nextOp() {
if(!getNext()) return false;
mp[x][y] = getVal();
move = false;
return true;
}
}
效果图：
