使用Java實(shí)現(xiàn)2048小游戲代碼實(shí)例
更新時(shí)間：2023年10月30日 10:33:48 作者：有人_295
這篇文章主要介紹了使用Java實(shí)現(xiàn)2048小游戲代碼實(shí)例,2048 游戲是一款益智類(lèi)游戲,玩家需要通過(guò)合并相同數(shù)字的方塊,不斷合成更大的數(shù)字,最終達(dá)到2048,游戲規(guī)則簡(jiǎn)單,但挑戰(zhàn)性很高,需要玩家靈活運(yùn)用策略和計(jì)算能力,本文將使用Java代碼實(shí)現(xiàn),需要的朋友可以參考下
一、框架
就以個(gè) 2 維數(shù)組，4 個(gè)方向進(jìn)行加法 在空白位置出現(xiàn)隨機(jī)的 2 就行了
二、代碼
1、ConstantValue.java(封裝常量)
import java.awt.Color;
/*
* 封裝常量
* WID：邊長(zhǎng)
* SP：間隔
* lable：各種數(shù)字
* clo：對(duì)應(yīng)數(shù)字顏色
* */
public class ConstantValue {
private static final int WID = 150;
private static final int SP = 10;
private static final int[] label = { 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048};
private static final Color[] clo = {
new Color(200, 200, 200),
new Color(228, 228, 160),
new Color(214, 163, 92),
new Color(234, 124, 72),
new Color(240, 84, 77),
new Color(255, 68, 53),
new Color(200, 200, 64),
new Color(0, 0, 255),
new Color(0, 255, 0),
new Color(255, 0, 0),
new Color(100, 100, 100),
};
public static int getWid() {
return WID;
}
public static int getSp() {
return SP;
}
public static int[] getLabel() {
return label;
}
public static Color[] getClo() {
return clo;
}
}2、Game2048.java
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
public class Game2048 extends JApplet {
private int scores = 0;
private int best = 0;
private boolean change;
private boolean CheckMode = false;
private boolean gameOverFlag = false;
private boolean successFlag = false;
private static JLabel scoreLabel;
private static My2048Panel myp;
private static JButton goBackButton;
public static RectObject[][] rset = new RectObject[4][4];
private Map<Integer, Color> cmap = new HashMap<Integer, Color>();
public RectObject[][] list = new RectObject[4][4];
private LinkedList<ArrayList<Integer>> saveList = new LinkedList<ArrayList<Integer>>();
KeyListener kl = new KeyListener() {
public void keyPressed(KeyEvent e) {
saveTheStep();
goBackButton.setVisible(true);
if (gameOverFlag == true) {
return;
}
if (!aDirAble()) {
gameOver();
}
int key = e.getKeyCode();
switch (key) {
case KeyEvent.VK_UP:
change = false;
moveUp(true);
if (change == true) {
getARandomRect();
//saveTheStep();
}
break;
case KeyEvent.VK_DOWN:
change = false;
moveDown(true);
if (change == true) {
getARandomRect();
//saveTheStep();
}
break;
case KeyEvent.VK_LEFT:
change = false;
moveLeft(true);
if (change == true) {
getARandomRect();
//saveTheStep();
}
break;
case KeyEvent.VK_RIGHT:
change = false;
moveRight(true);
if (change == true) {
getARandomRect();
//saveTheStep();
}
break;
}
//saveTheStep();
}
public void keyTyped(KeyEvent e) {
}
public void keyReleased(KeyEvent e) {
}
};
public Game2048() {
//saveTheStep();
for (int i = 0; i < 11; i++) {
cmap.put(ConstantValue.getLabel()[i], ConstantValue.getClo()[i]);
}
}
//the applet init
public void init() {
Container cp = getContentPane();
cp.setLayout(null);
cp.setFocusable(true);
cp.addKeyListener(kl);
Font font = new Font("TimesNewman", Font.BOLD, 30);
JLabel sl = new JLabel();
sl.setLayout(new GridLayout(2, 1));
JLabel sllb = new JLabel("Scores");
sllb.setFont(font);
scoreLabel = new JLabel("0");
scoreLabel.setFont(font);
sl.add(sllb);
sl.add(scoreLabel);
try {
File file = new File("BestRecord");
if (file.exists()) {
RandomAccessFile f = new RandomAccessFile(file, "rw");
f.seek(0);
best = f.readInt();
f.close();
}
} catch (FileNotFoundException e) {
best = 0;
e.printStackTrace();
} catch (IOException e) {
best = 0;
e.printStackTrace();
}
JLabel bsl = new JLabel();
bsl.setLayout(new GridLayout(2, 1));
JLabel jl = new JLabel("Best");
jl.setFont(font);
JLabel jl1 = new JLabel("" + best);
jl1.setFont(font);
bsl.add(jl);
bsl.add(jl1);
myp = new My2048Panel();
LOGO logo = new LOGO(0, 0);
goBackButton = new JButton("UNDO");
goBackButton.setFont(font);
goBackButton.addActionListener(new goBackListener());
goBackButton.addKeyListener(kl);
JButton jb = new JButton("RESET");
jb.setFont(font);
jb.addActionListener(new resetListener());
jb.addKeyListener(kl);
sl.setBounds(500, 20, 200, 80);
bsl.setBounds(300, 20, 200, 80);
logo.setBounds(0, 0, 600, 100);
myp.setBounds(0, 90, 700, 700);
goBackButton.setBounds(700, 250, 150, 60);
jb.setBounds(700, 450, 150, 60);
cp.add(sl);
cp.add(bsl);
cp.add(logo);
cp.add(myp);
cp.add(goBackButton);
cp.add(jb);
File f = new File("LastRecord");
if (f.exists()) {
try {
RandomAccessFile file = new RandomAccessFile(f, "rw");
int num = file.readInt();
scoreLabel.setText("" + num);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
num = file.readInt();
if (num != 0) {
rset[i][j] = new RectObject();
rset[i][j].value = num;
}
}
}
file.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
} else {
getARandomRect();
getARandomRect();
}
}
//moveLeft
public void moveLeft(boolean flag) {
clearList(list);
for (int i = 0; i < 4; i++) {
int k = 0;
for (int j = 0; j < 4; j++) {
if (rset[i][j] != null) {
list[i][k++] = new RectObject(rset[i][j]);
}
}
}
for (int i = 0; (i < 4) && flag; i++) {
for (int j = 0; j < 3; j++) {
if ((list[i][j] != null) && (list[i][j + 1] != null) &&
(list[i][j].value == list[i][j + 1].value)) {
list[i][j].value *= 2;
if (CheckMode == false) {
int sum = Integer.parseInt(scoreLabel.getText());
sum += list[i][j].value;
scoreLabel.setText("" + sum);
}
list[i][j + 1] = null;
j++;
}
}
}
if (isChange()) {
if (CheckMode == false) {
copySet(rset, list);
repaint();
moveLeft(false);
}
change = true;
} else {
repaint();
}
}
//moveRight
public void moveRight(boolean flag) {
clearList(list);
for (int i = 0; i < 4; i++) {
int k = 3;
for (int j = 3; j > -1; j--) {
if (rset[i][j] != null) {
list[i][k--] = new RectObject(rset[i][j]);
}
}
}
for (int i = 0; (i < 4) && flag; i++) {
for (int j = 3; j > 0; j--) {
if ((list[i][j] != null) && (list[i][j - 1] != null) &&
(list[i][j].value == list[i][j - 1].value)) {
list[i][j].value *= 2;
if (CheckMode == false) {
int sum = Integer.parseInt(scoreLabel.getText());
sum += list[i][j].value;
scoreLabel.setText("" + sum);
}
list[i][j - 1] = null;
j--;
}
}
}
if (isChange()) {
if (CheckMode == false) {
copySet(rset, list);
repaint();
moveRight(false);
}
change = true;
} else {
repaint();
}
}
//moveup
public void moveUp(boolean flag) {
clearList(list);
for (int j = 0; j < 4; j++) {
int k = 0;
for (int i = 0; i < 4; i++) {
if (rset[i][j] != null) {
list[k++][j] = new RectObject(rset[i][j]);
}
}
}
for (int j = 0; (j < 4) && flag; j++) {
for (int i = 0; i < 3; i++) {
if ((list[i][j] != null) && (list[i + 1][j] != null) &&
(list[i][j].value == list[i + 1][j].value)) {
list[i][j].value *= 2;
if (CheckMode == false) {
int sum = Integer.parseInt(scoreLabel.getText());
sum += list[i][j].value;
scoreLabel.setText("" + sum);
}
list[i + 1][j] = null;
i++;
}
}
}
if (isChange()) {
if (CheckMode == false) {
copySet(rset, list);
repaint();
moveUp(false);
}
change = true;
} else {
repaint();
}
}
//movedown
public void moveDown(boolean flag) {
clearList(list);
for (int j = 0; j < 4; j++) {
int k = 3;
for (int i = 3; i > -1; i--) {
if (rset[i][j] != null) {
list[k--][j] = new RectObject(rset[i][j]);
}
}
}
for (int j = 0; (j < 4) && flag; j++) {
for (int i = 3; i > 0; i--) {
if ((list[i][j] != null) && (list[i - 1][j] != null) &&
(list[i][j].value == list[i - 1][j].value)) {
list[i][j].value *= 2;
if (CheckMode == false) {
int sum = Integer.parseInt(scoreLabel.getText());
sum += list[i][j].value;
scoreLabel.setText("" + sum);
}
list[i - 1][j] = null;
i--;
}
}
}
if (isChange()) {
if (CheckMode == false) {
copySet(rset, list);
repaint();
moveDown(false);
}
change = true;
} else {
repaint();
}
}
//other functions
private void copySet(RectObject[][] dst, RectObject[][] src) {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
dst[i][j] = src[i][j];
}
}
}
//detect whether rset is different from list or not
private boolean isChange() {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
if ((rset[i][j] != null) && (list[i][j] != null) && !rset[i][j].equals(list[i][j])) {
return true;
}
if ((rset[i][j] != null) && (list[i][j] == null)) {
return true;
}
if ((rset[i][j] == null) && (list[i][j] != null)) {
return true;
}
}
}
return false;
}
private void clearList(RectObject[][] s) {
for (int i = 0; i < s.length; i++) {
for (int j = 0; j < s[i].length; j++) {
s[i][j] = null;
}
}
}
//get a random rectangle
public void getARandomRect() {
ArrayList<Point> list = new ArrayList<Point>();
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
if (rset[i][j] == null) {
list.add(new Point(i, j));
}
}
}
if ((list.size() == 0) && !aDirAble()) {
gameOver();
return;
}
Random rand = new Random();
int index = rand.nextInt(list.size());
Point loc = (Point) list.get(index);
index = rand.nextInt(2);
rset[loc.x][loc.y] = new RectObject();
if (index == 1) {
rset[loc.x][loc.y].value = 4;
} else {
rset[loc.x][loc.y].value = 2;
}
}
//detect whether there are other steps or not
public boolean aDirAble() {
CheckMode = true;
change = false;
moveLeft(true);
moveRight(true);
moveDown(true);
moveUp(true);
CheckMode = false;
if (change == true) {
return true;
} else {
return false;
}
}
public void gameOver() {
gameOverFlag = true;
JPanel jl = new GameOverPane(myp.getWidth(), myp.getHeight());
jl.setBounds(0, 0, 700, 700);
JButton jb1 = new JButton("Again");
Font font = new Font("TimesRoman", Font.BOLD, 30);
jb1.setOpaque(false);
jb1.setFont(font);
JButton jb2 = new JButton("Close");
jb2.setSize(jb1.getSize());
jb2.setOpaque(false);
jb2.setFont(font);
//保存最高分，分?jǐn)?shù)重置
jb1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
refreshBest();
scoreLabel.setText("0");
myp.remove(jl);
clearList(rset);
myp.validate();
getARandomRect();
getARandomRect();
repaint();
gameOverFlag = false;
}
});
//保存最后結(jié)果
jb2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
refreshBest();
File f = new File("LastRecord");
if (f.exists()) {
f.delete();
}
System.exit(0);
}
});
jl.add(jb1);
jl.add(jb2);
myp.add(jl);
jl.validate();
}
public void gameSuccess() {
JPanel jl = new SuccessPane(myp.getWidth(), myp.getHeight());
jl.setOpaque(false);
jl.setBounds(0, 0, 700, 700);
JButton jb1 = new JButton("Continue");
Font font = new Font("TimesRoman", Font.BOLD, 30);
jb1.setOpaque(false);
jb1.setFont(font);
JButton jb2 = new JButton("Close");
jb2.setSize(jb1.getSize());
jb2.setOpaque(false);
jb2.setFont(font);
jb1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
myp.remove(jl);
myp.validate();
repaint();
}
});
jb2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
refreshBest();
System.exit(0);
}
});
jl.add(jb1);
jl.add(jb2);
myp.add(jl);
jl.validate();
}
public void saveTheStep() {
if (saveList.size() < 20) {
ArrayList<Integer> arr = new ArrayList<Integer>();
int score = Integer.parseInt(scoreLabel.getText());
arr.add(score);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
if (rset[i][j] != null) {
arr.add(rset[i][j].value);
} else {
arr.add(0);
}
}
}
saveList.addLast(arr);
} else {
saveList.removeFirst();
saveTheStep();
}
}
public static String title(Object o) {
String t = o.getClass().toString();
if (t.indexOf("class") != -1) {
t = t.substring(6);
}
return t;
}
public static void refreshBest() {
try {
int best;
File f = new File("BestRecord");
RandomAccessFile file;
if (f.exists()) {
file = new RandomAccessFile(f, "rw");
best = file.readInt();
} else {
file = new RandomAccessFile(f, "rw");
best = 0;
}
// System.out.println("The Best score is "+best);
int cur = Integer.parseInt(scoreLabel.getText());
if (cur > best) {
file.seek(0);
file.writeInt(cur);
}
file.close();
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e2) {
e2.printStackTrace();
}
}
public static void saveRecord() {
try {
RandomAccessFile file = new RandomAccessFile(new File("LastRecord"),
"rw");
int score = Integer.parseInt(scoreLabel.getText());
file.writeInt(score);
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
if (rset[i][j] != null) {
file.writeInt(rset[i][j].value);
} else {
file.writeInt(0);
}
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void run(JApplet applet, int width, int height) {
JFrame frame = new JFrame(title(applet));
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
saveRecord();
refreshBest();
//System.out.println("The score is "+scoreLabel.getText());
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(applet);
frame.setSize(width, height);
applet.init();
applet.start();
frame.setVisible(true);
}
public static void main(String[] args) {
run(new Game2048(), 900, 800);
}
class RectObject {
private int value;
public RectObject() {
value = 0;
}
public RectObject(RectObject obj) {
value = obj.value;
}
public boolean equals(Object inobj) {
RectObject obj = (RectObject) inobj;
if (obj.value == value) {
return true;
}
return false;
}
}
class Point {
int x;
int y;
public Point(int i, int j) {
x = i;
y = j;
}
}
class My2048Panel extends JPanel {
private int[] xindex = {
ConstantValue.getSp(),
(2 * ConstantValue.getSp()) + ConstantValue.getWid(),
(3 * ConstantValue.getSp()) + (2 * ConstantValue.getWid()),
(4 * ConstantValue.getSp()) + (3 * ConstantValue.getWid())
};
private int[] yindex = {
ConstantValue.getSp(),
(2 * ConstantValue.getSp()) + ConstantValue.getWid(),
(3 * ConstantValue.getSp()) + (2 * ConstantValue.getWid()),
(4 * ConstantValue.getSp()) + (3 * ConstantValue.getWid())
};
public void paintComponent(Graphics g) {
//background
super.paintComponent(g);
for (int i = 0; i < xindex.length; i++) {
for (int j = 0; j < yindex.length; j++) {
g.setColor(Color.WHITE);
g.drawRoundRect(
xindex[i], yindex[j],
ConstantValue.getWid(), ConstantValue.getWid(),
ConstantValue.getWid() / 5, ConstantValue.getWid() / 5);
g.setColor(new Color(197, 183, 129));
g.fillRoundRect(
xindex[i], yindex[j],
ConstantValue.getWid(), ConstantValue.getWid(),
ConstantValue.getWid() / 5, ConstantValue.getWid() / 5);
}
}
//paint rectangle
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
if (rset[i][j] != null) {
g.setColor(Color.WHITE);
g.drawRoundRect(yindex[j], xindex[i], ConstantValue.getWid(), ConstantValue.getWid(),
ConstantValue.getWid() / 5, ConstantValue.getWid() / 5);
//各數(shù)字顏色
g.setColor((Color) cmap.get(rset[i][j].value));
g.fillRoundRect(yindex[j], xindex[i], ConstantValue.getWid(), ConstantValue.getWid(),
ConstantValue.getWid() / 5, ConstantValue.getWid() / 5);
g.setColor(Color.BLACK);
Font font = new Font("TimesRoman", Font.BOLD, 50);
g.setFont(font);
FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(font);
int len = fm.stringWidth("" + rset[i][j].value);
int hg = fm.getHeight();
g.drawString("" + rset[i][j].value,
(yindex[j] + (ConstantValue.getWid() / 2)) - (len / 2), xindex[i] + (ConstantValue.getWid() / 2) + (hg / 4));
if ((rset[i][j].value == 2048) && (successFlag == false)) {
successFlag = true;
gameSuccess();
}
}
}
}
}
}
class GameOverPane extends JPanel {
public GameOverPane(int w, int h) {
setSize(w, h);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Font font = new Font("TimesRoman", Font.BOLD, 80);
g.setFont(font);
FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(font);
int width = fm.stringWidth("Game Over");
int height = fm.getHeight();
g.setColor(new Color(255, 0, 0));
g.drawString("Game Over!", (getWidth() / 2) - (width / 2),
(getHeight() / 2) - (height / 2));
}
}
class SuccessPane extends JPanel {
public SuccessPane(int w, int h) {
setSize(w, h);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Font font = new Font("TimesRoman", Font.BOLD, 80);
g.setFont(font);
FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(font);
int width = fm.stringWidth("Success!");
int height = fm.getHeight();
g.setColor(new Color(255, 0, 0));
g.drawString("Success!", (getWidth() / 2) - (width / 2),
(getHeight() / 2) - (height / 2));
}
}
class LOGO extends JPanel {
public LOGO(int w, int h) {
setSize(w, h);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Font font = new Font("TimesRoman", Font.BOLD, 60);
g.setFont(font);
FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(font);
int width = fm.stringWidth("2048");
int height = fm.getHeight();
g.setColor(new Color(255, 0, 0));
g.drawString("2048", 20, (getHeight() / 2) + 20);
}
}
public class goBackListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
if (saveList.size() == 0) {
goBackButton.setVisible(false);
return;
}
ArrayList arr = (ArrayList) saveList.getLast();
scoreLabel.setText("" + arr.get(0));
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
int num = (int) arr.get((4 * i) + j + 1);
if (num != 0) {
rset[i][j] = new RectObject();
rset[i][j].value = num;
} else {
rset[i][j] = null;
}
}
}
saveList.removeLast();
repaint();
}
}
public class resetListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
refreshBest();
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
rset[i][j] = null;
}
}
scoreLabel.setText("0");
repaint();
getARandomRect();
getARandomRect();
}
}
}三、界面
到此這篇關(guān)于使用Java實(shí)現(xiàn)2048小游戲代碼實(shí)例的文章就介紹到這了,更多相關(guān)Java實(shí)現(xiàn)2048小游戲內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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