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This article mainly introduces how to use Java to achieve the classic game 2048, the article introduces in great detail, has a certain reference value, interested friends must finish!

Main design

1. Game panel generation display

2. Square design

3, keyboard monitoring, key control digital movement

4. Digital mobile logic algorithm processing

5. The number adds up to 2048 and the game wins.

Function screenshot

The game begins.

Moving effect

The code implements the interface layout class public class Game2048View implements ActionListener {Block [] blocks; / / Square JPanel myJPanel; / / main panel JPanel jp1,jp2; / / sub-panel / / int moveFlag; / / for cumulative number of moves boolean numFlag / / used to determine whether a new digital JLabel scroeValue; can be added / / display score public Game2048View (JFrame myJFrame) {blocks=new Block [16]; / moveFlag=0; numFlag=true; this.myJPanel= (JPanel) myJFrame.getContentPane (); / / get content panel setJp1 () MyJPanel.add (jp1,BorderLayout.NORTH); setJp2 (); myJPanel.add (jp2, BorderLayout.CENTER); myJFrame.addKeyListener (new Game2048Logic (this,myJFrame,blocks,numFlag,scroeValue)) } public void addc (JPanel jp1,Component component, GridBagConstraints gbc,int gridwidth,int gridheight, int weightx,int weighty,int gridx,int gridy) {/ / this method is used to add controls to the container gbc.gridwidth=gridwidth / / this method sets the number of cells occupied by the component horizontally. If 0, it means that the component is the last gbc.gridheight=gridheight; of the line / / the method is to set the number of cells occupied by the component vertically gbc.weightx=weightx / / this method sets the horizontal stretch of the component. If it is 0, it will not stretch, otherwise it will stretch as the window increases, and gbc.weighty=weighty between 0 and 1 / / this method sets the vertical stretch of the component. If it is 0, it will not stretch. If not, it will stretch as the window grows. Gbc.gridx=gridx; gbc.gridy=gridy; gbc.fill=GridBagConstraints.BOTH; jp1.add (component,gbc) between 0 and 1. } public void setJp1 () {GridBagLayout gbLayout=new GridBagLayout (); jp1=new JPanel (gbLayout); JPanel Jtitle=new JPanel (); JLabel title=new JLabel ("2048"); title.setFont (new Font ("font", Font.PLAIN, 45)) / / Type, style, size title.setHorizontalAlignment (JLabel.LEFT); / / jLabel text left and right alignment property setting method, alignment Jtitle.add (title); jp1.add (Jtitle); JPanel Jscroe=new JPanel (new GridLayout (2,1)); / / new GridLayout (2,1) is a grid layout style. The parameter "2"1" is the number of rows and columns of the grid, respectively. JLabel scroe=new JLabel ("Scroe"); scroe.setFont (new Font ("font", Font.PLAIN, 16)); scroe.setHorizontalAlignment (JLabel.CENTER); scroeValue=new JLabel ("0"); scroeValue.setFont (new Font ("font", Font.PLAIN, 16)); scroeValue.setHorizontalAlignment (JLabel.CENTER); Jscroe.add (scroe) Jscroe.add (scroeValue); jp1.add (Jscroe); JPanel Jnoite=new JPanel (); JLabel noite=new JLabel ("arrow keys add up to 2048"); noite.setFont (new Font ("font", Font.PLAIN, 14); noite.setHorizontalAlignment (JLabel.LEFT) Jnoite.add (noite); jp1.add (Jnoite); JPanel JnewGame=new JPanel (); JButton newGame=new JButton ("New Game"); newGame.setHorizontalAlignment (JButton.CENTER); newGame.addActionListener (this); JnewGame.add (newGame); jp1.add (JnewGame) GridBagConstraints gbc=new GridBagConstraints (); addc (jp1, Jtitle, gbc, 3,2,60,60,0,0); addc (jp1, Jscroe, gbc, 0,2,40,60,3,0); addc (jp1, Jnoite, gbc, 3,1,60,40,0,2) Addc (jp1, JnewGame, gbc, 0,1,40,40,3,2);} public void setJp2 () {addBlock (); initBlock (); initBlock () } / * add box * / public void addBlock () {jp2=new JPanel (); / * * setLayout is set to streaming layout for the current component. Components are arranged in the form from left to right if they wrap to the end of the row * GridLayout (int rows, int cols, int hgap, int vgap) creates a grid layout with the specified number of rows and columns. Rows-the rows has a value cols for any number of rows-the cols has a value for any number of columns hgap-horizontal spacing vgap-vertical spacing * / jp2.setLayout (new GridLayout (4,4,5,5)); for (int I = 0; I

< blocks.length; i++) { blocks[i]=new Block(); blocks[i].setHorizontalAlignment(JLabel.CENTER);// 不透明的标签 blocks[i].setOpaque(true);// 设置控件不透明 jp2.add(blocks[i]); } } /** * 初始化方块 */ public void initBlock(){ while (numFlag) { int index=(int) (Math.random()*16); if (blocks[index].getText().trim().equals("")) { blocks[index].setValue("2"); break; } else { continue; } } } /** * 获得第一个子面板的高度 */ public int getMyJPanelHeidth() { return jp1.getSize().height; } @Override public void actionPerformed(ActionEvent e) { // TODO 自动生成的方法存根 newGame(); } /** * 重新开始游戏 */ public void newGame() { for (int i = 0; i < blocks.length; i++) { blocks[i].setValue(""); } numFlag=true; scroeValue.setText("0"); initBlock(); initBlock(); }}业务逻辑类public class Game2048Logic implements KeyListener{ Block[] blocks; boolean numFlag; // 用于判断是否还能加入新的数字 JLabel scroeValue; //显示分数 int blocksarr[]=new int[4]; //保存一行/列方块中的数值 JFrame myJFrame; int scroe=0; Game2048View game2048View; //初始化键盘事件 public Game2048Logic(Game2048View game2048View, JFrame myJFrame, Block[] blocks,boolean numFlag,JLabel scroeValue) { // TODO 自动生成的构造函数存根 this.blocks=blocks; this.numFlag=numFlag; this.scroeValue=scroeValue; this.myJFrame=myJFrame; this.game2048View=game2048View; } //初始化按钮事件 public Game2048Logic() { // TODO 自动生成的构造函数存根 } public boolean getnumFlag() { return numFlag; } @Override public void keyPressed(KeyEvent e) { // TODO 自动生成的方法存根 int[] blocksarr=getBlock(); switch (e.getKeyCode()) { case KeyEvent.VK_UP: colBlock("up"); hasEmptyBlock(); if (Arrays.equals(blocksarr, getBlock())) { } else { refershBlock(); } isGameFail("up"); break; case KeyEvent.VK_DOWN: colBlock("down"); hasEmptyBlock(); if (Arrays.equals(blocksarr, getBlock())) { } else { refershBlock(); } isGameFail("down"); break; case KeyEvent.VK_LEFT: rowBlock("left"); hasEmptyBlock(); if (Arrays.equals(blocksarr, getBlock())) { } else { refershBlock(); } isGameFail("left"); break; case KeyEvent.VK_RIGHT: rowBlock("right"); hasEmptyBlock(); if (Arrays.equals(blocksarr, getBlock())) { } else { refershBlock(); } isGameFail("right"); break; default: break; } scroeValue.setText(""+scroe); win(); } /** * 垂直方向方块移动处理函数 */ public void colBlock(String direction){ int tmp1=0; int tmp2=0; int index=0; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { if (blocks[tmp1].getText().trim().equals("")) { tmp1+=4; if (tmp1>

= 16) {break;} else {continue }} else {blocksarr [index] = Integer.parseInt (blocks [tmp1] .getText (). Trim ()); index+=1; tmp1+=4 If (tmp1 > = 16 | | index > = 4) {break;} else {continue Switch (direction) {case "up": blocksarr=handleBlocksarr (blocksarr); break Case "down": blocksarr=reverseArr (handleBlocksarr (reverseArr (blocksarr); break; default: break } for (int n = 0; n

< blocksarr.length; n++) { if (blocksarr[n]==0) { blocks[tmp2].setText(""); blocks[tmp2].setBackground(Color.gray); } else { blocks[tmp2].setValue(blocksarr[n]+""); } tmp2+=4; } index=0; tmp1=i+1; tmp2=i+1; //清空数组blockarr for (int n = 0; n < blocksarr.length; n++) { blocksarr[n]=0; } } } /** * 水平方向方块移动处理函数 */ public void rowBlock(String direction) { int tmp1=0; int tmp2=0; int index=0; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { if (blocks[tmp1].getText().trim().equals("")) { tmp1+=1; if (tmp1>

= 16) {break;} else {continue }} else {blocksarr [index] = Integer.parseInt (blocks [tmp1] .getText (). Trim ()); index+=1; tmp1+=1 If (tmp1 > = 16 | | index > = 4) {break;} else {continue } switch (direction) {case "left": blocksarr=handleBlocksarr (blocksarr) Break; case "right": blocksarr=reverseArr (handleBlocksarr (reverseArr (blocksarr); break; default: break } for (int n = 0; n

< blocksarr.length; n++) { if (blocksarr[n]==0) { blocks[tmp2].setText(""); blocks[tmp2].setBackground(Color.gray); } else { blocks[tmp2].setValue(blocksarr[n]+""); } tmp2+=1; } index=0; //清空数组blockarr for (int n = 0; n < blocksarr.length; n++) { blocksarr[n]=0; } } } /** * 处理并返回一个数组 */ public int[] handleBlocksarr(int[] blocksarr) { int index=0; int[] result=new int[4]; for (int i = 0; i < blocksarr.length; i++) { //排序 if (blocksarr[i]!=0) { result[index]=blocksarr[i]; index++; } } if (index==0 || index==1) { for (int i = index; i < result.length; i++) { result[i]=0; } } else { for (int i = 0; i < blocksarr.length; i++) { blocksarr[i]=0; } switch (index) { case 2: if (result[0]==result[1]) { blocksarr[0]=result[0]+result[1]; scroe+=result[0]*2; } else { blocksarr=result; } break; case 3: if (result[0]==result[1]) { blocksarr[0]=result[0]+result[1]; scroe+=result[0]*2; blocksarr[1]=result[2]; } else { if (result[1]==result[2]) { blocksarr[0]=result[0]; blocksarr[1]=result[1]+result[2]; scroe+=result[1]*2; } else { blocksarr=result; } } break; case 4: if (result[0]==result[1]) { blocksarr[0]=result[0]+result[1]; scroe+=result[0]*2; if (result[2]==result[3]) { blocksarr[1]=result[2]+result[3]; scroe+=result[2]*2; } else { blocksarr[1]=result[2]; blocksarr[2]=result[3]; } } else { if (result[1]==result[2]) { blocksarr[0]=result[0]; blocksarr[1]=result[1]+result[2]; scroe+=result[1]*2; blocksarr[2]=result[3]; } else { blocksarr[0]=result[0]; blocksarr[1]=result[1]; if (result[2]==result[3]) { blocksarr[2]=result[2]+result[3]; scroe+=result[2]*2; } else { blocksarr=result; } } } break; default: break; } result=blocksarr; } return result; } /** * 反转数组eg:45000 -->

00054 * / public int [] reverseArr (int [] arr) {int [] tmp=new int [arr.length]; int index=arr.length-1; for (int I = 0; I < arr.length; iTunes +) {tmp [index] = ARR [I]; index-- } return tmp Refresh the box and add the new 2 or 4 * / public void refershBlock () {if (numFlag==false) {} while (numFlag) {int index= (int) (Math.random () * 16) If (blocks.getText (). Trim () .equals (")) {if (Math.random () = 16) {break } else {continue } tmp=i+1 If (result==false) {break;}} break Default: break;}} else {result=false;} if (result==true) {JOptionPane.showMessageDialog (null, Game Over, null, JOptionPane.ERROR_MESSAGE) Game2048View.newGame ();} else {}} / * judges whether the game is successful, that is, it successfully accumulates to 2048 * / public void win () {for (int I = 0; I < blocks.length). If (blocks.getText (). Trim (). Equals ("2048")) {JOptionPane.showMessageDialog (null, YOU ARE WIN, null, JOptionPane.ERROR_MESSAGE); game2048View.newGame (); break } / * get all the square contents for comparing * / public int [] getBlock () {int [] blocksarr=new int [16]; for (int I = 0; I < blocks.length) Equals (")) {blocksarr [I] = 0;} else {blocksarr [I] = Integer.parseInt (blocks.getText (). Trim () }} return blocksarr } @ Override public void keyReleased (KeyEvent e) {/ / TODO auto-generated method stub} @ Override public void keyTyped (KeyEvent e) {/ / TODO auto-generated method stub}} above is all the content of the article "how to use Java to achieve Classic Games 2048". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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