Java development Snake games

@[TOP](Greedy Snake)

Java development Snake games

1, Development ideas

Set a certain size and immutable game window
Draw the basic panel style of the game on the created window
Draw a static snake using the saved material icon in advance
Enable the snake to move; In fact, only the snake head coordinates need to move, and each body section covers the body coordinates of the previous section. Set the Timer timer =new Timer(); Monitoring time allows the snake to move
Monitor the keyboard operation, so that the user can control the direction of the snake through the keyboard
Define a food coordinate and realize the random generation of food with random random number class
When the snake eats food, its body length is + 1. In fact, when the snake head coordinates coincide with the food coordinates
boolean Defines the judgment of game failure. When the snake head coincides with the coordinates of any body part (or hits the boundary), the game fails. You can set up the integral system and add a certain score for each food you eat

2, Specific development process

1. Draw a static game window

JFrame jFrame = new JFrame("Greedy Snake");//Draw a static window
jFrame.setBounds(10,10,900,720);//Set interface size
jFrame.setResizable(false);//The window size cannot be changed
jFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);//Set window close event
jFrame.setVisible(true);//Window display 
jFrame.add(new GamePanel());//Add panel to window

2. Import material Icon

public class Data {
    public static URL headerUrl = Data.class.getResource("/statics/header.png");//Locate picture address
    public static ImageIcon header =new ImageIcon(headerUrl);//Draw pictures by picture address
}

3. Draw the game panel

@Override
    protected void paintComponent(Graphics g) {         //Graphics: Brush
        super.paintComponent(g);//Clear screen
        this.setBackground(Color.darkGray);//Set background color
        Data.header.paintIcon(this,g,25,11);//Draw header billboard
        g.fillRect(25,75,850,600);//Draw game area

4. Draw a static snake

definition

int length;//Snake length
    int[] snakeX=new int[600];
    int[] snakeY=new int[500];//Snake coordinates
    String dir;//Head direction
    boolean isStart=false;
    boolean isFail for (int j = 1; j < length; j++) {
                if (snakeX[j]==snakeX[0]&&snakeY[j]==snakeY[0]){
                    isFail=true;
                }
            }
            repaint();=false;

draw

if (dir.equals("R")) {
            Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);
        } else if (dir.equals("L")){
            Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("U")){
            Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("D")){
            Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);
        }//Head (up, down, left and right)
        for (int i = 1; i < length; i++) {
            Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);
        }//Draw body length by looping

5. Let the snake move

① Monitor keyboard input

Implement the Keylistener interface and override the KeyPressed() method (press the keyboard)

public void keyPressed(KeyEvent e) {   //Keyboard pressed not released
        int keyCode = e.getKeyCode();
        if(keyCode==KeyEvent.VK_SPACE){//Space bar
            if (isFail){
                isFail=false;
                init();//Reinitialize
            }else {//Pause the game
                isStart=!isStart;
            }
            repaint();//Refresh interface
        }
}

② Construct timer listening time

Timer timer =new Timer(50,this);//timer

③ Implement ActionListener interface (event listening)

Override actionPerformed(ActionEvent e) method

@Override
    public void actionPerformed(ActionEvent e) {
        if(isStart && isFail==false){//The game is in the start state and the game has not failed
            for (int i = length-1; i >0; i--) {
                snakeX[i]=snakeX[i-1];
                snakeY[i]=snakeY[i-1];//Body movement
            }
            if (dir.equals("R")) {
                snakeX[0]=snakeX[0]+25;//Head movement
            } else if (dir.equals("L")){
                snakeX[0]=snakeX[0]-25;
            } else if (dir.equals("U")){
                snakeY[0]=snakeY[0]-25;
            } else if (dir.equals("D")){
                snakeY[0]=snakeY[0]+25;
            }
            repaint();//Refresh page
        }
        timer.start();//Make time start to move
    }

6. Enable the user to control the direction of the snake through the keyboard

 @Override
    public void keyPressed(KeyEvent e) {
if (keyCode==KeyEvent.VK_UP||keyCode==KeyEvent.VK_W){
            if (!dir.equals("D")){//So that the little snake can't turn back directly
                dir="U";
            }
        }else if (keyCode==KeyEvent.VK_DOWN||keyCode==KeyEvent.VK_S){
            if (!dir.equals("U")){
                dir="D";
            }
        }else if (keyCode==KeyEvent.VK_LEFT||keyCode==KeyEvent.VK_A){
            if (!dir.equals("R")){
                dir="L";
            }
        }else if (keyCode==KeyEvent.VK_RIGHT||keyCode==KeyEvent.VK_D) {
            if (!dir.equals("L")) {
                dir = "R";
            }
        }
}

7. Add food and credit system

int foodX;int foodY;//Define food coordinates
    Random random=new Random();//Random number class

 //Draw food
        Data.food.paintIcon(this,g,foodX,foodY);

 if (snakeX[0]==foodX&&snakeY[0]==foodY){//The coordinates of the head and food coincide
                length++;//Length + 1
                score+=10;//Score + 10
                foodX=25+25*random.nextInt(34);
                foodY=75+25*random.nextInt(24);//Regenerate food

            }

8. Failure judgment

 for (int j = 1; j < length; j++) {
                if (snakeX[j]==snakeX[0]&&snakeY[j]==snakeY[0]){
                    isFail=true;
                }//The coordinates of the snake head coincide with the body
            }
if (snakeX[0]>=850||snakeX[0]<=25||snakeY[0]<=75||snakeY[0]>=650){
                isFail=true;
            }//Failed to set wall collision

3, Effect screenshot

start

fail

4, Source code

StartGames.Java

package com.wx.snake;
import javax.swing.*;
public class StartGames {
    public static void main(String[] args) {
        JFrame jFrame = new JFrame("Greedy Snake");//Draw a static window
        jFrame.setBounds(10,10,900,720);//Set interface size
        jFrame.setResizable(false);//The window size cannot be changed
        jFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);//Set window close event
        jFrame.setVisible(true);//Window display 
        jFrame.add(new GamePanel());//Add panel to window
    }
}

GamePanel.java

package com.wx.snake;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;

public class GamePanel extends JPanel implements KeyListener, ActionListener {//JPanel: panel container class, which can be added to JFrame

    int length;//Snake length
    int[] snakeX=new int[600];
    int[] snakeY=new int[500];//Snake coordinates
    String dir;//Head direction
    boolean isStart=false;
    Timer timer =new Timer(50,this);//timer
    int foodX;int foodY;//Define food coordinates
    Random random=new Random();//Random number class
    boolean isFail=false;//Death judgment
    int score;//Integral system

    //constructor 
    public GamePanel(){
        init();
        //Get the listening event of the keyboard
        this.setFocusable(true);//Focus on the game interface
        this.addKeyListener(this);//Add listening
        timer.start();//Make time start to move
    }

    //initialization
    public void init(){
        length=3;
        snakeX[0]=100;snakeY[0]=100;//Head coordinates
        snakeX[1]=snakeX[0]-25;snakeY[1]=snakeY[0];//Section I body coordinates
        snakeX[2]=snakeX[0]-50;snakeY[2]=snakeY[0];//Section II body coordinates
        dir="R";
        foodX=25+25*random.nextInt(34);
        foodY=75+25*random.nextInt(24);//Food random coordinates
        score=0;
    }

    //Drawing board (drawing interface, drawing snake)
    @Override
    protected void paintComponent(Graphics g) {         //Brushes: Graphics
        super.paintComponent(g);//Clear screen
        this.setBackground(Color.darkGray);//Set background color
        Data.header.paintIcon(this,g,25,11);//Draw header billboard
        g.fillRect(25,75,850,600);//Draw game area
        //Draw static snake
        if (dir.equals("R")) {
            Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);
        } else if (dir.equals("L")){
            Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("U")){
            Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("D")){
            Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);
        }//Head (up, down, left and right)
        for (int i = 1; i < length; i++) {
            Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);
        }//Draw body length by looping
        if(isStart==false){//Game tip: start
            g.setColor(Color.ORANGE); //Set brush color
            g.setFont(new Font("Blackbody",Font.BOLD,40));//Set font
            g.drawString("Press the space to start the game",300,300);  //Draw a text
        }
        //Draw food
        Data.food.paintIcon(this,g,foodX,foodY);
        //Failure reminder
        if (isFail){
            g.setColor(Color.red); //Set brush color
            g.setFont(new Font("Regular script",Font.BOLD,40));//Set font
            g.drawString("  Game failure",335,300);  //Draw a text
            g.drawString("Your score "+score,333,350);
            g.drawString("Press space to restart",310,400);
        }
        //integral
        g.setColor(Color.CYAN); //Set brush color
        g.setFont(new Font("Founder bold black song simplified Chinese",Font.BOLD,20));//Set font
        g.drawString("Length:"+length,750,34);  //Draw a text
        g.drawString("fraction:"+score,750,59);
    }

    //Receive keyboard input: Monitor
    @Override
    public void keyPressed(KeyEvent e) {   //Keyboard pressed not released
        int keyCode = e.getKeyCode();
        if(keyCode==KeyEvent.VK_SPACE){//Space bar
            if (isFail){
                isFail=false;
                init();//Reinitialize
            }else {//Pause the game
                isStart=!isStart;
            }
            repaint();//Refresh interface
        }
        if (keyCode==KeyEvent.VK_UP||keyCode==KeyEvent.VK_W){
            if (!dir.equals("D")){
                dir="U";
            }
        }else if (keyCode==KeyEvent.VK_DOWN||keyCode==KeyEvent.VK_S){
            if (!dir.equals("U")){
                dir="D";
            }
        }else if (keyCode==KeyEvent.VK_LEFT||keyCode==KeyEvent.VK_A){
            if (!dir.equals("R")){
                dir="L";
            }
        }else if (keyCode==KeyEvent.VK_RIGHT||keyCode==KeyEvent.VK_D) {
            if (!dir.equals("L")) {
                dir = "R";
            }
        }

    }
    
    //Timer, monitor time, frame: execute timing operation
    @Override
    public void actionPerformed(ActionEvent e) {
        if(isStart && isFail==false){//The game is in the start state and the game has not failed
            for (int i = length-1; i >0; i--) {
                snakeX[i]=snakeX[i-1];
                snakeY[i]=snakeY[i-1];//Body movement
            }
            if (dir.equals("R")) {
                snakeX[0]=snakeX[0]+25;//Head movement
                //if (snakeX[0]>850){snakeX[0]=25;}// Boundary judgment
            } else if (dir.equals("L")){
                snakeX[0]=snakeX[0]-25;
                //if (snakeX[0]<25){snakeX[0]=850;}// Boundary judgment
            } else if (dir.equals("U")){
                snakeY[0]=snakeY[0]-25;
               // if (snakeY[0]<75){snakeY[0]=650;}// Boundary judgment
            } else if (dir.equals("D")){
                snakeY[0]=snakeY[0]+25;
                //if (snakeY[0]>650){snakeY[0]=75;}// Boundary judgment
            }
            if (snakeX[0]>=850||snakeX[0]<=25||snakeY[0]<=75||snakeY[0]>=650){
                isFail=true;
            }//Failed to set wall collision
            if (snakeX[0]==foodX&&snakeY[0]==foodY){//The coordinates of the head and food coincide
                length++;//Length + 1
                score+=10;
                foodX=25+25*random.nextInt(34);
                foodY=75+25*random.nextInt(24);//Regenerate food
            }
            //Failure judgment
            for (int j = 1; j < length; j++) {
                if (snakeX[j]==snakeX[0]&&snakeY[j]==snakeY[0]){
                    isFail=true;
                }
            }
            repaint();
        }
        timer.start();//Make time start to move
    }
    @Override
    public void keyTyped(KeyEvent e) {
    }//Press and pop up the keyboard
    @Override
    public void keyReleased(KeyEvent e) {
    }//Keyboard release
}

Java development Snake games

1, Development ideas

Set a certain size and immutable game window
Draw the basic panel style of the game on the created window
Draw a static snake using the saved material icon in advance
Enable the snake to move; In fact, only the snake head coordinates need to move, and each body section covers the body coordinates of the previous section. Set the Timer timer =new Timer(); Monitoring time allows the snake to move
Monitor the keyboard operation, so that the user can control the direction of the snake through the keyboard
Define a food coordinate and realize the random generation of food with random random number class
When the snake eats food, its body length is + 1. In fact, when the snake head coordinates coincide with the food coordinates
boolean Defines the judgment of game failure. When the snake head coincides with the coordinates of any body part (or hits the boundary), the game fails. You can set up the integral system and add a certain score for each food you eat

2, Specific development process

1. Draw a static game window

JFrame jFrame = new JFrame("Greedy Snake");//Draw a static window
jFrame.setBounds(10,10,900,720);//Set interface size
jFrame.setResizable(false);//The window size cannot be changed
jFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);//Set window close event
jFrame.setVisible(true);//Window display 
jFrame.add(new GamePanel());//Add panel to window

2. Import material Icon

public class Data {
    public static URL headerUrl = Data.class.getResource("/statics/header.png");//Locate picture address
    public static ImageIcon header =new ImageIcon(headerUrl);//Draw pictures by picture address
}

3. Draw the game panel

@Override
    protected void paintComponent(Graphics g) {         //Graphics: Brush
        super.paintComponent(g);//Clear screen
        this.setBackground(Color.darkGray);//Set background color
        Data.header.paintIcon(this,g,25,11);//Draw header billboard
        g.fillRect(25,75,850,600);//Draw game area

4. Draw a static snake

definition

int length;//Snake length
    int[] snakeX=new int[600];
    int[] snakeY=new int[500];//Snake coordinates
    String dir;//Head direction
    boolean isStart=false;
    boolean isFail for (int j = 1; j < length; j++) {
                if (snakeX[j]==snakeX[0]&&snakeY[j]==snakeY[0]){
                    isFail=true;
                }
            }
            repaint();=false;

draw

if (dir.equals("R")) {
            Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);
        } else if (dir.equals("L")){
            Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("U")){
            Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("D")){
            Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);
        }//Head (up, down, left and right)
        for (int i = 1; i < length; i++) {
            Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);
        }//Draw body length by looping

5. Let the snake move

① Monitor keyboard input

Implement the Keylistener interface and override the KeyPressed() method (press the keyboard)

public void keyPressed(KeyEvent e) {   //Keyboard pressed not released
        int keyCode = e.getKeyCode();
        if(keyCode==KeyEvent.VK_SPACE){//Space bar
            if (isFail){
                isFail=false;
                init();//Reinitialize
            }else {//Pause the game
                isStart=!isStart;
            }
            repaint();//Refresh interface
        }
}

② Construct timer listening time

Timer timer =new Timer(50,this);//timer

③ Implement ActionListener interface (event listening)

Override actionPerformed(ActionEvent e) method

@Override
    public void actionPerformed(ActionEvent e) {
        if(isStart && isFail==false){//The game is in the start state and the game has not failed
            for (int i = length-1; i >0; i--) {
                snakeX[i]=snakeX[i-1];
                snakeY[i]=snakeY[i-1];//Body movement
            }
            if (dir.equals("R")) {
                snakeX[0]=snakeX[0]+25;//Head movement
            } else if (dir.equals("L")){
                snakeX[0]=snakeX[0]-25;
            } else if (dir.equals("U")){
                snakeY[0]=snakeY[0]-25;
            } else if (dir.equals("D")){
                snakeY[0]=snakeY[0]+25;
            }
            repaint();//Refresh page
        }
        timer.start();//Make time start to move
    }

6. Enable the user to control the direction of the snake through the keyboard

 @Override
    public void keyPressed(KeyEvent e) {
if (keyCode==KeyEvent.VK_UP||keyCode==KeyEvent.VK_W){
            if (!dir.equals("D")){//So that the little snake can't turn back directly
                dir="U";
            }
        }else if (keyCode==KeyEvent.VK_DOWN||keyCode==KeyEvent.VK_S){
            if (!dir.equals("U")){
                dir="D";
            }
        }else if (keyCode==KeyEvent.VK_LEFT||keyCode==KeyEvent.VK_A){
            if (!dir.equals("R")){
                dir="L";
            }
        }else if (keyCode==KeyEvent.VK_RIGHT||keyCode==KeyEvent.VK_D) {
            if (!dir.equals("L")) {
                dir = "R";
            }
        }
}

7. Add food and credit system

int foodX;int foodY;//Define food coordinates
    Random random=new Random();//Random number class

 //Draw food
        Data.food.paintIcon(this,g,foodX,foodY);

 if (snakeX[0]==foodX&&snakeY[0]==foodY){//The coordinates of the head and food coincide
                length++;//Length + 1
                score+=10;//Score + 10
                foodX=25+25*random.nextInt(34);
                foodY=75+25*random.nextInt(24);//Regenerate food

            }

8. Failure judgment

 for (int j = 1; j < length; j++) {
                if (snakeX[j]==snakeX[0]&&snakeY[j]==snakeY[0]){
                    isFail=true;
                }//The coordinates of the snake head coincide with the body
            }
if (snakeX[0]>=850||snakeX[0]<=25||snakeY[0]<=75||snakeY[0]>=650){
                isFail=true;
            }//Failed to set wall collision

3, Effect screenshot

start

fail

4, Source code

StartGames.Java

package com.wx.snake;
import javax.swing.*;
public class StartGames {
    public static void main(String[] args) {
        JFrame jFrame = new JFrame("Greedy Snake");//Draw a static window
        jFrame.setBounds(10,10,900,720);//Set interface size
        jFrame.setResizable(false);//The window size cannot be changed
        jFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);//Set window close event
        jFrame.setVisible(true);//Window display 
        jFrame.add(new GamePanel());//Add panel to window
    }
}

GamePanel.java

package com.wx.snake;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;

public class GamePanel extends JPanel implements KeyListener, ActionListener {//JPanel: panel container class, which can be added to JFrame

    int length;//Snake length
    int[] snakeX=new int[600];
    int[] snakeY=new int[500];//Snake coordinates
    String dir;//Head direction
    boolean isStart=false;
    Timer timer =new Timer(50,this);//timer
    int foodX;int foodY;//Define food coordinates
    Random random=new Random();//Random number class
    boolean isFail=false;//Death judgment
    int score;//Integral system

    //constructor 
    public GamePanel(){
        init();
        //Get the listening event of the keyboard
        this.setFocusable(true);//Focus on the game interface
        this.addKeyListener(this);//Add listening
        timer.start();//Make time start to move
    }

    //initialization
    public void init(){
        length=3;
        snakeX[0]=100;snakeY[0]=100;//Head coordinates
        snakeX[1]=snakeX[0]-25;snakeY[1]=snakeY[0];//Section I body coordinates
        snakeX[2]=snakeX[0]-50;snakeY[2]=snakeY[0];//Section II body coordinates
        dir="R";
        foodX=25+25*random.nextInt(34);
        foodY=75+25*random.nextInt(24);//Food random coordinates
        score=0;
    }

    //Drawing board (drawing interface, drawing snake)
    @Override
    protected void paintComponent(Graphics g) {         //Graphics: Brush
        super.paintComponent(g);//Clear screen
        this.setBackground(Color.darkGray);//Set background color
        Data.header.paintIcon(this,g,25,11);//Draw header billboard
        g.fillRect(25,75,850,600);//Draw game area
        //Draw static snake
        if (dir.equals("R")) {
            Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);
        } else if (dir.equals("L")){
            Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("U")){
            Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if (dir.equals("D")){
            Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);
        }//Head (up, down, left and right)
        for (int i = 1; i < length; i++) {
            Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);
        }//Draw body length by looping
        if(isStart==false){//Game tip: start
            g.setColor(Color.ORANGE); //Set brush color
            g.setFont(new Font("Blackbody",Font.BOLD,40));//Set font
            g.drawString("Press the space to start the game",300,300);  //Draw a text
        }
        //Draw food
        Data.food.paintIcon(this,g,foodX,foodY);
        //Failure reminder
        if (isFail){
            g.setColor(Color.red); //Set brush color
            g.setFont(new Font("Regular script",Font.BOLD,40));//Set font
            g.drawString("  Game failure",335,300);  //Draw a text
            g.drawString("Your score "+score,333,350);
            g.drawString("Press space to restart",310,400);
        }
        //integral
        g.setColor(Color.CYAN); //Set brush color
        g.setFont(new Font("Founder bold black song simplified Chinese",Font.BOLD,20));//Set font
        g.drawString("Length:"+length,750,34);  //Draw a text
        g.drawString("fraction:"+score,750,59);
    }

    //Receive keyboard input: Monitor
    @Override
    public void keyPressed(KeyEvent e) {   //Keyboard pressed not released
        int keyCode = e.getKeyCode();
        if(keyCode==KeyEvent.VK_SPACE){//Space bar
            if (isFail){
                isFail=false;
                init();//Reinitialize
            }else {//Pause the game
                isStart=!isStart;
            }
            repaint();//Refresh interface
        }
        if (keyCode==KeyEvent.VK_UP||keyCode==KeyEvent.VK_W){
            if (!dir.equals("D")){
                dir="U";
            }
        }else if (keyCode==KeyEvent.VK_DOWN||keyCode==KeyEvent.VK_S){
            if (!dir.equals("U")){
                dir="D";
            }
        }else if (keyCode==KeyEvent.VK_LEFT||keyCode==KeyEvent.VK_A){
            if (!dir.equals("R")){
                dir="L";
            }
        }else if (keyCode==KeyEvent.VK_RIGHT||keyCode==KeyEvent.VK_D) {
            if (!dir.equals("L")) {
                dir = "R";
            }
        }

    }
    
    //Timer, monitor time, frame: execute timing operation
    @Override
    public void actionPerformed(ActionEvent e) {
        if(isStart && isFail==false){//The game is in the start state and the game has not failed
            for (int i = length-1; i >0; i--) {
                snakeX[i]=snakeX[i-1];
                snakeY[i]=snakeY[i-1];//Body movement
            }
            if (dir.equals("R")) {
                snakeX[0]=snakeX[0]+25;//Head movement
                //if (snakeX[0]>850){snakeX[0]=25;}// Boundary judgment
            } else if (dir.equals("L")){
                snakeX[0]=snakeX[0]-25;
                //if (snakeX[0]<25){snakeX[0]=850;}// Boundary judgment
            } else if (dir.equals("U")){
                snakeY[0]=snakeY[0]-25;
               // if (snakeY[0]<75){snakeY[0]=650;}// Boundary judgment
            } else if (dir.equals("D")){
                snakeY[0]=snakeY[0]+25;
                //if (snakeY[0]>650){snakeY[0]=75;}// Boundary judgment
            }
            if (snakeX[0]>=850||snakeX[0]<=25||snakeY[0]<=75||snakeY[0]>=650){
                isFail=true;
            }//Failed to set wall collision
            if (snakeX[0]==foodX&&snakeY[0]==foodY){//The coordinates of the head and food coincide
                length++;//Length + 1
                score+=10;
                foodX=25+25*random.nextInt(34);
                foodY=75+25*random.nextInt(24);//Regenerate food
            }
            //Failure judgment
            for (int j = 1; j < length; j++) {
                if (snakeX[j]==snakeX[0]&&snakeY[j]==snakeY[0]){
                    isFail=true;
                }
            }
            repaint();
        }
        timer.start();//Make time start to move
    }
    @Override
    public void keyTyped(KeyEvent e) {
    }//Press and pop up the keyboard
    @Override
    public void keyReleased(KeyEvent e) {
    }//Keyboard release
}

Keywords: Java Back-end

Added by sastro on Wed, 23 Feb 2022 16:27:09 +0200

Programming VIP

Java development Snake games

Java development Snake games

1, Development ideas

2, Specific development process

1. Draw a static game window

2. Import material Icon

3. Draw the game panel

4. Draw a static snake

5. Let the snake move

① Monitor keyboard input

Implement the Keylistener interface and override the KeyPressed() method (press the keyboard)

② Construct timer listening time

③ Implement ActionListener interface (event listening)

6. Enable the user to control the direction of the snake through the keyboard

7. Add food and credit system

8. Failure judgment

3, Effect screenshot

4, Source code

Java development Snake games

1, Development ideas

2, Specific development process

1. Draw a static game window

2. Import material Icon

3. Draw the game panel

4. Draw a static snake

5. Let the snake move

① Monitor keyboard input

Implement the Keylistener interface and override the KeyPressed() method (press the keyboard)

② Construct timer listening time

③ Implement ActionListener interface (event listening)

6. Enable the user to control the direction of the snake through the keyboard

7. Add food and credit system

8. Failure judgment

3, Effect screenshot

4, Source code

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